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Journal articles on the topic 'Lignite Slurry'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Matsyuk, Iryna, Vyacheslav Krivoschokov, Natalia Kushniruk, and Liudmyla Skliar. "Techniques and Technology of Waste Disposal of Lignite Briquettes." Key Engineering Materials 844 (May 2020): 88–96. http://dx.doi.org/10.4028/www.scientific.net/kem.844.88.

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Development of a waste-free technology for lignite slurry upgrading at briquetting factories, which provides for getting cleared water for closed-loop water supply and transportable product for burning or briquetting with sustainable equipment application. Detection and study of peculiarities of lignite coal and slurry of briquetting factories, as well as research on slurry surface properties for substantiating a separation ratio. Determination of the separation ratio of lignite coal slurry taking into account its surface properties to estimate technological efficiency of reagentless flotation

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2

Idrisov, V. I., A. M. Syroezhko, S. V. Dronov, V. M. Strakhov, and M. O. Goncharov. "Lignite-based fuel briquets with petroleum-slurry binder." Coke and Chemistry 56, no. 12 (2013): 461–65. http://dx.doi.org/10.3103/s1068364x13120077.

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3

Aboushabana, Moustafa, Norma R. de Tacconi, and Krishnan Rajeshwar. "Photoelectrolysis of Aqueous Lignite and Carbon Black Slurry Suspensions." Electrochemical and Solid-State Letters 14, no. 10 (2011): E31. http://dx.doi.org/10.1149/1.3607296.

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4

Ren, Yangguang, Jianping Zheng, Xiao Yang, Zhiqiang Xu, and Zhihua Cao. "Improvement on slurry ability of lignite under microwave irradiation." Fuel 191 (March 2017): 230–38. http://dx.doi.org/10.1016/j.fuel.2016.11.047.

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5

Feng, Ping, Jie Li, Jinyu Wang, Huan Wang, and Zhiqiang Xu. "Effect of Bio-Oil Species on Rheological Behaviors and Gasification Characteristics of Coal Bio-Oil Slurry Fuels." Processes 8, no. 9 (2020): 1045. http://dx.doi.org/10.3390/pr8091045.

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Bio-oil is a promising fuel as one of the main products from biomass fast pyrolysis for improving energy density and reducing transportation cost, but high acidity and low calorific value limit its direct application. It can be used to prepare coal bio-oil slurry as partial green fuels for potential feeds for synthesis gas production via gasification with the advantages over traditional coal-water slurries of calorific values and being additives-free. In the present work, three bio-oils were blended with lignite to prepare slurry fuels for the investigation of the effect of bio-oil species on

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6

Sun, Meijie, Jianping Zheng, and Xiangyang Liu. "Effect of Hydrothermal Dehydration on the Slurry Ability of Lignite." ACS Omega 6, no. 18 (2021): 12027–35. http://dx.doi.org/10.1021/acsomega.1c00639.

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7

Zhou, Fan, Jun Cheng, Jianzhong Liu, Zhihua Wang, Junhu Zhou, and Kefa Cen. "ICOPE-15-C032 Lignite upgrading by microwave irradiation to improve coal water slurry properties for gasification." Proceedings of the International Conference on Power Engineering (ICOPE) 2015.12 (2015): _ICOPE—15——_ICOPE—15—. http://dx.doi.org/10.1299/jsmeicope.2015.12._icope-15-_129.

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8

Korzh, Raisa, and Valerii Bortyshevskyi. "Primary reactions of lignite-water slurry gasification under the supercritical conditions." Journal of Supercritical Fluids 117 (November 2016): 64–71. http://dx.doi.org/10.1016/j.supflu.2016.05.013.

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9

RASHID HASAN, A., and DORAB N. BARIA. "Pressure Drop and Flow Rate Measurement in Lignite-Water Slurry Flow." Energy Sources 9, no. 1 (1987): 17–41. http://dx.doi.org/10.1080/00908318708908679.

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10

YAVUZ, R., and S. KÜÇÜKBAYRAK. "Effect of Particle Size Distribution on Rheology of Lignite-Water Slurry." Energy Sources 20, no. 9 (1998): 787–94. http://dx.doi.org/10.1080/00908319808970098.

