Down-flow hydrogenation processing and multi-stage up-flow in a non-contact remove impurities of up-flow stage steam

摘要

(57) cocurrent upflow hydrotreating reaction stage one, air hydrotreating process for removing impurities from the raw material consisting of [Abstract] hydrocarbonaceous liquid, at least - liquid contacting stage and downflow hydrogenation consisting of treatment reaction stage. And hydrogen feed, to produce a vapor effluent and a liquid which reacts upflow stage, partially hydrotreated. The steam contacts the hydrocarbonaceous liquid in the contacting stage, where impurities are transferred from vapor to liquid. The contact liquid impurities is increased, it reacts with hydrogen in the downflow reaction stage liquid effluent is mixed with the upflow stage liquid effluent, is combined may form a vapor effluent and product liquid hydrotreated is. Any of the vapor effluent downflow stage and contacting stage liquid product or another, both cooling and recovered by condensation.