Methods of cracking a crude product to produce additional crude products
First Claim
1. A method for producing hydrocarbons, comprising:
- providing heat from one or more heaters to a subsurface formation to heat at least a portion of the formation;
producing formation fluid from a portion of the subsurface formation;
separating the formation fluid to produce a liquid stream;
catalytically cracking at least a portion of the liquid stream in a first catalytic cracking system by contacting the liquid stream with a catalytic cracking catalyst to produce a crude product stream and a spent catalytic cracking catalyst;
regenerating at least a portion of the spent catalytic cracking catalyst to produce a regenerated cracking catalyst;
catalytically cracking a stream comprising gasoline hydrocarbons in a second catalytic cracking system by contacting the stream comprising gasoline hydrocarbons with at least a portion of the regenerated catalytic cracking catalyst to produce a second crude product stream, the second crude product stream comprising a used regenerated cracking catalyst and hydrocarbons having a carbon number of at least 2, wherein at least 30% by weight of the hydrocarbons having a carbon number of at least 2 are olefins;
separating at least some olefins from the second crude product stream, wherein the separated olefins have carbon numbers from 2 to 5; and
providing at least a portion of the used regenerated cracking catalyst from the second catalytic cracking system to the first catalytic cracking system.
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Accused Products
Abstract
A method for producing a crude product is disclosed. Formation fluid is produced from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a first gas stream. The first gas stream includes olefins. The liquid stream is fractionated to produce one or more crude products. At least one of the crude products has a boiling range distribution from 38° C. and 343° C. as determined by ASTM Method D5307. The crude product having the boiling range distribution from 38° C. and 343° C. is catalytically cracked to produce one or more additional crude products. At least one of the additional crude products is a second gas stream. The second gas stream has a boiling point of at most 38° C. at 0.101 MPa.
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Citations
19 Claims
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1. A method for producing hydrocarbons, comprising:
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providing heat from one or more heaters to a subsurface formation to heat at least a portion of the formation; producing formation fluid from a portion of the subsurface formation; separating the formation fluid to produce a liquid stream; catalytically cracking at least a portion of the liquid stream in a first catalytic cracking system by contacting the liquid stream with a catalytic cracking catalyst to produce a crude product stream and a spent catalytic cracking catalyst; regenerating at least a portion of the spent catalytic cracking catalyst to produce a regenerated cracking catalyst; catalytically cracking a stream comprising gasoline hydrocarbons in a second catalytic cracking system by contacting the stream comprising gasoline hydrocarbons with at least a portion of the regenerated catalytic cracking catalyst to produce a second crude product stream, the second crude product stream comprising a used regenerated cracking catalyst and hydrocarbons having a carbon number of at least 2, wherein at least 30% by weight of the hydrocarbons having a carbon number of at least 2 are olefins; separating at least some olefins from the second crude product stream, wherein the separated olefins have carbon numbers from 2 to 5; and providing at least a portion of the used regenerated cracking catalyst from the second catalytic cracking system to the first catalytic cracking system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for producing hydrocarbons, comprising:
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providing heat from one or more heaters to a subsurface formation to heat at least a portion of the formation; producing formation fluid from a portion of the subsurface formation; separating the formation fluid to produce a liquid stream; catalytically cracking at least a portion of the liquid stream in a first catalytic cracking system by contacting the liquid stream with a catalytic cracking catalyst to produce a crude product stream and a spent catalytic cracking catalyst; regenerating at least a portion of the spent catalytic cracking catalyst to produce a regenerated cracking catalyst; catalytically cracking one or more hydrocarbon streams in a second catalytic cracking system by contacting at least one of the hydrocarbon streams with at least a portion of the regenerated catalytic cracking catalyst to produce a second crude product stream, the second crude product stream comprising a used regenerated cracking catalyst and hydrocarbons having a carbon number of at least 2, wherein at least 30% by weight of the hydrocarbons having a carbon number of at least 2 are olefins, and wherein at least one of the hydrocarbon streams comprises hydrocarbons having a boiling point range from about 32°
C. to about 204°
C. as determined by ASTM Method D2887;separating at least some olefins from the second crude product stream, wherein the separated olefins have carbon numbers from 2 to 5; and providing at least a portion of the used regenerated cracking catalyst from the second catalytic cracking system to the first catalytic cracking system. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification