Equipment system for Fischer-Tropsch synthetic reaction and application thereof

Abstract

The invention discloses an equipment system for Fischer-Tropsch synthetic reaction and the system contains a three-phase suspension bed Fischer-Tropsch synthetic reactor and an auxiliary system thereof. The equipment system is characterized in that the three-phase suspension bed Fischer-Tropsch synthetic reactor is provided with a chilling distributor which is used for injecting a circulated condensation product back into the reactor and performing forced heat removing on the filter area of the reactor; the equipment system is also provided with a waste-heat boiler to ensure that the hot air stream of the high temperature light reaction product discharged from the outlet of the reactor first passes through the waste-heat boiler to exchange heat, recycle partial heat and remove less solid catalysts carried by the air stream, thus the downstream condensation product does not contain catalysts. The invention also discloses a method for performing Fischer-Tropsch synthesis by using the equipment system. In the method, tail gas circulation and partial condensation product circulation are adopted, thus the removal of reaction heat can be strengthened, the production capability of the reactor can be increased, the level of the energy recycled from reaction heat can be increased, and the problems that the catalyst is overheated to deactivate and form carbon can be effectively solved.

Description

technical field [0001] The present invention relates to a kind of equipment system for Fischer-Tropsch synthesis reaction, and this system comprises three-phase suspended bed Fischer-Tropsch synthesis reactor and supporting system thereof; The three-phase suspended bed Fischer-Tropsch synthesis reactor uses tail gas circulation and partial condensed product circulation to quench the reactor, which strengthens the removal of reaction heat and improves the production capacity of the reactor and the energy recovered from reaction heat. grade. Background technique [0002] As an energy process, the Fischer-Tropsch synthesis process has been continuously developed for nearly a century, and its main feature is the comprehensive technology development around catalysts and reactors to improve process efficiency and reduce costs. In terms of reactors and related processes and technologies, early (1920-1940s) research and development have proved that Fischer-Tropsch synthesis can be ...

AI Technical Summary

Problems solved by technology

Due to the limitations of the understanding of the reaction process and the technical conditions in the early stage, the developed Fischer-Tropsch synthesis three-phase reactor was verified in the laboratory, but it was not suitable to further scale up. The main problems are: 1) the experimental The result is not better than the traditional fixed bed reaction result; 2) the three-phase suspended bed requires a larger reactor volume; 3) the reactor needs to be acid-resistant; 4) in order to form sufficient stirring, a large circulation volume is required and the energy consumption is high; 5) Reaction products are difficult to remove from the reactor

[0006] However, so far, there is no systematic, complete and effective process plan for the external process support around the reactor intensification operation

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