Device for producing methyl formate by gas phase methanol carbonylation, process and catalyst on-line evaluation method

A technology of methyl formate and gas-phase methanol, applied in the directions of carbon monoxide or formate reaction preparation, measurement device, nitrate preparation, etc., can solve the problems of difficult operation of the device, high equipment capital investment, low catalyst purity requirements, etc. The effect of less capital investment and simple operation of the device

Active Publication Date: 2014-07-30
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Problems solved by technology

[0005] Aiming at the technical problems existing in the existing liquid-phase process reaction device, the present invention provides a device, process and catalyst online evaluation method for gas-phase methanol carbonylation to produce methyl formate, using a fixed-bed reactor, and the reactor is an atmospheric pressure

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  • Device for producing methyl formate by gas phase methanol carbonylation, process and catalyst on-line evaluation method
  • Device for producing methyl formate by gas phase methanol carbonylation, process and catalyst on-line evaluation method
  • Device for producing methyl formate by gas phase methanol carbonylation, process and catalyst on-line evaluation method

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[0042] Example 1:

[0043] The device for producing methyl formate by gas-phase methanol carbonylation disclosed in the present invention includes a nitrogen gas pipeline, a carbon monoxide gas pipeline, a hydrogen gas pipeline, a nitric oxide gas pipeline, an oxygen gas pipeline, a methanol storage tank (1), a fluid pump (2), Esterification tower (3), first distillation tower (4), wastewater storage tank (5), first condenser (6), gas mixing box (7), reactor (8), heating furnace (9), Catalyst (10), needle valve (11), online gas chromatography analysis system (12), gas-liquid separator (13), second distillation tower (14), second condenser (15), methyl formate storage Tank (16), vent valve (17), circulating pump (18);

[0044] Among them: the online gas chromatography analysis system (12) includes a pneumatic ten-way valve (19), a pneumatic six-way valve (20), a quantitative tube (21), a valve controller (22), a first packed column (23), and a second Packed column (24), capillary ...

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Abstract

The invention discloses a device for producing methyl formate by gas phase methanol carbonylation, which is characterized in that the device comprises a nitrogen gas pipeline, a carbon monoxide gas pipeline, a hydrogen gas pipeline, a nitric oxide gas pipeline, an oxygen gas pipeline, a methanol storage tank (1), a fluid pump (2), an esterification column (3), a first rectifying column (4), a waste water storage tank (5), a first condenser (6), a gas mixing box (7), a reactor (8), a heating furnace (9), a catalyst (10), a needle valve (11), an on-line gas chromatography system (12), a gas-liquid separator (13), a second rectifying column (14), a second condenser (15), a methyl formate storage tank (16), an air release valve (17), and a circulating pump (18). The device adopts a fixed bed reactor, is easy to separate the catalyst from the product, and is simple in operation; the reactor is a normal pressure reactor; and the money investment is less.

Description

technical field [0001] The invention belongs to the technical field of methyl formate production, and in particular relates to a device, process and catalyst online evaluation method for producing methyl formate by gas-phase methanol carbonylation. Background technique [0002] Methyl formate is an extremely important intermediate in C1 chemistry and has a wide range of uses. Starting from methyl formate, formic acid, formamide, N,N-dimethylformamide, dimethyl carbonate, ethylene glycol, acetic acid, methyl acetate, acetic anhydride, methyl methacrylate, high-purity CO can be produced It can also be used as insecticide, fungicide, fumigant and tobacco treatment agent. At present, my country's annual demand for methyl formate is about 1.36 million tons, but the production capacity is about 50,000 tons, with a gap of 1.3 million tons. The consumption composition of methyl formate is as follows: 30% for synthetic leather, 26% for pesticide, 25% for medicine, 10% for acrylonit...

Claims

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Application Information

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IPC IPC(8): C07C69/06C07C67/36G01N30/02
CPCC07C67/36C07C201/02G01N30/02C07C69/06C07C203/04
Inventor 徐忠宁郭国聪彭思艳王志巧吕冬梅陈青松王明盛
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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