Academic literature on the topic 'Mono ethanol amine'

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Journal articles on the topic "Mono ethanol amine"

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Bommel, Andrew van, Andrew Glennie, Danielle Chisholm, and Rama M. Palepu. "Dynamics of percolation and energetics in the clustering of water/AOT/oil microemulsions in the presence of ethanol amines." Canadian Journal of Chemistry 84, no. 3 (March 1, 2006): 412–20. http://dx.doi.org/10.1139/v06-011.

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Temperature-induced percolation in water/AOT/oil microemulsions in the presence of mono-, di-, and tri-ethanol amines have been studied using conductometric measurements. The percolation temperature of water/AOT/oil microemulsions depends on the nature of the alkanol amine added. Mono- and di-ethanol amines hinder the percolation process, while triethanol amine promotes the process. Percolation studies were also conducted with varying ω = [H2O]/[AOT] values and varying chain lengths of continuous oil phase (C6–C10). The results indicate that increases in both ω and the chain length of the oil decrease the percolation temperature. The microemulsion systems have been analyzed in terms of percolation temperature, scaling equation parameters, and activation energies. The energetic parameters of the clustering process have also been determined employing the phase–separation model. The influence of alkanol amines on the percolation phenomenon has been rationalized in terms of the changes in fluidity of the interfacial layer, the viscosity of the water micropool, and the attractive interactions of the microemulsion droplets. The influence of the alkanol amine additives on the stated parameters was discussed in view of the individual effects of the alcohol and amine moieties on the properties of water/AOT/oil microemulsions.Key words: microemulsion, percolation, conductometry, alkanol amine, surfactant.
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Mushtaq, Asim, Hilmi Mukhtar, and Azmi Muhammad Shariff. "Gas Permeability Study of Amine-Polymer Blend Membranes to Separate Carbondioxide from Natural Gas." Applied Mechanics and Materials 625 (September 2014): 704–8. http://dx.doi.org/10.4028/www.scientific.net/amm.625.704.

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The confinement and storage of carbon dioxide has been acknowledged as a prospective solution towards the greenhouse gas effect which in turn cause climate change. Proficient separation technologies are required for removal of carbon dioxide from natural gas streams to allow this solution to be extensively feasible. An emerging technology is the membrane gas separation, which is more dense, energy efficient and possibly more economical than older technologies, such as solvent absorption. Amine has a natural affinity for both carbon dioxide and hydrogen sulphide, allowing it to be a very effective removal process. In this context blending of glassy polymer that is polysulfone and amines, which are diethanol amine, methyl diethanol amine, mono ethanol amine in dimethyl acetamide solvent, flat sheet membranes were developed with desirable properties. Gas permeability study of PSU with amines, blend membranes were evaluated using pure gas CO2and CH4at different feed pressures.
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Chong, Nyuk-Min. "BIOLOGICAL TREATABILITY OF AMINE LADEN REFINERY WASTEWATER." Water Science and Technology 30, no. 3 (August 1, 1994): 21–28. http://dx.doi.org/10.2166/wst.1994.0054.

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Mono- and Di- hydroxyl amines are used in the desulfuration processes for refined petroleum products. The refinery wastewater treatment plant may be shocked by amine laden wastewater periodically, bringing operation difficulties to the biological treatment units. Data on the treatability, shock load behaviour and on long term system stability of biological treatment of amines are therefore required. Shake-flask test results showed that pure diethanol amine and diisopropanol amines have characteristics of persistent compounds. Each of the two compounds has a prolonged lag time when first inoculated with indigenous activated sludge. Acclimated activated sludge in a continuous flow reactor treated a feed of ethanol amine with a 93 percent COD removal and a 98 percent nitrification, but the system was unstable because amine caused a bulking sludge. By physical retention of the activated sludge, 550 mg/l influent COD of amines was treated to m1 average 50 mg/l effluent COD. Sludge yield was approximately 0.26 mg MLSS per mg COD. The activated sludge system withstood a chm1ge of feed to a real refinery wastewater laden with the; amine. A mean cell residence time above five (5) days should be maintained for safe treatment of; amine.
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Hilyati, Hilyati, Wuryaningsih Wuryaningsih, M. Nasir, Tasrif Tasrif, and T. Beuna. "THE DETERMINATION OF OPTIMUM CONDITION FOR THE SYNTHESIS OF ALKYL MONOETHANOLAMIDE FROM PALM KERNEL OIL." Indonesian Journal of Chemistry 4, no. 2 (June 9, 2010): 88–93. http://dx.doi.org/10.22146/ijc.21859.

