Title:
METHOD FOR PRODUCING METHANE FROM CO2 IN CEMENT PRODUCTION EXHAUST GAS, AND METHANATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/246318
Kind Code:
A1
Abstract:
In the production of methane from an exhaust gas from a cement production facility, an acidic component such as SOx, NOx and a halogen and a harmful component such as H2O and dust are removed from the exhaust gas, and the exhaust gas from which the acidic component and the harmful component have been removed is brought into contact with a CO2 absorbent material to separate and collect CO2. In this manner, the deterioration in the absorption capability of the CO2 absorbent material can be prevented and the cement production exhaust gas can be treated properly to produce methane properly. As a result, energy-induced CO2 can be reduced and the greenhouse gas emission reduction effect can be improved.
Inventors:
TAKAYAMA YOSHINORI (JP)
KAWASAKI HAJIME (JP)
KOMA TAKUMA (JP)
KOMATSU TAKUYA (JP)
KAWASAKI HAJIME (JP)
KOMA TAKUMA (JP)
KOMATSU TAKUYA (JP)
Application Number:
PCT/JP2021/020406
Publication Date:
December 09, 2021
Filing Date:
May 28, 2021
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
C07C1/12; B01D53/14; B01D53/50; B01D53/56; B01D53/62; B01D53/68; B01D53/78; C01B32/50; C04B7/44; C07B61/00; C07C9/04; C10L3/08; F27D17/00
Domestic Patent References:
| WO2015055349A1 | 2015-04-23 |
Foreign References:
| JPH10185170A | 1998-07-14 | |||
| JP2019172595A | 2019-10-10 | |||
| JP2015030653A | 2015-02-16 | |||
| JP2018052746A | 2018-04-05 |
Other References:
BAIER JENS, SCHNEIDER GABRIEL, HEEL ANDRE: "A Cost Estimation for CO2 Reduction and Reuse by Methanation from Cement Industry Sources in Switzerland", FRONTIERS IN ENERGY RESEARCH, vol. 6, 28 February 2018 (2018-02-28), pages 1 - 9, XP055843333, DOI: 10.3389/fenrg.2018.00005
Attorney, Agent or Firm:
AOYAMA, Masakazu (JP)
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