Abstract: A process for the production of methyl acetate by carbonylating at a temperature of 250 to 350° C., in the presence of a zeolite catalyst, a feed comprising dimethyl ether, a gas comprising carbon monoxide and hydrogen at a molar ratio of hydrogen to carbon monoxide of at least 1, methyl acetate and one or more compounds containing a hydroxyl functional group.
Type:
Application
Filed:
April 12, 2017
Publication date:
November 12, 2020
Applicant:
BP Chemicals Limited
Inventors:
Thomas Edward CLARK, Nicholas John HAZEL, John Glenn SUNLEY
Abstract: A catalyst and process for the production of methyl acetate by contacting dimethyl ether and carbon monoxide in the presence of a catalyst which is a zeolite of micropore volume of 0.01 ml/g or less.
Abstract: A method for scrubbing off-gas generated in production units for the manufacture of acetic acid and an apparatus therefor. The method comprises supplying off-gas and acetic acid solvent at a tick-over flow rate to an acetic acid scrubbing unit, withdrawing off-gas from the scrubbing unit, supplying withdrawn off-gas to a methanol scrubbing unit, scrubbing the off-gas therein with methanol solvent and withdrawing scrubbed off-gas from the methanol scrubbing unit.
Type:
Grant
Filed:
June 16, 2015
Date of Patent:
January 21, 2020
Assignee:
BP Chemicals Limited
Inventors:
Timothy Crispin Bristow, Paul David Williams
Abstract: A carbonylation process in the presence of a pretreated zeolite catalyst which comprises the sequential steps (i) pretreating the catalyst and (ii) carbonylating dimethyl ether with a carbon monoxide-containing gas to produce methyl acetate in which the catalyst pretreatment step (i) comprises a step (a) contacting the catalyst with a first treatment mixture comprising water vapour; and a step (b) contacting the treated catalyst of step (a) with a second treatment mixture comprising an inert gas and at least one of dimethyl ether and methanol.
Abstract: In processes for the hydrolysis of a methyl acetate with at least one of water and methanol in the presence of at least one Brønsted acid catalyst to produce acetic acid the performance of the catalyst is improved by using a methyl acetate feed in which the total amount of acetaldehyde and 1,1 dimethoxyethane impurities is maintained at 100 ppm wt or less calculated as mass equivalents of acetaldehyde.
Type:
Grant
Filed:
December 11, 2018
Date of Patent:
December 10, 2019
Assignee:
BP Chemicals Limited
Inventors:
Berian John Daniel, John Glenn Sunley, Russell Alan Taylor, Gareth Gerald Armitage
Abstract: Crystalline zeolites having a FER framework type wherein the crystallites have a dimension in the c-axis of about 500 nanometers (nm) or less, a method for their preparation and a process for the co-production of acetic acid and dimethyl ether comprising the step of contacting methyl acetate and methanol in the presence of catalysts comprising the crystalline zeolites.
Type:
Grant
Filed:
October 11, 2017
Date of Patent:
June 25, 2019
Assignee:
BP Chemicals Limited
Inventors:
Thomas Edward Clark, Evert Jan Ditzel, David John Law, Bruce Leo Williams
Abstract: A process for the co-production of acetic acid and dimethyl ether by contacting methyl acetate and methanol in the presence of catalysts comprising crystalline zeolites having a FER framework type which crystallites have a dimension in the c-axis of about 500 nm or less and a ratio of the c-axis:b-axis dimension of 5:1 or greater and a method for preparation of the zeolites utilizing piperazines.
Abstract: Carbonylation process for producing methyl acetate, by contacting dimethyl ether and carbon monoxide under carbonylation conditions in the presence of a catalyst having a zeolite of micropore volume of 0.01 ml/g. The zeolite is an as-synthesized organic structure directing agent-containing zeolite and contains at least one channel which is defined by an 8-member ring.
Abstract: A process for the co-production of acetic acid and dimethyl ether with reduced formic acid content by distilling a mixture comprising dimethyl ether, methanol and methyl formate; separating methyl formate from the mixture to recover dimethyl ether and methanol; and catalytically reacting the methanol and methyl acetate to produce a reaction product of acetic acid an dimethyl ether.
