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1

Musgrave, William B., Hankuil Yi, Dustin Kline, et al. "Probing the origins of glutathione biosynthesis through biochemical analysis of glutamate-cysteine ligase and glutathione synthetase from a model photosynthetic prokaryote." Biochemical Journal 450, no. 1 (2013): 63–72. http://dx.doi.org/10.1042/bj20121332.

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Glutathione biosynthesis catalysed by GCL (glutamate-cysteine ligase) and GS (glutathione synthetase) is essential for maintaining redox homoeostasis and protection against oxidative damage in diverse eukaroytes and bacteria. This biosynthetic pathway probably evolved in cyanobacteria with the advent of oxygenic photosynthesis, but the biochemical characteristics of progenitor GCLs and GSs in these organisms are largely unexplored. In the present study we examined SynGCL and SynGS from Synechocystis sp. PCC 6803 using steady-state kinetics. Although SynGCL shares ~15% sequence identity with th
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2

Cathy, Dsilva Oksana Lysunets* Natalia Didyk. "HYPERPLASIA OF THE SUPRARENAL GLANDS IN PRETERM NEWBORN (CASE REPORT VINNYTSYA-CITY CHILD HOSPITAL)." Indian Journal of Medical Research and Pharmaceutical Sciences 4, no. 7 (2017): 8–11. https://doi.org/10.5281/zenodo.831453.

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Congenital adrenal hyperplasia (CAH) due to deficiency of the enzyme 21-hydroxylase (21-OH) is also one of the most common autosomal recessive inherited disorders in humans.The prevalence of CAH is between 1:10,000 and 1:15,000 among the live neonates of North America and Europe. Affected patients cannot synthesize cortisol efficiently. Thus the adrenal cortex is stimulated by corticotropin (ACTH) and overproduces cortisol precursors. Some precursors are diverted to sex hormone biosynthesis, causing signs of androgen excess including ambiguous genitalia in newborn females and rapid postnatal g
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3

Falk, K. C., and D. L. Woods. "Seed yield of successive synthetic generations in summer turnip rape." Canadian Journal of Plant Science 83, no. 2 (2003): 271–74. http://dx.doi.org/10.4141/p01-182.

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One Canadian turnip rapeseed cultivar and four canola-quality strains were used as parents to create 10 two-parent synthetics to assess the performance of successive synthetic generations and determine whether the planting of the Syn0 generation is an alternative to either the Syn1 generation or a single parental planting in summer turnip rape. Parents, as a group, yielded significantly less than Syn0s, Syn1s and Syn2s. The relative order of cultivar groups was consistent over environments (i.e., Syn1 ≥ Syn2 ≥ Syn0 ≥ parents). Key words: Turnip rape (summer), synthetic, Brassica rapa, Brassica
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4

Kousheshi, Navid, Mortaza Yari, Amin Paykani, Ali Saberi Mehr, and German F. de la Fuente. "Effect of Syngas Composition on the Combustion and Emissions Characteristics of a Syngas/Diesel RCCI Engine." Energies 13, no. 1 (2020): 212. http://dx.doi.org/10.3390/en13010212.

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Reactivity controlled compression ignition (RCCI) strategy uses two different fuels with different reactivities which provides more control over the combustion process and has the potential to dramatically lower combustion temperature and NOX and PM emissions. The objective of the present study is to numerically investigate the impact of syngas composition on the combustion and emissions characteristics of an RCCI engine operating with syngas/diesel at constant energy per cycle. For this purpose, different syngas compositions produced through gasification process have been chosen for compariso
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5

Sugarmen, C., A. Rotstein, U. Fisher, and J. Sinai. "Modification of Gas Turbines and Operation with Solar Produced Syngas." Journal of Solar Energy Engineering 126, no. 3 (2004): 867–71. http://dx.doi.org/10.1115/1.1758725.

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Solar energy can be utilized to drive chemical processes to produce syngas, a hydrogen rich fuel that can be used for power generation. ORMAT took part in the Solasys project in which syngas was produced by a reforming process driven by solar energy. The solar energy was concentrated in a volumetric receiver. ORMAT presented two modes of operation for introducing syngas to a gas turbine. One mode of “syngas only” and the second for utilization of mixtures of LPG and syngas. Modification of a gas turbine to be fueled only with syngas, incorporated modifications in the combustion chamber, fuel s
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6

Rahman, Muhammad Ridho, Bambang Sudarmanta, Is Bunyamin Suryo, and Rachmat Hermawan. "Bio-syngas and Natural Gas Blended Fuel for Gas Turbines: A Computational Study." E3S Web of Conferences 576 (2024): 04001. http://dx.doi.org/10.1051/e3sconf/202457604001.

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Combined-cycle power plants (CCPPs) are crucial for the energy transition due to their ability to quickly adjust power output, compensating for renewable energy fluctuations. However, CCPPs face challenges such as limited natural gas and residual greenhouse gas emissions. Bio-syngas, an eco-friendly alternative from various sources, is emerging as a viable substitute. This study used computational fluid dynamics (CFD) simulations to the combustion performance and emissions of gas turbine combustion chambers with bio-syngas and natural gas mixtures. Three types of syngas and four syngas proport
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7

Rabo, Annika, and Degla Salim. "Att synas eller inte synas?" Kulturella Perspektiv – Svensk etnologisk tidskrift 17, no. 3-4 (2008): 11–21. http://dx.doi.org/10.54807/kp.v17.28501.

