A process for producing propylene and cumene comprising converting plastics to hydrocarbon liquid and pyrolysis gas in pyrolyzer; feeding hydrocarbon liquid to hydroprocessor to yield hydrocarbon product and first gas stream; introducing hydrocarbon product to second separator to produce first C.sub.6 aromatics and refined product; feeding refined product to steam cracker to produce steam cracker product; introducing steam cracker product to third separator to produce second C.sub.6 aromatics, third propylene stream, second C.sub.2&C.sub.4 unsaturated stream, C.sub.1-4 saturated gas, and balance hydrocarbons product; introducing pyrolysis gas and/or first gas stream to first separator to produce first propylene stream, first C.sub.2&C.sub.4 unsaturated stream, and saturated gas stream; feeding first and/or second C.sub.2&C.sub.4 unsaturated stream to metathesis reactor to produce second propylene stream; feeding first and/or second C.sub.6 aromatics, and first, second, and/or third propylene stream to alkylation unit to produce cumene; and conveying balance hydrocarbons product to pyrolyzer and/or hydroprocessor.

A power system comprises an engine configured to combust an air/fuel mixture and produce a flow of exhaust gas; an exhaust passageway fluidly connected to the engine to receive the flow of exhaust gas; an exhaust gas recirculation loop fluidly connecting the exhaust passageway to a fuel intake for the engine; a first conversion zone containing a fuel reforming catalyst located within the exhaust gas recirculation loop; and a second conversion zone located within the exhaust gas recirculation loop separate from and downstream of the first conversion zone stream, the second conversion zone containing a fuel cracking catalyst.

Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650? F. (343? C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.

Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650? F. (343? C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.

The present subject matter relates to a process of producing lighter distillates. The hydrocarbons in the presence of organometallic catalyst are reacted with hydrogen leading to hydrotreating and/or hydrocracking reactions. The metals present in product are subsequently captured the metal capture unit.

The present subject matter relates to a process of producing lighter distillates. The hydrocarbons in the presence of organometallic catalyst are reacted with hydrogen leading to hydrotreating and/or hydrocracking reactions. The metals present in product are subsequently captured the metal capture unit.

A process for upgrading vacuum residuum and vacuum gas oil hydrocarbons is disclosed. The process may include: contacting a heavy distillate hydrocarbon fraction and hydrogen with a zeolite selective hydrocracking catalyst in a first ebullated bed hydrocracking reaction zone to convert at least a portion of the vacuum gas oil to lighter hydrocarbons. Contacting a residuum hydrocarbon fraction and hydrogen with a non-zeolite base metal hydroconversion catalyst in a second ebullated bed hydroconversion reaction zone may produce a vapor stream containing unconverted hydrogen, acid gases and volatilized hydrocarbons which may be fed along with the vacuum gas oil in the first ebullated bed hydrocracking zone.

A process for upgrading vacuum residuum and vacuum gas oil hydrocarbons is disclosed. The process may include: contacting a heavy distillate hydrocarbon fraction and hydrogen with a zeolite selective hydrocracking catalyst in a first ebullated bed hydrocracking reaction zone to convert at least a portion of the vacuum gas oil to lighter hydrocarbons. Contacting a residuum hydrocarbon fraction and hydrogen with a non-zeolite base metal hydroconversion catalyst in a second ebullated bed hydroconversion reaction zone may produce a vapor stream containing unconverted hydrogen, acid gases and volatilized hydrocarbons which may be fed along with the vacuum gas oil in the first ebullated bed hydrocracking zone.

A process for hydrodealkylating a hydrocarbon stream comprising (a) contacting the hydrocarbon stream with a hydroprocessing catalyst in a hydroprocessing reactor in the presence of hydrogen to yield a hydrocarbon product, wherein the hydrocarbon stream contains C.sub.9+ aromatic hydrocarbons; and (b) recovering a treated hydrocarbon stream from the hydrocarbon product, wherein the treated hydrocarbon stream comprises C.sub.9+ aromatic hydrocarbons, wherein an amount of C.sub.9+ aromatic hydrocarbons in the treated hydrocarbon stream is less than an amount of C.sub.9+ aromatic hydrocarbons in the hydrocarbon stream due to hydrodealkylating of at least a portion of C.sub.9+ aromatic hydrocarbons from the hydrocarbon stream during the step (a) of contacting.

The present invention provides a process for upgrading a Fischer-Tropsch product by hydrocracking in the presence of a hydrocracking catalyst in a reactor, wherein the process is initiated by a series of steps (i) to (iv). The hydrocracking catalyst is (i) contacted with a hydrogen-containing stream having a feed temperature of from 360 C. to 420 C.; (ii) the feed temperature of the hydrogen-containing stream is reduced to a temperature of from 220 C. to 280 C.; (iii) the catalyst is contacted with a Fischer-Tropsch product stream having a feed temperature of from 220 C. to 280 C., which is co-fed with the hydrogen-containing stream; and (iv) the catalyst is co-fed with a Fischer-Tropsch product stream and hydrogen-containing stream having feed temperatures of from 380 C. and 400 C. for at least four days and wherein the hydrocracking catalyst is not activated by sulfiding.