Abstract:

Crude oils available to refineries are becoming increasingly heavier. Meanwhile，environmental regulations on product quality are more and more stringent. Therefore，slurry bed hydrocracking technologies have attracted much attention for their special superiority in treating very poor quality crude oil feedstocks. This paper describes the latest progress of some typical slurry bed hydrocracking technologies，such as EST，VRSH and Uniflex™，with emphasis on their technical characteristics. The orientation for future research and development in slurry bed hydrocracking technologies are also discussed，such as colloid stability control，development of novel hydroprocessing catalysts，and hydrodynamic and mass transfer characteristics of slurry bed reactor.