The British Petroleum Company, P.l.c.

Cogas Development Company

Alan G Roberts

Michael H Barker

A nozzle for injecting fuel oil into a fluidized bed combustor has a pair of co-axial tubes, each of which is connected to an air supply and each having internal outlets. The inner co-axial tube projects beyond and has its outlet beyond the outer co-axial tube outlet. The oil is supplied from a further tube within the inner co-axial tube and having its outlet near the outlet of the inner tube. Air passing down the inner tube entrains the oil emerging from the oil supply tube and the oil/air mixture then passes into and is reacted in the fluidized bed.

Combustor

A method and apparatus for mixing coal char particles with a hot stream of combustion gases containing molten ash particles, in order to prevent build-up of ash in the apparatus. The coal char particles, fluidized with a gas, are discharged as an annulus about the stream of combustion gases, so that the molten ash particles are cooled and solidified by progressive mixing with the char particles and thus prevented from reaching the walls of the apparatus in a molten state.

Growing community of inventors

Dorking, United Kingdom

Alan G Roberts