2026-09-20T11:35:23Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1449802022-08-30T03:44:32Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Varanasi, Kripa K.
Rufer, Simon B.
Massachusetts Institute of Technology. Department of Mechanical Engineering
2022-08-29T16:25:04Z
2022-08-29T16:25:04Z
2022-05
2022-06-23T14:10:30.335Z
https://hdl.handle.net/1721.1/144980
0000-0003-1274-8502
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.
Massachusetts Institute of Technology
In Copyright - Educational Use Permitted
Copyright MIT
http://rightsstatements.org/page/InC-EDU/1.0/
Technoeconomic Analysis and Design of CO₂ Capture and Conversion Systems
Thesis
application/pdf
Master
Master of Science in Mechanical Engineering
Publication
unknown
unknown
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<Abstract>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.</Abstract>
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