A process for the production of middle distillates by the catalytically promoted hydration of olefinic compounds having a carbon number ranging from 7 to 14 to convert the olefins to the corresponding mixed alcohols having a higher boiling point that is in the diesel range, the process being conducted in a continuous stirred tank reactor, e.g., an ebullated-bed reactor, utilizing catalysts that include soluble homogeneous acidic compounds and solid heterogeneous compounds such as resins, and amorphous or structured metal oxides containing elements selected from IUPAC Groups 4-10, 13 and 14, and having Lewis or Bronsted acid sites.

A process for the production of middle distillates by the catalytically promoted hydration of olefinic compounds having a carbon number ranging from 7 to 14 to convert the olefins to the corresponding mixed alcohols having a higher boiling point that is in the diesel range, the process being conducted in a continuous stirred tank reactor, e.g., an ebullated-bed reactor, utilizing catalysts that include soluble homogeneous acidic compounds and solid heterogeneous compounds such as resins, and amorphous or structured metal oxides containing elements selected from IUPAC Groups 4-10, 13 and 14, and having Lewis or Bronsted acid sites.

Systems and methods include an aromatics complex (ARC), the ARC in fluid communication with a naphtha reforming unit (NREF) and operable to receive a reformate stream produced by the NREF, and the ARC further operable to separate the reformate stream into a gasoline pool stream, an aromatics stream, and an aromatic bottoms stream; and a hydrodearylation unit operable to receive heavy, non-condensed, alkyl-bridged, multi-aromatic compounds from the aromatic bottoms stream, the hydrodearylation unit further operable to hydrogenate and hydrocrack the heavy, non-condensed, alkyl-bridged, multi-aromatic compounds to produce a stream suitable for recycle to the NREF or the reformate stream, where the hydrodearylation unit is further operable to receive hydrogen produced in the NREF.

Systems and methods include an aromatics complex (ARC), the ARC in fluid communication with a naphtha reforming unit (NREF) and operable to receive a reformate stream produced by the NREF, and the ARC further operable to separate the reformate stream into a gasoline pool stream, an aromatics stream, and an aromatic bottoms stream; and a hydrodearylation unit operable to receive heavy, non-condensed, alkyl-bridged, multi-aromatic compounds from the aromatic bottoms stream, the hydrodearylation unit further operable to hydrogenate and hydrocrack the heavy, non-condensed, alkyl-bridged, multi-aromatic compounds to produce a stream suitable for recycle to the NREF or the reformate stream, where the hydrodearylation unit is further operable to receive hydrogen produced in the NREF.

The present disclosure relates to a process for the deolefinization of hydrocarbon streams through an aromatic alkylation reaction by olefins, using a catalyst containing a framework-substituted zirconium and/or titanium and/or hafnium-modified ultra-stable Y (USY) type zeolite.

A naphtha hydrotreating process involves the use of a sulfur guard bed (SGB) with a controlled bypass which allows for control of the sulfur in the feed to a downstream processing unit. The SGB is installed on the light ends stripper bottoms stream in a naphtha hydrotreating unit.

A naphtha hydrotreating process involves the use of a sulfur guard bed (SGB) with a controlled bypass which allows for control of the sulfur in the feed to a downstream processing unit. The SGB is installed on the light ends stripper bottoms stream in a naphtha hydrotreating unit.

Processes for catalytic reforming of a hydrocarbon feedstock may include contacting the hydrocarbon feedstock with catalyst in a first reforming unit to produce a first effluent and used catalyst. The method may further include passing a portion of the first effluent directly to a second reforming unit and contacting the first effluent with catalyst to produce a second effluent and used catalyst. The method may also include passing a portion of the second effluent directly to a third reforming unit and contacting the second effluent with catalyst to produce a reformate effluent and used catalyst. Additionally, the method may include regenerating at least a portion of the used catalyst to produce regenerated catalyst. The catalysts may each include regenerated catalyst.

Processes for catalytic reforming of a hydrocarbon feedstock may include contacting the hydrocarbon feedstock with catalyst in a first reforming unit to produce a first effluent and used catalyst. The method may further include passing a portion of the first effluent directly to a second reforming unit and contacting the first effluent with catalyst to produce a second effluent and used catalyst. The method may also include passing a portion of the second effluent directly to a third reforming unit and contacting the second effluent with catalyst to produce a reformate effluent and used catalyst. Additionally, the method may include regenerating at least a portion of the used catalyst to produce regenerated catalyst. The catalysts may each include regenerated catalyst.

A method of making a multifunctional catalyst for upgrading pyrolysis oil includes contacting a zeolite support with a solution including at least a first metal catalyst precursor and a second metal catalyst precursor, the first metal catalyst precursor, the second metal catalyst precursor, or both, including a heteropolyacid. Contacting the zeolite support with the solution deposits or adsorbs the first metal catalyst precursor and the second catalyst precursor onto outer surfaces and pore surfaces of the zeolite support to produce a multifunctional catalyst precursor. The method further includes removing excess solution from the multifunctional catalyst precursor and calcining the multifunctional catalyst precursor to produce the multifunctional catalyst comprising at least a first metal catalyst and a second metal catalyst deposited on the outer surfaces and pore surfaces of the zeolite support.