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11

Oelert, H. H., and R. Bloss. "HYDROLIQUEFACTION OF TEXAS LIGNITE IN COAL- AND PETROLEUM-DERIVED SLURRY OILS." Liquid Fuels Technology 3, no. 2 (1985): 251–76. http://dx.doi.org/10.1080/07377268508915382.

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12

Chen, R., M. Wilson, Y. K. Leong, P. Bryant, H. Yang, and D. K. Zhang. "Preparation and rheology of biochar, lignite char and coal slurry fuels." Fuel 90, no. 4 (2011): 1689–95. http://dx.doi.org/10.1016/j.fuel.2010.10.041.

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13

Chai, Wencui, Wenjuan Wang, Yanfang Huang, Guihong Han, Yijun Cao, and Jiongtian Liu. "Further exploring on aqueous chemistry of micron-sized lignite particles in lignite–water slurry: Effects of humics adsorption." Fuel Processing Technology 176 (July 2018): 190–96. http://dx.doi.org/10.1016/j.fuproc.2018.03.028.

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14

Huang, Yanfang, Wenjuan Wang, Longjie Xing, Guihong Han, Jiongtian Liu, and Guixia Fan. "Exploring on aqueous chemistry of micron-sized lignite particles in lignite–water slurry: Effects of pH on humics dissolution." Fuel 181 (October 2016): 94–101. http://dx.doi.org/10.1016/j.fuel.2016.04.117.

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15

Li, Qiang, Dingzheng Yang, Qingxia Liu, and Jiansheng Zhang. "Effects of hydrothermal dewatering of lignite on rheology of coal water slurry." Canadian Journal of Chemical Engineering 97, no. 1 (2018): 323–29. http://dx.doi.org/10.1002/cjce.23193.

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16

Sun, Ye, Xingjun Wang, Zhenghua Dai, Guangsuo Yu, and Fuchen Wang. "Physicochemical Properties and Slurry Ability of Lignite Upgraded by a Solvent-Extraction Approach." Energy Technology 3, no. 9 (2015): 968–75. http://dx.doi.org/10.1002/ente.201500108.

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17

Gong, Xuzhong, Mingyong Wang, Zhi Wang, and ZhanCheng Guo. "Roles of inherent mineral matters for lignite water slurry electrolysis in H2SO4 system." Energy Conversion and Management 75 (November 2013): 431–37. http://dx.doi.org/10.1016/j.enconman.2013.07.004.

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18

Tu, Yanan, Ping Feng, Yangguang Ren, Zhihua Cao, Rui Wang, and Zhiqiang Xu. "Adsorption of ammonia nitrogen on lignite and its influence on coal water slurry preparation." Fuel 238 (February 2019): 34–43. http://dx.doi.org/10.1016/j.fuel.2018.10.085.

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19

Wu, Jun-Hong, Jian-Zhong Liu, Yu-Jie Yu, Rui-Kun Wang, Jun-Hu Zhou, and Ke-Fa Cen. "Improving slurryability, rheology, and stability of slurry fuel from blending petroleum coke with lignite." Petroleum Science 12, no. 1 (2015): 157–69. http://dx.doi.org/10.1007/s12182-014-0008-3.

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20

Korzh, Raisa, and Valerii Bortyshevskyi. "Primary reactions of lignite-water slurry gasification under the supercritical pressure in the electric field." Journal of Supercritical Fluids 127 (September 2017): 166–75. http://dx.doi.org/10.1016/j.supflu.2017.04.004.

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21

Wei, Yanfang, and Jie Wang. "Hydrothermal treatment of the blend of lignite and rapid hydrogasification char for preparing slurry fuels." Fuel Processing Technology 161 (June 2017): 311–20. http://dx.doi.org/10.1016/j.fuproc.2017.01.003.

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22

Fiszer, Janusz. "MODEL RESEARCH ON THE EFFECTIVENESS OF TECHNICAL METHODS OF LIMITING THE EXPANSION OF THE DEPRESSION CONE CAUSED BY DEWATERING OF THE PLANNED GUBIN OPEN-PIT BROWN COAL MINE." Biuletyn Państwowego Instytutu Geologicznego 471 (October 1, 2018): 23–32. http://dx.doi.org/10.5604/01.3001.0012.4737.