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This article describes, with Stockholm as an example, how Islamic fashion has become increasingly publicly visible in West Europe. We have made interviews focusing on aesthetic preferences and shopping habits and we have conducted wardrobe studies among young Muslim women. Some choose a strategy of conscious visibility and to be visibly Muslim in public space, thus confronting and challenging what they see as the patronizing gaze of mainstream Sweden. But the strategy of others is to be as invisible as possible in order not to draw attention to themselves and their headscarves. The women we ha
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8

Suparmin, Prayudi, Roswati Nurhasanah, Leopold O. Nelwan, Hanim Salleh, Muhammad Ridwan, and M. Anugerah. "Syngas for Internal Combustion Engines, Current State, and Future Prospects: A Systematic Review." International Journal of Automotive and Mechanical Engineering 21, no. 4 (2024): 11857–76. https://doi.org/10.15282/ijame.21.4.2024.10.0913.

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Biomass is a potential alternative energy source. This study offers a comprehensive analysis of biomass gasification as an energy source, particularly its application in diesel engines, gas engines, and gas turbines. No specific research has been identified that addresses syngas utilization as fuel for internal combustion engines. The paper employs the PRISMA methodology to select and analyze observations. The examination encompasses four subjects: biomass, reactor gasification, operational parameters, and syngas for internal combustion. The Van Krevelen diagram is employed to analyze the char
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9

Gao, Xiao Yan, Ya Ning Zhang, Bing Xi Li, and Lu Dong. "CFD Modeling of an Entrained Flow Gasifier." Applied Mechanics and Materials 448-453 (October 2013): 1624–27. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.1624.

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A 2 D CFD model was established to simulate sawdust gasification in an entrained flow gasifier using Ansys Fluent software. Syngas composition, syngas yield and syngas LHV were evaluated. The simulated syngas compositions were in agreement with the experiment results. The relative errors of syngas yield and LHV varied in the ranges of 2-15% and 1-9%, respectively. The results showed that the numerical model established in this study can be applied to simulate biomass gasification in entrained flow gasifier.
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10

Zhang, Xiuqin, Qiubao Lin, Huiying Liu, Xiaowei Chen, Sunqing Su, and Meng Ni. "Performance Analysis of a Proton Exchange Membrane Fuel Cell Based Syngas." Entropy 21, no. 1 (2019): 85. http://dx.doi.org/10.3390/e21010085.

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External chemical reactors for steam reforming and water gas shift reactions are needed for a proton exchange membrane (PEM) fuel cell system using syngas fuel. For the preheating of syngas and stable steam reforming reaction at 600 °C, residual hydrogen from a fuel cell and a certain amount of additional syngas are burned. The combustion temperature is calculated and the molar ratio of the syngas into burner and steam reformer is determined. Based on thermodynamics and electrochemistry, the electric power density and energy conversion efficiency of a PEM fuel cell based syngas are expressed.
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11

Osipovs, Sergejs, and Aleksandrs Pučkins. "CHOICE THE FILTER FOR TAR REMOVAL FROM SYNGAS." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 1 (June 15, 2017): 211. http://dx.doi.org/10.17770/etr2017vol1.2646.

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One of devices for removing char from syngas is a cloth-based filter. Char is mainly carbon black which is a good adsorbent and can be used for removing tar from syngas. When the latter passes through the filter, the char accumulates in it and adsorbs tar. In order to study effectiveness of this way of removing tar, samples of syngas for further analysis were taken twice, before and after the filter with char. A solid-phase adsorption (SPA) method for determining concentration of tar compounds has been chosen. The research showed that the filter for removing char from syngas proved quite cheap
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12

Acuña López, Pedro, Stefano Rebecchi, Elodie Vlaeminck, et al. "Demonstrating Pilot-Scale Gas Fermentation for Acetate Production from Biomass-Derived Syngas Streams." Fermentation 10, no. 6 (2024): 285. http://dx.doi.org/10.3390/fermentation10060285.

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Gas fermentation is gaining attention as a crucial technology for converting gaseous feedstocks into value-added chemicals. Despite numerous efforts over the past decade to investigate these innovative processes at a lab scale, to date, the evaluation of the technologies in relevant industrial environments is scarce. This study examines the fermentative production of acetate from biomass-derived syngas using Moorella thermoacetica. A mobile gas fermentation pilot plant was coupled to a bubbling fluidized-bed gasifier with syngas purification to convert crushed bark-derived syngas. The syngas p
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13

Wang, Jin, Qiaopeng Yao, Xiaoling Jin, and Lei Deng. "The Influence of Co-Firing Coal with Biomass Syngas on the Thermodynamic Parameters of a Boiler." Applied Sciences 13, no. 20 (2023): 11477. http://dx.doi.org/10.3390/app132011477.

