Abstract:
A hydrocarbon dehydrogenation process includes providing the hydrocarbon feed to a reactor. The hydrocarbon feed includes at least one hydrocarbon selected from light paraffins, heavy paraffins, or combinations thereof. The process further includes introducing an inert diluent into the feed stream, contacting the feed stream and the inert diluent with a catalyst in the reactor, and flowing an effluent stream out of the reactor.
Abstract:
Embodiments of methods for co-production of linear alkylbenzene and biofuel from a natural oil are provided. A method comprises the step of deoxygenating the natural oils to form a stream comprising paraffins. A first portion of the paraffins are dehydrogenated to provide mono-olefins. Then, benzene is alkylated with the mono-olefins under alkylation conditions to provide an alkylation effluent comprising alkylbenzenes and benzene. Thereafter, the alkylbenzenes are isolated to provide the alkylbenzene product. A second portion of the paraffins is processed to form biofuel.
Abstract:
Methods for co-processing a biorenewable feedstock and a petroleum distillate feedstock are provided. The petroleum distillate feedstock containing sulfur is reacted with hydrogen gas in the presence of a hydrotreating catalyst thereby forming an effluent mixture comprising hydrogen sulfide. A combined feed comprising the effluent mixture, optionally a recycle liquid, and the biorenewable feedstock is contacted with hydrogen gas in a reaction zone with a deoxygenation catalyst under reaction conditions to provide a reaction product comprising a hydrocarbon fraction. The combined feed comprises greater than 50 weight percent biorenewable feedstock.
Abstract:
1-butene is recovered as a purified product from an MTO synthesis and especially from an integrated MTO synthesis and hydrocarbon pyrolysis system in which the MTO system and its complementary olefin cracking reactor are combined with a hydrocarbon pyrolysis reactor in a way that facilitates the flexible production and recovery of olefins and other petrochemical products, particularly butene-1 and MTBE.
Abstract:
The present invention provides a reactor system (10) having: (1) a plurality of reactors (12) connected in fluid flow communication and having at least one pair of reactors (12a,b) separated by an interstage position (33); (2) a line (25) for supplying a reactant feed stream separately to an inlet (21) of more than one of the plurality of reactors (12a,b); and (3) a diverter (30) in fluid communication with the interstage position (33) and capable of directing a first portion of a product stream (32a) exiting one reactor (12a) in said pair of reactors (12a,b) to a first location (40) and a second portion of the product flow stream to an inlet (21b) of another reactor (12b) in said pair of reactors (12a,b).
Abstract:
Processing schemes and arrangements are provided for producing light olefins from an oxygenate-containing feedstock and using methanol-water mixtures to recover oxygenates such as for further processing to form additional light olefins.
Abstract:
Processes for making C X to C Y olefins are provided. The processes include reacting a feedstock comprising C 5 and C 6 olefins under dimerization or oligomerization conditions to provide a dimerization or oligomerization product. The product is separated into a stream comprising unreacted C 5 and C 6 paraffins, a stream comprising C 10 to C X-1 olefins, and a stream comprising C X to C Y olefins, wherein X is at least 14 and Y is greater than X and less than or equal to 36.
Abstract:
1-butene is recovered as a purified product from an MTO synthesis and especially from an integrated MTO synthesis and hydrocarbon pyrolysis system in which the MTO system and its complementary olefin cracking reactor are combined with a hydrocarbon pyrolysis reactor in a way that facilitates the flexible production and recovery of olefins and other petrochemical products, particularly butene-1 and MTBE.
Abstract:
Processes for controlling afterburn in a reheater and loss of entrained solid particles in reheater flue gas are provided. Carbonaceous biomass feedstock is pyrolyzed using a heat transfer medium forming pyrolysis products and a spent heat transfer medium comprising combustible solid particles. The spent heat transfer medium is introduced into a fluidizing dense bed. The combustible solid particles of the spent heat transfer medium are combusted forming combustion product flue gas in a dilute phase above the fluidizing dense bed. The combustion product flue gas comprises flue gas and solid particles entrained therein. The solid particles are separated from the combustion product flue gas to form separated solid particles. At least a portion of the separated solid particles are returned to the fludizing dense bed.
Abstract:
In the present invention, pyrolysis oil is processed in a well mixed or a back mixed reactor to prevent the plugging up of a reactor that otherwise occurs. The pyrolysis oil can then be further upgraded in a hydroprocessing reactor through use of an appropriate catalyst.