A PROCESS OF HYDROTREATING A HYDROCARBON STREAM IN A HYDROTREATER AND THEN RECOVERING THE PRODUCTS

摘要

During the hydrotreating process, hydrogen sulfide and short chain hydrocarbons such as methane,ethane,propane,butane and pentane are formed. The separation of gas from hydrotreated liquid hydrocarbons is achived using a stripper and a flash drum.High pressure stream of nitrgen is contained with the hydrotreated liquid hydrocarbon material.This high pressure stream strips the volatiles, i.e,hydrogen,the volatile hydrocarbons, hydrogen sulfide, and the like, from the oil. The gaseous stream is then separated and cooled to remove condensables, including primarily water, short chain hydrocarbons, and hydrogen sulfide in the water.The condensables are advantageously sent to the gasifer,where the hydrocarbons are gasified, the water moderates the gasifer temparature and increases the yeild of hydrogen, and wherehydrogen sulphide is routed with the produced synthesis gas to the acid gas removal process.