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Biomass syngas can be considered as a supplementary fuel to partially substitute coal, which is beneficial to CO2 emission reduction. For the case study, the influences of co-firing typical biomass syngas (gasification from palm, straw, and wood) with coal on the thermodynamic parameters of a 300 MW tangentially fired boiler are evaluated through a thermal calculation based on the principles of mass conservation, heat conservation, and heat transfer. The effects of boiler loads, biomass syngas species, and consumption rates are discussed. The results show that the introduction of biomass synga
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14

Nur, Taufiq Bin, and Justin Kongnardi. "Simulation Analysis of the Pyrolysis Process for the Production of Syngas from Oil Palm Empty Fruit Bunch and Fiber." IOP Conference Series: Earth and Environmental Science 927, no. 1 (2021): 012033. http://dx.doi.org/10.1088/1755-1315/927/1/012033.

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Abstract There have been many efforts to reduce the use of fossil fuels and reduce carbon dioxide emissions by using renewable energy (solar energy, wind energy, water energy, and energy obtained from biomass) as a substitute for fossil fuels. As one of the largest CPO producers globally, Indonesia produces 4 kilograms of dry biomass for every 1 kilogram of oil palm produced. The biomass conversion process into synthetic gas (syngas) can be carried out using the pyrolysis process. The syngas can be used as an alternative fuel for an internal combustion engine. This study aims to simulate the p
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15

Li, Hong Tao, Bing Xi Li, You Ning Xu, Ya Ning Zhang, and Lei Wang. "Theoretical Gasification Index Model for Actual Fuel Gasified with Air and Air/Steam." Advanced Materials Research 516-517 (May 2012): 483–88. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.483.

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Based on mass balance, energy balance and chemical equilibrium, a theoretical gasification index model for actual fuel gasified with air and air/steam was established considering the key reactions of ultimate compositions in the fuel. The model can be used to predict the gasification index, such as the syngas composition, the syngas calorific value, gasification efficiency and syngas yield. The theoretical gasification indexes of some coal and biomass were obtained by this model. The simulated results show that: For the actual fuel, the syngas calorific value for air gasification is lower than
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16

Maryudi, Maryudi, Agus Aktawan, and Shinta Amelia. "Water Scrubber and Zeolite Catalyst for Clean Syngas Production on Biomass Gasification of Bagasse in a Downdraft System." Jurnal Bahan Alam Terbarukan 11, no. 2 (2022): 92–99. http://dx.doi.org/10.15294/jbat.v11i2.39674.

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Biomass gasification is one solution that can overcome Indonesia's energy crisis. Indonesia is an agricultural country that has a lot of sources of biomass. This work was focused on clean syngas production with purifying process through a water scrubber and zeolite catalyst as a filter. The syngas was produced from bagasse gasification as solid waste from a sugar factory. The weight of bagasse feedstock was studied on 1000 g, 1500 g, 2000 g, 2500 g, and 3000 g. The influence of burning time and syngas composition were also studied on syngas production. The experiment result showed that the bur
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17

Kadir, Noor Ain Ab, Risza Rusli, and Noor Azurah Zaina Abidin. "CFD Study on Syngas Dispersion for Biomass Process Industry." Applied Mechanics and Materials 625 (September 2014): 410–13. http://dx.doi.org/10.4028/www.scientific.net/amm.625.410.

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Synthesis gas (syngas) refers to a mixture primarily of hydrogen (H2) and carbon monoxide (CO) which may also contain significant but lower concentrations of methane (CH4) and carbon dioxide (CO2) as well as smaller amounts of impurities such as chlorides, sulphur compounds, and heavier hydrocarbons. Available syngas dispersion study found in literatures mostly focused on pure gas dispersion specifically H2 compared to the syngas mixture. It has been reported in most literatures that available commercial tools tend to give an overestimated results for these types of gas since it is more suitab
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18

Rückel, Anton, Anne Oppelt, Philipp Leuter, Philipp Johne, Sebastian Fendt, and Dirk Weuster-Botz. "Conversion of Syngas from Entrained Flow Gasification of Biogenic Residues with Clostridium carboxidivorans and Clostridium autoethanogenum." Fermentation 8, no. 9 (2022): 465. http://dx.doi.org/10.3390/fermentation8090465.

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Synthesis gas fermentation is a microbial process, which uses anaerobic bacteria to convert CO-rich gases to organic acids and alcohols and thus presents a promising technology for the sustainable production of fuels and platform chemicals from renewable sources. Clostridium carboxidivorans and Clostridium autoethanogenum are two acetogenic bacteria, which have shown their high potential for these processes by their high tolerance toward CO and in the production of industrially relevant products such as ethanol, 1-butanol, 1-hexanol, and 2,3-butanediol. A promising approach is the coupling of
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19

Yang, Li, Wubin Weng, Yanqun Zhu, Yong He, Zhihua Wang, and Zhongshan Li. "Investigation of Hydrogen Content and Dilution Effect on Syngas/Air Premixed Turbulent Flame Using OH Planar Laser-Induced Fluorescence." Processes 9, no. 11 (2021): 1894. http://dx.doi.org/10.3390/pr9111894.