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Due to the planned exploitation of the Gubin lignite deposit by opencast method, a numerical hydrogeological model was built. The main goal of the model was to forecast the development of the cone of depression caused by the future mine dewatering. Due to the location of the mine near the Nysa Łużycka River, a drainage system will be developed. The main task of this system is to eliminate the development of the cone of depression in the upper Quaternary aquifer in Germany, as well as to protect the Natura 2000 areas located in the immediate vicinity of the mine against harmful effects on groun

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23

Potty, V. P. "Use of lignite slurry as inoculating medium for vesicular arbuscular mycorrhiza in chinese potato (Coleus parviflorus)." Plant and Soil 125, no. 1 (1990): 146–48. http://dx.doi.org/10.1007/bf00010755.

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24

Unar, Imran Nazir, Ghulamullah Maitlo, Suhail Ahmed Soomro, et al. "Impacts of slurry and dry forms of low-rank coal (lignite) on quality of syngas produced." Clean Technologies and Environmental Policy 22, no. 3 (2020): 613–25. http://dx.doi.org/10.1007/s10098-019-01804-y.

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25

Masoomi, Ida, Barna Heidel, Marc Oliver Schmid, and Günter Scheffknecht. "Effect of additives on mercury partitioning in wet-limestone flue-gas desulfurization." Clean Energy 4, no. 2 (2020): 132–41. http://dx.doi.org/10.1093/ce/zkaa005.

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Abstract The wet-flue-gas desulfurization (FGD) process plays an important role in removing water-soluble flue-gas components such as sulphur dioxide (SO2) and oxidized mercury compounds. Under the reducing environment of the FGD, there is the possibility of re-emission of the already absorbed mercury (Hg) to the gas phase, which may be diminished by the utilization of specific additives. In this study, the effect of two different additives on Hg re-emission from the aqueous phase and Hg partitioning in gypsum and filtrate of a lab-scale wet-limestone FGD is investigated. Furthermore, the beha

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26

Mandrov, G. A., and V. I. Klishin. "Using the electrochemical-oxidation products of bituminous lignite tar in the flotational enrichment of high-ash coal slurry." Coke and Chemistry 59, no. 11 (2016): 417–19. http://dx.doi.org/10.3103/s1068364x16110065.

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27

Katsika, E., A. Moutsatsou, V. Karayannis, M. Volioti, and D. Tsoukleris. "Synthesis and characterization of lignite fly ash ceramic substrates coated with TiO2 slurry, and evaluation in environmental applications." Journal of the Australian Ceramic Society 54, no. 4 (2018): 711–19. http://dx.doi.org/10.1007/s41779-018-0201-8.

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28

Katsika, Eleni, Maria Volioti, Vayos G. Karayannis, and Angeliki Moutsatsou. "Transformation of Industrial By-Products into Composite Photocatalytic Materials." Periodica Polytechnica Chemical Engineering 65, no. 1 (2019): 12–20. http://dx.doi.org/10.3311/ppch.14797.

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The transformation of both calcareous and siliceous Greek power station by-products (lignite ashes) into novel composite materials with photocatalytic properties for environmental application was investigated. Particularly, a comparison between the development of coated ceramic substrates and the modification of ash surfaces is attempted. Specifically, a) the sintering process (1000 °C, 2 h) of both fly and bottom ash (either calcareous or siliceous) for their conversion into compacted ceramic substrates coated with TiO2 slurry and then further thermally treated (500 °C, 1 h) to acquire TiO2 f

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29

Chen, Xing, Chunyu Wang, Ziyu Wang, Hui Zhao, and Haifeng Liu. "Preparation of high concentration coal water slurry of lignite based on surface modification using the second fluid and the second particle." Fuel 242 (April 2019): 788–93. http://dx.doi.org/10.1016/j.fuel.2019.01.007.

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30

Leir�s, M. C., F. Gil-Sotres, M. C. Trasar-Cepeda, A. Sa�, and S. Seoane. "Soil recovery at the Meirama opencast lignite mine in northwest Spain: A comparison of the effectiveness of cattle slurry and inorganic fertilizer." Water, Air, and Soil Pollution 91, no. 1-2 (1996): 109–24. http://dx.doi.org/10.1007/bf00280927.

