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Title:
流動接触分解ユニットにおける異質流体の処理
Document Type and Number:
Japanese Patent JP5312796
Kind Code:
B2
Abstract:
An apparatus and method for processing different feeds in a fluid catalytic cracking unit are disclosed which result in improved yields of C3, C4 and gasoline range hydrocarbons as compared to conventional systems. The process comprises injecting a main hydrocarbon feed into a catalyst-containing riser reactor through a plurality of main feed injectors, and injecting a light hydrocarbon feed into the riser reactor at a location upstream from the main feed injectors and downstream from a control valve such as a regenerated catalyst slide valve, the light feed being injected in a region having a high density of catalyst particles. The light feed is injected in a dispersed way such the amount of feed injected corresponds to the density of catalyst particles at that particular point, with greater amounts of feed being injected at locations having a large number of catalyst particles. Also, a heavy hydrocarbon feed or a heavy recycle stream from the same FCC unit can be injected at the same elevation as the main feed injectors but through separate injectors.

Inventors:
Sonida Lip S
Castagnos Leon F
Application Number:
JP2007548518A
Publication Date:
October 09, 2013
Filing Date:
December 22, 2005
Export Citation:
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Assignee:
LUMMUS TECHNOLOGY INC.
International Classes:
C10G11/18
Domestic Patent References:
JP1294794A
JP11263984A
Foreign References:
US4832825
EP0323297A1
EP0259153A1
EP0849347A2
US6126813
US6613290
EP1013743A1
Attorney, Agent or Firm:
Katsuzo Asakura