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Syngas produced by gasification, which contains a high hydrogen content, has significant potential. The variation in the hydrogen content and dilution combustion are effective means to improve the steady combustion of syngas and reduce NOx emissions. OH planar laser-induced fluorescence technology (OH-PLIF) was applied in the present investigation of the turbulence of a premixed flame of syngas with varied compositions of H2/CO. The flame front structure and turbulent flame velocities of syngas with varied compositions and turbulent intensities were analyzed and calculated. Results showed that
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20

Ahmed, Usama, Muhammad Arsalan Hussain, Muhammad Bilal, et al. "Utilization of Low-Rank Coals for Producing Syngas to Meet the Future Energy Needs: Technical and Economic Analysis." Sustainability 13, no. 19 (2021): 10724. http://dx.doi.org/10.3390/su131910724.

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Increased energy demand in recent decades has resulted in both an energy crisis and carbon emissions. As a result, the development of cleaner fuels has been under the research spotlight. Low-rank coals are geographically dispersed, abundant, and cheap but are not utilized in conventional processes. Syngas can be produced from coal-using gasification which can be used in various chemical engineering applications. In this study, the process model for syngas production from low-rank coal is developed and the effects of various process parameters on syngas composition are evaluated, followed by a
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21

Ciliberti, Cosetta, Antonino Biundo, Roberto Albergo, et al. "Syngas Derived from Lignocellulosic Biomass Gasification as an Alternative Resource for Innovative Bioprocesses." Processes 8, no. 12 (2020): 1567. http://dx.doi.org/10.3390/pr8121567.

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A hybrid system based on lignocellulosic biomass gasification and syngas fermentation represents a second-generation biorefinery approach that is currently in the development phase. Lignocellulosic biomass can be gasified to produce syngas, which is a gas mixture consisting mainly of H2, CO, and CO2. The major challenge of biomass gasification is the syngas’s final quality. Consequently, the development of effective syngas clean-up technologies has gained increased interest in recent years. Furthermore, the bioconversion of syngas components has been intensively studied using acetogenic bacter
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Mahgoub, Bahaaddein K. M., Suhaimi Hassan, and Shaharin Anwar Sulaiman. "Effect of H2 and CO Content in Syngas on the Performance and Emission of Syngas-Diesel Dual Fuel Engine - A Review." Applied Mechanics and Materials 699 (November 2014): 648–53. http://dx.doi.org/10.4028/www.scientific.net/amm.699.648.

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In this review, a series of research papers on the effects of hydrogen and carbon monoxide content in syngas composition on the performance and exhaust emission of compression ignition diesel engines, were compiled. Generally, the use of syngas in compression ignition (CI) diesel engine leads to reduce power output due to lower heating value when compared to pure liquid diesel mode. Therefore, variation in syngas composition, especially hydrogen and carbon monoxide (Combustible gases), is suggested to know the appropriate syngas composition. Furthermore, the simulated model of syngas will help
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23

Kačur, Ján, Marek Laciak, Milan Durdán, and Patrik Flegner. "Model-Free Control of UCG Based on Continual Optimization of Operating Variables: An Experimental Study." Energies 14, no. 14 (2021): 4323. http://dx.doi.org/10.3390/en14144323.

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The underground coal gasification (UCG) represents an effective coal mining technology, where coal is transformed into syngas underground. Extracted syngas is cleaned and processed for energy production. Various gasification agents can be injected into an underground georeactor, e.g., air, technical oxygen, or water steam, to ensure necessary temperature and produce syngas with the highest possible calorific value. This paper presents an experimental study where dynamic optimization of operating variables maximizes syngas calorific value during gasification. Several experiments performed on an
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24

Radchenko, Yurii, Volodymyr Shevchenko, Serhii Oparin, Olena Gupalo, and Serhii Davydov. "The influence of initial parameters on the process of synthesis gases cooling during plasma-chemical processing of carbon-hydrogen containing raw materials." IOP Conference Series: Earth and Environmental Science 1491, no. 1 (2025): 012067. https://doi.org/10.1088/1755-1315/1491/1/012067.

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Abstract The paper investigates the influence of the productivity of plasma-chemical processing of carbon-hydrogen containing raw material and initial parameters of syngas on the performance of syngas cooler. The syngas cooler consists of a sequentially located radiation section, a preliminary convective section, a steam superheater, a main convective section, an economizer, and an autonomous water cooler. To determine the operating parameters of the syngas cooler, a well-known methodology based on the solution of heat transfer and heat balance equations was used. The main performance indicato
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25

Han, Long, and Guang Yi Deng. "Influences of Clean Syngas Preheating Temperature on IGCC Power Plant Performances." Applied Mechanics and Materials 291-294 (February 2013): 823–26. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.823.

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400 MW IGCC power plants were modeled by using commercial software GT PRO. The high pressure unsaturated water extracted from heat recovery steam generator (HRSG) was used to heat clean syngas to various temperatures. The influences of clean syngas preheating temperature on plant performances were investigated. Results showed that net power output and coal consumption both reduced with the increase of syngas preheating temperature, and coal consumption reduced to a larger extent. Moreover, when syngas preheating temperature increased, the net electric efficiency increased and the net heat rate
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26

Najser, Jan, Ondřej Němček, and Marcel Mikeska. "Characterization of syngas produced from biomass gasification." MATEC Web of Conferences 168 (2018): 08003. http://dx.doi.org/10.1051/matecconf/201816808003.

