Absorption of Carbon Dioxide in Aqueous Solutions of N-methyldiethanolamine Mixtures

3rd International Conference on Global Sustainability and Chemical Engineering

工业技术;化学工业

Ma'Mun, S.^1,2 ; Svendsen, H.F.^2

Department of Chemical Engineering, Universitas Islam Indonesia, Jl. Kaliurang Km. 14.5, Yogyakarta

55501, Indonesia^1

Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim

N-7491, Norway^2

关键词: Coal-fired power plant;    Effect of promoters;    Global warming problems;    Greenhouse gases (GHG);    Iron and steel productions;    N-methyldiethanolamine;    Petrochemical industry;    Post-combustion captures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/358/1/012011/pdf
DOI  :  10.1088/1757-899X/358/1/012011

学科分类：工业工程学

来源: IOP

【 摘 要 】

Carbon dioxide (CO2) is one of the greenhouse gases (GHG) that has contributed to the global warming problem. Carbon dioxide is produced in large quantity from coal-fired power plants, iron and steel production, cement production, chemical and petrochemical industries, natural gas purification, and transportation. Some efforts to reduce the CO2 emissions to the atmosphere are then required. Amine-based absorption may be an option for post-combustion capture. The objective of this study is to measure the effect of promoter addition as well as MDEA concentration for the CO2 absorption into the aqueous solutions of MDEA to improve its performances, i.e. increasing the absorption rate and the absorption capacity. Absorption of CO2 in aqueous solutions of MDEA mixtures were measured at 40 °C in a bubble tank reactor. The systems tested were the mixtures of 30 wt% MDEA with 5 and 10 wt% BEA and the mixtures of 40 and 50 wt% MDEA with 6 wt% AEEA. It was found that for MDEA-BEA-H2O mixtures, the higher the promoter concentraation the higher the CO2 absorption rate, while for the MDEA-AEEA-H2O mixtures, the higher the MDEA concentration the lower the CO2 absorption rate.