Hydrocarbon Synthesis from Carbon Dioxide and Hydrogen: A Two-Step Process

被引：40

作者：

Drab, David M. ^{[1
]}

Willauer, Heather D. ^{[1
]}

Olsen, Matthew T. ^{[1
]}

Ananth, Ramagopal ^{[2
]}

Mushrush, George W. ^{[1
]}

Baldwin, Jeffrey W. ^{[3
]}

Hardy, Dennis R. ^{[4
]}

Williams, Frederick W. ^{[2
]}

机构：

[1] US Naval Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA

[2] US Naval Res Lab, Div Chem, Washington, DC 20375 USA

[3] US Naval Res Lab, Acoust Div, Washington, DC 20375 USA

[4] Nova Res Inc, Alexandria, VA 22308 USA

来源：

ENERGY & FUELS | 2013年 / 27卷 / 11期

关键词：

FISCHER-TROPSCH SYNTHESIS; STABLE HETEROGENEOUS OLIGOMERIZATION; MESOPOROUS SILICA-ALUMINA; CO2; HYDROGENATION; HIGHLY EFFICIENT; PHASE-TRANSITION; CATALYSTS; ACTIVATION; PRESSURE; RECOVERY;

D O I：

10.1021/ef4011115

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

CO2 hydrogenation to olefins and ethylene oligomerization were investigated in efforts to improve catalyst composition and reaction conditions needed for scale-up. The hydrogenation of CO2 to hydrocarbons is investigated over gamma- alumina-supported iron-based iron-based catalysts modified with manganese and potassium promoters and a silica-stabilized coating under fixed-bed reactor conditions to produce unsaturated hydrocarbons as feedstock chemicals for jet fuel synthesis. The stabilizer is introduced by impregnating the K/Mn/Fe on Al2O3 catalyst with tetraethylorthosilicate (TEOS) to minimize the deactivating effects of water on catalyst activity in CO2 hydrogenation. The K/Mn/Fe on Al2O3 catalyst modified with the TEOS and reduced in CO produced a lighter end fraction of olefins compared to the catalyst reduced in H-2. To increase the chain length of the olefins formed in the CO2 hydrogenation step, investigation of the oligomerization reaction is conducted in a separate experiment, where pure ethylene is used as a model olefin. Ethylene oligomerization over pelletized amorphous silica-alumina (ASA)-supported Ni catalysts demonstrated high conversion and selectivity toward the jet fuel fraction (C-8-C-16) at a very low mass hourly space velocity (MHSV).

引用

页码：6348 / 6354

页数：7

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