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Calculation and analysis of sub/supercritical methanol preheating tube for continuous production of biodieselvia supercritical methanol transesterification

Wen CHEN, Weiyong YING, Cunwen WANG, Weiguo WANG, Yuanxin WU, Junfeng ZHANG,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 423-431 doi: 10.1007/s11708-009-0075-0

Abstract: Supercritical methanol transesterification for biodiesel has recently been concerned because of its obviousThe tubular reactor is an ideal reactor for continuous preparation of biodiesel via supercritical methanolfor supercritical methanol transesterification is usually 520―600K./supercritical methanol with temperature are first discussed./supercritical methanol preheating tube when methanol is preheated from 298K to 600K

Keywords： sub/supercritical methanol     preheating tube     integration method     biodiesel    

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Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acid

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 401-407 doi: 10.1007/s11705-013-1354-1

Abstract: In this study biodiesel was produced from WFO in sub- and super-critical methanol on a zeolite Y solidThe procedure was optimized using a design of experiments by varying the methanol to WFO molar ratio,The transesterification of WFO with methanol around its critical temperature combined with a zeolite

Keywords： biodiesel     methanol     critical temperature     waste frying oil     zeolite Y    

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Simulation analysis of methanol flash distillation circulation process in biodiesel production with supercritical

Zhengjiao TANG, Cunwen WANG, Weiguo WANG, Jia GUO, Yuanxin WU, Jinfang CHEN, Yigang DING

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 93-97 doi: 10.1007/s11708-010-0028-7

Abstract: High methanol-to-oil ratio is required to obtain a high conversion of oil for the production of biodieselwith supercritical methanol.Recovering the methanol of a stream issuing from a transesterification supercritical reactor by flashThe difference of the recovery percentage of methanol of the above two flash processes is less than 0.5%The process in which the product of transesterification of soybean oil with supercritical methanol is

Keywords： supercritical methanol     biodiesel     recovery     flash distillation    

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Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11684-022-1565-0

Abstract:

● Cu addition enhances CH<sub>3sub>OH oxidation and alleviates

Keywords： Copper modification     Sb-CeZr<sub>2sub>O<sub>xsub> catalyst     NO<sub>xsub>     Methanol    

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Design and analysis of dual fuel methanol-power poly-generation

Minghua WANG , Zheng LI , Weidou NI ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 341-347 doi: 10.1007/s11708-009-0023-z

Abstract: To help clearly understand the system performance, a 1.2×10−3.2×10kg methanol

Keywords： dual fuel     methanol-power poly-generation     CO<sub>2sub> and CH<sub>4sub> reforming     splitting ratio    

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Chemical reactions of oily sludge catalyzed by iron oxide under supercritical water gasification condition

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 886-896 doi: 10.1007/s11705-021-2125-z

Abstract: Supercritical water gasification is a promising technology in dealing with the degradation of hazardousTo evaluate the mechanism of Fe<sub>2sub>O<sub>3sub> catalyst and the migration pathways of heteroatomsIn terms of the catalytic mechanisms of Fe<sub>2sub>O<sub>3sub>, the surface lattice oxygen is consumedThe heteroatom O was removed under the effects of supercritical water.sub>3sub> catalyst, helped accelerate the degradation of asphaltenes.

Keywords： oily sludge     SCWG     ReaxFF     Fe<sub>2sub>O<sub>3sub>     heteroatoms    

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Polydimethylsiloxane assisted supercritical CO

Weixia Wang, Shuai Zhou, Zhong Xin, Yaoqi Shi, Shicheng Zhao

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 396-404 doi: 10.1007/s11705-016-1577-z

Abstract: The effect of PDMS viscosity on the foaming behavior of HMSPP was systematically investigated using supercritical

Keywords： high melt strength polypropylene (HMSPP)     polydimethylsiloxane (PDMS)     supercritical CO<sub>2sub>     foaming    

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Thermo-economic analysis of a direct supercritical CO electric power generation system using geothermal

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 246-262 doi: 10.1007/s11708-021-0749-9

Abstract: A comprehensive thermo-economic model combining a geothermal heat mining system and a direct supercriticalCO<sub>2sub> turbine expansion electric power generation system was proposed in this paper.>2sub> injection flowrate, CO<sub>2sub> injection temperature, and monitored production well bottomIt was found that for a 100 MW<sub>esub> power plant, a minimal LCOE of $0.177/kWh was achieved fora 20-year steady operation without considering CO<sub>2sub> sequestration credit.

Keywords： geothermal heat mining     supercritical CO<sub>2sub>     power generation     thermo-economic analysis     optimization    

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Key problems and solutions in supercritical CO

Haizhu WANG, Gensheng LI, Bin ZHU, Kamy SEPEHRNOORI, Lujie SHI, Yong ZHENG, Xiaomei SHI

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 667-672 doi: 10.1007/s11708-019-0626-y

Abstract: Supercritical CO fracturing is considered to be a new method for efficient exploitation of unconventionalSupercritical CO has many special properties including low viscosity, high diffusion coefficient, andthe problem of poor capacity in proppant carrying and sand plug, the methods of adding tackifier into supercriticalAfter solving the above three problems, the field test of supercritical CO fracturing can be conductedThe research results can promote the industrialization process of supercritical CO fracturing.

Keywords： supercritical CO<sub>2sub>     fracturing     friction loss     proppant carrying     flied test problem    

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An efficient technique for improving methanol yield using dual CO

Yang Su, Liping Lü, Weifeng Shen, Shun’an Wei

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 614-628 doi: 10.1007/s11705-019-1849-5

Abstract: Abstract Steam methane reforming (SMR)-based methanol synthesis plants utilizing a single CO2 feed representone of the predominant technologies for improving methanol yield and CO2 utilization.We also propose an innovative methanol production approach in which captured CO2 is introduced into boththe SMR process and the recycle gas of the methanol synthesis loop.productivity and CO2 utilization than the existing stand-alone natural gas-based methanol process.

