Chevron U.s.a. Inc.

Advanced Refining Technologies LLC

Viorel Duma

Alexander E Kuperman

Theodorus Ludovicus Michael Maesen

Stanislaw Plecha

Charles R Wilson

Axel Brait

Xiaoying Ouyang

Matthew P Woods

Ujjal Mukherjee

Hye Kyung Cho Timken

John V Heyse

Rahul Shankar Bhaduri

Horacio Trevino

Jeff Johns

Narinobu Kagami

Varut Komalarajun

Alex Yoon

Hyunuk Ryu

John Everett Creighton

Derek Blackwell

Ibrahim Uckung

Hye Kyung Timken

Ibrahim J Uckung

Theodoras Ludovicus Michael Maesen

Hyunu Ryu

Bulk catalysts comprised of nickel, molybdenum, tungsten and titanium and methods for synthesizing bulk catalysts are provided. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.

Tetrametallic bulk hydroprocessing catalysts

A catalyst system has been designed that disrupts the sedimentation process. The catalyst system achieves this by saturating key feed components before the feed components are stripped into their incompatible aromatic cores. The efficacy of this disruptive catalyst system is particularly evident in a hydrocracker configuration that runs in two-stage-recycle operation. The catalyst is a self-supported multi-metallic catalyst prepared from a precursor in the hydroxide form, and the catalyst must be toward the top level of the second stage of the two-stage system.

Catalytic remedy for advanced UCO bleed reduction in recycle hydrocracking operations

Provided is a hydro-regeneration catalyst system, comprising:

Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst

Spheroidal catalyst support, supported catalyst, and method of preparing and using the catalyst for hydrodemetallation of metal-containing heavy oil feedstocks are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 30% percent of their pore volume in pores having a diameter of between 200 and 500 &#x212b;. Catalysts prepared from the supports contain Group 6, 9 and 10 metals or metal compounds supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved catalytic activity and stability to remove metals from heavy feedstocks during a hydrotreating process. The catalysts also provide increased sulfur and MCR conversion during a hydrotreating process.

Spheroidal resid hydrodemetallation catalyst

Catalyst supports, supported catalysts, and a method of preparing and using the catalysts for the demetallation of metal-containing heavy oil feedstocks are disclosed. The catalyst supports comprise alumina and 5 wt % or less titania. Catalyst prepared from the supports have at least 30 to 80 volume percent of its pore volume in pores having a diameter of between 200 and 500 angstroms. Catalysts in accordance with the invention exhibit improved catalytic activity and stability to remove metals from heavy feedstocks during a hydroconversion process. The catalysts also exhibit increased sulfur and MCR conversion.

Extruded resid demetallation catalyst

The present disclosure provides a macroporous noble metal catalyst and processes employing such catalysts for the regeneration of deactivated ionic liquid catalyst containing conjunct polymer.

Catalyst supports, supported catalysts, and a method of preparing and using the catalysts for the demetallation of metal-containing heavy oil feedstocks are disclosed. The catalyst supports comprise precipitated alumina prepared by a low temperature pH swing process. A large portion of the pore volume of the catalyst supports has pores with a diameter in the range of about 200 &#x212b; to about 500 &#x212b;. Catalysts prepared from the supports of the invention exhibit improved catalytic activity and stability to remove metals from heavy hydrocarbon feedstocks during a hydroconversion process. The catalysts also exhibit increased sulfur and MCR conversion during the hydroconversion process.

Resid hydrotreating catalyst

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Hercules, CA, United States of America

Viorel Duma