Saint-gobain Ceramics & Plastics, Inc.

Shell Oil Comapny

Shell Internationale Research Maatschappij, B.v.

Michael Alan Richard

John David Covey

John Robert Lockemeyer

Marek Matusz

Dominicus Maria Rekers

Paul Michael McAllister

Randall Clayton Yeates

Donald Reinalda

Thomas Szymanski

Alouisius Nicolaas Renée Bos

Donald James Remus

Martin Lysle Hess

Anne Taylor Coleman

Johannes Leopold Marie Syrier

Alouisius Nicolaas Bos

Alouisius Nicolaas Renee Bos

A carrier having at least three lobes, a first end, a second end, a wall between the ends and a non-uniform radius of transition at the intersection of an end and the wall is disclosed. A catalyst comprising the carrier, silver and promoters deposited on the carrier and useful for the epoxidation of olefins is also disclosed. A method for making the carrier, a method for making the catalyst and a process for epoxidation of an olefin with the catalyst are also disclosed.

Multi-lobed porous ceramic body and process for making the same

The carrier of the present invention includes at least 85 wt percent alpha alumina, at least 0.06 wt percent SiOand no more than 0.04 wt percent NaO. The carrier has a water absorption no greater than 0.35 g/g and a ratio of water absorption (g/g) to surface area (m/g) no greater than 0.50 g/m. Another aspect of the invention is a catalyst for the epoxidation of olefins which comprises the above described carrier and silver dispersed thereon, where the carrier has a monomodal, bimodal or multimodal pore distribution and where the quantity of silver is between 5 and 50 wt/%, relative to the weight of the catalyst. A reactor system for the epoxidation of olefins is also disclosed.

Catalyst for the epoxidation of oelfins

The carrier of the present invention includes at least 85 wt percent alpha alumina, at least 0.06 wt percent SiOand no more than 0.04 wt percent NaO. The carrier has a water absorption no greater than 0.35 g/g and a ratio of water absorption (g/g) to surface area (m/g) no greater than 0.50 g/m. Another aspect of the invention is a catalyst for the epoxidation of olefins which comprises the above described carrier and silver dispersed thereon, where the carrier has a monomodal, bimodal or multimodal pore distribution and where the quantity of silver is between 5 and 50 wt %, relative to the weight of the catalyst. A reactor system for the epoxidation of olefins is also disclosed.

Catalyst and catalyst carrier

Process for preparing an olefin oxide using a multi-lobed porous ceramic body

A catalyst composition comprising a support having a surface area of at least 500 m/kg, and deposited on the support:

Catalyst composition, a process for preparing the catalyst composition and a use of the catalyst composition

A reactor system for the oxidation of ethylene to ethylene oxide. The reactor system includes a reactor tube that contains a packed bed of shaped support material that can include a catalytic component. The shaped support material has a hollow cylinder geometric configuration. The reactor system has specific combinations of reactor tube and catalyst system geometries.

Reactor system and process for the manufacture of ethylene oxide

A process for selecting shaped particles for use in a tube which is capable of being packed with shaped particles to form a packed bed in the tube. A desired value of one or more properties of the packed bed is defined. The dimensions of the shaped particles are calculated such that a packed bed in the tube of the shaped particles having the calculated dimensions meets or substantially meets the desired value(s), and shaped particles are selected in accordance with the calculated dimensions. The properties of the packed bed may be the volume fraction which is occupied by shaped particles, the packing density, and the resistivity for a gas flowing through the packed bed.

Process for selecting shaped particles for use in a packed bed

A high activity and high selectivity silver catalyst comprising silver and, optionally, one or more promoters supported on a suitable support material having the form of a shaped agglomerate. The structure of the shaped agglomerate is that of a hollow cylinder having a relatively small inside (bore) diameter. The catalyst is made by providing the shaped material of a particular geometry and incorporating the catalytic components therein. The catalyst is useful in the epoxidation of ethylene.

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Fulshear, TX, United States of America

Michael Alan Richard