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Synthesis of alkyl monoethanolamide from palm kernel oil was done by two steps reaction that are esterification and amidation. The esterification, that is the reaction between palm kernel oil and methanol with mole ratio of 1:3 using acid catalyst (H2SO4) 4 % at temperature 60 OC for two hours, results in methyl ester palm kernel oil. The methyl ester product was produced by amidation reaction on any variation of time, temperature, catalyst, catalyst concentration and ratio of the reactan. The best result of the synthesis (amide conversion of 98.15 %) was obtained at temperature of 160 OC for 6 hours with mole ratio of methyl ester palm kernel oil to ethanol amine (ratio of the reactan) 1:1 using KOH catalyst 0.5 % and H2SO4 catalyst 0.5 %. Keywords: alkyl mono ethanol amide, surfactant, palm kernel oil, esterification, methyl ester, emulsifier
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Kianfar, Ehsan, Vahid Pirouzfar, and Hossein Sakhaeinia. "An experimental study on absorption/stripping CO 2 using mono-ethanol amine hollow fiber membrane contactor." Journal of the Taiwan Institute of Chemical Engineers 80 (November 2017): 954–62. http://dx.doi.org/10.1016/j.jtice.2017.08.017.

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Lee, Jonathan, Toluwanimi Kolawole, and Pierrot Attidekou. "Carbon Capture from a Simulated Flue Gas Using a Rotating Packed Bed Adsorber and Mono Ethanol Amine (MEA)." Energy Procedia 114 (July 2017): 1834–40. http://dx.doi.org/10.1016/j.egypro.2017.03.1312.

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Fekri, Leila Z. "NiFe2O4@SiO2 @amino Glucose Magnetic Nanoparticle under Solvent-free Condition: A New, mild, Simple and Effective Avenue for the Synthesis of Quinazolinone, Imidazo[1,2-a]Pyrimidinone and Novel Derivatives of Amides." Current Organic Synthesis 17, no. 4 (July 27, 2020): 304–12. http://dx.doi.org/10.2174/1570179417666200409151330.

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Background: Imidazo[1,2-a]pyrimidinone, quinazolinone and amide derivatives have attracted a lot of interest because of their broad scope of biological and pharmacological activities. There are a lot of methods reported in the literature for their synthesis. Therefore, we became interested in developing a convenient synthetic method for the preparation of imidazoquinazolinone and amide derivatives. Objective: NiFe2O4@SiO2 @glucose amine were synthesized, characterized and have been used for the green, effective and mild multicomponent synthesis of quinazolinones, benzoimidazo[1,2-a]pyrimidinones and amides under solvent-free conditions in short reaction times and excellent yields. To expand of the scope of this avenue, multicomponent synthesis of mono and bis novel amides was tested for the first time. All of the products were characterized by mp, FT-IR, NMR and elemental analysis. Methods: Aldehyde (1mmol), 2-amino benzimidazole (1 mmol), dimedone (1mmol) or indane-1,3-dione (1 mmol) for the synthesis of quinazoline or imidazopyrimidinones and arene (1mmol), anhydride (1mmol), 2- aminobenzimidazole (1mmol) for the synthesis of amides in the nanocatalyst NiFe2O4@SiO2@glucose amine (0.15mol%: 0.05g) were stirred by a magnet for the required reaction time. After completion of the reaction, as indicated by TLC, the products were collected and recrystallized from ethanol if necessary. Results: We present a novel avenue for the synthesis of benzimidazo[1,2-a] pyrimidinones, quinazolinones and amides in the presence of NiFe2O4@SiO2@glucose amine under solvent-free conditions. Conclusion: In conclusion, we developed NiFe2O4@SiO2 @glucose amine-catalysed multicomponent synthesis of quinazolinones and imidazo[1,2-a]pyrimidinones using the reaction of benzaldehyde, dimedone or indane-dione and 2-aminobenzimidazole and multicomponent synthesis of amides using arenes, cyclic anhydrides and 2-aminobenzimidazole by a solvent-free technique. This method proves to be a robust and innovative approach for the synthesis of a biologically important structure. The operational simplicity, the excellent yields of products, ease of separation and recyclability of the magnetic catalyst, waste reduction and high selectivity are the main advantages of this method. Furthermore, this new avenue is cheap and environmentally benign.
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mousavian, Seyedsaman, Parham Faravar, Zeinab Zarei, Reza azimikia, Mohsen Ghasemi Monjezi, and Ehsan kianfar. "Modeling and simulation absorption of CO2 using hollow fiber membranes (HFM) with mono-ethanol amine with computational fluid dynamics." Journal of Environmental Chemical Engineering 8, no. 4 (August 2020): 103946. http://dx.doi.org/10.1016/j.jece.2020.103946.

