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Title: Process for reducing Ramsbottom Carbon Test of long residues

Patent ·
OSTI ID:6483489

Process for the preparation of a heavy oil with a low Ramsbottom Carbon Test (RCT) from a long residue by (a) catalytic hydrotreatment for RCT reduction at such severity that the C/sub 4/- gas production per percentage RCT reduction is kept between defined limits, followed by (b) solvent deasphalting of the (vacuum or atmospheric) distillation residue of the hydrotreated product.

Assignee:
Shell Oil Company (Netherlands)
Patent Number(s):
US 4460456
OSTI ID:
6483489
Resource Relation:
Patent Priority Date: Priority date 15 Jun 1982, Netherlands; Other Information: PAT-APPL-388776
Country of Publication:
United States
Language:
English