Keywords： methanol synthesis     CO<sub>2sub> utilization     dry methane reforming     steam methane reforming     process design    

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Enhanced hydrogen production from aqueous methanol solution using TiO

Paramasivan GOMATHISANKAR,Tomoko NODA,Hideyuki KATSUMATA,Tohru SUZUKI,Satoshi KANECO

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 197-202 doi: 10.1007/s11705-014-1417-y

Abstract: The photocatalytic hydrogen production from aqueous methanol solution using titanium dioxide (TiO ) was

Keywords： photocatalytic hydrogen generation     methanol     copper particles     TiO<sub>2sub>     metal-semiconductor interface    

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Preliminary experimental study of a supercritical CO

Junhyun CHO, Hyungki SHIN, Jongjae CHO, Young-Seok KANG, Ho-Sang RA, Chulwoo ROH, Beomjoon LEE, Gilbong LEE, Byunghui KIM, Young-Jin BAIK

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 452-460 doi: 10.1007/s11708-017-0504-4

Abstract: Research on applying a supercritical carbon dioxide power cycle (S-CO ) to concentrating solar powerA basic sub-kWe class test loop with a high-speed radial type turbo-generator and a test loop with aBy operating the sub-kWe class test loop using R134a as the working fluid instead of CO , an average

Keywords： supercritical CO<sub>2sub>     power cycle     turbomachinery     compressor     turbine    

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Preparation of Cu/ZrO

Xinmei LIU, Shaofen BAI, Huidong ZHUANG, Zifeng YAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 47-52 doi: 10.1007/s11705-011-1170-4

Abstract: Cu/ZrO catalysts for methanol synthesis from CO /H were respectively prepared by deposition coprecipitationThe conversion of CO and selectivity of methanol are higher for DP catalysts than for SP catalysts.

Keywords： Cu/ZrO<sub>2sub>     methanol synthesis     deposition coprecipitation     solid state reaction     CO<sub>2sub>/H<sub>2sub>    

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Preparation of Cu/ZnO/Al

Hui FAN, Huayan ZHENG, Zhong LI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 445-451 doi: 10.1007/s11705-010-0521-x

Abstract: precipitated and aged by conventional and microwave heating methods and tested in the slurry phase reactor for methanolstability of the catalyst, the catalyst aged at 80°C for 1 h under microwave irradiation possessed higher methanol

Keywords： microwave irradiation     precipitation temperature     aging temperature     methanol synthesis     Cu/ZnO/Al<sub>2sub>O<sub>3sub> catalyst    

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Effect of SiO

Qian WANG, Lei WANG, Hui WANG, Zengxi LI, Xiangping ZHANG, Suojiang ZHANG, Kebin ZHOU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 79-88 doi: 10.1007/s11705-010-0550-5

Abstract: A series of SAPO-34 molecular sieves with different SiO /Al O ratios have been synthesized for the methanol-to-olefin

Keywords： HZSM-5     SAPO-34     methanol-to-olefin (MTO)     SiO<sub>2sub>/Al<sub>2sub>O<sub>3sub> ratio    

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Title Author Date Type Operation

Calculation and analysis of sub/supercritical methanol preheating tube for continuous production of biodieselvia supercritical methanol transesterification

Wen CHEN, Weiyong YING, Cunwen WANG, Weiguo WANG, Yuanxin WU, Junfeng ZHANG,

Journal Article

Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acid

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Journal Article

Simulation analysis of methanol flash distillation circulation process in biodiesel production with supercritical

Zhengjiao TANG, Cunwen WANG, Weiguo WANG, Jia GUO, Yuanxin WU, Jinfang CHEN, Yigang DING

Journal Article

Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Journal Article

Design and analysis of dual fuel methanol-power poly-generation

Minghua WANG , Zheng LI , Weidou NI ,

Journal Article

Chemical reactions of oily sludge catalyzed by iron oxide under supercritical water gasification condition

Journal Article

Polydimethylsiloxane assisted supercritical CO

Weixia Wang, Shuai Zhou, Zhong Xin, Yaoqi Shi, Shicheng Zhao

Journal Article

Thermo-economic analysis of a direct supercritical CO electric power generation system using geothermal

Journal Article

Key problems and solutions in supercritical CO

Haizhu WANG, Gensheng LI, Bin ZHU, Kamy SEPEHRNOORI, Lujie SHI, Yong ZHENG, Xiaomei SHI

Journal Article

An efficient technique for improving methanol yield using dual CO

Yang Su, Liping Lü, Weifeng Shen, Shun’an Wei

Journal Article

Enhanced hydrogen production from aqueous methanol solution using TiO

Paramasivan GOMATHISANKAR,Tomoko NODA,Hideyuki KATSUMATA,Tohru SUZUKI,Satoshi KANECO

Journal Article

Preliminary experimental study of a supercritical CO

Junhyun CHO, Hyungki SHIN, Jongjae CHO, Young-Seok KANG, Ho-Sang RA, Chulwoo ROH, Beomjoon LEE, Gilbong LEE, Byunghui KIM, Young-Jin BAIK

Journal Article

Preparation of Cu/ZrO

Xinmei LIU, Shaofen BAI, Huidong ZHUANG, Zifeng YAN

Journal Article

Preparation of Cu/ZnO/Al

Hui FAN, Huayan ZHENG, Zhong LI

Journal Article

Effect of SiO

Qian WANG, Lei WANG, Hui WANG, Zengxi LI, Xiangping ZHANG, Suojiang ZHANG, Kebin ZHOU

Journal Article