Lyondell Chemical Technology, L.p.

Arco Chemical Technology, L.p.

Equistar Chemicals, LP

Ecocatalytic Inc.

Lyondellbasell Acetyls, LLC

Millennium Petrochemicals Inc.

Gary A Sawyer

John A Sofranko

C Andrew Jones

Andrew P Kahn

Brian A Salisbury

Robert S Bridges

Steven T Coleman

Shaw-Chan Lin

Elizabeth I Ross-Medgaarden

Noel C Hallinan

Ronnie M Hanes

Te Chang

Arsam Behkish

David L Ramage

Lawrence M Candela

Wayne Joseph Brtko

Michael E Fitzpatrick

Majid Keyvani

Allen David Hood, Jr

Michael G Axelrod

Rene Zamarripa

Vasilis Papavassiliou

Allen David Hood

Papavassiliou Vasilis

A method of removing CO from a mixture of CO and saturated or unsaturated hydrocarbons is provided. In one embodiment, the method is to contact a feed stream with an oxygen transfer agent; and then oxidize at least a portion of the CO to COto produce a stream enriched in CO. The saturated and unsaturated hydrocarbons in the feed are not further oxidized during the oxidation. The oxygen transfer agent includes at least one of: i) water; ii) at least one reducible metal oxide; iii) at least one reducible chalcogen; or mixtures thereof. In another embodiment, the CO is converted to methane. The unsaturated hydrocarbons in the feed are not hydrogenated. In both of these alternatives, the COor methane are then removed. Systems for removing the CO are also provided.

Process for the removal of carbon monoxide from non-catalytic oxidative dehydrogenation product streams

Methods and systems for producing acetic acid, including glacial acetic acid. A first stream of a reactor fluid that includes methyl acetate, water, and a first amount of carbon monoxide may be forwarded from a reactor to a reactor cooler to form a cooled reactor fluid. The cooled reactor fluid may have a concentration of methyl acetate that is lower than the concentration of methyl acetate in the reactor fluid.

Methods and systems for producing acetic acid

A method of removing CO from a mixture of CO and saturated and unsaturated hydrocarbons CO to COis provided. In one embodiment, the method is to contact feed stream with an oxygen transfer agent; and then oxidize at least a portion of the CO to COto produce a stream enriched in CO. The saturated and unsaturated hydrocarbons in the feed are not further oxidized during the oxidation. The oxygen transfer agent includes at least one of: i) water; ii) at least one reducible metal oxide; iii) at least one reducible chalcogen; or mixtures thereof. In another embodiment, the CO is converted to methane. The unsaturated hydrocarbons in the feed are not hydrogenated. In both of these alternatives, the COor methane are then removed. Systems for removing the CO are also provided.

The present disclosure relates to processes for the removal of paraffins. The processes generally include providing a Ccontaining stream including isobutylene, 1-butene, 2-butene, n-butane and isobutane, introducing the Ccontaining stream into a paraffin removal process to form an olefin rich stream, wherein the paraffin removal process is selected from extractive distillation utilizing a solvent including an organonitrile, passing the Ccontaining stream over a semi-permeable membrane and combinations thereof; and recovering the olefin rich stream from the paraffin removal process, wherein the olefin rich stream includes less than 5 wt. % paraffins.

Paraffin removal from C4 containing streams

Ethylene separation processes are described herein. The ethylene separation processes generally include introducing a feed stream including ethylene and butene into a de-ethenizer; and separating the ethylene from the butene via fractional distillation within the de-ethenizer to form an overhead stream including separated ethylene and a bottoms stream including separated butene, wherein the de-ethenizer operates at a pressure of less than 350 psig.

Ethylene separation process

A process for producing propylene and 1-butene is disclosed. The process comprises dimerizing ethylene in the presence of a dimerization catalyst to produce a dimerization mixture comprising 1-butene and 2-butenes. The dimerization mixture is distilled to produce a 1-butene stream containing 1-butene and ethylene, a 2-butenes stream, and a heavy stream. The 2-butenes stream is reacted with ethylene in the presence of a metathesis catalyst to produce a metathesis mixture comprising propylene, ethylene, and 2-butenes. Propylene is separated from the metathesis mixture.

Production of 1-butene and propylene from ethylene

The invention is a method of purifying propylene oxide containing acetone, water, methanol, methyl formate, aldehydes, and hydrocarbons impurities. The method comprises contacting the propylene oxide with a glycol and a Cor greater alkane in a liquid/liquid solvent extraction, and separating propylene oxide having reduced impurities content. The purified propylene oxide may be produced by reacting propylene and a hydroperoxide to produce a crude propylene oxide effluent, distilling the crude effluent to produce a propylene oxide stream which contains 1-5 weight percent of the impurities, contacting the propylene oxide stream with a glycol and a Cor greater alkane in a liquid/liquid solvent extraction, then separating an alkane fraction comprising propylene oxide from a glycol fraction, and distilling the alkane fraction in one or more steps to produce an alkane bottoms stream and a propylene oxide product having less than 0.1 weight percent impurities.

Purification of propylene oxide

A process for producing allyl alcohol is disclosed. The process comprises reacting propylene, acetic acid, and oxygen to produce a reaction mixture. The reaction mixture is distilled to produce a vapor stream comprising propylene and a liquid stream comprising allyl acetate, acetic acid, acrolein, and allyl diacetate. The liquid stream is distilled to produce a lights stream comprising acrolein; a side draw comprising allyl acetate, acetic acid, and water; and a bottoms stream comprising acetic acid and allyl diacetate. The bottoms stream is distilled to remove a heavies stream comprising allyl diacetate. The side draw is hydrolyzed to produce allyl alcohol.

Process for producing allyl alcohol

A propylene production process is disclosed. The process comprises (a) reacting a feed stream comprising isobutene in the presence of a skeletal isomerization catalyst to obtain an isomerized stream comprising Colefins; and (b) reacting the isomerized stream with ethylene in the presence of a metathesis catalyst to form a metathesis product stream comprising propylene, Colefins, and C+ olefins. The metathesis reaction pressure is equal to or lower than that of the skeletal isomerization.

Propylene production

A process for producing allyl acetate is disclosed. The process comprises reacting propylene, acetic acid, and oxygen in the presence of a supported palladium catalyst in an adiabatic reactor.

Process for producing allyl acetate

A process for making propylene oxide from propylene is disclosed. The process comprises reacting propylene, oxygen, and hydrogen in the presence of a catalyst and a solvent to produce a reaction mixture comprising propylene oxide. Separation of propylene, oxygen, hydrogen, and propylene oxide from the reaction mixture results in a residual mixture comprising methanol. A portion of the residual mixture is recycled to the reaction. A portion of the residual mixture is distilled to generate a distilled methanol stream, which is recycled to the reaction.

Propylene oxide process

A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting aldehyde impurities with a hydroxyl compound in a drying distillation column or a combined column to form corresponding acetals. The acetals are subsequently removed as heavy impurities from acetic acid by distillation.

Preparation of acetic acid

A mixture of propylene oxide and methanol is separated by liquid/liquid extraction using water and a hydrocarbon such as n-octane as extractive solvents.

Propylene oxide purification

Economics of heat are achieved in a process for batch fatty acid esterification of alkoxylated polyol by transferring the reaction mixture to a holding vessel and subsequently heating fresh feed to the batch reaction by indirect heat exchange with the transferred reaction mixture.

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Media, PA, United States of America

Gary A Sawyer