JPS5771811A - Producing and recovering method of co2 gas - Google Patents

Producing and recovering method of co2 gas

Info

Publication number
JPS5771811A
JPS5771811A JP55146222A JP14622280A JPS5771811A JP S5771811 A JPS5771811 A JP S5771811A JP 55146222 A JP55146222 A JP 55146222A JP 14622280 A JP14622280 A JP 14622280A JP S5771811 A JPS5771811 A JP S5771811A
Authority
JP
Japan
Prior art keywords
gas
fed
reaction furnace
passed
feed port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55146222A
Other languages
Japanese (ja)
Other versions
JPS615408B2 (en
Inventor
Kenji Saito
Hisao Hamada
Kyoji Nakanishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP55146222A priority Critical patent/JPS5771811A/en
Publication of JPS5771811A publication Critical patent/JPS5771811A/en
Publication of JPS615408B2 publication Critical patent/JPS615408B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To obtain CO2 gas of high purity and a calcined material of high grade, by feeding a high-temperature combustion gas prepared by burning and gasifying a solid fuel on the outside of a reaction furnace thereto, and decomposing limestone, etc.
CONSTITUTION: A solid fuel is fed from a feed port 14 into a combustion furnace 13, burned and gasified by oxygen with a nitrogen content ≤20% fed from feed ports 15 and 15', and dust is removed from the gas in a connecting duct. The gas is then passed through a gas dispersing plate 4 and fed into the reaction furnace 1. On the other hand, granular limestone, or dolomite is fed from a feed port 2 into the reaction furnace 1, and a fluidized bed 3 is formed by a gas, produced in the reaction furnace 1, and fed from a feed port 12. O2 gas is simultaneously fed from a feed port 5 to burn the high-temperature combustion gas fed from the dispersing plate 4 completely and decompose the limestone, etc. into a calcined material and CO2 gas. The resultant calcined material is then discharged from a discharge port 6. On the other hand, the CO2 gas is passed through a dust removing apparatus 7 and cooler 8 to give a CO2 gas with a CO2 concentration ≥75%. The resultant gas is partially passed through a booster 10 and preheater 11 and fed to the reaction furnace 1, and most of the gas is passed through a low temperature separating apparatus 9 and recovered.
COPYRIGHT: (C)1982,JPO&Japio
JP55146222A 1980-10-21 1980-10-21 Producing and recovering method of co2 gas Granted JPS5771811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146222A JPS5771811A (en) 1980-10-21 1980-10-21 Producing and recovering method of co2 gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146222A JPS5771811A (en) 1980-10-21 1980-10-21 Producing and recovering method of co2 gas

Publications (2)

Publication Number Publication Date
JPS5771811A true JPS5771811A (en) 1982-05-04
JPS615408B2 JPS615408B2 (en) 1986-02-18

Family

ID=15402865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146222A Granted JPS5771811A (en) 1980-10-21 1980-10-21 Producing and recovering method of co2 gas

Country Status (1)

Country Link
JP (1) JPS5771811A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6259512A (en) * 1985-09-10 1987-03-16 Todaka Sekkai Kako Kk Production unit for carbonic acid gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6259512A (en) * 1985-09-10 1987-03-16 Todaka Sekkai Kako Kk Production unit for carbonic acid gas

Also Published As

Publication number Publication date
JPS615408B2 (en) 1986-02-18

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