2015 Fiscal Year Research-status Report
Development of Amino-Functionalized New Task Specific Ionic Liquids for Energy Efficient CO2 Capture
| Project/Area Number |
26410202
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| Research Institution | Research Institute of Innovative Technology for the Earth |
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Principal Investigator |
フィーローズアラム 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, 研究員 (50727279)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 環境修復材料 / CO2 capture |
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| Outline of Annual Research Achievements |
This project, we developed novel amine-based new task specific ionic liquids (TSILs) for the recovery of CO2 from post-combustion flue gases that will achieve a significant increase in CO2 working capacity with a reduction in cost. The novel TSIL absorbents are neutral molecules which react with CO2 to form an ionic liquid, and subsequently modest elevations in temperature reverse the reaction and yield pure CO2 for disposal. Completed all designed TSILs synthesis and now we are optimizing absorbent, thoroughly measuring all relevant properties, and identify high performance TSILs that will give higher absorption rate, high cyclic capacity and consume the minimal amount of energy. For energy efficient CO2 capture, we are incorporating hindered alkyl substituents in the TSILs that can tune reaction mode, which is bicarbonate (HCO3-) or alkyl carbonate (RCO3-) anion formation> cabamate anion (COO-) and by increasing amino groups into TSILs we substantially increased CO2 loading and cyclic capacity. Three medium hindered amino-functionalized ionic liquids with excellent CO2 performance were identified.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
The applicant performed gas scrubbing tests with amino-functionalized synthetic TSILs by changing their concentrations, temperatures, and pressures. CO2 capture performances of such 18 sets of single ILs plus 12 sets of blended solvent (ILs + Non-aqueous solvent) and (ILs + Non-aqueous solvent + water) was completed. From the results of screening tests, the applicant identified three high performance TSILs with high absorption rate, high cyclic CO2 capacity and consume the minimal amount of energy. These findings were presented in one international conference and two national conferences.
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| Strategy for Future Research Activity |
Finalize the optimal ionic liquid(s), perform VLE test under equilibrium condition at different temperature and pressure in order to obtain maximum working capacity. 13C NMR spectroscopy will be used to analyze the CO2-loaded solution 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 then the remaining fund. As a result the chemicals purchase was delayed. The specific chemicals will purchase this FY by adjusting the remaining fund.
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| Expenditure Plan for Carryover Budget |
Last year remaining fund will adjust with this year fund to purchase chemicals, CO2 and N2 gases, laboratory glassware, books, Journals reprints, domistic and foreign conferences.
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