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Light olefins synthesis from С

Anton SHALYGIN, Evgenii PAUKSHTIS, Evgenii KOVALYOV, Bair BAL’ZHINIMAEV

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 279-288 doi: 10.1007/s11705-013-1338-1

Abstract: A two-step process was employed to convert methane or ethane to light olefins via the formation of an

Keywords： oxychlorination     methane     ethane     light olefins     ruthenium catalyst    

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Effect of temperature in the conversion of methanol to olefins (MTO) using an extruded SAPO-34 catalyst

Ignacio Jorge Castellanos-Beltran, Gnouyaro Palla Assima, Jean-Michel Lavoie

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 226-238 doi: 10.1007/s11705-018-1709-8

Abstract: The methanol-to-olefin (MTO) reaction was investigated in a bench-scale, fixed-bed reactor using an extruded catalyst composed of a commercial SAPO-34 (65 weight percentage, wt-%) embedded in an amorphous SiO matrix (35 wt-%). The texture properties, acidity and crystal structure of the pure SAPO-34 and its extruded form (E-SAPO-34) were analyzed and results indicated that the extrusion step did not affect the properties of the catalyst. Subsequently, E-SAPO-34 was tested in a temperature range between 300 and 500 °C, using an aqueous methanol mixture (80 wt-% water content) fed at a weight hour space velocity (WHSV) of 1.21 h . At 300 °C, a low conversion was observed combined with catalyst deactivation, which was ascribed to oligomerization and condensation reactions. The coke analysis showed the presence of diamandoid hydrocarbons, which are known to be inactive molecules in the MTO process. At higher temperatures, a quasi-steady state was reached during a 6 h reaction where the optimal temperature was identified at 450 °C, which incidentally led to the lowest coke deposition combined with the highest H/C ratio. Above 450 °C, surges of ethylene and methane were associated to a combination of H-transfer and protolytic cracking reactions. Finally, the present work underscored the convenience of the extrusion technique for testing catalysts at simulated scale-up conditions.

Keywords： MTO     SAPO-34     temperature     extrusion     coke     light alkanes    

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Targeted Catalytic Cracking to Olefins (TCO): Reaction Mechanism, Production Scheme, and Process Perspectives Review

Youhao Xu, Yanfen Zuo, Wenjie Yang, Xingtian Shu, Wei Chen, Anmin Zheng

Engineering 2023, Volume 30, Issue 11,   Pages 100-109 doi: 10.1016/j.eng.2023.02.018

Abstract:

Light olefins are important organic building blocks in the chemicals industry.To maximize the production of light olefins and reduce carbon emissions, the perceived benefits of variousconversion as a link to expand upstream and downstream processes, a targeted catalytic cracking to olefins

Keywords： Light olefins     Steam cracking     Catalytic cracking     TCO process     Oil processing revolution    

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Selective epoxidation of linear terminal olefins with metalloporphyrins under mild conditions

Xiaoguang BAI, Yuanbin SHE

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 310-313 doi: 10.1007/s11705-009-0168-7

Abstract: The epoxidation of linear terminal olefins with metalloporphyrins in the presence of dioxygen and isobutyraldehydeThe results show that all olefins could be smoothly converted to epoxides with high selectivities (70%

Keywords： metalloporphyrins     olefins     dioxygen     epoxidation    

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Confinement effects in methanol to olefins catalysed by zeolites: A computational review

German Sastre

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 76-89 doi: 10.1007/s11705-016-1557-3

Abstract: , containing 8-rings as the largest, are widely employed as catalysts in the process of methanol-to-olefinsSmall pore zeolites and silicon-aluminophosphates(SAPOs) containing cavities, where olefins are mainly

Keywords： small pore zeolites     SAPOs     methanol-to-olefins     hydrocarbon pool mechanism     alkylation of polymethylbenzenes    

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Benzene alkylation with long chain olefins catalyzed by ionic liquids: a review

QIAO Congzhen, CAI Yonghong, GUO Quanhui

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 346-352 doi: 10.1007/s11705-008-0045-9

Abstract: The introduction of ionic liquids to alkylation process gives a choice for “green production” in the petrochemical and detergent industry. A lot of papers and patents have been published using chloroaluminate ionic liquid as a novel catalyst for alkylation with high reactivity and easy separation from reactants. These included the acidity, characterization, determination and catalysis technologies in batch and continuous operation mode for different scales. According to published data and several results of pilot alkylation,including the authors’ experience,the prospect of chloroaluminate ionic liquids for commercials was also discussed. It has been pointed out that there still are many difficulties and challenges to be overcome for commercial application of the ionic liquid catalyst.

Keywords： different     petrochemical     characterization     introduction     chloroaluminate    

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Continuous reaction performances of benzene alkylation with long chain olefins catalyzed by ionic liquid

QIAO Congzhen, LI Chengyue

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 69-73 doi: 10.1007/s11705-008-0014-3

Abstract: small experimental setup,the continuous reaction performances of benzene alkylation with long chain olefinsstatic mixing reactor (reagent materials) and normal continuous alkylation using industrial paraffin and olefinsThe refined industrial olefins as raw material could meet with the requirements of continuous alkylationThe influences of impurities such as di-olefins and non-benzene aromatics on the catalytic activity and

Keywords： stability     different     hypecritical     compulsive mixing-reacting-separating-recycling     non-benzene    

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Photocatalysis: from solar light to hydrogen energy

