Patent classifications
C10G49/08
ENHANCING LIGHT OILEFINS YIELD IN CRUDE OIL REFINING WITH STEAM CRACKING RECYCLING AND DEEP HYDROGENATION
Crude oil obtained from a subterranean formation is fractionated to separate an atmospheric residue stream from the crude oil. At least a portion of the atmospheric residue stream is fractionated to separate a vacuum residue stream from the atmospheric residue stream. A feedstock including the vacuum residue stream, a second portion of the atmospheric residue stream, or both are upgraded to produce a middle distillate stream. At least a portion of the middle distillate stream is hydrogenated to produce a hydrogenated stream. Carbon-carbon bonds of the hydrogenated stream are broken in the presence of steam to produce a mixed gas product including light olefins and a liquid product. The liquid product is recycled to deep hydrogenation.
ENHANCING LIGHT OILEFINS YIELD IN CRUDE OIL REFINING WITH STEAM CRACKING RECYCLING AND DEEP HYDROGENATION
Crude oil obtained from a subterranean formation is fractionated to separate an atmospheric residue stream from the crude oil. At least a portion of the atmospheric residue stream is fractionated to separate a vacuum residue stream from the atmospheric residue stream. A feedstock including the vacuum residue stream, a second portion of the atmospheric residue stream, or both are upgraded to produce a middle distillate stream. At least a portion of the middle distillate stream is hydrogenated to produce a hydrogenated stream. Carbon-carbon bonds of the hydrogenated stream are broken in the presence of steam to produce a mixed gas product including light olefins and a liquid product. The liquid product is recycled to deep hydrogenation.
Method for producing renewable gas, renewable naphtha, and renewable jet fuel
The present invention relates to a method for producing renewable gas D, renewable naphtha E, and renewable jet fuel F or components thereto from a renewable feedstock A, in particular to methods comprising separate hydrodeoxygenation (20) and hydroisomerization steps (40) wherein the hydroisomerization is performed in the presence of a metal impregnated ZSM-23 catalyst.
Method for producing renewable gas, renewable naphtha, and renewable jet fuel
The present invention relates to a method for producing renewable gas D, renewable naphtha E, and renewable jet fuel F or components thereto from a renewable feedstock A, in particular to methods comprising separate hydrodeoxygenation (20) and hydroisomerization steps (40) wherein the hydroisomerization is performed in the presence of a metal impregnated ZSM-23 catalyst.
Two stage fixed-bed catalytic process for upgrading pyrolysis oil to BTX
Systems for upgrading pyrolysis oil include a first fixed-bed reactor having a first catalyst bed and a second catalyst bed. The first catalyst bed includes: a first treating catalyst containing alumina, binder, Mo, Ni, and P; a second treating catalyst made of Al.sub.2O.sub.3, SiO.sub.2, ZrO.sub.2, NiO, and WO.sub.3; or both. The second catalyst bed includes mixed metal oxide catalyst. The first fixed-bed reactor contacts the pyrolysis oil with hydrogen in the presence of the treating catalyst and the mixed metal oxide catalyst to produce an intermediate stream comprising light aromatic compounds. The system includes a second fixed-bed reactor downstream that includes a mesoporous supported metal catalyst having nickel and tungsten on a mesoporous support. The second fixed-bed reactor contacts the intermediate stream with hydrogen in the presence of the mesoporous supported metal catalyst to produce a second reactor effluent comprising aromatic compounds having six to eight carbon atoms.
METHOD FOR REGENERATING A CATALYST FOR PROCESSING REACTIVE FEEDSTOCK
A process for regeneration of a process enclosure and a catalyst comprising precipitated ammonium salts, and a process and a process plant for continuous hydrotreating a feedstock comprising nitrogen and halides.
METHOD FOR REGENERATING A CATALYST FOR PROCESSING REACTIVE FEEDSTOCK
A process for regeneration of a process enclosure and a catalyst comprising precipitated ammonium salts, and a process and a process plant for continuous hydrotreating a feedstock comprising nitrogen and halides.
METHOD FOR PRODUCING HYDROISOMERIZED AND/OR HYDROCRACKED HYDROCARBONS WITH HIERARCHICAL ZEOLITIC MATERIALS
Methods for converting hydrocarbonaceous feedstocks to value added products via a hydroisomerization/hydrocracking catalyst that contains at least two or more zeolitic materials comprising hierarchical porosity, each material having a mesostructure between 2-50 nm are described. Specifically, the improved acid function in these catalysts is obtained by mesoporizing a first zeolite and blending the mesoporized first zeolite with an as-synthesized mesoporous second zeolite; or mesoporizing a first zeolite; mesoporizing a second zeolite, and blending the mesoporized first zeolite with the mesoporized second zeolite; or blending a first zeolite and a second zeolite; and mesoporizing the blend of the first zeolite and the second zeolite; wherein the first zeolite comprises Y zeolite, and the second zeolite comprises a one-dimensional, 10-ring zeolite.
METHOD FOR PRODUCING HYDROISOMERIZED AND/OR HYDROCRACKED HYDROCARBONS WITH HIERARCHICAL ZEOLITIC MATERIALS
Methods for converting hydrocarbonaceous feedstocks to value added products via a hydroisomerization/hydrocracking catalyst that contains at least two or more zeolitic materials comprising hierarchical porosity, each material having a mesostructure between 2-50 nm are described. Specifically, the improved acid function in these catalysts is obtained by mesoporizing a first zeolite and blending the mesoporized first zeolite with an as-synthesized mesoporous second zeolite; or mesoporizing a first zeolite; mesoporizing a second zeolite, and blending the mesoporized first zeolite with the mesoporized second zeolite; or blending a first zeolite and a second zeolite; and mesoporizing the blend of the first zeolite and the second zeolite; wherein the first zeolite comprises Y zeolite, and the second zeolite comprises a one-dimensional, 10-ring zeolite.