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31

Chen, Dandan, Qing Yang, Xuguang Jiang, et al. "Comparison of Combustion and Emission Characteristics of an Indonesian Lignite Washery Tailing Slurry with a Bituminous Coal in a Bench-Scale Bubbling/Circulating Fluidized Bed Combustor." Energy & Fuels 30, no. 12 (2016): 10835–46. http://dx.doi.org/10.1021/acs.energyfuels.6b01772.

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32

Smith, Aidan Mark, Ugochinyere Ekpo, and Andrew Barry Ross. "The Influence of pH on the Combustion Properties of Bio-Coal Following Hydrothermal Treatment of Swine Manure." Energies 13, no. 2 (2020): 331. http://dx.doi.org/10.3390/en13020331.

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The application of excessive amounts of manure to soil prompted interest in using alternative approaches for treating slurry. One promising technology is hydrothermal carbonisation (HTC) which can recover nutrients such as phosphorus and nitrogen while simultaneously making a solid fuel. Processing manure under acidic conditions can facilitate nutrient recovery; however, very few studies considered the implications of operating at low pH on the combustion properties of the resulting bio-coal. In this work, swine manure was hydrothermally treated at temperatures ranging from 120 to 250 °C in ei

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33

Nasiri, Anahita, Jim Wearing, and Marc A. Dubé. "Using Lignin to Modify Starch-Based Adhesive Performance." ChemEngineering 4, no. 1 (2020): 3. http://dx.doi.org/10.3390/chemengineering4010003.

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Unmodified kraft lignin was used to create a starch-based adhesive via the Stein Hall process. Lignin up to 35 wt% was used in several formulations. Lignin was incorporated in both the carrier and slurry portions of the formulations and the effect on adhesive strength and water resistance was studied. The addition of lignin resulted in a significant increase in adhesive strength when the lignin was added solely to the slurry portion. When lignin was added solely to the carrier portion, the adhesive strength decreased. Other formulations, where lignin was present in both the carrier and slurry

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34

Pang, Yu Xia, Fei Gao, Hong Ming Lou, and Yong Hong Deng. "Application Performance of Lignin-Modified Amino-Sulfonic Acid-Based Dispersant on the Ceramic Slurry." Advanced Materials Research 781-784 (September 2013): 952–56. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.952.

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Lignin-modified amino-sulfonic acid-based dispersant LMA was synthesized by using soda lignin to substitute part of phenol. Effect of LMA on ceramic slurry performance was studied and compared with inorganic salt dispersant. The addition of LMA endows ceramic slurry with lower viscosity, better fluidity and stability. Particle size of ceramic slurry blended with LMA is clearly decreased and grinding efficiency improves. LMA can enhance particle electro-negativity by complexing high valence cations and polymeric anion-adsorbing on ceramic particles surface by hydrogen bonds. The dispersive effe

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35

Ye, Chang, Cheng Xing Shi, Qi Cheng Liu, and Qing Xia. "Study of Adaptability of the Compound of Sulfonate Acid Water Reducing Agent with Ceramic Slurry Blank." Advanced Materials Research 650 (January 2013): 285–91. http://dx.doi.org/10.4028/www.scientific.net/amr.650.285.

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In this study, we investigate the effect of four types of water reducing agen on fluidity, suspensibility, thixotropy and the particle size of ceramic slurry and analyze the corresponding mechanism. Those water reducing agen include Lignin sulfonate water reducing agent, Sodium metasilicate, naphthalene sulfonate formaldehyde condensate, and the inorganic compound reducing agent. Experiment results shows that the relative molecular mass, the structure of water reducer, the content, and the moisture content of ceramic blank particle can play an important role in the adaptability of both water r

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36

Raschip, Irina Elena, Cornelia Vasile, Diana Ciolacu, and Georgeta Cazacu. "Semi-interpenetrating Polymer Networks Containing Polysaccharides. I Xanthan/Lignin Networks." High Performance Polymers 19, no. 5-6 (2007): 603–20. http://dx.doi.org/10.1177/0954008307081202.

