发明名称 |
A CATALYTIC CRACKING PROCESS |
摘要 |
In a catalytic cracking process for a heavy feed comprising non-distillable and distillable hydrocarbons, the feed is initially fractionated into a heavy fraction comprising at least 10 % by weight non-distillable hydrocarbons and at least one lighter fraction containing distillable hydrocarbons. The heavy fraction is then contacted with hot regenerated cracking catalyst in a first zone of a riser reactor at a catalyst:feed weight ratio of a least 5:1 and a temperature of at least 565 DEG C (1050 DEG F), such that the heavy fraction undergoes both thermal and catalytic reactions. The catalyst/feed mixture is then quenched in a quench zone of said riser reactor within 2 seconds of said contacting step with an amount of the lighter fraction at least equal to 100 wt.% of said non-distillable hydrocarbons added to said first zone. Catalytically cracked products and spent cracking catalyst are subsequently removed from the riser reactor, the spent cracking catalyst is regenerated in a catalyst regeneration zone to produce hot regenerated cracking catalyst which is recycled to contact said heavy fraction and cracked products are recovered.
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申请公布号 |
WO9513337(A1) |
申请公布日期 |
1995.05.18 |
申请号 |
WO1993US10781 |
申请日期 |
1993.11.09 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
KRAMBECK, FREDERICK, JOHN;NACE, DONALD, MILLER;SCHIPPER, PAUL, HERBERT;SAPRE, AJIT, VISHWANATH |
分类号 |
C10G11/00;C10G11/18;(IPC1-7):C10G11/00 |
主分类号 |
C10G11/00 |
代理机构 |
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