Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Multi-stage process for deasphalting resid, removing catalyst fines from decanted oil and apparatus therefor

Patent ·
OSTI ID:7024555
This patent describes a method of deasphalting a hydrotreated resid and substantially removing cracking catalyst fines from decanted oil containing cracking catalyst fines. It comprises: mixing the decanted oil containing cracking catalyst fines with the hydrotreated resid, mixing a non aromatic C{sub 2} to C{sub 7} hydrocarbon solvent or mixtures thereof with the decanted oil-resid mixture in a first separator, feeding the decanted oil-resid mixture to the first separator, recovering a substantially deresined solvent-extracted asphaltene from the first separator, recovering a substantially deasphalted oil-solvent mixture from the first separator to a second separator, maintaining the temperature and pressure of the second separator temperature and pressure to solvent extract a substantially deasphalted oil and solvent from the substantially deasphalted oil-solvent mixture, recovering a substantially deasphalted oil containing cracking catalyst fines with less than 20 ppm silica and less than 20 ppm alumina, from the second separator, recovering solvent from the second separator, and recycling at least a portion of the solvent from the second separator to the first separator.
Assignee:
Amoco Corp., Chicago, IL (United States)
Patent Number(s):
US 5124027; A
Application Number:
PPN: US 7-616218
OSTI ID:
7024555
Country of Publication:
United States
Language:
English