JPH09100108A - Production of carbon monoxide gas - Google Patents

Production of carbon monoxide gas

Info

Publication number
JPH09100108A
JPH09100108A JP7258347A JP25834795A JPH09100108A JP H09100108 A JPH09100108 A JP H09100108A JP 7258347 A JP7258347 A JP 7258347A JP 25834795 A JP25834795 A JP 25834795A JP H09100108 A JPH09100108 A JP H09100108A
Authority
JP
Japan
Prior art keywords
gas
carbon monoxide
raw material
reverse shift
monoxide gas
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.)
Pending
Application number
JP7258347A
Other languages
Japanese (ja)
Inventor
Noboru Yoshida
襄 吉田
Masanobu Tomita
正伸 富田
Kazushika Sakai
一鹿 酒井
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.)
COSMO ENG KK
Original Assignee
COSMO ENG KK
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 COSMO ENG KK filed Critical COSMO ENG KK
Priority to JP7258347A priority Critical patent/JPH09100108A/en
Publication of JPH09100108A publication Critical patent/JPH09100108A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing carbon monoxide at a low cost due to the reduction of a construction cost and an utility cost by separating carbon monoxide gas generated by a reverse shift reaction of carbon dioxide gas with hydrogen gas, from a gas mixture with the unreacted raw material gas. SOLUTION: This method for producing carbon monoxide is to supply the raw material hydrogen gas and carbon dioxide gas together with an off gas from a carbon monoxide separating device 1 such as a COPSA through a raw material supplying line 2 into a reverse shift reaction furnace 3 performing the reverse shift process and to reform the raw material gas to carbon monoxide gas and water vapor. The reaction conditions are at 420 deg.C and 0.9kg/cm<2> G. The mixed gas of the produced gas with the unreacted raw material gas discharged from the reverse shift reaction furnace is sent through a dryer heater 4 and an after-cooler 5 to a drain separator 6 for removing water, compressed to 7.0kg/cm<2> G at 40 deg.C by a compressor 7, then sent to the carbon monoxide separating device 1, and the separated carbon monoxide gas is compressed by a CO compressor 8 and made as a product through a dehumidifying unit 9. The off gas is recycled by an off gas holder 10 and a blower 11.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、一酸化炭素ガスの
製造方法に関し、詳しくは、水素ガスと炭酸ガスから一
酸化炭素ガスを製造する方法に関する。
TECHNICAL FIELD The present invention relates to a method for producing carbon monoxide gas, and more particularly to a method for producing carbon monoxide gas from hydrogen gas and carbon dioxide gas.

【0002】[0002]

【従来の技術】従来、脂肪酸、酢酸、蟻酸、アクリル
酸、アクリル酸エステル、ホスゲン、メタノール等のC
1化学の原料である一酸化炭素ガスは、天然ガス、製油
所オフガス(メタン、プロパン、ブタン等)、サフナ等
を原料とした水蒸気改質法、重質油を原料とした部分酸
化法、石炭から合成ガスを製造する石炭ガス化法、製鉄
所から発生する副生ガスから一酸化炭素ガスを分離・精
製する方法、およびメタノールから蟻酸メチル合成法を
利用したメタノール法等によって製造されることが知ら
れている。
2. Description of the Related Art Conventionally, C such as fatty acid, acetic acid, formic acid, acrylic acid, acrylic acid ester, phosgene and methanol is used.
1 Chemistry of carbon monoxide gas as a raw material, natural gas, refinery off-gas (methane, propane, butane, etc.), steam reforming method using a raw material such Safuna, partial oxidation of heavy oil as a raw material, coal It can be produced by the coal gasification method of producing synthetic gas from coal, the method of separating and purifying carbon monoxide gas from the by-product gas generated from an iron mill, and the methanol method using the methyl formate synthesis method from methanol. Are known.

