2019 Fiscal Year Final Research Report

Improvement of fuel combustion in regenerator of Calcium-Looping CO2 separation process

Research Project

Project/Area Number	17K06914
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Catalyst/Resource chemical process
Research Institution	Niigata University
Principal Investigator	Shimizu Tadaaki 新潟大学, 自然科学系, 教授 (10211286)
Project Period (FY)	2017-04-01 – 2020-03-31
Keywords	二酸化炭素分離 / 流動層
Outline of Final Research Achievements	A novel CO2 separation process using calcium oxide was proposed. Small-scale models were operated to prove this concept. Especially, tar capture by calcium sorbent was stidied to simulate the regenerator. The effects of temperature and the ratio of sorbent to fuel were evaluated. Optimum temperature for tar capture was determined. The influence of the ratio of sorbent to fuel on the tar capture was only minor under practical operation range.
Free Research Field	プロセス工学
Academic Significance and Societal Importance of the Research Achievements	このプロセスは、低エネルギー損失で排ガスから二酸化炭素を分離するプロセスであり、このプロセスが実現すれば大気への二酸化炭素放出を削減でき地球温暖化を防止できることが期待される。この研究が特に主眼とすることは、安定運転のための具体的な方法としての、燃料供給法の提案である。この研究の成果により、この装置を安定して運転するための方針が得られた。