Journal ArticleDOI
Catalysts for Production of Lower Olefins from Synthesis Gas: A Review
TLDR
In this paper, the major routes for the production of lower olefins from synthesis gas with an emphasis on a direct or single step process, the so-called Fischer-Tropsch to olefin process, is described.Abstract:
C2 to C4 olefins are traditionally produced from steam cracking of naphtha. The necessity for alternative production routes for these major commodity chemicals via non-oil-based processes has driven research in past times during the oil crises. Currently, there is a renewed interest in producing lower olefins from alternative feedstocks such as coal, natural gas, or biomass, in view of high oil prices, environmental regulations, and strategies to gain independence from oil imports. This review describes the major routes for the production of lower olefins from synthesis gas with an emphasis on a direct or single step process, the so-called FTO or Fischer–Tropsch to olefins process. The different catalysts for FTO are outlined and compared, and the key issues and requirements for future developments are highlighted. Iron-based catalysts are prevailing for FTO, and reproducible lower olefin selectivities of 50 wt % of hydrocarbons produced have been realized at CO conversions higher than 70% for 60 to 1000 ...read more
Citations
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Journal ArticleDOI
Catalytic dehydrogenation of light alkanes on metals and metal oxides.
TL;DR: The study compares different catalysts in terms of the reaction mechanism and deactivation pathways and catalytic performance, as dehydrogenation for the production of light olefins has become extremely relevant.
Journal ArticleDOI
Selective conversion of syngas to light olefins.
Jiao Feng,Jinjing Li,Xiulian Pan,Jianping Xiao,Haobo Li,Hao Ma,Mingming Wei,Yang Pan,Zhongyue Zhou,Mingrun Li,Shu Miao,Jian Li,Yifeng Zhu,Dong Xiao,Ting He,Junhao Yang,Fei Qi,Qiang Fu,Xinhe Bao +18 more
TL;DR: A composite catalyst circumvents conventional limitations on the Fischer-Tropsch synthesis of light olefins from syngas and achieves higher conversions and avoids deactivation through carbon buildup, by enabling a bifunctional catalyst affording two types of active sites with complementary properties.
Journal ArticleDOI
Selective Hydrogenation over Supported Metal Catalysts: From Nanoparticles to Single Atoms
TL;DR: The key factors affecting the catalytic activity/selectivity, in particular, the geometric and electronic structure of the active sites, are discussed with the aim to extract fundamental principles for the development of efficient and selective catalysts in hydrogenation as well as other transformations.
Journal ArticleDOI
New horizon in C1 chemistry: breaking the selectivity limitation in transformation of syngas and hydrogenation of CO2 into hydrocarbon chemicals and fuels
TL;DR: Recent advances in breaking the selectivity limitation of Fischer-Tropsch synthesis by using a reaction coupling strategy for hydrogenation of both CO and CO2 into C2+ hydrocarbons, which include key building-block chemicals and liquid fuels.
Journal ArticleDOI
Electrochemical CO2 Reduction into Chemical Feedstocks: From Mechanistic Electrocatalysis Models to System Design.
Golam Kibria,Jonathan P. Edwards,Christine M. Gabardo,Cao-Thang Dinh,Ali Seifitokaldani,David Sinton,Edward H. Sargent +6 more
TL;DR: A techno-economic analysis is presented with the goal of identifying maximally profitable products and the performance targets that must be met to ensure economic viability-metrics that include current density, Faradaic efficiency, energy efficiency, and stability.
References
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TL;DR: In this article, the Fischer-Tropsch (FT) reaction is used to produce purified syngas and its composition should match the overall usage ratio of the FT reactions, which depends on the product selectivity.
Journal ArticleDOI
Design, synthesis, and use of cobalt-based Fischer-Tropsch synthesis catalysts
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