发明名称 |
OPERATING METHOD FOR FLUID CATALYTIC CRACKING |
摘要 |
The present invention is directed to a Fluid Catalytic Cracking process conducted under fluid catalytic cracking conditions by injecting into at least one reaction zone of a fluid catalytic cracking unit (FCCU) having one or more risers, a plurality of feeds wherein said plurality of feeds comprises at least one feed ( alpha ) and at least another feed ( beta ) wherein said feeds ( alpha ) and ( beta ) (a) differ in Conradson Carbon Residue by at least about 2 wt % points; or (b) differ in hydrogen content by at least about 0.2 wt %; or (c) differ in API gravities by at least about 2 points; or (d) differ in nitrogen content by at least about 50 ppm; or (e) differ in carbon-to-hydrogen ratio by at least about 0.3; or (f) differ in mean boiling point by at least about 200 DEG F; and wherein said feeds ( alpha ) and ( beta ) are alternately injected and wherein said alternate injection maintains said risers in a cyclic steady state, while the rest of the FCC unit is in a steady state.
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申请公布号 |
WO9955802(A1) |
申请公布日期 |
1999.11.04 |
申请号 |
WO1999US08648 |
申请日期 |
1999.04.20 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
HO, TEH, CHUNG;FUNG, SHUN, CHONG;LETA, DANIEL, PAUL |
分类号 |
C10G11/18;(IPC1-7):C10G11/18 |
主分类号 |
C10G11/18 |
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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