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This conference paper presents biomass (wood chips from the production process of sawmills) as a renewable energy source to produce electric energy by gasification. Executed measurements from the gasifier with a fixed bed and properties of produced syngas are described in this paper. The goal is to use the produced syngas at co-generation units with piston combustion engines to produce electric energy and heat. The syngas composition is the final result of these measurements. The syngas from gasification contains pollutants which cause technical difficulties during its use in engines with inte
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Mysior, Marek, Maciej Tomaszewski, Paweł Stępień, Jacek A. Koziel, and Andrzej Białowiec. "Valorization of Sewage Sludge via Gasification and Transportation of Compressed Syngas." Processes 7, no. 9 (2019): 556. http://dx.doi.org/10.3390/pr7090556.

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A significant challenge in the utilization of alternative gaseous fuels is to use their energy potential at the desired location, considering economic feasibility and sustainability. A potential solution is a compression, transportation in pressure tanks, and generation of electricity and heat directly at the recipient. In this research, the potential for generating syngas from abundant waste substrates was analyzed. The sewage sludge (SS) was used as an example of a bulky and abundant resource that could be valorized via gasification, compression, and transport to end-users in containers. A m
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28

Lotfi, Samira. "Technologies for Tar Removal from Biomass-Derived Syngas." Petroleum & Petrochemical Engineering Journal 5, no. 3 (2021): 1–35. http://dx.doi.org/10.23880/ppej-16000271.

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The concerns on the significant negative environmental impacts of conventional fuels such as coal, oil and natural gas have fostered the shift of energy consumption towards renewable and environment friendly sources like biomass derived energy. Many technologies have been developed to generate energy from biomass; among them gasification is considered one of the most promising technologies, since and the generated syngas has many practical applications, such as a world-wide sustainable energy production or synthesis of fuels and chemicals. Unavoidable produced impurities during gasification ca
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Kaewpradap, Amornrat, Paweenuch Sarmarnjit, Pisit Korkeatkangwan, Kritchaniphat Sawatnuchart, and Sumrerng Jugjai. "Improvement of Municipal Solid Waste Syngas Premixed Flame with Cellular Structure on a Flat Burner." Energies 16, no. 5 (2023): 2361. http://dx.doi.org/10.3390/en16052361.

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This research was conducted to study the flame instability of syngas derived from raw municipal solid waste (MSW) and its potential as a natural gas (NG) replacement in power generation. MSW syngas is a mixture of various components such as methane (CH4), nitrogen (N2), oxygen (O2), and hydrogen (H2), whereas NG is mainly composed of CH4 (>70%) and CO2 (>10%). The flame characteristics of these two gases are quite different thus a direct replacement of NG with MSW syngas is impossible. Improvements to MSW syngas combustion are needed through the augmentation of the gas with CH4 and H2 ac
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Gorshkov, A. S., I. S. Ermolaev, K. O. Gryaznov, et al. "Experimental Study of the Fischer–Tropsch Synthesis Using Nitrogen-Containing Syngas and Variable Pressure." Kataliz v promyshlennosti 20, no. 5 (2020): 381–90. http://dx.doi.org/10.18412/1816-0387-2020-5-381-390.

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The effect of syngas dilution with nitrogen on the activity, selectivity and capacity of the Fischer–Tropsch reactor with a fixed granulated catalyst bed was studied during the synthesis at the integrated pilot plant for conversion of natural gas to syncrude. Experimental data were obtained at different nitrogen content in syngas: up to 2, 50 and 70 %. The analysis of experimental data shows that the dilution of syngas increases the selectivity to C5+ and decreases the selectivity to methane. The decrease in the reactor capacity observed upon dilution of syngas can be compensated by increasing
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31

Zhang, Yurui, Jiexi Wang, Siqi Lai, and Zhishang Wu. "Prediction of syngas yield from biomass by gasification and related application." Applied and Computational Engineering 44, no. 1 (2024): 138–49. http://dx.doi.org/10.54254/2755-2721/44/20230456.

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This research focuses on the prediction of synthesis gas generation from biomass through gasification and specifically estimates the syngas yield from rice straw from 2018 to 2020. The data of 2020 is visualized in the form of a colored world map A comprehensive literature review is conducted to explore previous studies on syngas yield models and gasification methods and the utilization of machine learning models. A machine learning model is built to calculate the prediction of the syngas total yield generated from biomass gasification. The inputs of the model include temperature, carbon conte
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He, Ailing, Zaifeng Li, Bingdong Gu, and Tingzhou Lei. "Combustion Characterization and Kinetic Analysis of Coupled Combustion of Bio-Syngas and Bituminous Coal." Energies 17, no. 23 (2024): 6205. https://doi.org/10.3390/en17236205.