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The polysaccharides are important materials in food, pharmaceutical, cosmetic and related biomedical applications. Xanthan gum is a microbial polysaccharide of great commercial significance. It is well known as one of the best thickening polymers due to its high intrinsic stiffness related to the helical conformation stabilized in the presence of excess salt. It is used in a wide variety of foods for a number of important reasons, including emulsion stabilization, temperature stability, compatibility with food ingredients, and its pseudoplastic rheological properties. Due to its properties in

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37

Gnanambal, Venkatachalam Sundaresan, and Krishnaswamy Swaminathan. "Biogas production from renewable lignocellulosic biomass." International Journal of Environment 4, no. 2 (2015): 341–47. http://dx.doi.org/10.3126/ije.v4i2.12662.

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Effect of raw and biologically treated lignocellulosic biomass using cow dung slurry for biogas production is reported. Biomass is an energy source. Water containing biomass such as sewage sludge, cow dung slurry and lignocellulosic waste, has several important advantages and one of the key feature is renewability. Cow dung slurry has the potential to produce large amounts of biogas. Four categories of bacteria viz., hydrolytic, fermentative, fermentative acidogenic and acidogenic-methanogenic bacteria are involved in the production of biogas. The different characteristics of the cow dung slur

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38

Wiśniewska-Kadżajan, Beata, and Grzegorz Stefaniak. "Effects of Slurry Applied with Soil Conditioners and Mineral Fertilizers on Fiber Fraction Content in Festulolium braunii (K. Richt.) A. Camus." Applied Sciences 10, no. 18 (2020): 6554. http://dx.doi.org/10.3390/app10186554.

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This paper deals with the effects of slurry, soil conditioners, and mineral fertilizers on Festulolium braunii fiber content. The field studies with three replications and a completely randomized design lasted two years (2016–2017). The effects of slurry applied on its own or in combination with mineral fertilizers and with two products improving soil properties was tested on the Sulino cultivar of F. braunii, a forage grass species. The results of the studies demonstrated that crude fiber content of F. braunii significantly varied across harvests. The treatment also significantly affected neu

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39

Kaur, Ajit, and Urmila Gupta Phutela. "Optimization of cultural conditions for submerged state fermentation of di-gested biogas slurry for production of lignocellulolytic enzymes using Phanaerochaete chrysosporium MTCC 787." Journal of Applied and Natural Science 9, no. 3 (2017): 1729–34. http://dx.doi.org/10.31018/jans.v9i3.1429.

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Growing environmental concerns and increasing demands from end-use sectors have increased the glob-al market for microbial products. Optimizations of production parameters hold great importance for the industry. The present study was aimed at optimization of submerged state fermentation conditions for production of lignocelluloly-tic enzymes from digested biogas slurry by Phanaerochaete chrysosporium MTCC 787. Enzyme activities for differ-ent enzymes i.e. endoglucanase, exoglucanase, β-glucosidase; xylanase and mannanase; laccase, lignin peroxidase and manganese peroxidise, using P. chrysospor

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40

Nielsen, Kerstin, Christina-Luise Roß, Marieke Hoffmann, Andreas Muskolus, Frank Ellmer, and Timo Kautz. "The Chemical Composition of Biogas Digestates Determines Their Effect on Soil Microbial Activity." Agriculture 10, no. 6 (2020): 244. http://dx.doi.org/10.3390/agriculture10060244.

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Digestates are commonly used as organic inputs in agriculture. This study aimed to answer four questions: (1) What are the immediate and longer-term impacts of digestates on soil microbial activity?; (2) How much of the digestates’ carbon is mineralized within the first months? (3) How do the nitrogen, lignin, cellulose, and hemicellulose contents of digestates influence microbial activity and carbon mineralization? (4) How does the soil type influence mineralization? To investigate this, dehydrogenase activity (DHA) was measured in a field trial and in laboratory experiments with five digesta

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41

Bogdanov, A. V., K. V. Fedotov, A. S. Shatrova, and G. G. Popova. "The Use of Frozen Colloidal Sediments of Sludge-Lignin of OJSC "Baikal Pulp and Paper Mill" as Soil." Ecology and Industry of Russia 24, no. 1 (2020): 24–29. http://dx.doi.org/10.18412/1816-0395-2020-1-24-29.

