Device and method for separating catalyst and heavy hydrocarbons in slurry bed reactor

Abstract

A separation device for a catalyst and heavy hydrocarbon in a slurry bed reactor. The separation device comprises a filter tank (1), a sieve plate (2), an electromagnet (3) and a filtrate tank (4). A catalyst outlet of the filter tank (1) is connected to an input end of the filtrate tank (4). An output end of the filtrate tank (4) is connected to a filtrate circulation return inlet of the filter tank (1). A pipeline between the output end of the filtrate tank (4) and the filtrate circulation return inlet of the filter tank (1) is communication with a product conveying pipe of a product storage tank (5). The catalyst outlet of the filter tank (1) is further connected to a catalyst discharging pipe. A lower portion inside the filter tank (1) is provided with the sieve plate (2), on which a magnetic filter medium layer (6) is provided. The filter tank (1) is provided with the electromagnet (3), which generates a uniform magnetic field at the sieve plate (2). The separation device provides highly efficient solid-liquid separation without blocking a filter medium, and a separated solid catalyst can be recycled and reused, enabling a slurry bed reactor to operate continuously in industrial applications.

Description

technical field [0001] The invention relates to the field of petrochemical technology, in particular to a device and method for separating catalysts and heavy hydrocarbons in a slurry bed reactor. Background technique [0002] Combine CO and H 2 The method of converting the synthesized gas into hydrocarbons through catalyst action was invented by German scientists Frans Fischer and Hans Tropsch in 1923, referred to as Fischer-Tropsch synthesis. The basic principle is that CO undergoes a heterogeneous catalytic hydrogenation reaction on a metal catalyst to form a mixture mainly composed of linear alkanes and alkenes. [0003] With the depletion of petroleum resources, it is a good alternative to petroleum to produce synthetic gas from various hydrocarbon-containing resources such as natural gas, coal, and biomass, and then to produce liquid fuel through Fischer-Tropsch synthesis reaction using synthetic gas as raw material. way, is being valued by more and more countries. ...

AI Technical Summary

Problems solved by technology

These two patents use magnetic force to accelerate the separation of solid catalyst particles and slurry. During the separation process, the catalyst is always in the magnetic field. The magnetic Fischer-Tropsch catalyst is easily magnetized and aggregated, reducing the overall performance of the catalyst.

Images