【0003】特に、水蒸気改質法にあっては、改質炉、
水蒸気発生炉、シフト反応器、炭酸ガス分離装置、水蒸
気分離装置等からなる製造装置によって製造されるよう
になっている。
Particularly in the steam reforming method, a reforming furnace,
It is manufactured by a manufacturing apparatus including a steam generation furnace, a shift reactor, a carbon dioxide gas separation device, a steam separation device, and the like.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、このよ
うな従来の一酸化炭素ガスの製造方法として、水蒸気改
質法にあっては、改質炉、水蒸気発生炉、シフト反応
器、炭酸ガス分離装置、水蒸気分離装置等が必要であっ
たため、製造装置の構造が複雑になってしまい、装置の
建設費が増大してしまう上にユーティリティの使用量も
多いため(改質炉や水蒸気発生炉の熱回収のための設備
が必要になるため)、一酸化炭素ガスの製造コストが増
大してしまうという問題があった。
However, in the steam reforming method as such a conventional method for producing carbon monoxide gas, there are a reforming furnace, a steam generating furnace, a shift reactor, and a carbon dioxide gas separation device. Since a steam separator was required, the structure of the manufacturing equipment became complicated, the construction cost of the equipment increased, and the amount of utilities used was large (heat of the reforming furnace and steam generator). There is a problem that the production cost of carbon monoxide gas increases because the facility for recovery is required).

【0005】そこで請求項1記載の発明は、簡易な装置
構成によって一酸化炭素ガスを製造するようにして、装
置の建設費およびユーティリティコストを低減すること
ができ、安価に一酸化炭素ガスを製造することができる
一酸化炭素ガスの製造方法を提供することを目的として
いる。
Therefore, in the invention described in claim 1, the carbon monoxide gas can be produced with a simple device configuration, whereby the construction cost and utility cost of the device can be reduced, and the carbon monoxide gas can be produced inexpensively. It is an object of the present invention to provide a method for producing carbon monoxide gas that can be used.

【0006】[0006]

【課題を解決するための手段】請求項1記載の発明は、
上記課題を解決するために、水素ガスと炭酸ガスを原料
とし、炭酸ガスと水素ガスの逆シフト反応によって一酸
化炭素ガスと未反応の水素ガスおよび炭酸ガスの混合ガ
スを生成する逆シフト反応工程と、該逆シフト反応工程
によって生成された一酸化炭素ガスと未反応の水素ガス
および炭酸ガスの混合ガスから一酸化炭素ガスのみを分
離する分離工程と、を含んでなることを特徴とするもの
である。
According to the first aspect of the present invention,
In order to solve the above problems, a reverse shift reaction step in which hydrogen gas and carbon dioxide are used as raw materials and a mixed gas of carbon monoxide gas and unreacted hydrogen gas and carbon dioxide is generated by a reverse shift reaction of carbon dioxide and hydrogen gas. And a separation step of separating only carbon monoxide gas from a mixed gas of carbon monoxide gas generated by the reverse shift reaction step and unreacted hydrogen gas and carbon dioxide gas. Is.

【0007】その場合、逆シフト反応工程において、逆
シフト反応触媒を充填した逆シフト反応炉でH2+CO2
→CO+H2Oの反応を行なうと、一酸化炭素ガスと水
が生成される。そして、生成ガスから水を分離した後
に、分離工程において一酸化炭素ガスと未反応の水素ガ
スおよび炭酸ガスの混合ガスから例えば、COPSA
(CO−Rressure Swing Adsorption)等の一酸化炭素
ガス分離装置によって一酸化炭素ガスを分離し、未反応
の水素ガスと炭酸ガスをリサイクルガスとして利用し、
余剰分を燃料として使用する。
In that case, in the reverse shift reaction step, H 2 + CO 2 is stored in the reverse shift reaction furnace filled with the reverse shift reaction catalyst.
→ When the reaction of CO + H 2 O is performed, carbon monoxide gas and water are produced. Then, after separating the water from the generated gas, in the separation step, for example, COPSA is selected from the mixed gas of the carbon monoxide gas and the unreacted hydrogen gas and carbon dioxide gas.
Carbon monoxide gas is separated by a carbon monoxide gas separator such as (CO-Rressure Swing Adsorption), and unreacted hydrogen gas and carbon dioxide gas are used as recycle gas,
Use the surplus as fuel.

