Upgrading of heavy hydrocarbons

Details Upgrading of heavy hydrocarbons Upgrading of heavy hydrocarbons

1980-12-22

1982-08-31

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 56, 48197R, 48204, 252373, C10B 4700, C01B 214, C10G 1322

Patent

active

043471200

ABSTRACT:
Heavy hydrocarbonaceous materials are converted to distillate products and pitch in a hydrogen donor diluent cracking process, and the pitch is utilized as feed to a delayed coker. Green coke is calcined in a vertical shaft kiln, and steam is injected into the bottom of the kiln to produce hydrogen by reaction of steam with coke. The hydrogen is drawn from the kiln and used to hydrogenate recycle donor solvent for the cracking step. High sulfur coke can be desulfurized in the kiln, and distillate products in addition to donor solvent can be hydrotreated using hydrogen from the kiln.

REFERENCES:
patent: 2917451 (1959-12-01), Leffer
patent: 3617513 (1971-11-01), Wilson et al.
patent: 3676517 (1972-07-01), Merrill, Jr. et al.
patent: 4039426 (1977-08-01), Schutte
patent: 4115246 (1978-09-01), Sweany
patent: 4155832 (1979-05-01), Cox et al.
patent: 4178229 (1979-12-01), McConaghy et al.
patent: 4284139 (1981-08-01), Sweany

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