Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Patent
1998-05-06
2000-11-28
Griffin, Walter D.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
208 61, 208 89, 208 57, 208 60, 208 62, 208 66, 208107, C10G 6500
Patent
active
061530867
ABSTRACT:
A hydroprocessing process includes a cocurrent flow liquid reaction stage, a countercurrent flow liquid reaction stage and a vapor reaction stage in which feed components are catalytically hydroprocessed by reacting with hydrogen. Both liquid stages both produce a liquid and a vapor effluent, with the cocurrent stage liquid effluent the feed for the countercurrent stage and the countercurrent stage liquid effluent the hydroprocessed product liquid. Both liquid stage vapor effluents are combined and catalytically reacted with hydrogen in a vapor reaction stage, to form a hydroprocessed vapor. This vapor is cooled to condense and recover a portion of the hydroprocessed hydrocarbonaceous vapor components as additional product liquid. The uncondensed vapor is rich in hydrogen and is cleaned up if necessary, to remove contaminants, and then recycled back into the cocurrent stage as hydrogen-containing treat gas. Fresh hydrogen is introduced into the countercurrent stage and the countercurrent stage effluent contains sufficient, and preferably all of the hydrogen for the vapor stage reaction.
REFERENCES:
patent: 2952626 (1960-09-01), Kelley et al.
patent: 2987467 (1961-06-01), Keith et al.
patent: 3017345 (1962-01-01), Eastman et al.
patent: 3228871 (1966-01-01), Schlinger
patent: 3788976 (1974-01-01), Kirk et al.
patent: 3905893 (1975-09-01), Christman et al.
patent: 4021330 (1977-05-01), Satchell
patent: 4212726 (1980-07-01), Mayes
patent: 4244519 (1981-01-01), Schorfheide
patent: 4457834 (1984-07-01), Caspers et al.
patent: 4591426 (1986-05-01), Krasuk et al.
patent: 4801373 (1989-01-01), Corman et al.
patent: 5082551 (1992-01-01), Reynolds et al.
patent: 5292428 (1994-03-01), Harrison et al.
patent: 5348641 (1994-09-01), Shih
patent: 5670116 (1997-09-01), Gupta et al.
patent: 5705052 (1998-01-01), Gupta
patent: 5720872 (1998-02-01), Gupta
patent: 5779992 (1998-07-01), Higashi
patent: 5888377 (1999-03-01), Bertram
patent: 5906728 (1999-05-01), Iaccino et al.
patent: 5925235 (1999-07-01), Habib
Ellis Edward S.
Gupta Ramesh
Iaccino Larry L.
Jung Henry
Schorfheide James J.
Exxon Research and Engineering Company
Griffin Walter D.
Hughes Gerard J.
Naylor Henry E.
Preisch Nadine
LandOfFree
Combination cocurrent and countercurrent staged hydroprocessing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Combination cocurrent and countercurrent staged hydroprocessing , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combination cocurrent and countercurrent staged hydroprocessing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1721204