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oai:figshare.com:article/34018149 2026-09-28T18:08:12Z category_1 category_272 category_873 category_45 category_734 category_106 portal_63 item_type_6 month_year_09_2026

Whole-Process Integration and Economic Analysis of Postcombustion CO₂ Capture with PZ-MDEA: From Experimental Validation to Industrial Application Minghui Wu (633770) Yumeng Wang (5638064) Guanjun Chen (3736726) Bo Jin (169366) Zhiwu Liang (1452787) Hongxia Gao (3608918) Biophysics Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified Sociology Biological Sciences not elsewhere classified Science Policy regeneration energy consumption reboiler heat duty mechanical vapor recompression standard operating conditions mvr configuration integrated three process configurations mvr process configuration mdea solution delivers 2 </ sub standard configuration process configurations mvr ). mixed solution process performance process integration results indicate experimental validation economic analysis approximately 27 83 $/ 73 gj 69 $/ 62 gj 30 wt 20 wt 14 gj Studying different absorbents and process configurations is crucial for the process performance of postcombustion CO₂ capture, which can reduce the regeneration energy consumption of the stripper and improve the economics of the process. In this study, postcombustion CO₂ capture processes using 30 wt % MEA and 20 wt % PZ+20 wt % MDEA as absorbents were established and investigated. Then, 30 wt % MEA and a mixed solution of 20 wt % PZ + 20 wt % MDEA were used as absorbents. Three process configurations were simulated, including the standard configuration, the AIC-SSF configuration combining interstage cooling (AIC) and split rich solvent flow (SSF), and the AIC-SSF-MVR configuration integrated with mechanical vapor recompression (MVR). The results indicate that, under standard operating conditions, the 20 wt % PZ + 20 wt % MDEA mixed amine exhibits a reboiler heat duty of 2.73 GJ/t CO₂, which is 24.6% lower than that of the standard MEA baseline condition (3.62 GJ/t CO₂). When adopting the AIC-SSF-MVR process configuration, the minimum regeneration energy consumption is further lowered to 2.14 GJ/t CO₂, which is 40.9% less than that of the standard MEA operating condition. Economic analysis via APEA shows that the AIC-SSF-MVR process configuration using a 40 wt % PZ-MDEA solution delivers the lowest CO₂ capture cost of 53.83 $/t CO₂. This value is approximately 27.9% lower relative to the standard MEA operating conditions (74.69 $/t CO₂). 2026-09-28T00:00:00Z Text Journal contribution 10.1021/acs.iecr.6c01064.s001 https://figshare.com/articles/journal_contribution/Whole-Process_Integration_and_Economic_Analysis_of_Postcombustion_CO_sub_2_sub_Capture_with_PZ-MDEA_From_Experimental_Validation_to_Industrial_Application/34018149 CC BY-NC 4.0