|Table of Contents|

Separation of CO2 from Gas Mixture in Membrane Contactor

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2005年04期
Page:
491-494
Research Field:
Publishing date:

Info

Title:
Separation of CO2 from Gas Mixture in Membrane Contactor
Author(s):
LU Jian-gangMA JunWANG Lian-jun
School of Chemical Engineering, NUST, Nanjing, 210094, China
Keywords:
gas-liquid membrane contactor methyldiethanolamine 2- amino- 2- methyl- 1- propanol CO2 mass-transfer model
PACS:
X701
DOI:
-
Abstract:
The experimental setup for absorption of CO2 with membrane contactor as absorber was established. The absorbents composed of methyldiethanolamine(MDEA) aqueous solution or MDEA+ AMP ( 2- amino- 2- methyl- 1- propanol) aqueous solution were ho-t regenerated in a regenerator and were used continually and circularly in the setup. Mass-transfer performances of absorption of CO2 in PP microporous hollow fiber membrane contactor were studied. Mass transfer model was presented and predict ion value and experimental valuewere compared. The results demonstrate that, under the condit ions of 2. 5 mol/ L amine, the gas flow-rate range of 0. 5~ 3. 0 L/min and the liquid flow-rate range of 15~ 150 mL/min, the overall mass transfer coefficients K ov of CO2 absorpt ion are about 10~ 32 Lm/ s for MDEA and 20~ 45 Lm/ s for MDEA+ AMP. Prediction value is in better agreement with experimental value, and error is less than 10 % forMDEA and maximal error 19 % for MDEA+ AMP. Meanwhile, the experimental result concludes that the mass transfer performance of absorpt ion of CO2 into MDEA+ AMP is superior to that of MDEA.

References:

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Last Update: 2013-03-03