【0008】このようにすれば、水素ガスと炭酸ガスが
比較的安価に入手できれば、製造装置を簡易な構成にし
て、製造装置の建設費およびユーティリティコストを低
減することができ、一酸化炭素ガスを安価に製造するこ
とができる。さらに、炭酸ガスを原料として有益な一酸
化炭素ガスを製造することができるので、地球の温暖化
の大きな原因となっている炭酸ガスの有効利用にも寄与
することができる。
[0008] In this way, if hydrogen gas and carbon dioxide gas can be obtained at a relatively low cost, the manufacturing apparatus can be made to have a simple structure and the construction cost and utility cost of the manufacturing apparatus can be reduced. Can be manufactured at low cost. Furthermore, since carbon monoxide gas can be used as a raw material to produce useful carbon monoxide gas, it can contribute to effective use of carbon dioxide gas, which is a major cause of global warming.

【0009】[0009]

【発明の実施の形態】以下、本発明の実施例を図面に基
づいて説明する。図1〜3は本発明に係る一酸化炭素ガ
スの製造方法を達成するための一酸化炭素ガスの製造装
置の一実施例を示す図である。図1に示す如く、原料の
水素ガスと炭酸ガスは、COPSA(CO−RressureSw
ing Adsorption)等の一酸化炭素分離装置に1からのオ
フガスと共に原料供給ライン2を通って逆シフト工程を
実施する逆シフト反応炉3内に入り、この逆シフト反応
炉3で一酸化炭素ガスと水蒸気とに改質される。なお、
この逆シフト反応炉3での反応条件は、温度が約420℃
に設定され、圧力が0.9Kg/cm2Gに設定される。また、こ
のときの反応は、吸熱反応であるため、外部から燃料を
焚き加熱する。
Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing an embodiment of a carbon monoxide gas production apparatus for achieving the carbon monoxide gas production method according to the present invention. As shown in Fig. 1, the hydrogen gas and carbon dioxide gas as the raw materials are COPSA (CO-RressureSw
ing Adsorption) and the like with the off gas from 1 through the raw material supply line 2 into the reverse shift reaction furnace 3 for performing the reverse shift process. It is reformed to steam. In addition,
The reaction condition in this reverse shift reactor 3 is that the temperature is about 420 ° C.
And the pressure is set to 0.9 Kg / cm 2 G. Further, since the reaction at this time is an endothermic reaction, the fuel is heated by heating the fuel from the outside.

【0010】次いで、逆シフト反応炉3から出た生成ガ
スおよび未反応原料ガスの混合ガス(温度570℃、圧力
0.5Kg/cm2G)は、原料ガスを予熱した後、ドライヤヒー
タ4およびアフタークーラー5を経た後、ドレンセパレ
ータ6に入り、水分が除去された後、圧縮機7によって
温度40℃、圧力7.0Kg/cm2Gに昇圧された後、分離工程を
実施する一酸化炭素ガス分離装置1に送られる。
Then, a mixed gas of the product gas and the unreacted raw material gas discharged from the reverse shift reactor 3 (temperature: 570 ° C., pressure:
0.5 Kg / cm 2 G), after preheating the raw material gas, after passing through the dryer heater 4 and the after-cooler 5, enters the drain separator 6 to remove water, and then the compressor 7 sets the temperature to 40 ° C. and the pressure to 7.0. After the pressure is increased to Kg / cm 2 G, it is sent to the carbon monoxide gas separation device 1 which carries out the separation step.