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A series of industrial experimental tests on the freeze treatment of colloidal sludge lignin precipitates was carried out under natural conditions. Changes in the physical and chemical properties of the precipitates were studied. It is established that three fractions are formed following the freeze treatment of colloidal sludge lignin precipitates, including demineralized water (up to 25 %), mineralized water (up to 15 %) and a restructured colloidal precipitate (up to 60 %). The total volume of the precipitate is shown to decrease to 40 %. Freezing precipitation of colloidal lignin slurry of

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42

ANDERSSON, NICLAS, CAROLINE WILKE, TOM BIAZZO, RICK VAN FLEET, and ULF GERMGÅRD. "A new sensor and a novel control concept for optimized fiber line operation." October 2014 13, no. 10 (2014): 39–45. http://dx.doi.org/10.32964/tj13.10.39.

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Kraft and sulfite pulp mills use several consecutive process stages for pulp production. However, usually only one key pulp parameter is used for process control and that is the lignin content in the fibers, typically expressed as the kappa number. Even so, to improve process efficiency, more variables need to be monitored. To do that, a new sensor was developed, the dissolved lignin transmitter (DLT), along with a new control concept. The DLT measures the dissolved lignin content in the pulp slurry using a unique principle based on optical measurements. The device can measure the dissolved li

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43

Antonopoulou, Georgia, Dimitrios Vayenas, and Gerasimos Lyberatos. "Biogas Production from Physicochemically Pretreated Grass Lawn Waste: Comparison of Different Process Schemes." Molecules 25, no. 2 (2020): 296. http://dx.doi.org/10.3390/molecules25020296.

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Various pretreatment methods, such as thermal, alkaline and acid, were applied on grass lawn (GL) waste and the effect of each pretreatment method on the Biochemical Methane Potential was evaluated for two options, namely using the whole slurry resulting from pretreatment or the separate solid and liquid fractions obtained. In addition, the effect of each pretreatment on carbohydrate solubilization and lignocellulossic content fractionation (to cellulose, hemicellulose, lignin) was also evaluated. The experimental results showed that the methane yield was enhanced with alkaline pretreatment an

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44

Han, Ying, Xin Song, Xiao Ming Xia, Hai Ming Li, and Guang Wei Sun. "Study on Pre-Hydrolysis Technology of Reed Artificial Fiber Pulp." Advanced Materials Research 821-822 (September 2013): 119–23. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.119.

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The main materials of artificial fiber pulp are natural fiber from wood and linters etc. However, it will be more and more difficult to make this pulp in China because of the scarcity of forest resource and cotton field. Reed is widely distributed with high yield in china. Therefore, exploitation and utilization of reed in artificial fiber pulping have an important social significance. The artificial pulp made from reed was studied in this paper. The pulping method adopted pre-hydrolysis followed by Kraft cooking. The results showed that the great influence factors of pre-hydrolysis were the h

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45

Daud, Muhammad, Wasrin Safii, and Khaswar Syamsu. "BIOKONVERSI BAHAN BERLIGNOSELULOSA MENJADI BIOETANOL MENGGUNAKAN Aspergillus niger DAN Saccharomyces cereviciae." PERENNIAL 8, no. 1 (2012): 43. http://dx.doi.org/10.24259/perennial.v8i1.214.

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This study aims to determine the feseability of bioethanol production from lignocellulosic material by using simulataneous saccharification and fermentation (SSF) processes with Aspergillus niger dan Saccharomyces cereviciae. Three different lignocellulosic materials namely sengon wood (Paraserianthes falcataria), gmelina wood (Gmelina arborea), pinus wood and (Pinus merkusii) were pretreated using kraft process to remove lignin content. Then, pulp was treated by using SSF processes. SSF runs were performed in 500 ml fermentors using a total slurry 200 ml. The substrate and nutrient media were

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46

Kolář, L., S. Kužel, J. Peterka, P. Štindl, and V. Plát. "Agrochemical value of organic matter of fermenter wastes in biogas production." Plant, Soil and Environment 54, No. 8 (2008): 321–28. http://dx.doi.org/10.17221/412-pse.

