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Reaction temperature control method of synthesis gas to low-carbon alcohol reactor

A control method and reaction temperature technology, applied in chemical instruments and methods, control/adjustment process, chemical/physical/physicochemical process, etc., can solve the problems of catalyst bed heat accumulation, reaction temperature jumping, etc. Effects of removing efficiency, improving removal rate, and enhancing flexibility

Active Publication Date: 2021-07-27
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0032] The main purpose of the present invention is to provide a method for controlling the reaction temperature of a synthesis gas to low-carbon alcohol reactor, so as to solve the problem in the prior art that the catalyst bed heat accumulation occurs when the reaction heat cannot be taken away, which causes the reaction temperature to soar rapidly. temperature problem

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  • Reaction temperature control method of synthesis gas to low-carbon alcohol reactor

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Embodiment 1

[0066] After the ratio of the cold shock gas at the feed gas inlet of the reactor 10 to the feed gas is increased from 3:1 to 4:1, the methane content in the inlet gas of the reactor 10 is increased from 8% to 12%, and the reactor 10 The temperature of the inlet gas is reduced from 230°C to 200°C, and the hot spot temperature of the catalyst bed is 240°C.

[0067] It can be seen that the flow rate of the quenching gas in the reactor 10 can effectively reduce the inlet temperature of the reactor 10, and the purpose of controlling the temperature of the internal catalyst bed of the reactor 10 through the flow rate of the quenching gas is achieved. At the same time, as the flow rate of the chilled gas increases, the tendency of the temperature of the catalyst bed in the reactor 10 to decrease also increases, thereby helping to suppress the occurrence of runaway temperature faults of the catalyst bed.

[0068] And under the same conditions, when using the existing synthesis gas me...

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Abstract

The invention provides a method for controlling the reaction temperature of a reactor for producing low-carbon alcohol from synthesis gas. The method includes using the reaction heat removal unit to forcibly remove the heat released by the reaction in the synthesis device. When the catalyst bed of the reactor has a tendency to overheat, the cold shock gas bypass adjustment system is used to add 60-90 ° C to the reactor. The cold shock gas reduces the temperature of the gas entering the reactor. The invention solves the problem in the prior art that the heat of the catalyst bed is accumulated and the reaction temperature rises rapidly when the heat of reaction cannot be taken away.

Description

technical field [0001] The invention relates to the field of synthesis gas to low-carbon mixed alcohols, in particular to a method for controlling the reaction temperature of a synthesis gas to low-carbon alcohol reactor. Background technique [0002] Low-carbon alcohols refer to C1-C6 alcohol compounds. Higher alcohols such as ethanol, propanol, butanol, and pentanol are important intermediates for the production of bulk chemicals such as pharmaceuticals and polyesters, and have high economic value. High-carbon alcohols containing more than 6 carbon atoms are raw materials for synthesizing surfactants, detergents, plasticizers and other fine chemicals, and have the advantages of high unit output value and large added value. Low-carbon alcohol compounds are widely used. Synthesis gas can be used to synthesize low-carbon mixed alcohols under the action of catalysts. After the mixed alcohols are separated, various alcohol products can be obtained. The low-carbon mixed alcohol ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00
CPCB01J19/0013B01J19/002B01J2219/00103
Inventor 张艳红吴秀章
Owner CHNA ENERGY INVESTMENT CORP LTD