JP2002069048A5 - Method for producing acrylonitrile - Google Patents
Method for producing acrylonitrile Download PDFInfo
- Publication number
- JP2002069048A5 JP2002069048A5 JP2000258803A JP2000258803A JP2002069048A5 JP 2002069048 A5 JP2002069048 A5 JP 2002069048A5 JP 2000258803 A JP2000258803 A JP 2000258803A JP 2000258803 A JP2000258803 A JP 2000258803A JP 2002069048 A5 JP2002069048 A5 JP 2002069048A5
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- JP
- Japan
- Prior art keywords
- methanol
- producing acrylonitrile
- catalyst layer
- gas
- acrylonitrile
- 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.)
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Description
【特許請求の範囲】
【請求項１】 流動層反応器を用いたプロピレンまたはプロパンのアンモ酸化反応によりアクリロニトリルを製造する方法において、触媒層の上部に設置したガス導入口からメタノールとメタノール１に対して０．５ないし１０（モル比）の範囲の水蒸気とを含むメタノール含有ガスを、ガス導入口開口部から触媒層へ吹き出す時の速度が５ないし７０ｍ／秒で触媒層へ送入することを特徴とするアクリロニトリルの製造方法。
【請求項２】 メタノール含有ガスがメタノール１に対し酸素０．０１ないし０．５（モル比）の範囲の酸素を含むことを特徴とする請求項１記載の方法。
【請求項３】 メタノール含有ガスを触媒層に吹き出す開口部がガス分散管から分岐したノズルであって、その長さが１ｃｍないし５０ｃｍであることを特徴とする請求項１または２のいずれか１項記載の方法。
[Claims]
1. A process for producing acrylonitrile by ammoxidation of propylene or propane using a fluidized bed reactor,Catalyst layerOf methanol and water vapor in the range of 0.5 to 10 (molar ratio) with respect to 1Containing methanol-containing gasAcrylonitrile, wherein the gas is blown into the catalyst layer at a speed of 5 to 70 m / sec when blowing out from the gas inlet opening to the catalyst layer.Manufacturing method.
(2) Methanol containing gasOxygen 0.01 to 0.5 (mole ratio) per methanol 1Contains oxygenThe method of claim 1, wherein:
3. An opening for blowing a methanol-containing gas into a catalyst layer is a nozzle branched from a gas dispersion tube, and has a length of 1 cm to 50 cm.IsThe method according to claim 1, wherein the method comprises:
【０００１】
【発明の属する技術分野】
本発明は、流動層反応器を用いプロピレンまたはプロパンのアンモ酸化反応によりアクリロニトリルを製造するに当たり、メタノールを特定条件下に反応帯域に送入し青酸生産量を増大させるアクリロニトリルの製造方法に関する。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention, in producing acrylonitrile by ammoxidation of propylene or propane using a fluidized bed reactor, a process for producing acrylonitrile increasing and fed to the reaction zone with methanol to certain conditions hydrogen cyanide production.
すなわち、本発明は、流動層反応器を用いたプロピレンまたはプロパンのアンモ酸化反応によりアクリロニトリルを製造する方法において、触媒層の上部に設置したガス導入口からメタノールとメタノール１に対して０．５ないし１０（モル比）の範囲の水蒸気とを、ガス導入口開口部から触媒層へ吹き出す時の速度が５ないし７０ｍ／秒で触媒層へ送入することを特徴とするアクリロニトリルの製造方法に関する。 That is, the present invention provides a process for producing acrylonitrile by ammoxidation of propylene or propane using a fluidized bed reactor, from 0.5 to methanol and methanol 1 from the gas inlet which is placed on top of the catalyst layer The present invention relates to a method for producing acrylonitrile , wherein steam at a rate of 10 (molar ratio) is blown into the catalyst layer at a speed of 5 to 70 m / sec when blowing out the gas from the gas inlet opening into the catalyst layer.
本発明をより効果的に実施するためには、メタノール含有ガス吹き出し口の数についても考慮することが望ましい。すなわち、メタノール含有ガス吹き出し口の数は触媒層下部に配置されたプロピレンまたはプロパン・アンモニア吹き出し口の数の３０ないし３００％、好ましくは５０ないし２００％の範囲が良い。 In order to carry out the present invention more effectively, it is desirable to consider the number of gas outlets containing methanol. That is, the number of the methanol-containing gas outlets is in the range of 30 to 300%, preferably 50 to 200% of the number of the propylene or propane / ammonia outlets arranged below the catalyst layer .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000258803A JP4573970B2 (en) | 2000-08-29 | 2000-08-29 | Method for producing acrylonitrile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000258803A JP4573970B2 (en) | 2000-08-29 | 2000-08-29 | Method for producing acrylonitrile |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002069048A JP2002069048A (en) | 2002-03-08 |
| JP2002069048A5 true JP2002069048A5 (en) | 2007-10-11 |
| JP4573970B2 JP4573970B2 (en) | 2010-11-04 |
Family
ID=18747055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000258803A Expired - Fee Related JP4573970B2 (en) | 2000-08-29 | 2000-08-29 | Method for producing acrylonitrile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4573970B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5106765B2 (en) * | 2005-09-01 | 2012-12-26 | 三菱レイヨン株式会社 | Nitrile compound production method and production apparatus |
| US8585870B2 (en) * | 2008-03-05 | 2013-11-19 | E I Du Pont De Nemours And Company | Process to C-manufacture acrylonitrile and hydrogen cyanide |
| CN115818668B (en) * | 2022-10-27 | 2024-06-25 | 万华化学集团股份有限公司 | Method for preparing hydrocyanic acid by ammoxidation of methanol |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535377B2 (en) * | 1973-01-24 | 1980-09-12 | ||
| JPS548655B2 (en) * | 1974-08-01 | 1979-04-17 | ||
| JPH0597431A (en) * | 1991-10-03 | 1993-04-20 | Mitsubishi Kasei Corp | Production of unsaturated nitrile and hydrocyanic acid |
| US5457223A (en) * | 1992-10-09 | 1995-10-10 | The Standard Oil Company | Process for elimination of waste material during manufacture of acrylonitrile |
| JPH07126237A (en) * | 1993-11-05 | 1995-05-16 | Standard Oil Co:The | Method for eliminating waste during manufacturing acrylonitrile |
| JPH0827087A (en) * | 1994-07-08 | 1996-01-30 | Asahi Chem Ind Co Ltd | Method for producing alpha,beta-unsaturated nitrile |
| JP3974951B2 (en) * | 1995-04-26 | 2007-09-12 | 旭化成ケミカルズ株式会社 | Method for producing α, β-unsaturated nitrile |
-
2000
- 2000-08-29 JP JP2000258803A patent/JP4573970B2/en not_active Expired - Fee Related
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