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Transformation of CO2 into liquid fuels and synthetic natural gas using green hydrogen: A comparative analysis
- Source :
- Fuel. 291:120111
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- 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.
- Subjects :
- Substitute natural gas
Process modeling
Hydrogen
business.industry
Process (engineering)
020209 energy
General Chemical Engineering
Organic Chemistry
Energy Engineering and Power Technology
chemistry.chemical_element
02 engineering and technology
Renewable energy
Fuel Technology
Transformation (function)
020401 chemical engineering
chemistry
0202 electrical engineering, electronic engineering, information engineering
Environmental science
0204 chemical engineering
Process engineering
business
Efficient energy use
Subjects
Details
- ISSN :
- 00162361
- Volume :
- 291
- Database :
- OpenAIRE
- Journal :
- Fuel
- Accession number :
- edsair.doi...........5f5c281670b66789c8b2e3aba8fdb483