Technoeconomic Analysis and Design of CO₂ Capture and Conversion Systems
Carbon capture and conversion technologies must become economically viable and scale to the gigaton level by 2050 to avoid the most serious effects of a climate crisis. Here we present a techno-economic analysis of two promising capture and conversion technologies: CO₂ capture from ocean waters via...
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| Format: | Thesis |
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Massachusetts Institute of Technology
2022
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| Online Access: | https://hdl.handle.net/1721.1/144980 |
| _version_ | 1826198465717207040 |
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| author | Rufer, Simon B. |
| author2 | Varanasi, Kripa K. |
| author_facet | Varanasi, Kripa K. Rufer, Simon B. |
| author_sort | Rufer, Simon B. |
| collection | MIT |
| description | Carbon capture and conversion technologies must become economically viable and scale to the gigaton level by 2050 to avoid the most serious effects of a climate crisis. Here we present a techno-economic analysis of two promising capture and conversion technologies: CO₂ capture from ocean waters via electrochemical pH swing and electrochemical conversion of CO₂ into valuable chemicals. We identify cost drivers of the proposed direct ocean capture process and suggest future work to reduce costs and technological risks. Finally, we examine the sensitivities of the cost of CO₂ conversion with regards to the design of electrode gas diffusion layers. We design and construct a CO₂ conversion reactor for testing of next generation gas diffusion layers. Strong baseline performance of the reactor is validated with a 47% Faradaic Efficiency towards C₂H₄ at 200mA/cm². |
| first_indexed | 2024-09-23T11:05:23Z |
| format | Thesis |
| id | mit-1721.1/144980 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T11:05:23Z |
| publishDate | 2022 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1449802022-08-30T03:44:32Z Technoeconomic Analysis and Design of CO₂ Capture and Conversion Systems Rufer, Simon B. Varanasi, Kripa K. Massachusetts Institute of Technology. Department of Mechanical Engineering Carbon capture and conversion technologies must become economically viable and scale to the gigaton level by 2050 to avoid the most serious effects of a climate crisis. Here we present a techno-economic analysis of two promising capture and conversion technologies: CO₂ capture from ocean waters via electrochemical pH swing and electrochemical conversion of CO₂ into valuable chemicals. We identify cost drivers of the proposed direct ocean capture process and suggest future work to reduce costs and technological risks. Finally, we examine the sensitivities of the cost of CO₂ conversion with regards to the design of electrode gas diffusion layers. We design and construct a CO₂ conversion reactor for testing of next generation gas diffusion layers. Strong baseline performance of the reactor is validated with a 47% Faradaic Efficiency towards C₂H₄ at 200mA/cm². S.M. 2022-08-29T16:25:04Z 2022-08-29T16:25:04Z 2022-05 2022-06-23T14:10:30.335Z Thesis https://hdl.handle.net/1721.1/144980 0000-0003-1274-8502 In Copyright - Educational Use Permitted Copyright MIT http://rightsstatements.org/page/InC-EDU/1.0/ application/pdf Massachusetts Institute of Technology |
| spellingShingle | Rufer, Simon B. Technoeconomic Analysis and Design of CO₂ Capture and Conversion Systems |
| title | Technoeconomic Analysis and Design of CO₂ Capture and Conversion Systems |
| title_full | Technoeconomic Analysis and Design of CO₂ Capture and Conversion Systems |
| title_fullStr | Technoeconomic Analysis and Design of CO₂ Capture and Conversion Systems |
| title_full_unstemmed | Technoeconomic Analysis and Design of CO₂ Capture and Conversion Systems |
| title_short | Technoeconomic Analysis and Design of CO₂ Capture and Conversion Systems |
| title_sort | technoeconomic analysis and design of co₂ capture and conversion systems |
| url | https://hdl.handle.net/1721.1/144980 |
| work_keys_str_mv | AT rufersimonb technoeconomicanalysisanddesignofco2captureandconversionsystems |