Characteristics of Absorption/Regeneration of AMP/MEA Using Hybrid Packing for the Improvement of CO2 Absorption Performance

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• 作者：Min-Kyoung Kang ; In-Deuk Kim ; Bong-Jun Kim ; Ji-Soon Kang ; Kwang-Joong Oh
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2015
• 出版时间：June 10, 2015
• 年：2015
• 卷：54
• 期：22
• 页码：5853-5861
• 全文大小：437K
• ISSN：1520-5045

文摘

The development of new packing materials and absorbents for use in CO₂ recovery is urgently needed as a means of reducing greenhouse gases. In this study, we evaluated the absorbents 2-amino-2-methyl-1-propanol (AMP) and monoethanolamine (MEA) in combination with random packing materials (ceramic Raschig rings and Berl saddles) and a structured gauze packing material. To improve the CO₂ absorption efficiency, we developed hybrid packing materials comprising Raschig rings and the structured packing material in various ratios. The effects of the ratio on the gas flow rate, absorbent liquid flow rate, and CO₂ absorption/regeneration efficiencies over time were evaluated. The overall mass-transfer coefficients were also calculated. The height of the tower corresponding to one theoretical plate in the absorptive tower design and the available gas鈥搇iquid contact area were calculated. This fundamental research will help support efforts to improve the efficiency of CO₂ absorption from various industrial exhaust streams.