Title:
CEMENT CLINKER PRODUCTION SYSTEM AND CEMENT CLINKER PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/130730
Kind Code:
A1
Abstract:
Provided is a cement clinker manufacturing system with which it is possible to increase the carbon dioxide gas concentration of some exhaust gas and to obtain a gas containing high-concentration carbon dioxide gas. A cement clinker manufacturing system 1 including: a combustion-supporting gas supply apparatus including a cyclone-type preheating device 2 for preheating a cement clinker raw material, a rotary kiln 3 for firing the preheated cement clinker raw material and obtaining cement clinker, a calcination furnace 4 for promoting decarboxylation of the cement clinker raw material, a clinker cooler 5 for cooling the cement clinker, and kiln exhaust gas discharge paths 6a-6e for discharging an exhaust gas produced in the rotary kiln 3, the combustion-supporting gas supply apparatus supplying a combustion-supporting gas in which the oxygen concentration is made higher than that of air; a combustion-supporting gas supply path 8 for guiding the combustion-supporting gas to the calcination furnace; and a calcination furnace exhaust gas discharge path 9 (limited to a configuration different from the kiln exhaust gas discharge paths 6) for discharging the exhaust gas produced in the calcination furnace 4.
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Inventors:
UENO NAOKI (JP)
NOMURA KOJI (JP)
HONMA KENICHI (JP)
TERASAKI JUNICHI (JP)
YOSHIKAWA TOMOHISA (JP)
KIMURA TAKAYUKI (JP)
NOMURA KOJI (JP)
HONMA KENICHI (JP)
TERASAKI JUNICHI (JP)
YOSHIKAWA TOMOHISA (JP)
KIMURA TAKAYUKI (JP)
Application Number:
PCT/JP2021/035940
Publication Date:
June 23, 2022
Filing Date:
September 29, 2021
Export Citation:
Assignee:
TAIHEIYO CEMENT CORP (JP)
International Classes:
F27D13/00; B01D53/86; C04B7/44
Domestic Patent References:
| WO2008059378A2 | 2008-05-22 | |||
| WO2011162101A1 | 2011-12-29 |
Foreign References:
| JP2007126328A | 2007-05-24 | |||
| JP2009529408A | 2009-08-20 | |||
| JPS61197452A | 1986-09-01 | |||
| JP2019055903A | 2019-04-11 | |||
| JP2015030653A | 2015-02-16 | |||
| JP2000239670A | 2000-09-05 |
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, XP055843333, DOI: 10.3389/fenrg.2018.00005
Attorney, Agent or Firm:
MURACHI Toshiya (JP)
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