Chevron U.s.a. Inc.

Chevron Research Company

Chevron Research & Technology Company

Chevron Phillips Chemical Company LP

Andrew Rainis

Stacey Ian Zones

Donald S Santilli

Dennis L Holtermann

Theodorus Ludovicus Michael Maesen

Lawrence W Jossens

Thomas Van Harris

Yihua Zhang

Alexander E Kuperman

James Nathan Ziemer

Jifei Jia

Bi-Zeng Zhang

Richard Coser

Theodorus Ludovicus Maesen

Dennis John O'Rear

Hye-Kyung Cho Timken

Cong-Yan Chen

Bi-Zeng Zhan

Theodorus Maesen

Richard O Moore, Jr

Kamala R Krishna

Jerome F Mayer

Joseph A Biscardi

James V Kennedy

Horacio Trevino

Janine Lichtenberger

Thomas Michael Rea

Christopher J Dillon

Clifford M Detz

D J O'Rear

Bao Quoc Le

Theodorus Luvidocus Michael Maesen

Richard Joseph Coser

Thomas V Harris

Darren Fong

Dennis J O'REAR

A hydrocracking catalyst is provided comprising: a) greater than 10 wt % of a zeolite USY having: i. a total OD acidity of 0.350 to 0.650 mmol/g; ii. an ASDI between 0.05 and 0.15; iii. a BET surface area greater than 600 m/g; iv. a SAR greater than 10; v. less than 45 vol % of pores greater than 2 nm; b) a support; and c) at least one metal selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table. A process for hydrocracking using a hydrocracking catalyst to produce middle distillates is provided. A method for making a hydrocracking catalyst is also provided.

Middle distillate hydrocracking catalyst containing zeolite USY with enhanced acid sites

A second-stage hydrocracking catalyst is provided comprising:

Noble metal zeolite catalyst for second-stage hydrocracking

A second-stage hydrocracking catalyst is provided, comprising: a) a zeolite beta having an OD acidity of 20 to 400 &#x3bc;mol/g and an average domain size from 800 to 1500 nm2; b) a zeolite USY having an ASDI between 0.05 and 0.12; c) a catalyst support; and d) 0.1 to 10 wt % noble metal; wherein the second-stage hydrocracking catalyst provides a hydrogen consumption less than 350 SCFB across a range of synthetic conversions up to 37 wt % when used to hydrocrack hydrocarbonaceous feeds having an initial boiling point greater than 380&#xb0; F. (193&#xb0; C.). A second-stage hydrocracking process using the second-stage hydrocracking process is provided. A method to make the second-stage hydrocracking catalyst is also provided.

Noble metal zeolite catalyst for second-stage hydrocracking to make middle distillate

The present invention is directed to a hydroprocessing catalyst containing at least one catalyst support, one or more metals, optionally one or more molecular sieves, optionally one or more promoters, wherein deposition of at least one of the metals is achieved in the presence of a modifying agent.

Hydroprocessing catalyst and method of making the same

The invention provides for a process for dewaxing a waxy hydrocarbon feedstock to form a lubricant oil. The invention is also directed to a catalyst system comprising a hydrotreating catalyst upstream of a dewaxing catalyst, used in the dewaxing of a waxy hydrocarbon feedstock to form a lubricant oil. In particular, the invention is directed to a process and catalyst system designed to maintain yield of lubricant oil product. Specifically, the yield of lubricant oil does not decrease more than 2%, at a target pour point, over a dewaxing temperature range. The hydrotreating catalyst helps prevent aging of the dewaxing catalyst and maintains lubricant oil product yield at a target pour point over a wide temperature range. The hydrotreating catalyst comprises platinum, palladium, or combinations thereof on a low acidity inorganic oxide support where acidity is measured by a decalin conversion of less than 10% at 700&#xb0; F.