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Osorio, F., M. Sánchez, and J. C. Torres. "Preliminary Studies for Obtaining Biofuel by Absorption with Mono-ethanol-amine from Anaerobic Digestion Biogas in a Wastewater Treatment Plant." Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 36, no. 18 (July 15, 2014): 2043–51. http://dx.doi.org/10.1080/15567036.2011.561272.

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Kalatjari, Hamid Reza, Ali Haghtalab, Mohammad Reza Jafari Nasr, and Amir Heydarinasab. "Experimental, simulation and thermodynamic modeling of an acid gas removal pilot plant for CO2 capturing by mono-ethanol amine solution." Journal of Natural Gas Science and Engineering 72 (December 2019): 103001. http://dx.doi.org/10.1016/j.jngse.2019.103001.

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Dissertations / Theses on the topic "Mono ethanol amine"

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Bergström, Sandra. "Koldioxidavskiljning på ett biobränsleeldat kraftvärmeverk : Simulering av två avskiljningstekniker vid Karlstad Energis kraftvärmeverk, Heden 3." Thesis, Karlstads universitet, Institutionen för ingenjörs- och kemivetenskaper (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-78918.

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BECCS (Bioenergy Carbon Capture and Storage) is an important part of measures to achieve zero net emissions globally by 2050, as the technology can create carbon sinks. However, the technology is very energy-intensive and expensive, and affects the existing systems at implementation. The purpose of this study is to investigate the possibility of implementing BECCS at Karlstad Energy's biofuel-fired CHP-plant, Heden 3. The goal is, by simulation in CHEMCAD, to generate energy consumption key figures for two different separation technologies (MEA-MonoEthanolAmine and HPC-HotPotassiumCarbonate) with 90 % separation rate in three different operating cases. In addition, the systemic impact on Heden 3 will be determined by analyzing three different scenarios. In the first scenario fuel consumption is kept unchanged and steam to the carbon capture system is extracted before the turbine. In the second scenario fuel supply increases to meet the district heating needs of the existing system and steam to the carbon capture system is extracted before the turbine. In the third scenario fuel supply is kept unchanged and steam is extracted from the turbine. In addition, the study investigates various transport options for storage of carbon dioxide and finally calculate the total carbon sink Karlstad Energy can contribute to. The results show that production of electricity is reduced by 65-87 % after implementation of MEA and 151-238 % for HPC in the first scenario. Without heat utilization in the carbon capture system, heat production is reduced by 66-86 % with MEA and 54-76% for HPC. In the second scenario, a fuel supply increase by 134 % is required to meet the needs, which corresponds to more than twice the boiler capacity and results in a reduced production of electricity by 247 %. In the third scenario, production of electricity is reduced by 104 % at maximum load with HPC. The HPC system has high-quality heat to utilize, probably enough to meet the district heating needs without increasing the boiler power. But heat optimization opportunities need to be further explored in order to be able to express something to a greater extent. The MEA process does not offer the same opportunities for heat utilization. As the CHP-plant have heat as the main product, HPC would be a more suitable alternative