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Modeling of the Multidispersed Adsorption–Catalytic System for Removing Organic Impurities from Waste Gases Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Chemical Engineering Science
ISSN: 0009-2509 , E-ISSN: 1873-4405
Output data Year: 2012, Volume: 76, Pages: 81-89 Pages count : 9 DOI: 10.1016/j.ces.2012.04.015
Tags Adsorption-catalytic process, Combustion, Dynamic simulation, Heat transfer, Packed bed, Reaction engineering
Authors Zazhigalov S.V. 1,2 , Chumakova N.A. 1,2 , Zagoruiko A.N. 1
Affiliations
1 Boreskov Institute of Catalysis SB RAS, Pr. Akad. Lavrentieva 5, Novosibirsk 630090, Russia
2 Novosibirsk State University, Pirogova Street 2, Novosibirsk 630090, Russia

Abstract: This paper considers a new approach of improving the efficiency of adsorption–catalytic removal of volatile organic compounds (VOCs) from waste gases based on the use of a combined structured fixed bed consisting of a coarse-grained adsorbent–catalyst and a microfiber catalyst. Numerical mathematical modeling showed that during high-temperature oxidative regeneration of the adsorbent–catalyst, the microfiber catalyst (∼0.01 mm in diameter) is heated much faster than large pellets (∼2–20 mm in diameter) of the adsorbent–catalyst due to the significantly higher external specific surface area (∼500–5000 times greater). This allows one to efficiently oxidize unoxidized VOCs desorbed from the surface of the adsorbent–catalyst, thus minimizing the desorption losses and significantly increasing the degree of gas purification (up to 99%).
Cite: Zazhigalov S.V. , Chumakova N.A. , Zagoruiko A.N.
Modeling of the Multidispersed Adsorption–Catalytic System for Removing Organic Impurities from Waste Gases
Chemical Engineering Science. 2012. V.76. P.81-89. DOI: 10.1016/j.ces.2012.04.015 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Feb 7, 2012
Accepted: Apr 11, 2012
Published online: Apr 20, 2012
Published print: Jul 1, 2012
Identifiers:
publication_identifier.wos_identifier_type WOS:000304368900011
publication_identifier.scopus_identifier_type 2-s2.0-84860337676
publication_identifier.rinz_identifier_type 17983826
publication_identifier.accession_number_identifier_type 2012:769239
publication_identifier.chemical_accession_number_identifier_type 156:674228
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