Multi-stage slurry bed reactor and working method thereof

Abstract

The invention discloses a multi-stage slurry bed reactor and a working method thereof, and relates to a three-phase slurry bed for generating a liquid product from gas through a catalyst and a reactor thereof in the fields of chemical industry and the like. The multistage slurry bed reactor comprises a lower outer shell, an upper outer shell, a gas distributor, a plurality of heat exchangers, a plurality of filters, a separator, an outlet pipe, a circulating gas inlet device and a conical gas distributor, the gas distributor, the heat exchanger and the filter are sequentially and upwards sleeved with the lower outer shell, and the heat exchanger, the filter and the separator inner component are sequentially and upwards sleeved with the upper outer shell; the top cover is arranged between the outlet pipe and the upper outer shell; a conical gas distributor is arranged between the lower outer shell and the upper outer shell; and a circulating gas inlet device is circumferentially arranged at the lower end of the upper outer shell. According to the multi-stage slurry bed reactor, the conversion rate of reactants is increased by adding the multi-stage reaction sections, and top discharge of liquid products and blockage of a subsequent separation system due to escape of catalyst particles are reduced by adding the tubular separator.

Description

technical field [0001] The invention relates to the field of slurry bed reactor equipment, in particular to a multistage slurry bed reactor and a working method thereof. Background technique [0002] Slurry bed reactor is the core technical equipment for turning natural gas or coal-based synthesis gas into liquid fuel. The basic construction process of slurry bed reactor is as follows: synthesis gas enters the gas-liquid-solid three-phase slurry bed from the bottom of the reactor, The synthesis reaction occurs under the action of solid catalyst particles, and the generated liquid products are pumped out from the middle or lower part of the reactor, unreacted synthesis gas and gas products under reaction conditions flow out from the top of the reactor, and part of the separated gas returns through the circulation system To the reactor to continue the reaction, another part of the gas is discharged from the process system as tail gas. The patent CN1233451C discloses a gas-liq...

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Problems solved by technology

[0003] In order to solve the problems in the existing Fischer-Tropsch synthesis three-phase slurry bed and its reactor that the reaction efficiency is not high, the catalyst is easy to form a dilute phase region, and the catalyst is discharged from the top to block the external filter, etc., the invention relates to a gas generated by a catalyst. Three-phase slurry bed of liquid products and its reactor In the fields of chemical industry and environmental protection, a two-stage reaction is designed by increasing the expansion end and its internal components, and a multi-stage slurry bed reactor and its working method are provided

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