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 565-567 doi: 10.1007/s11708-021-0784-6

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A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 89-97 doi: 10.1007/s11708-012-0176-z

Abstract: This paper discusses two problems in in-line particle sizing when using light fluctuation method.First, by retrieving the ratio of particle concentrations at different time, the intensity of incident lightThere exists narrow error between the calculated and pre-detected value of the intensity of incident light

Keywords： in-line measurement     particle size distribution (PSD)     incident light intensity     particle concentration     light fluctuation    

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surfactant-assisted synthesis of mesoporous SSZ-39 zeolite with enhanced catalytic performance in the methanol-to-olefins

Hao Xu, Chi Lei, Qinming Wu, Qiuyan Zhu, Xiangju Meng, Daniel Dai, Stefan Maurer, Andrei-Nicolae Parvulescu, Ulrich Müller, Fengshou Xiao

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 267-274 doi: 10.1007/s11705-019-1845-9

Abstract: SSZ-39 zeolite with AEI framework structure is a good catalyst candidate for the methanol-to-olefins

Keywords： SSZ-39 zeolite     mesopores     organosilane surfactant     MTO reaction     soft template     mass transfer    

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Plasmonic light trapping for enhanced light absorption in film-coupled ultrathin metamaterial thermophotovoltaic

Qing NI, Hassan ALSHEHRI, Yue YANG, Hong YE, Liping WANG

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 185-194 doi: 10.1007/s11708-018-0522-x

Abstract: However, the light absorption in ultrathin cells is usually very weak compared to the corresponding bulk

Keywords： metamaterial     thermophotovoltaic     plasmonics     light trapping     selective absorption    

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HQ in inland saline-alkaline water under different light qualities

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1479-2

Abstract:

• Optimal growth of Chlorella in inland saline-alkaline water was achieved by blue LED.

Keywords： Light quality     Chlorella     Inland saline-alkaline water     Fatty acid     Biodiesel property    

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Effect of light scattering on the performance of a direct absorption solar collector

Kwang Hyun WON, Bong Jae LEE

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 169-177 doi: 10.1007/s11708-018-0527-5

Abstract: Therefore, for the DASC utilizing a plasmonic nanofluid supporting the LSP, light scattering from metallicIt is found that the light scattering can improve the collector performance if the scattering coefficient

Keywords： direct absorption solar collector     plasmonic nanofluid     light scattering    

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DMTO: A Sustainable Methanol-to-Olefins Technology

Mao Ye, Peng Tian, Zhongmin Liu

Engineering 2021, Volume 7, Issue 1,   Pages 17-21 doi: 10.1016/j.eng.2020.12.001

Keywords： EngineeringAchievements    

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Lignin-derived dual-function red light carbon dots for hypochlorite detection and anti-counterfeiting

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 966-975 doi: 10.1007/s11705-022-2244-1

Abstract: Furthermore, a new type of visible-light and fluorescence dual-channel information encryption platform

Keywords： alkali lignin     red light carbon dots     hypochlorite     encryption and anti-counterfeiting    

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Title Author Date Type Operation

Light olefins synthesis from С

Anton SHALYGIN, Evgenii PAUKSHTIS, Evgenii KOVALYOV, Bair BAL’ZHINIMAEV

Journal Article

Effect of temperature in the conversion of methanol to olefins (MTO) using an extruded SAPO-34 catalyst

Ignacio Jorge Castellanos-Beltran, Gnouyaro Palla Assima, Jean-Michel Lavoie

Journal Article

Targeted Catalytic Cracking to Olefins (TCO): Reaction Mechanism, Production Scheme, and Process Perspectives

Youhao Xu, Yanfen Zuo, Wenjie Yang, Xingtian Shu, Wei Chen, Anmin Zheng

Journal Article

Selective epoxidation of linear terminal olefins with metalloporphyrins under mild conditions

Xiaoguang BAI, Yuanbin SHE

Journal Article

Confinement effects in methanol to olefins catalysed by zeolites: A computational review

German Sastre

Journal Article

Benzene alkylation with long chain olefins catalyzed by ionic liquids: a review

QIAO Congzhen, CAI Yonghong, GUO Quanhui

Journal Article

Continuous reaction performances of benzene alkylation with long chain olefins catalyzed by ionic liquid

QIAO Congzhen, LI Chengyue

Journal Article

Photocatalysis: from solar light to hydrogen energy

Journal Article

A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Journal Article

surfactant-assisted synthesis of mesoporous SSZ-39 zeolite with enhanced catalytic performance in the methanol-to-olefins

Hao Xu, Chi Lei, Qinming Wu, Qiuyan Zhu, Xiangju Meng, Daniel Dai, Stefan Maurer, Andrei-Nicolae Parvulescu, Ulrich Müller, Fengshou Xiao

Journal Article

Plasmonic light trapping for enhanced light absorption in film-coupled ultrathin metamaterial thermophotovoltaic

Qing NI, Hassan ALSHEHRI, Yue YANG, Hong YE, Liping WANG

Journal Article

HQ in inland saline-alkaline water under different light qualities

Journal Article

Effect of light scattering on the performance of a direct absorption solar collector

Kwang Hyun WON, Bong Jae LEE

Journal Article

DMTO: A Sustainable Methanol-to-Olefins Technology

Mao Ye, Peng Tian, Zhongmin Liu

Journal Article

Lignin-derived dual-function red light carbon dots for hypochlorite detection and anti-counterfeiting

Journal Article