Journal
CHEM
Volume 7, Issue 9, Pages 2277-2311Publisher
CELL PRESS
DOI: 10.1016/j.chempr.2021.02.024
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Funding
- U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Catalysis Science Program [DE-SC0012704]
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The catalytic hydrogenation of CO2 with renewable H-2 is considered as one of the most practical approaches for the reduction of CO2 and the synthesis of valuable chemicals and fuels. However, existing routes for CO2 hydrogenation to olefins and aromatics are often limited by low selectivity and catalyst deactivation.
The catalytic hydrogenation of CO2 with renewable H-2 is considered as one of the most practical approaches for the reduction of CO2 and the synthesis of valuable chemicals and fuels. Among the value-added products, olefins and aromatics are highly attractive as essential industrial feedstocks. CO2 hydrogenation to olefins and aromatics mainly undergoes a CO2-modified Fischer-Tropsch synthesis (CO2-FTS) route or a methanol-mediated (MeOH) route, but is often limited by low selectivity and catalyst deactivation. In this review, we first overview the reaction mechanisms and key intermediates along the CO2-FTS andMeOH routes. For each route, we summarize the recent progress toward the catalyst development as well as the optimization of reaction conditions. We conclude the review by identifying challenges and opportunities with an emphasis on approaches for exceeding the product distribution limit, suppressing the catalyst deactivation, and improving the feasibility of low-pressure operation by continuous consumption of key intermediates.
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