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Johnson Matthey Davy Technologies Limited patents


Recent patent applications related to Johnson Matthey Davy Technologies Limited. Johnson Matthey Davy Technologies Limited is listed as an Agent/Assignee. Note: Johnson Matthey Davy Technologies Limited may have other listings under different names/spellings. We're not affiliated with Johnson Matthey Davy Technologies Limited, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "J" | Johnson Matthey Davy Technologies Limited-related inventors


Carbonylation process and catalyst system therefor

A catalyst system for a liquid phase carbonylation reaction comprising a homogeneous acid catalyst component and a porous solid component, in particular for use in the formation of glycolic acid by carbonylation of formaldehyde. The homogeneous acid catalyst component is, for instance, sulphuric acid whilst the solid component can be unfunctionalised silica. ... Johnson Matthey Davy Technologies Limited

Process for the production of glycolic acid

A process for the production of glycolic acid or derivatives thereof from formaldehyde comprising reacting formaldehyde with carbon monoxide and water in the presence of a silica catalyst, wherein from about 200 to about 5000 ppm of an alkyl silyl sulfonic acid is supplied to the reaction.. . ... Johnson Matthey Davy Technologies Limited

Process

A reactor having a shell comprising: one or more reactor tubes located within the shell, said reactor tube or tubes comprising a plurality of catalyst receptacles containing catalyst; means for providing a heat transfer fluid to the reactor shell such that the heat transfer fluid contacts the tube or tubes; an inlet for providing reactants to the reactor tubes; and an outlet for recovering products from the reactor tubes; wherein the plurality of catalyst receptacles containing catalyst within a tube comprises catalyst receptacles containing catalyst of at least two configurations.. . ... Johnson Matthey Davy Technologies Limited

Process for removing co2 from crude natural gas

A method for treating a crude natural gas feed stream comprising methane and having a first carbon dioxide concentration, said method comprising the steps of: subjecting the crude natural gas feed stream to a separation process to provide: a purified natural gas stream having a second carbon dioxide content which is lower than the first carbon dioxide concentration in said crude natural gas stream; and, a carbon dioxide stream comprising carbon dioxide as the major component and methane; recovering the purified natural gas steam; optionally mixing the carbon dioxide stream with make-up methane and/or make-up air; passing the carbon dioxide stream and optional make-up methane or air through a heat exchanger to raise the temperature of the stream to the desired inlet temperature t1 of an oxidation reactor; optionally mixing the carbon dioxide stream with make-up methane and/or make-up air; passing the heated stream from step (d) and any optional make-up methane and/or air to the oxidation reactor containing an oxidation catalyst, where the methane is oxidised; removing a gas stream including the products of the oxidation reaction from the reactor, said gas stream being at an outlet temperature t2 which is higher than the inlet temperature t1; passing the gas stream removed in step (g) through the heat exchanger against the carbon dioxide stream from step (a) to allow the heat to be recovered from the gas stream removed in step (g) and utilised to heat the carbon dioxide stream in step (d); and measuring the outlet temperature t2 and controlling the inlet temperature t1 by adjusting the amount of make-up methane and/or air added in step (c) and/or step (e).. . ... Johnson Matthey Davy Technologies Limited

Annular catalyst carrier container for use in a tubular reactor

In a catalyst carrier for insertion in a reactor tube of a tubular reactor, the catalyst carrier includes a container for holding catalyst in use. The container has a bottom surface closing the container, and a top surface. ... Johnson Matthey Davy Technologies Limited

Process comprising two reaction zones and apparatus therefore

In a process for carrying out a chemical reaction gaseous reactants are supplied to a first reaction zone including a first catalyst having a first particle equivalent diameter. The first reaction zone is operated such that when the reactants are contacted with the first catalyst a portion of the reactants is converted to the desired product. ... Johnson Matthey Davy Technologies Limited








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