Transformation of CO2 into liquid fuels and synthetic natural gas using green hydrogen: A comparative analysis

Ruxing Gao, Chundong Zhang, Ki Won Jun, Seok Ki Kim, Hae Gu Park, Tiansheng Zhao, Lei Wang, Hui Wan, Guofeng Guan

科研成果: 期刊稿件文章同行评审

42 引用 (Scopus)

摘要

The power-to-liquids (P2L) and power-to-gas (P2G) processes which utilize renewable power to convert carbon dioxide and water into value-added syncrude and synthetic natural gas have recently gained much attention as an efficient way for CO2 mitigation. Based on our previously proposed direct P2L and P2L/P2G hybrid processes in the absence of the reverse-water–gas-shift unit, in this work, we developed the indirect P2L and P2L/P2G hybrid processes combined with the reverse-water–gas-shift unit, which produce solely syncrude and the combination of syncrude and synthetic natural gas, respectively. A comparative study of the indirect and direct P2L and P2L/P2G hybrid processes via the process modelling and techno-economic analysis was implemented to quantitatively evaluate their process performance differences, and it was indicated that the indirect P2L and P2L/P2G hybrid processes were also able to be considered as suitable technologies for the transformation of CO2 into high-value hydrocarbons, and the indirect P2L/P2G hybrid process seemed to be more competitive than the indirect P2L process from both technical and economic aspects. Moreover, compared to the direct P2L and P2L/P2G hybrid processes, the indirect P2L and P2L/P2G hybrid processes produce more syncrude, however, they are less efficient in aspects of energy efficiency and net CO2 reduction.

源语言英语
文章编号120111
期刊Fuel
291
DOI
出版状态已出版 - 1 5月 2021

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