Title:
METHOD FOR UTILIZING CO2 IN CEMENT PRODUCTION EXHAUST GAS, AND CO2 UTILIZATION SYSTEM
Document Type and Number:
Japanese Patent JP2021191731
Kind Code:
A
Abstract:
To provide, in order to reduce energy-originated CO2, a method for utilizing CO2 in cement production exhaust gas in which non-fossil fuel derived CO2 in cement exhaust gas can be effectively utilized by methanation, and to provide a CO2 utilization system.SOLUTION: The method includes a methane production step in which hydrogen is added to CO2 in the exhaust gas from a cement production facility or CO2 separated and recovered from the exhaust gas to produce methane, and a methane consumption step in which the methane produced in the methane production step is used as an alternative fuel for some or all of the fossil fuels into the cement production facility, and in which the methane production step and the methane consumption step are repeated continuously.SELECTED DRAWING: Figure 1
Inventors:
TAKAYAMA YOSHINORI
KAWASAKI HAJIME
TAKAMA TAKUMA
KOMATSU TAKUYA
KAWASAKI HAJIME
TAKAMA TAKUMA
KOMATSU TAKUYA
Application Number:
JP2020098264A
Publication Date:
December 16, 2021
Filing Date:
June 05, 2020
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP
International Classes:
C07C1/12; B01D53/50; B01D53/56; B01D53/62; B01D53/68; C04B7/38; C07C9/04; F27D17/00
Domestic Patent References:
| JP2015030653A | 2015-02-16 | |||
| JP2019172595A | 2019-10-10 | |||
| JP2018052746A | 2018-04-05 |
Foreign References:
| WO2015055349A1 | 2015-04-23 |
Other References:
BAIER ET AL.: "A Cost Estimation for CO2 Reduction and Reuse by Methanation from Cement Industry Sources in Switzer", FRONTIERS IN ENERGY RESEARCH, vol. Vol.6 Article.5, JPN6021027291, 2018, pages 1 - 9, ISSN: 0004854136
Attorney, Agent or Firm:
Masakazu Aoyama