发明名称 |
METHOD OF OPERATING CRUDE TREATMENT SYSTEM |
摘要 |
Crude containing a comparatively large content of nickel, vanadium, or carbon residue is treated so as to supply a raw material to a downstream catalytic cracking process, A primary distillation tower fractionates first crude into a residue fraction partly used as raw oil of a catalytic cracking process and other fractions. A secondary distillation tower fractionates second crude containing a larger content of a catalytic poison with respect to catalysts used in the catalytic cracking process than the first crude into a light fraction included in a distillation temperature range of the other fractions and a heavy fraction as a rest thereof. A light fraction supply line supplies the light fraction to the primary distillation tower so as to be treated in the primary distillation tower. |
申请公布号 |
US2015275100(A1) |
申请公布日期 |
2015.10.01 |
申请号 |
US201414224280 |
申请日期 |
2014.03.25 |
申请人 |
JGC CORPORATION |
发明人 |
SAWAI Naoaki;Mizuguchi Yoshihiro |
分类号 |
C10G7/08 |
主分类号 |
C10G7/08 |
代理机构 |
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代理人 |
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主权项 |
1. A method for operating a crude treatment system comprising:
supplying first crude from a supply line to a primary distillation tower; fractionating the first crude by the primary distillation tower into a residue fraction and other fractions, the residue fraction being partly or entirely used as raw oil of a catalytic cracking process; supplying second crude containing a larger content of a catalytic poison with respect to catalysts used in the catalytic cracking process than the first crude from a second crude supply line to a secondary distillation tower; fractionating the second crude by the secondary distillation tower into a light fraction and a heavy fraction as a rest thereof, the light fraction having a distillation temperature range within a distillation temperature range of the other fractions fractionated in the primary distillation tower; and supplying the light fraction from a light fraction supply line to the primary distillation tower so as to be treated. |
地址 |
TOKYO JP |