Abstract: Method for the selective dealumination of the aluminum within the 12-membered ring channels of a zeolite of structure type MOR. The method includes the steps of (i) loading a MOR zeolite in the hydrogen or ammonium form with a univalent metal to obtain a metal loaded zeolite; and (ii) treating the metal loaded zeolite with steam at a temperature of at least 400° C. to obtain a metal loaded dealuminated zeolite.
Type:
Grant
Filed:
September 29, 2009
Date of Patent:
February 17, 2015
Assignee:
BP Chemicals Limited
Inventors:
Gareth Gerald Armitage, John Glenn Sunley
Abstract: A process for the production of acetic acid and/or methyl acetate by the carbonylation of methanol, methyl acetate and/or dimethyl ether with carbon monoxide in the presence of a desilicated mordenite catalyst.
Type:
Grant
Filed:
May 6, 2010
Date of Patent:
August 19, 2014
Assignee:
BP Chemicals Limited
Inventors:
Gareth Gerald Armitage, Bogdan Costin Gagea, David John Law, John Glenn Sunley
Abstract: A catalyst and/or precatalyst for olefin oligomerization comprising one or more coordination complexes having one or more central palladium metal atoms. Each palladium atom is bonded to four ligand donor atoms. Two of the donor atoms are group 16 elements and two of the donor atoms are group 15 elements. Also provided are neutral or cationic coordination complex dimers, so that the two palladium atoms are both bonded to one or two donor atoms from group 16, and each palladium atom is bonded to two donor atoms from group 15. In some instances, each of the two group 16 donor atoms are oxygen and each of the four group 15 donor atoms are nitrogen.
Type:
Grant
Filed:
April 6, 2012
Date of Patent:
August 12, 2014
Assignees:
California Institute of Technology, BP Chemicals Limited
Inventors:
Paul Oblad, Matthew S. Winston, Jay A. Labinger, John E. Bercaw, Sander Gaemers
Abstract: Process for producing acetic acid by carbonylating methanol and/or a reactive derivative thereof in a liquid reaction composition in which there exists in equilibrium, at least a first soluble catalytic species and a second soluble catalytic species. The first catalytic species is the least catalytically active or promotionally active of the species existing in the equilibrium. The process includes determining (i) the concentration of the first catalytic species and/or (ii) the ratio of the concentration of the first catalytic species to the concentration of the second catalytic species in equilibrium therewith, present in the liquid reaction composition and/or a present in a liquid fraction in a separation step, and maintaining (i) and/or (ii) below a pre-determined value.
Abstract: Process for the production of at least one carbonylation product selected from acetic acid and methyl acetate, by carbonylating at least one carbonylatable reactant selected from methanol and reactive derivatives thereof with carbon monoxide in the presence of a catalyst. The catalyst is a mordenite which has been treated with an aqueous ammonium hydroxide solution and has a silica:alumina molar ratio of at least 10:1, and the reactive derivatives are selected from methyl acetate and dimethyl ether.
Abstract: A process for the production of methyl acetate by reacting dimethyl ether with carbon monoxide into a carbonylation reactor containing a mordenite catalyst in the presence of added methyl acetate and/or acetic acid.
Type:
Grant
Filed:
November 19, 2009
Date of Patent:
January 7, 2014
Assignee:
BP Chemicals Limited
Inventors:
Nicholas John Hazel, Lesley Ann Key, Mark Stephen Roberts, John Glenn Sunley
Abstract: A process for the production of methyl acetate and/or acetic acid by contacting a carbon monoxide-containing gas and methanol and/or reactive derivatives thereof with a mordenite loaded with copper and silver loaded by ion-exchange and subsequently regenerating the catalyst.
Abstract: A process for the production of acetic acid and/or methyl acetate by carbonylating methanol and/or reactive derivatives thereof with carbon monoxide in the presence of a catalyst which is a mordenite which has been treated with an aqueous basic solution containing at least one of aluminate ions and gallate ions and has a silica:X2O3 molar ratio (wherein X is A1 and/or Ga) of at least 12:1.