JPS5771810A - Producing and recovering method of co2 gas - Google Patents

Producing and recovering method of co2 gas

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Publication number
JPS5771810A
JPS5771810A JP55146221A JP14622180A JPS5771810A JP S5771810 A JPS5771810 A JP S5771810A JP 55146221 A JP55146221 A JP 55146221A JP 14622180 A JP14622180 A JP 14622180A JP S5771810 A JPS5771810 A JP S5771810A
Authority
JP
Japan
Prior art keywords
gas
furnace
concentration
fuel
fed
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
JP55146221A
Other languages
Japanese (ja)
Other versions
JPS615407B2 (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 JP55146221A priority Critical patent/JPS5771810A/en
Publication of JPS5771810A publication Critical patent/JPS5771810A/en
Publication of JPS615407B2 publication Critical patent/JPS615407B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To obtain CO2 gas of high concentration, by decomposing limestone, etc. with the heat of combustion generated by burning a fuel in a reacting furnace, keeping the CO2 concentration in the produced gas at a specific value, and recovering the CO2 gas.
CONSTITUTION: A powdery limestone or dolomite is fed from a feed port 2 into a reaction furnace 1, and a gas produced in the reaction furnace 1 is fed partially from the bottom feed port 12 to form a fluidized bed 3. Furthermore, a fuel and O2 with a nitrogen content ≤20% are fed from feed ports 4 and 5 respectively into the furnace 1 to burn the fuel, and the limestone, etc. is decomposed with the heat of combustion into a calcined material and CO2 gas. The calcined material is discharged from a discharge port 6. On the other hand, the produced gas is taken out of a discharge port 13, passed through a dust removing apparatus 7 and a cooler 8 to remove dust and moisture. Thus, CO2 gas having a CO2 concentration ≥75vol% is obtained. The resultant CO2 gas is partially passed through a booster 10 and preheater 11 and circulated through the feed port 12 and furnace 1. Most of the remaining CO2 gas is passed through a low temperature separating apparatus 9 to further increase the CO2 concentration and give the CO2 gas of given purity.
COPYRIGHT: (C)1982,JPO&Japio
JP55146221A 1980-10-21 1980-10-21 Producing and recovering method of co2 gas Granted JPS5771810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146221A JPS5771810A (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
JP55146221A JPS5771810A (en) 1980-10-21 1980-10-21 Producing and recovering method of co2 gas

Publications (2)

Publication Number Publication Date
JPS5771810A true JPS5771810A (en) 1982-05-04
JPS615407B2 JPS615407B2 (en) 1986-02-18

Family

ID=15402841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146221A Granted JPS5771810A (en) 1980-10-21 1980-10-21 Producing and recovering method of co2 gas

Country Status (1)

Country Link
JP (1) JPS5771810A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390608A1 (en) * 2010-05-25 2011-11-30 Messer France S.A.S. Method and device for cooling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390608A1 (en) * 2010-05-25 2011-11-30 Messer France S.A.S. Method and device for cooling

Also Published As

Publication number Publication date
JPS615407B2 (en) 1986-02-18

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