Title:
METHODS AND SYSTEMS FOR RECOVERY OF CO2 GAS IN CEMENT-MANUFACTURING FACILITIES, AND PROCESSES FOR MANUFACTURING CEMENT
Document Type and Number:
WIPO Patent Application WO/2011/048770
Kind Code:
A1
Abstract:
Provided are methods for separating and recovering, in a high concentration, CO2 gas generated in cement-manufacturing facilities. One of the methods comprises: feeding both an uncalcined raw material for cement and a heating medium which has a particle diameter larger than that of the raw material and which has been heated to the calcination temperature or above in a medium-heating furnace (14) to a mixing/calcining furnace (12); and recovering CO2 gas generated by calcination of the raw material, with the heating medium being circulated between the medium-heating furnace (14) and the mixing/calcining furnace (12). Another of the methods comprises: feeding an uncalcined raw material for cement to a regenerative calcining furnace (112) which has been heated to the calcination temperature or above and has been stored with heat; and recovering CO2 gas generated by calcination of the raw material.
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Inventors:
SHIMA, Hirokazu (Central Research Institute 1002-14 Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
島裕和 (〒02 茨城県那珂市向山１００２－１４三菱マテリアル株式会社 中央研究所内 Ibaraki, 〒3110102, JP)
HIGUCHI, Naohiro (Central Research Institute 1002-14 Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
樋口直寛 (〒02 茨城県那珂市向山１００２－１４三菱マテリアル株式会社 中央研究所内 Ibaraki, 〒3110102, JP)
TAKAYAMA, Yoshinori (Central Research Institute 1002-14 Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
島裕和 (〒02 茨城県那珂市向山１００２－１４三菱マテリアル株式会社 中央研究所内 Ibaraki, 〒3110102, JP)
HIGUCHI, Naohiro (Central Research Institute 1002-14 Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
樋口直寛 (〒02 茨城県那珂市向山１００２－１４三菱マテリアル株式会社 中央研究所内 Ibaraki, 〒3110102, JP)
TAKAYAMA, Yoshinori (Central Research Institute 1002-14 Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
Application Number:
JP2010/006047
Publication Date:
April 28, 2011
Filing Date:
October 12, 2010
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORPORATION (3-2 Otemachi 1-chome, Chiyoda-ku Tokyo, 17, 〒1008117, JP)
三菱マテリアル株式会社 (〒17 東京都千代田区大手町一丁目３番２号 Tokyo, 〒1008117, JP)
SHIMA, Hirokazu (Central Research Institute 1002-14 Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
島裕和 (〒02 茨城県那珂市向山１００２－１４三菱マテリアル株式会社 中央研究所内 Ibaraki, 〒3110102, JP)
HIGUCHI, Naohiro (Central Research Institute 1002-14 Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
樋口直寛 (〒02 茨城県那珂市向山１００２－１４三菱マテリアル株式会社 中央研究所内 Ibaraki, 〒3110102, JP)
三菱マテリアル株式会社 (〒17 東京都千代田区大手町一丁目３番２号 Tokyo, 〒1008117, JP)
SHIMA, Hirokazu (Central Research Institute 1002-14 Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
島裕和 (〒02 茨城県那珂市向山１００２－１４三菱マテリアル株式会社 中央研究所内 Ibaraki, 〒3110102, JP)
HIGUCHI, Naohiro (Central Research Institute 1002-14 Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
樋口直寛 (〒02 茨城県那珂市向山１００２－１４三菱マテリアル株式会社 中央研究所内 Ibaraki, 〒3110102, JP)
International Classes:
C04B7/44; F27D13/00; F27D17/00
Attorney, Agent or Firm:
SHIMIZU, Chiharu (3rd Floor, Nakagin-Honsha Bldg. 16-10, Ginza 8-chome, Chuo-k, Tokyo 61, 〒1040061, JP)
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