despite the high load on the electricity production. The performance of the carbon dioxide plant seems to vary between different operating cases and it can be concluded that the variation is related to the flue gas composition rather than being load dependent. Transport of carbon dioxide by train has the lowest carbon dioxide emissions and requires the least number of cargoes for transport from Karlstad to storage in Norway. However, this is not relevant at present because of the lack of rail connection to the plant. Total carbon sink is approximately 127 000 tonnes per year if the boiler capacity is assumed to be unchanged.
BECCS (Bioenergy Carbon Capture and Storage) är en viktig del av åtgärder i målet om att nå nollnetto utsläpp år 2050 globalt, då tekniken kan skapa kolsänkor. Tekniken är dock mycket energikrävande och dyr, och påverkar de befintliga systemen vid implementering. Syftet med den här studien är att undersöka möjligheten att implementera BECCS på Karlstad Energis biobränsleeldade kraftvärmeverk, Heden 3. Målet är att, genom simulering i CHEMCAD, ta fram förbrukningsnyckeltal för två olika avskiljningstekniker (MEA-MonoEtanolAmin och HPC-HotPotassiumCarbonate) med 90 % avskiljningsgrad vid tre olika driftfall. Dessutom ska systempåverkan på Heden 3 fastställas genom analys av tre olika scenarier. I första scenariot hålls bränsleförbrukningen oförändrad och ånga till koldioxidavskiljningssystemet tappas av innan turbinen. I det andra scenariot ökar bränsletillförseln för att tillgodose fjärrvärmebehovet i det befintliga systemet och ånga till koldioxidavskiljningssystemet tappas av innan turbinen. I det tredje scenariot hålls bränsletillförseln oförändrad och ånga extraheras från turbinen. Därtill undersöks i studien olika transportmöjligheter till lagringsplats av koldioxiden och slutligen beräknas den totala kolsänkan Karlstad Energi kan bidra med. Resultaten visar att elproduktionen i det första scenariot reduceras med 65-87 % för MEA och för HPC 151-238 %. Utan värmeutnyttjande från koldioxidavskiljningssystemen reduceras värmeproduktionen med 66-86 % med MEA och 54-76 % med HPC. I det andra scenariot krävs att bränsletillförseln ökar med 134 % för att tillgodose behoven vilket motsvarar mer än dubbla panneffekten och innebär en reducerad elproduktion på 247 %. I det tredje scenariot reduceras elproduktionen med 104 % vid maximal last med HPC.  I HPC-systemet finns högvärdig värme att utnyttja, sannolikt tillräckligt mycket för att kunna uppfylla fjärrvärmebehovet utan att öka panneffekten. Men värmeoptimeringsmöjligheter behöver undersökas ytterligare för att kunna uttrycka något i större omfattning. I MEA-processen finns inte samma möjligheter till värmeutnyttjande. Eftersom kraftvärmeverket har värme som främsta produkt skulle således HPC vara ett lämpligare alternativ trots den höga belastningen på elproduktionen. Koldioxidanläggningens prestanda förefaller variera mellan olika driftfall och med en enklare undersökning kunde slutsatsen dras att variationen har ett samband med rökgassammansättningen snarare än att det är ett lastberoende. Transport av koldioxid med tåg har lägst koldioxidutsläpp och kräver minst antal laster för transport från Karlstad till lagring i Norge. Detta är dock inte aktuellt i dagsläget på grund av avsaknaden av räls in till verket. Den totala kolsänkan är cirka 127 000 ton per år om pannan antas köras oförändrat.
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Amara, Soumia. "CO2 capture in industry using chilled ammonia process." Thesis, KTH, Energiprocesser, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-292504.