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We performed 28-day mesophilic fermentation of a mixture of pig slurry and primary (raw) sludge from the sedimentation stage of a wastewater treatment plant at a 1:1 ratio. The components and the original and fermented mixture of slurry and sludge were subjected to acid hydrolysis. Dry matter of the solid phase of both components and both mixtures was incubated with sandy-loamy Cambisol at a weight ratio 3:1 at 25°C for 20 weeks; in 14-day intervals lipids, crude protein, hemicelluloses, cellulose, lignin, total nitrogen and hot-water-insoluble solids were determined. Changes in ion-exchange a

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47

Bob Soile and Moses Akiibinu,Felix Oyeyiola. "Thermochemical Liquefaction Kraft Lignin As A Waste Management Process." JOURNAL OF ADVANCES IN CHEMISTRY 17 (June 9, 2020): 64–72. http://dx.doi.org/10.24297/jac.v17i.8715.

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Waste management is the collection, transportation, processing or disposal, monitoring, and managing of waste materials. It tries to reduce the harmful environmental impact of each through different methods, which include but not limited to landfill, incineration, recycling, biological processing, and reduction methods. Generation, utilization and disposal of waste is increasingly becoming a significant problem in many cities of the world, with an exploding world population estimated to have a global doubling time now less than twenty years. This research focuses on energy recovery as a viable

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48

Hong, Nanlong, Wei Yu, Yuyuan Xue, et al. "A novel and highly efficient polymerization of sulfomethylated alkaline lignins via alkyl chain cross-linking method." Holzforschung 70, no. 4 (2016): 297–304. http://dx.doi.org/10.1515/hf-2015-0043.

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Abstract A new family of water-soluble lignosulfonate polymers with ultrahigh molecular weight (Mw) was developed based on alkali lignin (AL) as starting material in a one-pot reaction in two steps: sulfomethylation of AL as raw material led to AL-S and this material was subsequently cross-linked via alkylation with 1,6-dibromohexane (alkAL-S). Gel permeation chromatography showed a significant increase of Mw from 5200 Da of AL-S to 201 000 Da of alkAL-S with high degree of alkylation. Fourier transform infrared spectroscopy (FTIR) and proton nuclear magnetic resonance spectroscopy and functio

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Ibrahim, Shariff, Siti Noor Inani Binti Baharuddin, Borhanuddin Ariffin, Megat Ahmad Kamal Megat Hanafiah, and Nesamalar Kantasamy. "Cogon Grass for Oil Sorption: Characterization and Sorption Studies." Key Engineering Materials 775 (August 2018): 359–64. http://dx.doi.org/10.4028/www.scientific.net/kem.775.359.

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Cogon grass (Imperata cylindrica), an invasive, unwanted grass was used and evaluated for its applicability for the sorption of engine oil. Other than dried and ground for smaller size, no notable treatment was performed on the cogon grass. The physical and chemical properties of cogon grass were characterized by ash content, bulk density, pH slurry, and Field Emission Scanning Electron Microscopy (FESEM). The oil sorption was performed in a batch adsorption system. The effects of contact time, dosage of adsorbent and oil retention were investigated. The bulk density and ash content of the pre

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Sunarno, Silvia R.Y, and Syaiful Bahri. "PENGARUH TEMPERATUR DAN KONSENTRASI KATALIS PADA CRACKING CANGKANG SAWIT MENJADI CRUDE BIO-FUEL." Jurnal Riset Kimia 5, no. 1 (2015): 73. http://dx.doi.org/10.25077/jrk.v5i1.185.

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ABSTRACT One of solid waste that produced by palm industry is palm oil shell. This waste abundant in Riau about 700.5 ton/day. The shell compositions are cellulosa, hemicellulosa, and lignine. That compounds can be cracked into crude biofuel in slurry reactor with NiMo/ZSM-5 catalyst. The objective of research to study the influence of cracking temperature (300, 310, 320, 330 0C) and concentration of catalyst (0.5; 1.5; 2.5; 3.5%) to yield of crude biofuel and to determine physical and chemical properties. Cracking process used 50 gram palm oil shell size -40+60 mesh, 500 mL silinap and rotati

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