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Mass transfer characteristics of H2S absorption from gaseous mixture into methyldiethanolamine solution in a T-junction microchannel
Su, Hongjiu1,2; Wang, Shudong1; Niu, Haining1; Pan, Liwei1; Wang, Anjie2; Hu, Yongkang2
关键词Absorption Microreactor Mass Transfer Process Intensification Interfacial Area
刊名SEPARATION AND PURIFICATION TECHNOLOGY
2010-05-11
DOI10.1016/j.seppur.2010.02.024
72期:3页:326-334
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical
研究领域[WOS]Engineering
关键词[WOS]COCURRENT 2-PHASE FLOW ; AQUEOUS BLENDED AMINES ; GAS-LIQUID FLOW ; STRUCTURED PACKING ; HYDROGEN-SULFIDE ; CARBON-DIOXIDE ; SELECTIVE ABSORPTION ; CAPILLARIES ; SOLUBILITY ; BUBBLES
英文摘要In this work, the mass transfer characteristics of absorption of H2S (1200 ppmv) into 40 wt% methyldiethanolamine (MDEA) solution have been investigated experimentally in a horizontal cross-flow T-junction microchannel with a diameter of 1.00 mm. The interfacial area was determined by the absorption of CO2 into NaOH solution. It was found that the high removal efficiency of H2S (up to 99.5%) was achieved in the microchannel. Mass transfer resistance existed mainly on the gas side in this absorption process. It was shown that the gas side volumetric mass transfer coefficient and interfacial area were as high as 31,746 mol/(m(3) s atm) and 11,100 m(2)/m(3), respectively. In addition, a comparison of mass transfer performance among different gas-liquid contactors was performed. It was revealed that the T-junction microchannel in this study could provide at least one or two orders of magnitude higher gas side volumetric mass transfer coefficient than others. However, the intensification of mass transfer process was mainly ascribed to the enhancement of interfacial area rather than the gas side mass transfer coefficient. Empirical correlations based on the experimental data were developed to predict gas side mass transfer coefficient and interfacial area. Published by Elsevier B.V.
语种英语
WOS记录号WOS:000277662200014
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142181
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China
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Su, Hongjiu,Wang, Shudong,Niu, Haining,et al. Mass transfer characteristics of H2S absorption from gaseous mixture into methyldiethanolamine solution in a T-junction microchannel[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2010,72(3):326-334.
APA Su, Hongjiu,Wang, Shudong,Niu, Haining,Pan, Liwei,Wang, Anjie,&Hu, Yongkang.(2010).Mass transfer characteristics of H2S absorption from gaseous mixture into methyldiethanolamine solution in a T-junction microchannel.SEPARATION AND PURIFICATION TECHNOLOGY,72(3),326-334.
MLA Su, Hongjiu,et al."Mass transfer characteristics of H2S absorption from gaseous mixture into methyldiethanolamine solution in a T-junction microchannel".SEPARATION AND PURIFICATION TECHNOLOGY 72.3(2010):326-334.
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