Shell Oil Comapny

Timothy Michael Nisbet

Garo Garbis Vaporciyan

Cornelis Leonardus Maria Vrouwenvelder

Evert Van Der Heide

Hendrik Dirkzwager

Joannes Ignatius Geijsel

Laurent Alain Michel Fenouil

Joachim Ansorge

Marinus Van Zwienen

Abdul Razak Mohamad Ali

Paul Wood

Joseph Broun Powell

Leslie Andrew Chewter

Pieter Huizenga

Jean Paul Andre Marie Joseph Ghislain Lange

Michael Johannes Franciscus Maria Verhaak

Cyrille Paul Allais

Raymond Lawrence June

Aart Bartus Van Oort

Andrew David Horton

Duraisamy Muthusamy

Eduardus Petrus Simon Schouten

David Cleve Eubanks

Cornelis Willem Adriaan Schram

Minne Boelens

Gerardus Martinus Maria Van Kessel

Jovan Jovanovic

Abe Wiebe De Jong

The invention provides a continuous process for the preparation of ethylene glycol and 1, 2-propylene glycol from starting material comprising one or more saccharides, said process being carried out in a reactor system comprising a reactor vessel equipped with an external recycle loop and said process comprising the steps of: i) providing the starting material in a solvent, via an inlet, to the external recycle loop and contacting it therein with a retro-aldol catalyst composition to provide an intermediate stream; ii) then contacting said intermediate stream with hydrogen in the presence of a hydrogenation catalyst composition in the reactor vessel; iii) withdrawing a product stream comprising glycols from the reactor vessel; iv) providing a portion of said product stream, via an outlet, for separation and purification of the glycols contained therein; and v) recycling the remainder of said product stream via the external recycle loop.

Process for the preparation of glycols

The invention relates to a process for the production of ethylene oxide, comprising the steps of: producing ethylene resulting in a stream comprising ethylene and ethane; separating the stream comprising ethylene and ethane into a stream comprising ethylene and ethane in which stream the amount of ethylene is greater than the amount of ethane and a stream comprising ethane and ethylene in which stream the amount of ethane is greater than the amount of ethylene; producing ethylene oxide by subjecting ethylene and ethane from the stream comprising ethylene and ethane, in which stream the amount of ethylene is greater than the amount of ethane, to oxidation conditions resulting in a stream comprising ethylene oxide, unconverted ethylene and ethane; and recovering ethylene oxide from the stream comprising ethylene oxide, unconverted ethylene and ethane.

Process for the production of ethylene oxide

The invention relates to a process for the preparation of an alkanediol and a dialkyl carbonate comprising:

Process for preparing alkanediol and dialkyl carbonate

The invention relates to a process for preparing a diaryl carbonate from a dialkyl carbonate and an aryl alcohol using a series of reactive distillation columns.

Process for preparing diaryl carbonates

An alkylene carbonate and an alkanol are subjected to transesterification to yield a dialkyl carbonate and alkanediol in a process comprising

Process for the production of dialkyl carbonate and alkanediol

An alkanediol and a dialkyl carbonate are prepared in a process comprising:

Process for the preparation of an alkanediol and a dialkyl carbonate

The invention relates to a process for the preparation of a diaryl carbonate by transesterification of an aromatic alcohol with a dialkyl carbonate in the presence of a transesterification catalyst during a period of time [t],

Process for the preparation of diaryl carbonate

An alkanediol and a dialkyl carbonate are prepared in a process comprising: The process is especially suitable for the production of propylene glycol and dimethyl carbonate from propylene carbonate and methanol.

An alkylene carbonate is produced by the reaction of an alkylene oxide with carbon dioxide in the presence of a phosphonium compound as catalyst in a process in which The alkylene carbonate thus produced is suitably reacted with an alkanol to produce an alkane diol and a dialkyl carbonate.

Process for the production of alkylene carbonate and use of alkylene carbonate thus produced in the manufacture of an alkane diol and a dialkyl carbonate

A process for preparing styrene by contacting a gaseous feed which contains 1-phenylethanol and at least 0.1% wt of phenol and/or ethylphenol with a heterogeneous dehydration catalyst in the presence of at least 0.40% wt of benzylalcohol and at a molar ratio of benzylalcohol to total amount of phenol and ethylphenol of at least 0.8.

Process for preparing styrene

Process for the preparation of a mixture comprising C+ linear olefins, which process comprises the steps of

Process for the preparation of linear olefins and use thereof to prepare linear alcohols

The invention pertains to a method of preparing styrene or substituted styrene involving (1) converting a mixture containing alkylbenzene hydroperoxide or substituted alkylbenzene hydroperoxide to a mixture containing phenyl alkanol or substituted phenyl alkanol and (2) dehydrating the phenyl alkanol or substituted phenyl alkanol, characterized by oxidizing an alkene to an alkylene oxide in step (1) in the presence of a heterogenous catalyst and dehydrating the phenyl alkanol or substituted phenyl alkanol in step (2) in the presence of a homogenous dehydration catalyst to obtain styrene or substituted styrene.

Preparation method

The present invention pertains to a process for the hydrogenation of alkylaryl ketones, which process involves contacting a feed containing the alkylaryl ketones and from 0.5% to 30% by weight of phenolic compounds with hydrogen in the presence of a heterogeneous hydrogenation catalyst. The invention further relates to a process for preparing a hydrogenation catalyst with improved activity.

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Amsterdam, Netherlands

Timothy Michael Nisbet