PROCESS FOR THE DESULFURIZATION OF A LIGHT FCC NAPHTHA
摘要
A process for the desulfurization of a light boiling range (C5-350 DEG F) fluid catalytically cracked naphtha, which may be first subjected to a thioetherification to react the diolefins with mercaptans contained in it to form sulfides, is fed to a high pressure (>250 psig) catalytic distillation hydrodesulfurization step along with hydrogen under conditions to react most of the organic sulfur compounds, including sulfides from the thioetherification to from H2S. The H2S and a light product stream (C5's and C6's) are removed as overheads. The bottoms from the catalytic distillation hydrodesulfurization step is fractionated and the bottoms from the fractionation contacted with hydrogen in a straight pass hydrogenation step in the presence of a hydrodesulfurization catalyst at pressure of >250 and temperature >400 DEG F to further reduce the sulfur content.
申请公布号
WO03025095(A2)
申请公布日期
2003.03.27
申请号
WO2002US22464
申请日期
2002.07.11
申请人
CATALYTIC DISTILLATION TECHNOLOGIES;VICHAILAK, MONTRI;KLUSSMAN, BERTRAND;MARASCHINO, MARIO, J.
发明人
VICHAILAK, MONTRI;KLUSSMAN, BERTRAND;MARASCHINO, MARIO, J.