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Upcycling of CO2 into sustainable hydrocarbon fuels via the integration of Fe-based Fischer-Tropsch synthesis and olefin oligomerization: A comparative case study by Ruxing Gao; Lei Wang; Leiyu Zhang; Chundong Zhang; Ki-Won Jun; Seok Ki Kim; Hae-Gu Park; Tiansheng Zhao; Ying Gao; Yuezhao Zhu; Hui Wan; Guofeng Guan is a Engineering article available to read on EtoBox.

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Power-to-X (PtX) technologies, especially for the Power-to-Liquids (PtL) and Power-to-Gas (PtG) have attracted extensive attention recently, as promising pathways for carbon upcycling via converting CO2 into high-value products including liquid fuels and substitute natural gas (SNG). Herein, aiming at further improving the PtX process efficiency, we proposed two novel PtL/PtG hybrid processes, namely an indirect process (with RWGS unit) and a direct process (without RWGS unit) by integrating Fe-based Fischer-Tropsch synthesis (FTS) and olefin oligomerization technologies, which co-produce syncrude and SNG. Both process simulation and techno-economic analysis were implemented to evaluate the overall process performances, through various indicators involving technical indicators (e.g., syncrude production, energy efficiency, and net CO2 reduction), and economic indicators such as total capital investment, net CO2 reduction costs together with total product costs. Both proposed PtL/PtG processes are efficient in converting CO2 into valuable hydrocarbon fuels, and the syncrude production and total product revenues of indirect process are 2.35–14.58% and 7.55–8.51% higher than those of

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Author

Ruxing Gao; Lei Wang; Leiyu Zhang; Chundong Zhang; Ki-Won Jun; Seok Ki Kim; Hae-Gu Park; Tiansheng Zhao; Ying Gao; Yuezhao Zhu; Hui Wan; Guofeng Guan

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Engineering (Physical Sciences)