发明名称 |
Multi-stage hydrodesulfurization of cracked naphtha streams with interstage fractionation |
摘要 |
A process for the selective hydrodesulfurization of olefinic naphtha streams containing a substantial amount of organically bound sulfur and olefins. The olefinic naphtha stream is selectively hydrodesulfurized in a first sulfur removal stage and resulting product stream, which contains hydrogen sulfide and organosulfur is fractionated at a temperature to produce a light fraction containing less than about 100 wppm organically bound sulfur and a heavy fraction containing greater than about 100 wppm organically bound sulfur. The light fraction is stripped of at least a portion ofits hydrogen sulfide and can be collected or passed to gasoline blending. The heavy fraction is passed to a second sulfur removal stage wherein at least a portion of any remaining organically bound sulfur is removed. |
申请公布号 |
US6913688(B2) |
申请公布日期 |
2005.07.05 |
申请号 |
US20020274021 |
申请日期 |
2002.10.18 |
申请人 |
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY |
发明人 |
COKER JOHN C.;BRIGNAC GARLAND B.;HALBERT THOMAS R.;MATRAGRANO JOHN G.;GUPTA BRIJ;WELCH ROBERT C.;WINTER, JR. WILLIAM E. |
分类号 |
B01J23/88;C10G45/08;C10G45/12;C10G65/04;(IPC1-7):C10G65/00 |
主分类号 |
B01J23/88 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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