Methane synthesizing method and equipment with slurry bed member

Abstract

The present invention discloses a method for synthesizing methyl alcohol by using component slurry bed and its equiopment. Said invention utilizes the introduction of specific inert solvent, and makes it and fine granule catalyst and synthetic gas in the reactor form three-phase slurry bed reaction system; and adds internal component and gas distributor in the slurry bed reactor to make bubbles uniformly distribute in the reactor; its operation temp. is easily controlled, and service life of said catalyst is long, under the condition of low operatino gas speed the phase circulation can be increased, the mass transfer heat-transfer can be forcedly intensified, so that the interphase mass transfer speed in the slurry bed reactor can be greatly raised, and its reaction conversion rate can be raised.

Description

technical field [0001] The invention belongs to the technical category of alcohol synthesis, and in particular relates to a component slurry bed methanol synthesis method and equipment which are easy to control and have high production efficiency. technical background [0002] At present, the synthesis of methanol in industry is mainly carried out in fixed-bed gas-solid catalytic synthesis reactors, which have disadvantages such as single-pass conversion rate of synthesis gas and low concentration of methanol at the outlet of the synthesis tower. In recent years, a new three-phase bed methanol synthesis process has been developed, which has good heat transfer and stability, and the reaction temperature is easy to control. The single-pass conversion rate of carbon monoxide and carbon dioxide and the methanol content in the gas phase product are higher than those of the gas-solid phase catalytic method. In the application process of three-phase slurry bed, three-phase slurry b...

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Problems solved by technology

Such as Japanese Patent JP10080634~A2 and U.S. Patent US32040.6 etc. disclose slurry bed methanol synthesis technology; my country East China University of Science and Technology has developed a kind of three-phase bubbling slurry bed methanol synthesis process and device (applied by Zhu Bingchen, Ding Baiquan, Sun Songliang Chinese patent CN00115360.9), realize good dispersion and mixing effect in above-mentioned patented technology, improve mass transfer efficiency, need higher space velocity to promote its internal immersion, but will make reactant stay in the reactor like this The shorter the time, the lower the utilization rate of the catalyst and the incomplete reaction, thus reducing the conversion rate

Although the mechanical stirring tank can achieve a good effect of wetting, but due to its own limitations, it is currently mainly used in laboratory research, and there is still a long way to go for industrial production.

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