加氢气液分配器的开裂失效及管式气液分配器技术概况

Cracking failure and development trend of hydrogenation gas-liquid distributor

加氢工艺是清洁燃料生产过程中必不可少的技术,而加氢气液分配器的工作性能直接影响到催化剂寿命、产品质量和装置的运行周期。介绍了国内外各类加氢气液分配器,总结了各类气液分配器的基本特点,通过对泡罩式气液分配器失效分析研究,提出一种新型管式气液分配器,气液均匀分布性好,流动阻力相对较小,结构牢靠;还阐述了气液分配器的发展趋势。

Hydrogenation is an essential technology in clean fuel production,and the performance of the hydrogenation gas-liquid distributor directly affects the catalyst life,product quality and operation cycle of the plant.This paper introduces various types of gas-liquid distributors for hydrogenation reactors at domestic and abroad,and summarizes the basic working characteristics of those gas-liquid distributors.Based on the failure analysis of the bubble-cap gas-liquid distributor,a new type of tubular gas-liquid distributor is proposed.The new type of distributor has good gas-liquid uniform distribution performance,low flow resistance and stable structure.This paper also analyzes the development trend of gas-liquid distributor.