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CO2 capture and storage (CCS) is estimated to reduce 14% of the global CO2 emissions in the 2 °C scenario presented by the International Energy Agency. Moreover, post combustion capture is identified as a potential method for CO2 capture from industry since it can be easily retrofitted without disturbing the core industrial process. Among the post-combustion capture methods, absorption using mono-ethanol amine (MEA) is the most mature technology that has been demonstrated at plant scale. However, using chilled ammonia process as a post combustion capture technology in a cement industry can reduce 47% energy penalty for CO2 capture when compared to the conventional MEA absorption method.  Hence, the current project aims at analyzing the chilled ammonia process when integrated with steel and ammonia plants. Key performance indicator like specific primary energy consumption per kilogram of CO2 avoided (SPECCA) is estimated and compared with MEA absorption method. Firstly, chilled ammonia process (CAP) for cement plant was used as reference case. Then, CAP for steel and ammonia processes was optimized by the means of the decision variables affecting the capture and energy efficiency. The energy consumption per kg CO2 captured and SPECCA was lower for the higher CO2 concentration in the flue gas. Results for SPECCA were 3,56, 3,52 and 3,61 MJ/kg CO2 for cement, steel, and ammonia plants, respectively.
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"Is Carbon Sequestration "Good" for the Environment? An Evaluation Based on Current Technology and Methods." Master's thesis, 2012. http://hdl.handle.net/2286/R.I.15119.

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abstract: Carbon capture and sequestration (CCS) is one of the important mitigation options for climate change. Numerous technologies to capture carbon dioxide (CO2) are in development but currently, capture using amines is the predominant technology. When the flue gas reacts with amines (Monoethanaloamine) the CO2 is absorbed into the solution and forms an intermediate product which then releases CO2 at higher temperature. The high temperature necessary to strip CO2 is provided by steam extracted from the powerplant thus reducing the net output of the powerplant by 25% to 35%. The reduction in electricity output for the same input of coal increases the emissions factor of Nitrogen Oxides, Mercury, Particulate matter, Ammonia, Volatile organic compounds for the same unit of electricity produced. The thesis questions if this tradeoff between CO2 and other emissions is beneficial or not. Three different methodologies, Life Cycle Assessment, Valuation models and cost benefit analysis are used to identify if there is a net benefit to the society on implementation of CCS to a Pulverized coal powerplant. These methodologies include the benefits due to reduction of CO2 and the disbenefits due to the increase of other emissions. The life cycle assessment using ecoindicator'99 methodology shows the CCS is not beneficial under Hierarchical and Egalitarian perspective. The valuation model shows that the inclusion of the other emissions reduces the benefit associated with CCS. For a lower CO2 price the valuation model shows that CCS is detrimental to the environment. The cost benefit analysis shows that a CO2 price of at least $80/tCO2 is required for the cost benefit ratio to be 1. The methodology integrates Montecarlo simulation to characterize the uncertainties associated with the valuation models.
Dissertation/Thesis
sima pro
excel sheets
M.S. Civil and Environmental Engineering 2012
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Book chapters on the topic "Mono ethanol amine"

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"RNA Isolation Protocol from Cells and Tissues." In Protocols used in Molecular Biology, edited by Pallavi Singh, 7–14. BENTHAM SCIENCE PUBLISHERS, 2020. http://dx.doi.org/10.2174/9789811439315120010005.

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The preparation of intact ribonucleic acid is difficult because of the action of nucleases, which are liberated upon tissue homogenisation. In many cells, high concentrations of the ribonucleases are reserved in the secretory granules and upon disruption of the cell, they get mixed with the RNA and lead to its degradation. Guanidinium chloride and thiocyanate are potent chaotropic agents that reduce hydrophobic interactions and disrupt protein tertiary structures, disassociate proteinnucleic acid complexes and disintegrate cellular structures. Guanidinium thiocyanate is especially strong protein denaturant because both the cation and anion disrupt the hydrophobic bonds between the amino acid side chains. RNA usually binds to proteins within a cell and this agent disassociates the nucleoprotein complex, without disrupting RNA structure. Thus RNA can be obtained by using these agents, after homogenisation and low-speed centrifugation and precipitated with ethanol. The protocol below explains the stepwise isolation of total RNA from cells and tissues using TRIzol reagent which is the mono-phasic solution of phenol and guanidine thiocyanate.
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