BOILER AND COMBUSTION MEANS THEREFOR

摘要

A method and boiler for the disposal of waste products from the chemical process industries, especially as a result of the re-refining of oils. The waste products are burnt in a fluidised bed in which the bed material (37) is fluidised in a non-uniform manner to effect circulation (49) thereof so as to complete combustion at such a low temperature that the formation of sulphur trioxide and the volatilisation of metals is avoided.