PROCESS FOR SIMULTANEOUS HYDROTREATING AND SPLITTING OF NAPHTHA STREAMS

摘要

A process for concurrently fractionating and hydrotreating of a full range naphtha stream. The full boiling range naphtha stream (1) is subjected to simultaneous hydrodesulfurization and splitting into a light boiling range naphtha (3) and a heavy boiling range naphtha (19), which have been treated to covert mercaptans in the fractions to H2S, which is separated with and separated from the light naphtha wherein the improvement is a further hydrodesulfurization by contacting the light boiling range naphtha with hydrogen in countercurrent flow in a fixed bed of hydrodesulfurization catalyst (15) to remove recombinant mercaptans which are formed by the reverse reaction of H2S with olefins in the naphtha during the initial hydrodesulfurization.