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The coupled combustion of bio-syngas and bituminous coal is an effective technology to reduce pollutant emissions from coal-fired power plants and improve the utilization rate of biomass energy. However, the effects of bio-syngas blending on bituminous coal combustion characteristics and reaction kinetics remain unclear, restricting the development of bio-syngas and bituminous coal combustion technology. In this study, the experimental studies on the coupled combustion of bio-syngas and bituminous coal under different bio-syngas lower-heating-value-based blending ratio (BLBR) were carried out
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Shih, Hsin Yi, and Jou Rong Hsu. "Computed Extinction Limits and Flame Structures of Opposed-Jet Syngas Diffusion Flames." Applied Mechanics and Materials 110-116 (October 2011): 4899–906. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.4899.

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This paper reports a numerical study on the extinction limits and flame structures of opposed-jet syngas diffusion flames. A narrowband radiation model is coupled to the OPPDIF program, which uses detailed chemical kinetics and thermal and transport properties to enable the study of 1-D counterflow syngas diffusion flames over the entire range of flammable strain rates with flame radiation. The effects of syngas composition, strain rate, ambient pressure, and dilution gases on the flame structures and extinction limits of H2/CO synthetic mixture flames were examined. Results indicate the flame
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Chaijunda, Pongdee, Chaiyaput Kruehong, Mallika Thabuot, Chattichai Waisurasingha, and Prinya Chindaprasirt. "The Effect of Fuel Type on Temperature Profile within Pilot-Scale Downdraft-Gasifier for the LPG Replacement in Electricity Production." Advanced Materials Research 931-932 (May 2014): 1033–37. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.1033.

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This research presents the effect of fuel type on temperature profile within the pyrolysis-, combustion-and reduction-zone of the pilot-scale downdraft gasifier, and the replacement potential of LPG with syngas for electricity production. The experimental results showed that gasification of different fuels have the distinctions of temperature level in each zone. More stable syngas production was obtained either from wood chips (WC) or plastic carrier bag (PCB). In contrast, gasification of aluminum coated plastic bag (ACPB) showed the unsatisfied syngas. From the operation with the dual mode o
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Hussain, Bilal, Hafiz Waqar Azmat, Muhammad Usman Bashir, and Muhammad Umer. "Numerical Analysis of Combustion Dynamics for Single Stage Entrained Flow Gasifier." NUST Journal of Engineering Sciences 13, no. 2 (2020): 52–57. http://dx.doi.org/10.24949/njes.v13i2.634.

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Clean coal technology (CCT) is an environmentally friendly technology for producing syngas. The gasification process is part of CCT for producing the syngas. The numerical simulation of the gasification process is much more economical compared to the experimental study. So, it is beneficial for calculating syngas composition and helping to improve the gasification process. In the present research, the single-stage entrained gasifier is considered for the syngas composition analysis. In the study, the volatile break-up was estimated by the finite volume method. The reaction rates are analyzed u
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Abineno, Jemseng Carles, and Johny Agustinus Koylal. "PROSES PEMBERSIHAN SYNGAS HASIL GASIFIKASI TEMPURUNG KEMIRI MENGGUNAKAN SIKLON." Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 10, no. 1 (2021): 10. http://dx.doi.org/10.23960/jtep-l.v10i1.10-15.

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This study aims to examine the process of cleaning for synthesis gas (syngas) resulted from candlenut shell gasification by using a cyclone. Research was started by design or manufacture a cyclone as a tool that can condense the tar carried in the syngas produced from the gasification process. This tool was tested with by trial and error such that got a tool that can function optimally to condense tar. The syngas cleaning experiment using the cyclone was conducted by four treatments, namely S1 (1 cyclone), S2 (2 cyclones), S3 (3 cyclones), and S4 (4 cyclones). All treatments were repeated 4 (f
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Akhator, Peter, Albert Obanor, and Godwin Sadjere. "Experimental Studies on Synthesis Gas Production from Wood Wastes in a Pilot Downdraft Gasifier." International Journal of Engineering Research in Africa 61 (July 25, 2022): 115–28. http://dx.doi.org/10.4028/p-3t20w5.

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Gasification is a green technology, which produces combustible gas mixture from solid biomass by partial oxidation at elevated temperatures. Synthesis gas, the desired product of such technology, has more uses than the solid biomass. In this study, a locally developed pilot scale fixed-bed downdraft biomass gasifier was examined. Several gasification experiments using mixed wood wastes (generated from the utilisation of various wood species for making furniture) as feedstock was carried out under varied operating conditions to ascertain their effects on the syngas produced in the process. The
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Zhao, Te, Chusheng Chen, and Hong Ye. "CFD Simulation of Syngas Combustion in a Two-Pass Oxygen Transport Membrane Reactor for Fire Tube Boiler Application." Energies 14, no. 21 (2021): 7348. http://dx.doi.org/10.3390/en14217348.

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The oxygen transport membrane reactor technology enables the stable combustion of syngas and reduction in NOx emission. Applying the syngas combustion membrane reactor to fire tube boiler can integrate oxygen separation, syngas combustion, and steam generation in a single apparatus. In this study, a CFD model for oxygen permeation and syngas combustion in a two-pass LSCoF-6428 tubular membrane reactor for fire tube boiler application was developed to study the effects of the inlet temperature, the sweep gas flow rate, and the syngas composition on the reactor performance. It is shown that the
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Fadhil, Siti Sarah Ain, Hasril Hasini, Mohd Nasharuddin Mohd Jaafar, and Nor Fadzilah Othman. "Temperature Distribution Analysis on Syngas Combustion in Microgas Turbine." Applied Mechanics and Materials 819 (January 2016): 282–86. http://dx.doi.org/10.4028/www.scientific.net/amm.819.282.

