Bp Chemicals Limited

The British Petroleum Company, P.l.c.

Ian A Reid

David Charles Griffiths

Christopher J Astbury

Keith W Palmer

Mark J Howard

A process for the conversion of a liquid paraffin-containing hydrocarbon which comprises the steps of (a) partially combusting a mixture of the liquid hydrocarbon and a molecular oxygen-containing gas in a reaction chamber with a catalyst capable of supporting combustion beyond the normal fuel rich limit of flammability. The mixture has a stoichiometric ratio of hydrocarbon to oxygen of greater than the stoichiometric ratio required for complete combustion to carbon dioxide and water. The process produces a product stream and a carbon deposit in the reaction chamber. Periodically, the liquid hydrocarbon and molecular oxygen-containing gas mixture in step (a) is replaced with a fuel-rich carbon containing gas stream for a period of time sufficient to effect substantial removal of the carbon deposit from the reaction chamber.

Hydrocarbon conversion process

A process for the production of mono-olefins from a hydrocarbon feed containing one or more paraffinic hydrocarbons having at least two carbon atoms, the process comprising partial combustion of a mixture of the hydrocarbon feed and a molecular oxygen-containing gas in contact in a reaction chamber with a catalyst capable of supporting combustion beyond the normal fuel rich limit of flammability to produce heat of reaction, the reaction chamber being adapted such that at least part of the heat of reaction is transferred to the incoming feed and the velocity of the incoming feed is maintained at a value above the burning velocity of the feed mixture.

Process for the production of mono-olefins

A process for the production of mono-olefins from a paraffin-containing hydrocarbon feed having at least two carbon atoms which comprises a first step of partially combusting a mixture of the hydrocarbon feed and a molecular oxygen-containing gas in contact with a catalyst capable of supporting combustion beyond the normal fuel rich limit of flammability, the first step being carried out under a total pressure of greater than 5 bar absolute and at a temperature of greater than 650.degree. C.; and a second step of cooling the mono-olefinic products to 600.degree. C. or less within less than 50 milliseconds of formation.

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London, United Kingdom

Ian A Reid