Shell Oil Comapny

Shell Internationale Research Maatschappij, B.v.

Dominicus Maria Rekers

John Robert Lockemeyer

Eugene Marie Godfried Andre Van Kruchten

Michael Alan Richard

Willem Johan Beekman

Mathias Jozef Paul Slapak

Wiebren Age Miedema

Peter Boons

Marek Matusz

Randall Clayton Yeates

Donald Reinalda

Paul Michael McAllister

Wayne Errol Evans

Abraham Adriaan Smaardijk

Arthur Willibrordus Titus Rots

Arend Jan Te Raa

Alouisius Nicolaas Rene Bos

Thijs Wermink

Petrus Johannes Geradus Boons

Alouisius Nicolaas Bos

Alouisius Nicolaas Renee Bos

The invention provides a process for the preparation of an alkylene glycol from an alkene. A gas composition from an alkylene oxide reactor is supplied to an alkylene oxide absorber comprising a column of vertically stacked trays or comprising a packed column. Lean absorbent comprising at least 20 wt % water is supplied to the alkylene oxide absorber and is contacted with the gas composition in the presence of one or more catalysts that promote carboxylation and hydrolysis. At least 50% of the alkylene oxide entering the alkylene oxide absorber is converted in the alkylene oxide absorber. Fat absorbent is withdrawn from the absorber, is optionally supplied to finishing reactors and/or a flash vessel or light ends stripper, and is subsequently subjected to dehydration and purification to provide a purified alkylene glycol product stream.

Process for the preparation of alkylene glycol

Process for the recovery of ethylene oxide (EO) from fat absorbent (FA) which comprises providing a feed of elevated temperature FA to an EO Stripper, providing a stripping gas feed and contacting the stripping gas feed at elevated temperature with the elevated temperature FA feed, obtaining stripped lean absorbent (LA) and an EO-containing gas, and providing one or more external process stream feeds to the EO Stripper at a location above the elevated temperature FA feed and at a lower temperature with respect to the elevated temperature FA feed thereby concentrating EO in the EO-containing gas. The process can also include one or more impurity removal stages in the form of one or more side draws from the EO Stripper or an EO Stripper Concentrator. The invention also includes an apparatus for performing the process.

Production of ethylene oxide

The invention provides a process for the preparation of an alkylene glycol from an alkene wherein conversion of alkylene oxide to alkylene glycol occurs in an alkylene oxide absorber and optionally in further reactors, and alkylene glycol is extracted from fat absorbent by contacting the fat absorbent with a lean solvent, thereby producing fat solvent, recovering alkylene glycol from the fat solvent and recycling the lean solvent.

The invention provides a process for the production of ethylene oxide and, optionally, ethylene glycol. A base is added at various positions downstream of the quench section of an ethylene oxide absorber. This mitigates corrosion in the ethylene oxide and ethylene glycol plant.

Processes for the production of ethylene oxide and ethylene glycol

The invention relates to a process for remediation of a fluid contaminated with alkylene oxide, involving contacting the contaminated fluid with an aqueous absorbent to yield a fat absorbent having absorbed fluid, conferring intimate contact of fat absorbent and alkylene oxide and conversion of alkylene oxide; and, an apparatus for remediation of the fluid which has a converter having inlet means connected to the outlet of a fluid absorber for contacting fluid and aqueous absorbent, a holding unit having a volume V for the fat absorbent, and outlet means connected to the inlet of a fluid desorber.

Remediation process and apparatus

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 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.

Silver-containing catalysts, the manufacture of such silver-containing catalysts, and the use thereof

A process of preparing an alkylene glycol which process involves: i) reacting a respective alkylene oxide and water in a first reactor, ii) removing from the first reactor a reactor output mixture comprising an alkylene glycol and unreacted water, iii) transferring a proportion of the reactor output mixture to a distillation unit and a proportion of the reaction output mixture to a second reactor containing a catalyst, iv) reacting the reaction output mixture in the second reactor with a further amount of the respective alkylene oxide, and v) transferring a reactor output mixture from the second reactor to a distillation unit.

Process of preparing an alkylene glycol

A method for the start-up of a process for the epoxidation of an olefin, which method comprises

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Amsterdam, Netherlands

Dominicus Maria Rekers