发明名称 |
USE OF DUAL-FUNCTION LIFT GAS IN A FCC REACTOR RISER |
摘要 |
<p>A process for converting normally liquid hydrocarbons with an active fluid catalytic cracking catalyst which comprises: (a) passing an upflowing suspension of hot regenerated active fluid catalytic cracking catalyst in a lift gas comprising hydrocarbons including not more than 10 mole % C3 and heavier hydrocarbons through a lower portion of a vertically orientated riser conversion zone at a velocity of from about 1.8 to less than 12.2 meters per second, and for a residence time from about 0.5 to about 15 seconds, the ratio of catalyst to hydrocarbon in said lift gas being greater than 80; and (b) introducing the normally liquid hydrocarbons into the upflowing suspension at a locus in the riser conversion zone downstream of the lower portion to form a catalyst-hydrocarbon mixture wherein the temperature and residence time are sufficient to effect the desired conversion. The process is particularly useful for the treatment of a heavy residual feedstock.</p> |
申请公布号 |
EP0154676(A3) |
申请公布日期 |
1986.01.22 |
申请号 |
EP19840110649 |
申请日期 |
1984.09.07 |
申请人 |
UOP INC. |
发明人 |
HAMMERSCHAIMB, HAROLD ULRICH;LOMAS, DAVID ALFRED |
分类号 |
C10G11/18;(IPC1-7):C10G11/18;C10G47/30 |
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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