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BULK SEPARATION AND PURIFICATION OF CH4/CO2 MIXTURES ON 4A/13X MOLECULAR-SIEVES BY USING PRESSURE SWING ADSORPTION

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Title BULK SEPARATION AND PURIFICATION OF CH4/CO2 MIXTURES ON 4A/13X MOLECULAR-SIEVES BY USING PRESSURE SWING ADSORPTION
 
Creator VYAS, SN
PATWARDHAN, SR
GUPTA, I
BURRA, V
 
Description Results of bulk gas separation and purification of a CH4/CO2 mixture by pressure swing adsorption (PSA) are reported. Bulk gas separation and purification of CH4/CO2 mixture have direct application in landfill gases and tertiary oil recovery and effluent separations. ZMS-13X/4A with calculated kinetic selectivities equal to 0.604 and 0.601, respectively, were used as sorbents. The step times corresponding to various flow rates and compositions were chosen to allow sorption of CO2 but preclude penetration of CH4 into the micropores. By using a simulated biogas mixture (66% CH4 and 34% CO2) as a feed, the results for bulk gas separation for a PSA cycle between 1.2-36.0 P(H)/P(L) ratios over ZMS-13X adsorbent was 95% or more CH4 in the raffinate, whereas with a 10/90 CH4/CO2 feed, purification over ZMS-4A at P(H)/P(L) ratios of 10-304 gave 85-90% CH4 at 900 and 1800 mL/min flow rates.
 
Publisher MARCEL DEKKER INC
 
Date 2011-08-18T08:00:48Z
2011-12-26T12:55:38Z
2011-12-27T05:41:41Z
2011-08-18T08:00:48Z
2011-12-26T12:55:38Z
2011-12-27T05:41:41Z
1991
 
Type Article
 
Identifier SEPARATION SCIENCE AND TECHNOLOGY, 26(10-11), 1419-1431
0149-6395
http://dx.doi.org/10.1080/01496399108050541
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9935
http://hdl.handle.net/10054/9935
 
Language en