2022 Fiscal Year Research-status Report
Development of Alkyl-Functionalized New Polyamine Based Non-Aqueous Solvent for Energy Efficient CO2 Capture
| Project/Area Number |
20K05596
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| Research Institution | Research Institute of Innovative Technology for the Earth |
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Principal Investigator |
フィローズアラム チョウドリ 公益財団法人地球環境産業技術研究機構, その他部局等, 主任研究員 (50727279)
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Keywords | Non-Aqueous Solvent / Polyamine / Absorption Rate / Absorption Capacity / Heats of Reaction |
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| Outline of Annual Research Achievements |
This project, new isopropyl-functionalized polyamine (IPFPA) based non-aqueous solvent (NAS) was developed for the recovery of CO2 from post-combustion flue gases that will achieve a significant increase in CO2 capture performances with a reduction of solvent regeneration energy. A total of 10 new (Generation II) IPFPA(s) was synthesized with high purity (>98%) and excellent yield (>96%) during this project. The NAS system was made by mixing IPFPA as absorbent and commercially available alcohol/non-alcohol as solvent. Last year the optimization of all synthesized polyamine completed. This year 5 alcohol solvents and 5 non-alcohol solvents screening experiments was completed with the best IPFPA performer. Isopropyl functionalized polyamine IP-DMDPTA was identified as best polyamine and 1-methylimidazole (1MIm) was identified as best organic solvent. (IP-DMDPTA+1MIm) based NAS was optimized, thoroughly measuring all relevant properties, and identified their best composition which give high CO2 absorption rate, high cyclic amount of CO2, and consume the minimal amount of heat energy.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
The applicant completed (IP-DMDPTA+1MIm) based NAS the composition optimization thoroughly measuring all relevant properties, and identified their best composition which give high CO2 absorption rate, high cyclic amount of CO2, and consume the minimal amount of heat energy compared to benchmark monoethanolamine (MEA). Now efforts are given the bulk scale synthesis of IP-TMDPTA to perform vapor-liquid equilibrium (VLE) experiment under equilibrium condition at different temperature and pressure in order to obtain maximum working capacity. These findings were submitted as a Japanese patent application and presented in two international conferences.
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| Strategy for Future Research Activity |
Finalize (IP-DMDPTA+1MIm) based NAS vapor-liquid equilibrium (VLE) experiment under equilibrium condition at different temperature and pressure in order to obtain maximum the working capacity. 13C NMR spectroscopic technique will be used to analyze (IP-DMDPTA+1MIm) based NAS CO2-loaded solutions species identification. Finally conduct bench-scale test, finalize systems and economic analyses, and develop a path forward for bench-scale and pilot-plant testing.
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| Causes of Carryover |
The outsourcing chemicals price is higher than the remaining fund. As a result, the relevant chemicals purchase for IP-DMDPTA synthesis was delayed. The bulk scale (kg level) IP-DMDPTA synthesis specific chemicals will be purchasing this FY by adjusting the remaining fund.
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Research Products
(3 results)
