Exxonmobil Chemical Patents Inc.

Geraldine Tosin

Georges M K Mathys

Machteld Maria Mertens

Marcel J G Janssen

Machteld M W Mertens

Hans K T Goris

Paul Hamilton

Robert James Saxton

Luc R M Martens

Jean Willem Beeckman

Johan Adriaan Martens

Helge Jaensch

Eddy Theophile Van Driessche

An Verberckmoes

Hailian Li

Marc P H Puttemans

Mechilium J G Janssen

Silvio Carrettin

Joris Franken

Sourav Saha

Embodiments of an invention disclosed herein relate to particles made from zeolite catalysts and their use in oligomerization processes. In particular, shaped particles (for example, spheroid particles) are made from compositions including the contact product of at least one zeolite catalyst and at least one binder.

Particles including zeolite catalysts and their use in oligomerization processes

In a feed clean-up process at least two adsorbents () are installed in front of an oligomerization reactor (). Olefin feed is sent over one adsorbent () and the nitrile poisons are adsorbed so that clean feed will enter the reactor (). Before the adsorbent () will be saturated, the feed () is sent to the other, fresh adsorbent (). At the same time oligomerization product from the reactor () is used to desorb nitriles from the spent adsorbent ().

Integrated nitrile poison adsorption and desorption system

Embodiments of an invention disclosed herein relate to processes utilizing solvent extraction to remove nitrogen containing compounds and optionally other components from feedstreams of olefins and paraffins.

Processes utilizing solvent extraction

An olefin oligomerization process comprises contacting an olefin feed with a catalyst composition. The catalyst composition includes a crystalline aluminosilicate having FAU, EMT or a combination of FAU and EMT framework type. The crystalline aluminosilicate has cobalt and at least one alkaline earth metal selected from calcium, barium, strontium and mixtures thereof within its intra-crystalline cages.

Olefin olegomerization process

The invention relates to an olefin oligomerization process comprising the steps of: i) contacting a feed comprising olefins and nitriles with a guard bed comprising eta alumina; and ii) contacting the feed obtained in step i) with an oligomerization catalyst under conditions suitable to oligomerize the olefins in the feed. It also relates to the use of a guard bed comprising eta-alumina for reducing the content of basic organic compounds in a hydrocarbon feed.

Olefin oligomerization process

The present invention provides an olefin oligomerization process comprising the steps of: i) reducing the level of acetonitrile in an olefin feed by contacting the feed with a non-zeolitic metal oxide; and ii) contacting the olefin feed with reduced level of acetonitrile with an olefin oligomerization catalyst under conditions suitable to oligomerize the olefin.

The invention provides an olefin oligomerization process comprising the steps of: i) reducing the level of nitriles in an olefin feed by contacting the feed with a guard bed comprising gamma alumina having a surface area greater than 250 m/g; and ii) contacting the olefin feed obtained in step i) with an oligomerization catalyst under conditions suitable to oligomerize the olefins in the feed; wherein the gamma alumina used in step i) has been obtained from needle shaped boehmite.

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Notre Dame de Gravenchon, France

Geraldine Tosin