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题名: Mass transfer characteristics of H2S absorption from gaseous mixture into methyldiethanolamine solution in a T-junction microchannel
作者: 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
发表日期: 2010-05-11
DOI: 10.1016/j.seppur.2010.02.024
卷: 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
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.
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
语种: 英语
WOS记录号: WOS:000277662200014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142181
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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

Recommended Citation:
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.
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