Two stage cyclone series connection strengthening separation method for reaction product in suspension bed hydrogenation process, and apparatus

Abstract

The invention relates to a two stage cyclone series connection strengthening separation method for a reaction product in a suspension bed hydrogenation process, and an apparatus, and provides a two stage cyclone series connection strengthening separation method for a reaction product in a suspension bed hydrogenation process. The method comprises: carrying out first-stage cyclone separation on a reaction product from a suspension bed reactor to remove most of liquid droplets and solid catalyst particles; and carrying out second-stage micro-cyclone separation on the reaction product separated through first-stage cyclone separation to separate colloid substances, asphalt substances and solid catalyst particles entrained in the reaction product. The present invention further provides the two stage cyclone series connection strengthening separation apparatus for the reaction product in the suspension bed hydrogenation process.

Description

technical field [0001] The invention belongs to the technical field of petroleum processing, and relates to a separation method and device for strengthening the separation of a three-phase mixture of gas, liquid and solid by adopting two-stage cyclone in series, which is suitable for processing gas with high liquid content and high solid content. , liquid and solid three-phase mixture. Specifically, the present invention provides a two-stage cyclone series enhanced separation method and device for reaction products in a suspended bed hydrogenation process. Background technique [0002] In the petroleum refining industry, the vacuum residue is mixed with additives, hydrogen, etc., and then enters the suspension bed reactor for hydrocracking after being preheated by a high-pressure feed pump. The product after the cracking reaction enters the separator for separation, and the solid and liquid mixture separated by the separator enters the vacuum flash tower to recover distilla...

AI Technical Summary

Problems solved by technology

However, this device is not suitable for processing high-temperature and high-pressure reaction products in the suspension bed hydrogenation process. At the same time, the use of gravity sedimentation to separate gas and liquid mixtures requires large equipment volume, long separation time and is not conducive to continuous production.

[0010] Therefore, in view of the characteristics of high reaction gas pressure, high temperature, large processing capacity, asphalt and colloid entrained in the hydrogenation reaction process, and the separation ability needs to be improved, it is necessary to adopt a novel, effective and suitable for long-term operation. Economical enhanced separation method and device

Images