Hydrocarbon conversion with hot and cooled regenerated catalyst

Details Hydrocarbon conversion with hot and cooled regenerated catalyst Hydrocarbon conversion with hot and cooled regenerated catalyst

1986-02-24

1988-02-09

Chaudhuri, Olik

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 88, 208 91, 208159, C10G 1118

Patent

active

047240652

ABSTRACT:
An improved heat balanced hydrocarbon conversion process is disclosed of the type employing circulating solids between a riser reactor (contactor) and regenerator (combustor). The ratio of circulating solid to hydrocarbon feed (C/O or cat-oil ratio) is increased by: directly cooling a portion of hot freshly regenerated contact material; passing a portion of hot regenerated material into the steam stripper; cooling hot regenerated contact material and charging it to the riser downstream of charging uncooled hot regenerated material which charging hydrocarbon feed to the base of the riser along with lift gas or steam; or lifting hot regenerated contact material by a carbonizable lift gas into the riser before contacting it with hydrocarbon feed which is injected higher in the riser.

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patent: 4551229 (1985-11-01), Pecoraro et al.
patent: 4585544 (1986-04-01), Gartside et al.

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