scholarly journals Effect of Zeolite Topology and Reactor Configuration on the Direct Conversion of CO2 to Light Olefins and Aromatics

ACS Catalysis ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 6320-6334 ◽  
Author(s):  
Adrian Ramirez ◽  
Abhishek Dutta Chowdhury ◽  
Abhay Dokania ◽  
Pieter Cnudde ◽  
Mustafa Caglayan ◽  
...  
Keyword(s):  
Direct Conversion ◽  
Light Olefins ◽  
Reactor Configuration

scholarly journals Utilization of SAPO-18 or SAPO-35 in the bifunctional catalyst for the direct conversion of syngas to light olefins

RSC Advances ◽  
2021 ◽  
Vol 11 (23) ◽  
pp. 13876-13884
Author(s):  
Yuxuan Huang ◽  
Hongfang Ma ◽  
Zhiqiang Xu ◽  
Weixin Qian ◽  
Haitao Zhang ◽  
...  
Keyword(s):  
Direct Conversion ◽  
Bifunctional Catalyst ◽  
Light Olefins

SAPO-18 and SAPO-35 were synthesized and utilized as the zeotype in the bifunctional catalyst for the STO process, respectively.

Heterogeneous catalysts for gas-phase conversion of ethylene to higher olefins

2018 ◽  
Vol 34 (5) ◽  
pp. 595-655 ◽  
Author(s):  
Mohammad Ghashghaee
Keyword(s):  
Gas Phase ◽  
Active Sites ◽  
Heterogeneous Catalysts ◽  
Supply And Demand ◽  
Value Added ◽  
Direct Conversion ◽  
Operating Conditions ◽  
Light Olefins ◽  
Phase Conversion ◽  
Natural Gas Reservoirs

Abstract The reduced availability of propylene and C4 products from steam crackers continues to provoke on-purpose technologies for light olefins such that almost 30% of propylene in 2025 is predicted to be supplied from unconventional sources. Furthermore, the recent discoveries of natural gas reservoirs have urged interest in the conversion of surplus alkanes and alkenes, especially ethane and ethylene. The direct conversion of ethylene to propylene or a combination of value-added chemicals, including butylenes and oligomers in the range of gasoline and diesel fuel, provides the capability of responding to the fluctuations in the balance between supply and demand of the main petrochemicals. A comprehensive review of heterogeneous catalysts for the gas-phase conversion pathways is presented here in terms of catalytic performances (ethylene conversion and product selectivities), productivities, lifetimes, active sites, physicochemical properties, mechanisms, influence of operating conditions, deactivation and some unresolved/less-advanced aspects of the field. The addressed catalysts cover both zeolitic materials and transition metals, such as tungsten, molybdenum, rhenium and nickel. Efforts in both experimental and theoretical studies are taken into account. Aside from the potential fields of progress, the review reveals very promising performances for the emerging technologies to produce propylene, a mixture of propylene and butenes, or a liquid fuel from ethylene.

Highly active ternary oxide ZrCeZnOx combined with SAPO-34 zeolite for direct conversion of syngas into light olefins

2020 ◽  
Author(s):  
Fanhui Meng ◽  
Xiaojing Li ◽  
Peng Zhang ◽  
Langlang Yang ◽  
Guinan Yang ◽  
...  
Keyword(s):  
Direct Conversion ◽  
Light Olefins ◽  
Ternary Oxide ◽  
Highly Active

Direct Conversion of Syngas into Light Olefins with Low CO2 Emission

ACS Catalysis ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 2046-2059 ◽  
Author(s):  
Sen Wang ◽  
Pengfei Wang ◽  
Dezhi Shi ◽  
Shipei He ◽  
Li Zhang ◽  
...  
Keyword(s):  
Co2 Emission ◽  
Direct Conversion ◽  
Light Olefins ◽  
Low Co2

Direct conversion of synthesis gas to light olefins using dual bed reactor

2009 ◽  
Vol 15 (6) ◽  
pp. 847-853 ◽  
Author(s):  
Jo-Yong Park ◽  
Yun-Jo Lee ◽  
Ki-Won Jun ◽  
Jong Wook Bae ◽  
Nagabhatla Viswanadham ◽  
...  
Keyword(s):  
Synthesis Gas ◽  
Direct Conversion ◽  
Light Olefins ◽  
Dual Bed

scholarly journals Direct Conversion of Syngas to Light Olefins over a ZnCrOx + H-SSZ-13 Bifunctional Catalyst

ACS Omega ◽  
2021 ◽  
Vol 6 (16) ◽  
pp. 10953-10962
Author(s):  
Yuxuan Huang ◽  
Hongfang Ma ◽  
Zhiqiang Xu ◽  
Weixin Qian ◽  
Haitao Zhang ◽  
...  
Keyword(s):  
Direct Conversion ◽  
Bifunctional Catalyst ◽  
Light Olefins

scholarly journals Syngas conversion on calcined Fe-Ti-Zn-K catalysts. Part 2. Direct conversion of synthesis gas to light olefins in the slurry phase.

1985 ◽  
Vol 28 (2) ◽  
pp. 148-155 ◽  
Author(s):  
Kiyomi OKABE ◽  
Tsuneji SANO ◽  
Kenji SAITOH ◽  
Hiroyuki HAGIWARA ◽  
Michio ARAKI ◽  
...  
Keyword(s):  
Synthesis Gas ◽  
Direct Conversion ◽  
Light Olefins ◽  
Syngas Conversion ◽  
Slurry Phase

Hydrothermal preparation of Fe–Zr catalysts for the direct conversion of syngas to light olefins

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34204-34211 ◽  
Author(s):  
Ning Chen ◽  
Jianli Zhang ◽  
Qingxiang Ma ◽  
Subing Fan ◽  
Tian-Sheng Zhao
Keyword(s):  
Co Hydrogenation ◽  
Direct Conversion ◽  
Product Distribution ◽  
Light Olefins ◽  
Hydrothermal Preparation ◽  
Heavy Hydrocarbons ◽  
Olefin Selectivity

Two-step hydrothermal preparation of Fe/Zr–K catalysts could improve the olefin selectivity and product distribution by reducing the secondary hydrogenation ability and suppressing the formation of heavy hydrocarbons during CO hydrogenation.

scholarly journals Coated sulfated zirconia/SAPO-34 for the direct conversion of CO2 to light olefins

2020 ◽  
Vol 10 (5) ◽  
pp. 1507-1517 ◽  
Author(s):  
Adrian Ramirez ◽  
Abhishek Dutta Chowdhury ◽  
Mustafa Caglayan ◽  
Alberto Rodriguez-Gomez ◽  
Nimer Wehbe ◽  
...  
Keyword(s):  
Carbon Cycle ◽  
Metal Oxides ◽  
Sulfated Zirconia ◽  
Fossil Fuel ◽  
Direct Conversion ◽  
Light Olefins ◽  
Bifunctional Catalysts

The conversion of CO2 to light olefins via bifunctional catalysts (i.e. metal oxides/zeolites) is a promising approach to tackle CO2 emissions and, at the same time, reduce fossil-fuel dependence by closing the carbon cycle.

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