【0011】この分離装置1では、一酸化炭素ガスとそ
の他のガスに分離され、一酸化炭素ガスはCO圧縮機8
によって昇圧された後、脱湿ユニット9を経て製品とな
る。一方、一酸化炭素ガス分離装置1からのオフガスは
オフガスホルダー10を経た後、オフガスブロアー11によ
って逆シフト反応炉3にリサイクルされる。また、余剰
分の燃料は逆シフト反応炉3の上述した加熱用の燃料と
して利用される。
In this separator 1, the carbon monoxide gas is separated into other gas, and the carbon monoxide gas is separated by the CO compressor 8
After the pressure is increased by, the product passes through the dehumidifying unit 9 and becomes a product. On the other hand, the off gas from the carbon monoxide gas separation device 1 passes through the off gas holder 10 and is then recycled to the reverse shift reactor 3 by the off gas blower 11. The surplus fuel is used as the heating fuel for the above-described reverse shift reactor 3.

【0012】本実施例では、上述したような装置によっ
て、200Nm3/Hrの一酸化炭素ガスを製造した場合に、図
2、3に示す製造プロセスの物質収支(マテリアルバラ
ンス)から明らかなように、一酸化炭素ガス分離装置1
から分離された一酸化炭素ガスはかなりのレベルで製造
されることが分かった。このように本実施例では、水素
ガスと炭酸ガスを原料とし、逆シフト反応炉3を用い、
炭酸ガスと水素ガスの逆シフト反応によって一酸化炭素
ガスと未反応の水素ガスおよび炭酸ガスの混合ガスを生
成した後、一酸化炭素ガス分離装置1を用いて一酸化炭
素ガスと未反応の水素ガスおよび炭酸ガスの混合ガスか
ら一酸化炭素ガスのみを分離するようにしたため、水素
ガスと炭酸ガスが比較的安価に入手できれば、製造装置
を簡易な構成にして、製造装置の建設費およびユーティ
リティコストを低減することができ、一酸化炭素ガスを
安価に製造することができる。さらに、炭酸ガスを原料
として有益な一酸化炭素ガスを製造することができるの
で、地球の温暖化の大きな原因となっている炭酸ガスの
有効利用にも寄与することができる。
In this example, when 200 Nm 3 / Hr carbon monoxide gas was produced by the above-mentioned apparatus, as is clear from the material balance of the production process shown in FIGS. , Carbon monoxide gas separator 1
It has been found that the carbon monoxide gas separated from is produced at significant levels. As described above, in the present embodiment, hydrogen gas and carbon dioxide gas are used as raw materials, the reverse shift reactor 3 is used,
After a mixed gas of carbon monoxide gas, unreacted hydrogen gas and carbon dioxide gas is generated by a reverse shift reaction of carbon dioxide gas and hydrogen gas, carbon monoxide gas and unreacted hydrogen are separated using the carbon monoxide gas separation device 1. Since only carbon monoxide gas is separated from the mixed gas of carbon dioxide and carbon dioxide, if hydrogen gas and carbon dioxide can be obtained at a relatively low cost, the production equipment will have a simple structure, and the construction cost and utility cost of the production equipment will be reduced. Can be reduced, and carbon monoxide gas can be produced at low cost. Furthermore, since carbon monoxide gas can be used as a raw material to produce useful carbon monoxide gas, it can contribute to effective use of carbon dioxide gas, which is a major cause of global warming.

【0013】[0013]

【発明の効果】請求項1記載の発明によれば、水素ガス
と炭酸ガスが比較的安価に入手できれば、製造装置を簡
易な構成にして、製造装置の建設費およびユーティリテ
ィコストを低減することができ、一酸化炭素ガスを安価
に製造することができる。さらに、炭酸ガスを原料とし
て有益な一酸化炭素ガスを製造することができるので、
地球の温暖化の大きな原因となっている炭酸ガスの有効
利用にも寄与することができる。
According to the first aspect of the present invention, if hydrogen gas and carbon dioxide gas can be obtained at a relatively low cost, the manufacturing apparatus can have a simple structure and the construction cost and utility cost of the manufacturing apparatus can be reduced. Therefore, the carbon monoxide gas can be produced at a low cost. Furthermore, since carbon monoxide gas can be produced as a useful carbon monoxide gas,
It can also contribute to effective use of carbon dioxide, which is a major cause of global warming.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係る一酸化炭素ガスの製造方法の一実
施例を示す図であり、その製造方法を達成するための製
造装置の一実施例を示す図である。
FIG. 1 is a diagram showing an embodiment of a method for producing carbon monoxide gas according to the present invention, and is a diagram showing an embodiment of a production apparatus for achieving the production method.

