In-situ analysis method of propylene ammoxidizing product

A technology of oxidation reaction and analysis method, which is used in the preparation of hydrocarbon ammoxidation, analysis of materials, material separation, etc., can solve the problems of inability to realize automatic operation of the device, long analysis time, high labor intensity, etc., and achieve easy automation and good technical effect. , the effect of reducing labor intensity
CN1506351AInactive Publication Date: 2004-06-23CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2004-06-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention is in-site analysis method of propylene ammoxidizing product and aims at providing automatic relatively simple and time-saving in-site analysis method of propylene ammoxidizing product. The technological scheme of the present invention adopts twice direct gas samplings, including the first to complete the separation and rationing ammonia component and the second to complete the rationing of acrylonitrile, hydrocyanic acid, acraldehyde, acetonitrile and acrylic acid components. The present invention may be used in the industrial production of acrylonitrile.
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Description

technical field

[0001] The invention relates to an online analysis method for a propylene ammoxidation reaction product. Background technique

[0002] Acrylonitrile is an important basic organic chemical raw material and one of the important monomers of the three major synthetic materials. In 1960, Standard Oil Co. successfully developed the propylene ammoxidation method to produce acrylonitrile, that is, using propylene, ammonia and air as raw materials, and catalyzed by molybdenum-bismuth catalyst in a fluidized bed reactor to directly synthesize acrylonitrile . Because the propylene ammoxidation method has obvious technical and economic advantages, it has become the only acrylonitrile production method at present.

[0003] The synthesis gas in the production process of acrylonitrile is the outlet gas of the propylene ammoxidation reactor, mainly containing O 2 , N 2 , CO, CO 2 、C 2 ＝ (ethylene), C 3 ＝ (propylene), C 3 0 (propane),...

Claims

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