A Sustainable Chemicals Manufacturing Paradigm Using CO2 and Renewable H2
| Autor: | Nigel P. Minton, Nicole Pearcy, Rajesh Reddy Bommareddy, Yanming Wang, Alex Conradie, Edward Lester, Martin Hayes |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Sustainable development Multidisciplinary business.industry Commodity chemicals 02 engineering and technology Chemical industry Raw material Chemical Engineering 021001 nanoscience & nanotechnology Supercritical fluid Renewable energy 03 medical and health sciences 030104 developmental biology Process Engineering Metabolic Engineering Process integration Environmental science lcsh:Q 0210 nano-technology Process engineering business lcsh:Science Efficient energy use |
| Zdroj: | iScience, Vol 23, Iss 6, Pp 101218-(2020) |
| ISSN: | 2589-0042 |
| Popis: | Summary: The chemical industry must decarbonize to align with UN Sustainable Development Goals. A shift toward circular economies makes CO2 an attractive feedstock for producing chemicals, provided renewable H2 is available through technologies such as supercritical water (scH2O) gasification. Furthermore, high carbon and energy efficiency is paramount to favorable techno-economics, which poses a challenge to chemo-catalysis. This study demonstrates continuous gas fermentation of CO2 and H2 by the cell factory, Cupriavidus necator, to (R,R)-2,3-butanediol and isopropanol as case studies. Although a high carbon efficiency of 0.75 [(C-mol product)/(C-mol CO2)] is exemplified, the poor energy efficiency of biological CO2 fixation requires ∼8 [(mol H2)/(mol CO2)], which is techno-economically infeasible for producing commodity chemicals. Heat integration between exothermic gas fermentation and endothermic scH2O gasification overcomes this energy inefficiency. This study unlocks the promise of sustainable manufacturing using renewable feedstocks by combining the carbon efficiency of bio-catalysis with energy efficiency enforced through process engineering. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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