【図2】一実施例の一酸化炭素ガスの物質収支を示す図
である。
FIG. 2 is a diagram showing a mass balance of carbon monoxide gas in one example.

【図3】一実施例の一酸化炭素ガスの物質収支を示す図
である。
FIG. 3 is a diagram showing a mass balance of carbon monoxide gas in one example.

【符号の説明】[Explanation of symbols]

1 一酸化炭素ガス分離装置 2 原料供給ライン 3 逆シフト反応炉 4 ドライヤーヒータ 5 アフタークーラー 6 ドレンセパレータ 7 圧縮機 8 CO圧縮機 9 脱湿ユニット 10 オフガスホルダー 11 オフガスブロアー 1 Carbon Monoxide Gas Separator 2 Raw Material Supply Line 3 Reverse Shift Reactor 4 Dryer Heater 5 After Cooler 6 Drain Separator 7 Compressor 8 CO Compressor 9 Dehumidifying Unit 10 Off Gas Holder 11 Off Gas Blower

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】水素ガスと炭酸ガスを原料とし、炭酸ガス
と水素ガスの逆シフト反応によって一酸化炭素ガスと未
反応の水素ガスおよび炭酸ガスの混合ガスを生成する逆
シフト反応工程と、 該逆シフト反応工程によって生成された一酸化炭素ガス
と未反応の水素ガスおよび炭酸ガスの混合ガスから一酸
化炭素ガスのみを分離する分離工程と、を含んでなるこ
とを特徴とする一酸化炭素ガスの製造方法。
1. A reverse shift reaction step in which hydrogen gas and carbon dioxide gas are used as raw materials and a mixed gas of carbon monoxide gas and unreacted hydrogen gas and carbon dioxide gas is generated by a reverse shift reaction of carbon dioxide gas and hydrogen gas, And a separation step of separating only carbon monoxide gas from a mixed gas of carbon monoxide gas produced by the reverse shift reaction step and unreacted hydrogen gas and carbon dioxide gas. Manufacturing method.
JP7258347A 1995-10-05 1995-10-05 Production of carbon monoxide gas Pending JPH09100108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7258347A JPH09100108A (en) 1995-10-05 1995-10-05 Production of carbon monoxide gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7258347A JPH09100108A (en) 1995-10-05 1995-10-05 Production of carbon monoxide gas

Publications (1)

Publication Number Publication Date
JPH09100108A true JPH09100108A (en) 1997-04-15

Family

ID=17318986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7258347A Pending JPH09100108A (en) 1995-10-05 1995-10-05 Production of carbon monoxide gas

Country Status (1)

Country Link
JP (1) JPH09100108A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000068146A1 (en) * 1999-05-06 2000-11-16 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude On site carbon monoxide generator
US8946308B2 (en) 2008-12-17 2015-02-03 Saudi Basic Industries Corporation Process for increasing the carbon monoxide content of a syngas mixture
WO2024048423A1 (en) * 2022-08-30 2024-03-07 Jfeミネラル株式会社 Circulating reduction system, iron ore reduction method, and blast furnace operation method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000068146A1 (en) * 1999-05-06 2000-11-16 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude On site carbon monoxide generator
US8946308B2 (en) 2008-12-17 2015-02-03 Saudi Basic Industries Corporation Process for increasing the carbon monoxide content of a syngas mixture
US9249079B2 (en) 2008-12-17 2016-02-02 Saudi Basic Industries Corporation Process for increasing the carbon monoxide content of a syngas mixture
WO2024048423A1 (en) * 2022-08-30 2024-03-07 Jfeミネラル株式会社 Circulating reduction system, iron ore reduction method, and blast furnace operation method

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