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Gas turbines are capable to utlize variety of fuel including natural gas, fuel oils and synthetic gas. It has environmental advantages and thus gas turbines are favourable in the power generating industries. The use of synthetic gas or syngas may reduce the CO2 and NOx emissions. The efficiency of syngas is comparable with natural gas. With the current constrain on the environmental issues, the use of syngas in gas turbines has been increasing. Despite its many advantages, the study on the combustion characteristics still remains a challenge, due to its variety fuel components. This paper aims
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Zhang, Zhihai, Patrice Mangin, Sylvain Larose, and Benoit Delcroix. "Simulation of syngas production via pyrolysis-oil gasification – Impacts of operating conditions on syngas properties." BioResources 15, no. 1 (2019): 729–45. http://dx.doi.org/10.15376/biores.15.1.729-745.

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A model for syngas production from pyrolysis oil gasification was developed, validated, and used in this work to predict the effect of operating conditions on syngas properties. The model consists of a process line that includes units for pyrolysis-oil drying, decomposition, combustion, and gasification processes. The model was validated using experimental data from the literature, showing a good agreement between the results and the reference method. Syngas potential applications were assumed, e.g., for direct use in fuel cells and fuel production. Sensitivity analysis was carried out to eval
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Belonogov, Maxim, Vadim Dorokhov, Dmitrii Glushkov, Daria Kuznechenkova, and Daniil Romanov. "Combustion Characteristics of Coal-Water Slurry Droplets in High-Temperature Air with the Addition of Syngas." Energies 16, no. 8 (2023): 3304. http://dx.doi.org/10.3390/en16083304.

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An experimental study of the ignition and combustion processes of coal-water slurry (CWS) droplets based on coal enrichment waste in a high-temperature oxidizer at 650–850 °C with a syngas addition was carried out. The fuel slurry was a mixture of finely dispersed solid combustible particles (coal sludge, 10–100 µm in size) and water. The syngas was a product of biomass pyrolysis and two waste-derived fuels in a laboratory gasifier. Composition of the syngas was controlled by a precision analytical gas analyzer. The feasibility of co-firing CWS with syngas was experimentally established. Under
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Ali, Mujahid, Faisal Mahmood, Christian Magoua Mbeugang, Sunel Kumar, Jiazhen Tang, and Bin Li. "Synthesis of syngas from municipal solid waste in a fluidized bed gasifier." Thermal Science, no. 00 (2024): 83. http://dx.doi.org/10.2298/tsci231109083a.

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In this study, three representative materials, wood, paper, and cloth from municipal solid waste, were studied separately in an atmospheric fluidized bed gasifier. The effects of different feedstock, equivalence ratio, gasification temperature, and calcium carbonate presence on syngas composition, the lower heating value, and carbon conversion efficiency were investigated at different operating temperatures (800-950?C), and the equivalence ratio range from 0.2 and 0.5. As the equivalence ratio increased, the yields of syngas and its lower heating value decreased, whereas the CO2 yield and carb
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Darmansyah, Darmansyah, Anhar Khalid, Muhammad Kasim, and Teguh Suprianto. "Pengaruh Ukuran Serbuk dan Kekerasan Kayu terhadap Kualitas Syngas Dari Pirolisis Biomassa." Jurnal Health Sains 2, no. 4 (2021): 592–600. http://dx.doi.org/10.46799/jsa.v2i4.213.

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Pirolisis-gasifikasi biomassa untuk menghasilkan syngas dengan kandungan hydrogen telah dilakukan dalam penelitian ini. Penelitian ini bertujuan untuk mengetahui pengaruh ukuran serbuk dan kekerasan kayu terhadap kualitas syngas yang dihasilkan ditinjau dari konsentrasi gas hidrogen yang dihasilkan. Serbuk kayu yang digunakan dalam penelitian ini adalah kayu jati, kayu kelapa dan kayu nangka dengan tingkat kekerasan jati > kelapa > nangka. Penelitian dilakukan dengan metode eksperimen yaitu pirolisis dengan menggunakan reaktor jenis fixed bed. Hasil dari penelitian menunjukkan bahwa serb
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Zikra, Asshiyami, Ricky Okta Yohannes, Faiprianda Assyari Rahmatullah, Hari Rionaldo, and Zulfansyah. "Modeling and Simulation of Biomass Gasification with Aspen Plus for Different Types of Local Biomass from Riau Province." CHEESA: Chemical Engineering Research Articles 8, no. 1 (2025): 1–12. https://doi.org/10.25273/cheesa.v8i1.20024.1-12.

