Exxonmobil Research and Engineering Company

Darden Sinclair

Michel A Daage

Lei Zhang

Christine Nicole Elia

Timothy Lee Hilbert

Charles John Mart

Mohan Kalyanaraman

Louis F Burns

Jose G Santiesteban

Ajit Bhaskar Dandekar

Daniel Mark Giaquinta

Valery Sokolovskii

David M Lowe

Anthony F Volpe

Nicholas L Ohler

Jun Han

Madhav Acharya

Jocelyn A Kowalski

Michael A Daage

Integrated hydroprocessing methods using high activity, low density catalysts are provided. The high activity catalysts allow for lower temperature operation, which reduces catalyst degradation, while the low density of the catalysts means a corresponding reduction in the amount of metal needed to fill a reactor volume. The methods allow for flexible processing of feedstocks with a variety of wax contents.

Integrated hydroprocessing with high productivity catalysts

Integrated hydroprocessing methods using high activity, low density catalysts are provided. The high activity catalysts allow for blocked operation when processing lube range feedstocks of widely varying characteristics, such as wax content, without having to substantially change the configuration or operating conditions of the process train. Instead, the different feedstocks can be accommodated by varying the reaction temperature in the process train.

Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include a zeolite with a low silica to alumina ratio combined with a low surface binder, or alternatively the formulated catalyst has a high ratio of zeolite surface area to external surface area.

Hydroprocessing catalysts with low surface area binders

Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include at least two zeolites, including a zeolite with a low silica to alumina ratio. The catalysts may be combined with a low surface binder, or alternatively the catalysts as formulated may have a high ratio of zeolite surface area to external surface area.

Multiple molecular sieve catalyst for sour service dewaxing

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Beaumont, TX, United States of America

Darden Sinclair