Process and catalyst system for improving dewaxing catalyst stability and lubricant oil yield

A catalyst precursor composition and methods for making such catalyst precursor are disclosed. The catalyst precursor comprises at least a Promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. Catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In one embodiment, the sulfidation is carried out by contacting the catalyst precursor with hydrogen and a sulfur containing compound, wherein the contacting is carried out ex-situ. Catalysts prepared from such catalyst precursors have a fouling rate of less than 8&#xb0; F. (4.4&#xb0; C.) per 1000 hour.

Hydroconversion processes employing multi-metallic catalysts and method for making thereof

A catalyst precursor composition and methods for making such a catalyst precursor are disclosed. The catalyst precursor comprises at least a promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, having an oxidation state of +2 or +4, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. In one embodiment, the catalyst precursor is of the formula A[(M) (OH)(L)](MO), wherein A is one or more monovalent cationic species, Mis selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, L is one or more oxygen-containing ligands, Mis at least a Group VIB metal, M:Mhas an atomic ratio between 100:1 and 1:100. In one embodiment, catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In a hydroconversion process at a hydrogen partial pressure of &#x2dc;450 psig, the catalyst a 700&#xb0; F.+ conversion rate of at least 50% of the 700&#xb0; F.+ conversion results gives obtained under comparable conditions and with a hydrogen partial pressure of 600 psig.

Novel methods of treating a Fischer-Tropsch derived hydrocarbon stream with an active filtering catalyst are disclosed. Such methods are capable of removing soluble (and ultra-fine particulate) contamination, fouling agents, and/or plugging precursors from the Fischer-Tropsch derived hydrocarbon stream such that plugging of the catalyst beds of a subsequent hydroprocessing process is substantially avoided.

Catalytic filtering of a Fischer-Tropsch derived hydrocarbon stream

A catalytic hydrodealkylation/reforming process which comprises contacting a heavy hydrocarbon feedstream under catalytic hydrodealkylation/reforming conditions with a composition comprising borosilicate molecular sieves having a pore size greater than about 5.0 Angstroms and a Constraint Index smaller than about 1.0; further containing a hydrogenation/dehydrogenation component; wherein at least a portion of the heavy hydrocarbon feedstream is converted to a product comprising benzene, toluene, xylenes and ethylbenzene.

Process for converting heavy hydrocarbon feeds to high octane gasoline, BTX and other valuable aromatics

Methods for producing a substantially paraffinic Fischer-Tropsch product or a blended Fischer Tropsch product comprising a selected oxygenate concentration, and if required, a selected oxygenate concentration of specific individual oxygenates, are disclosed. The methods of the present invention measure oxygenate concentration using GC-AED. The oxygenate measurements obtained using the GC-AED may be used to adjust and control various processes used to produce, upgrade, or finish Fischer Tropsch products to provide Fischer Tropsch products with a selected oxygenate concentration, and if required, a selected oxygenate concentration of specific individual oxygenates.

Use of oxygen analysis by GC-AED for control of fischer-tropsch process and product blending

The present invention relates to new crystalline zeolite SSZ-42 prepared by processes for preparing crystalline molecular sieves, particularly large pore zeolites, using an organic templating agent selected from the group consisting of N-benzyl-1,4-diazabicyclo�2.2.2!octane cations and N-benzyl-1-azabicyclo�2.2.2!octane cations.

Methods of using zeolite SSZ-42

A crystalline low-aluminum boron beta zeolite is used for dewaxing hydrocarbonaceous feeds.

Low-Aluminum boron beta zeolite

Hydrocarbon conversion processes using zeolite SSZ-42

A crystalline low-aluminum boron beta zeolite is prepared using a diquaternary ion as a template.

Hydrocarbon conversion utilizing a low-aluminum boron beta zeolite

Catalytic reforming of a naphtha feed with large-pore zeolites containing Group VIII metals and Group IA or Group IIA metal cations.

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Walnut Creek, CA, United States of America

Andrew Rainis