An Improved Adsorption–Catalytic Process for Removing Volatile Organic Compounds from Exhaust Gases
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Catalysis in Industry
ISSN: 2070-0504
, E-ISSN: 2070-0555
|
| Output data |
Year: 2016,
Volume: 8,
Number: 3,
Pages: 231-241
Pages count
: 11
DOI:
10.1134/S2070050416030144
|
| Tags |
adsorption–catalytic process, catalyst, degree of purification, energy expenditures, experimental studies, mathematical modeling, volatile organic compounds |
| Authors |
Zazhigalov S.V.
1,2
,
Mikenin P.E.
1,2
,
Lopatin S.A.
1,2
,
Baranov D.V.
1,2,3
,
Pisarev D.A.
1,2
,
Chumakova N.A.
1,2
,
Zagoruiko A.N.
1,2,3,4
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
|
| 2 |
Novosibirsk State University, Novosibirsk, 630090 Russia
|
| 3 |
Novosibirsk State Technical University, Novosibirsk, 630073 Russia
|
| 4 |
Tomsk Polytechnic University, Tomsk, 634034 Russia
|
|
Funding (1)
|
1
|
Novosibirsk State University
|
|
New methods are developed for conducting adsorption–catalytic processes to remove volatile
organic compounds (VOCs) from exhaust gases at industrial enterprises. New flowsheets are proposed for
these processes, in particular a system with localized heating of a part of the catalyst bed to initiate the combustion
of adsorbed VOCs, and a system separating a full adsorption–catalytic bed into parallel sections with
nonsimultaneous regeneration. Studies combine pilot-scale experiments and mathematical modeling. The
flowsheet, in which the initiating heater is located directly in the catalytic adsorbent bed considerably reduces
(by at least two orders of magnitude) the energy expenditures on regeneration, both in terms of specific energy
consumption for purifying a unit volume of exhaust gases and in terms of the power required for the heater.
Separating the bed into several sections allows a severalfold reduction in the maximum concentrations of pollutants
and the gas temperature at the outlet of the adsorption–catalytic system during its operation. The proposed
methods are characterized by high efficiency of gas purification and low energy consumption, so they
can be widely used in protecting the atmosphere against VOC emissions.