Title:
METHOD FOR UTILIZING CO2 IN CEMENT PRODUCTION EXHAUST GAS, AND CO2 UTILIZATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/246314
Kind Code:
A1
Abstract:
According to the present invention, methane is produced by adding hydrogen to CO2 in the exhaust gas discharged from a cement production facility, or to CO2 separated and recovered from the exhaust gas, and the methane is used as an alternative fuel for some or the entirety of fossil fuel supplied to the cement production facility. By methanizing and effectively utilizing CO2 in a cement exhaust gas that contains much exhaust gas derived from limestone instead of fossil fuel, use of fossil fuels such as coals, petroleum and natural gases is able to be reduced, thereby enabling the reduction of CO2 of energy origin as well as the enhancement of the greenhouse gas reduction effect.
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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/JP2021/020402
Publication Date:
December 09, 2021
Filing Date:
May 28, 2021
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
C07C1/12; B01D53/14; B01D53/62; C01B32/50; C04B7/44; C07B61/00; C07C9/04; C10L3/08; F27D17/00
Domestic Patent References:
| WO2015055349A1 | 2015-04-23 |
Foreign References:
| JP2015030653A | 2015-02-16 | |||
| JP2019172595A | 2019-10-10 | |||
| JP2018052746A | 2018-04-05 | |||
| JPH10185170A | 1998-07-14 |
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, no. 5, 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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