FIELD: improved method for production of (meth)acrolein and (meth)acrylic acid.
SUBSTANCE: claimed method includes feeding of raw gas mixture through pipeline from raw material mixer into oxidation reactor and catalytic oxidation of raw mixture in vapor phase to produce (meth)acrolein or (meth)acrylic acid. Said pipeline is heated and/or maintained in heated state and temperature of gas mixture fed into oxidation reactor is by 5-250C higher then condensation temperature of raw gas mixture.
EFFECT: stable and effective method for production of (meth)acrolein and (meth)acrylic acid without alteration of raw mixture composition, abrupt temperature elevation and reducing of catalyst activity and durability.
5 cl, 1 dwg, 2 ex
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|
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