Wells – Processes – In situ combustion
Patent
1980-10-20
1982-10-12
Leppink, James A.
Wells
Processes
In situ combustion
166261, 166267, 208 11R, E21B 43247, E21B 4334, E21B 4338
Patent
active
043534180
ABSTRACT:
Disclosed are a method and apparatus for the in situ retorting of oil shale and purification products comprising establishing an underground in situ retort containing a mass of rubblized matter comprising oil shale and establishing a flame front within the rubblized matter. Oxygen containing gas comprising at least about 90 weight percent oxygen and diluent are passed into the retort to support combustion and form combustion gases suitable for the retorting of the rubblized mass and formation of off-gas comprising hydrogen, hydrocarbons, and contaminants. Off-gas comprising hydrogen, hydrocarbons, and contaminants is recovered from the retort and hydrocarbons and contaminants are substantially separated from at least a portion of the off-gas to produce a purified gas stream comprising hydrogen. At least a portion of the purified gas stream is passed to one or more conversion zones wherein shale oil is contacted with a stream comprising purified gas stream in the presence of a conversion catalyst at conversion conditions so as to substantially reduce the amount of nitrogen and sulfur contained in the shale oil.
REFERENCES:
patent: 2370507 (1945-02-01), Teichmann et al.
patent: 2474345 (1949-06-01), Clark et al.
patent: 3139928 (1964-07-01), Broussard
patent: 3228467 (1966-01-01), Schlinger et al.
patent: 3233668 (1966-02-01), Hamilton et al.
patent: 3617470 (1971-11-01), Schlinger et al.
patent: 3794116 (1974-02-01), Higgins
patent: 4010092 (1977-03-01), Deering
patent: 4026357 (1977-05-01), Redford
patent: 4036299 (1977-07-01), Cha et al.
patent: 4043897 (1977-08-01), Deering
patent: 4087130 (1978-05-01), Garrett
patent: 4117886 (1978-10-01), Honaker
patent: 4153540 (1979-05-01), Gorring
patent: 4169506 (1979-10-01), Berry
patent: 4263970 (1981-04-01), Cha
patent: 4284139 (1981-08-01), Sweany
patent: 4306965 (1981-12-01), Hensley, Jr. et al.
Christian David R.
Hoekstra Gerald B.
Gulf Oil Corporation
Leppink James A.
Magidson William H.
McClain William T.
Standard Oil Company (Indiana)
LandOfFree
In situ retorting of oil shale does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with In situ retorting of oil shale, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In situ retorting of oil shale will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-219664