Upgrading heavy crude oils to lighter products with a dispersed

Details Upgrading heavy crude oils to lighter products with a dispersed Upgrading heavy crude oils to lighter products with a dispersed

1984-06-04

1985-08-20

Gantz, D. E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208152, 208154, C10G 1105

Patent

active

045362823

ABSTRACT:
This invention provides a process for upgrading a variety of hydrocarbon oils including low-grade crudes and fractions thereof. In this process, a hydrocarbon oil having an ASTM 50% temperature not higher than 550.degree. F. is converted at low temperature and pressure to more volatile products by a dispersion of crystalline zeolite catalysts having a silica: alumina ratio of at least 12 and a C.I. within 1-12. Initially, 0.02-10 wt % of the catalyst is dispersed in the feed until the catalyst inventory in the reactor stage accumulates. Thereafter, catalyst is added and removed to maintain a total catalyst content not greater than about 35 wt % of the feed in the reactor.

REFERENCES:
patent: 2303083 (1942-11-01), Kuhl
patent: 4054510 (1977-10-01), Parker
patent: 4119530 (1978-10-01), Czajkowski et al.
patent: 4251348 (1981-02-01), O'Rear et al.
patent: 4263126 (1981-04-01), Rollmann
patent: 4416766 (1983-11-01), Mulaskey
patent: 4446007 (1984-05-01), Smith

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