Concentration and recovery of CO[sub 2] from flue gas by pressure swing adsorption

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00023a038· OSTI ID:5741836

Kikkinides, E S; Yang, R T ^[1]; Cho, S H ^[2]

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1. State Univ. of New York, Buffalo, NY (United States). Dept. of Chemical Engineering
2. Korea Inst. of Energy Research, Taejon (Korea, Republic of)

The feasibility of recovering CO[sub 2] from flue gas to generate a high-purity product by pressure swing adsorption (PSA) is studied by simulation using a proven predictive PSA model. Two promising sorbents, activated carbon and carbon molecular sieve, are examined. A nonconventional PSA cycle is designed for this purpose. With activated carbon as the sorbent, CO[sub 2] can be concentrated from 17% in the flue gas to a product of 99.997% (at a CO[sub 2] recovery of 68.4% and at a reasonably high feed throughput). Despite the favorable kinetic selectivity for CO[sub 2] in the carbon molecular sieve, separation results using this sorbent are not as good, because the kinetic selectivity (of CO[sub 2]/N[sub 2]) is not high enough and consequently the equilibrium selectivity dominates the separation.

• OSTI ID: 5741836
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 32:11; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

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20 FOSSIL-FUELED POWER PLANTS
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ACTIVATED CARBON
ADSORBENTS
ADSORPTION
CARBON
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CLEANING
ELEMENTS
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NONMETALS
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OXYGEN COMPOUNDS
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WASTE PROCESSING
WASTES