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Cover Chem. Eng. Technol. 2/2015
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201590000
Subject(s) - process engineering , scrubber , bubble , mass transfer , mass transfer coefficient , absorption (acoustics) , carbon capture and storage (timeline) , chemistry , desorption , efficient energy use , waste management , environmental science , chemical engineering , nuclear engineering , materials science , computer science , adsorption , chromatography , engineering , composite material , ecology , organic chemistry , climate change , biology , electrical engineering , parallel computing
CO 2 Capture in a Bubble‐Column Scrubber Bubble columns are widely used in industry, such as on operations of reaction, fermentation, crystallization, desorption, and absorption. They can be operated in batch, continuously, or in semi‐batch, as well as in two or three phases. With the advantages of easy operation, simple structure, high mass transfer efficiency, high absorption factor, and low energy consumption, bubble columns have attracted wide attention in the industry. In recent years, as the carbon dioxide capture, storage, and regeneration are urgent issues, CCS and CCU have been used as the key point to solve greenhouse effect. This plays a great role in CO 2 capture and storage in thermal power plants, in which the CCS capture and regeneration account for 70 % of the power generation cost. How to achieve effective capture and regeneration has become a topical subject in the energy saving and carbon reduction. Among various technologies of CO 2 capture, absorption is the most mature, and MEA is used most widely. Although the capture of acid gases is still dominated by filling towers, many recent studies have confirmed the advantages of bubble towers that prevail over filling towers or other appliances. Thus, bubble columns have been adopted as the absorber and MEA as the absorbent for the new attempt of CO 2 capture. The operation variables include CO 2 concentration, pH, temperature, air flow rate, available gas‐liquid flow rate ratio, absorption efficiency, absorption velocity, overall mass transfer coefficient, and absorption factor, which are the important parameters for the design and operation of absorber. This study adopts the Taguchi experiment design to obtain the priority of parameter type and the optimal parameters of bubble towers for CO 2 capture, so as to achieve energy saving and carbon reduction. DOI: 10.1002/ceat.201400240 CO 2 Capture Using Monoethanolamine in a Bubble‐Column Scrubber Pao‐Chi Chen*, Yi Xin Luo, Pao Wein Cai Chem. Eng. Technol. 2015 , 38 (2) , 274–282.