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Gasification is a promising technology for electrical energy generation systems in palm oil mills. The syngas components, namely CH4, H2, and CO, produced from gasification can be used as fuel to produce steam, which will be applied in turbine generators to produce electricity. Therefore, this study aimed to simulate and validate a flowsheet model of gasification process for oil palm mill waste using Aspen Plus to achieve an optimal syngas composition, and conduct sensitivity analysis by varying gasification temperature, equivalent ratio, as well as correlating biomass moisture content to syng
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Ganjkhanlou, Yadolah, Evert Boymans, and Berend Vreugdenhil. "Minireview: Intensified Low-Temperature Fischer–Tropsch Reactors for Sustainable Fuel Production." Fuels 6, no. 2 (2025): 24. https://doi.org/10.3390/fuels6020024.

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Low-temperature Fischer–Tropsch (LTFT) synthesis converts syngas to diesel/wax at 200–250 °C. The LTFT reaction has recently received renewed interest, as it can be used for converting syngas from renewable sources (biomass and waste) to high-value fuels and chemicals. Conventional LTFT reactors, such as fixed-bed and slurry reactors, are not entirely suitable for bio-syngas conversion due to their smaller scale compared to fossil fuel-based syngas processes. This review explores advancements in intensifying LTFT reactors suitable for bio-syngas conversion, enabling smaller scale and dynamic o
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Huynh, Quyen, Nam Minh Hoang, Nhung Dinh Tran, Hung Viet Nguyen, and Thuong Ngoc Ngo. "Catalytic effect of domolite in the gasification process productivity and the syngas product value of the updraft gasification technology of rice husk." Science and Technology Development Journal - Natural Sciences 1, no. 6 (2018): 139–48. http://dx.doi.org/10.32508/stdjns.v1i6.624.

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Improving the productivity of gasification process and its syngas product utility value has been carried out by applying the dolomite catalyst method. This research has been tested on pilot scale which is manufactured and installed based on the updraft gasification technology principle. Dolomite catalyst is mixed with rice husk. Research results showed that with 15 % w dolomite catalyst used and gasificated by is air with 3 m3/h flow, the gasification producvity is improved up to 23.45 % comprared with the case of without catalyst (7.76 %). The syngas productivity and its energy value is 67% a
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Lan, Wei Juan, Guan Yi Chen, Chao Wang, and Xin Li Zhu. "Syngas Production from Biomass: A Review." Advanced Materials Research 608-609 (December 2012): 402–5. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.402.

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Biomass is a promising energy resource, due to it is renewable and potentially zero carbon dioxide emissions. Biomass gasification is a major technical option to produce syngas, syngas can be further used as feedstock to product heat and power or bio-gasoline. A lot of research works have been made in biomass-derived syngas production for many years. In this paper, the state-of-the-art biomass-derived syngas production technologies in terms of technical performance are summarized. Many kinds of gasifier types are briefly stated.
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Harahap, Budi Mandra, and Birgitte K. Ahring. "Acetate Production by Moorella thermoacetica via Syngas Fermentation: Effect of Yeast Extract and Syngas Composition." Fermentation 9, no. 9 (2023): 826. http://dx.doi.org/10.3390/fermentation9090826.

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Gasifiers produce a gaseous mixture of CO/CO2/H2, also known as synthesis gas (syngas), containing varying compositions and ratios depending on the lignocellulose material types, gasifier design, and gasification conditions. Different physicochemical and thermodynamic properties of each gas type in the various syngas blends can influence syngas fermentation performance for the production of chemicals such as acetate. This study examined the effect of syngas composition (CO, CO/H2, CO/CO2/H2, and CO/H2) and its corresponding ratio on acetate production using Moorella thermoacetica, a thermophil
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Revocatus, Datius S., Naswibu A. Kasimu, Emanuel X. Ricky, et al. "Thermochemical conversion of underutilized lignocellulosic waste to syngas: Supercritical water gasification for value addition to corncob and sisal waste." Ethiopian Journal of Science and Technology 16, no. 3 (2024): 245–62. http://dx.doi.org/10.4314/ejst.v16i3.5.

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In the context of escalating global energy demands and environmental concerns associated with fossil fuels, this paper reports the conversion of underutilized agricultural residues in Tanzania, namely corncob and sisal waste, into syngas as sustainable biomass alternatives for energy production. Employing supercritical water gasification, the study evaluated the potential of corncob and sisal waste for syngas generation. Proximate analysis showed corncob as more suitable for energy conversion due to its lower moisture content (11.5%) and higher volatile matter (74.9%), compared to the higher m
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Pacheco, Marta, Filomena Pinto, Joana Ortigueira, Carla Silva, Francisco Gírio, and Patrícia Moura. "Lignin Syngas Bioconversion by Butyribacterium methylotrophicum: Advancing towards an Integrated Biorefinery." Energies 14, no. 21 (2021): 7124. http://dx.doi.org/10.3390/en14217124.

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Hybrid bio-thermochemical based technologies have the potential to ensure greater feedstock flexibility for the production of bioenergy and bioproducts. This study focused on the bioconversion of syngas produced from low grade technical lignin to C2-/C4-carboxylic acids by Butyribacterium methylotrophicum. The effects of pH, medium supplementation and the use of crude syngas were analyzed. At pH 6.0, B. methylotrophicum consumed CO, CO2 and H2 simultaneously up to 87 mol% of carbon fixation, and the supplementation of the medium with acetate increased the production of butyrate by 6.3 times. I
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