Title:
METHOD FOR ACTIVATING CO2 IN EXHAUST GAS FROM CEMENT PRODUCTION, AND CO2 ACTIVATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/246313
Kind Code:
A1
Abstract:
According to the present invention: hydrogen is added to CO2 in exhaust gas discharged from a cement production facility, or to CO2 that has been separated and recovered from said exhaust gas, to generate methane; the methane is used as alternative fuel to fossil fuels such as coal, petroleum, and natural gas; and by converting the CO2 in exhaust gas from a cement production facility, which includes large quantities of exhaust gas originating from limestone rather than fossil fuels, to methane and effectively utilizing the methane, the use of fossil fuels can be reduced, energy-derived CO2 can be reduced, and reduction of greenhouse gases can be enhanced.
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/JP2021/020401
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 | |||
| JP2020097644A | 2020-06-25 | |||
| JP2020097645A | 2020-06-25 | |||
| JP2019172595A | 2019-10-10 |
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
See also references of EP 4166527A4
See also references of EP 4166527A4
Attorney, Agent or Firm:
AOYAMA, Masakazu (JP)
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