Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1988-08-23
1990-05-29
Kratz, Peter
Gas: heating and illuminating
Processes
Fuel mixtures
48203, 48206, 48210, 110347, 122 4D, 252373, C01J 354
Patent
active
049292552
ABSTRACT:
A method for gasifying or combusting solid, carbonaceous material in a circulating fluidized bed reactor. Particles are separated from the product gas at least in two stages so that in the first stage, mainly coarser, so-called circulating particles are separted and returned to the reactor. In the second stage, fine carbonaceous particlates are separated from the gas and are made to agglomerate at a raised temperature. Coarser particles thus recieved are returned to the reactor through a return duct together with circulating particles. Adhesion of agglomerating particles to the walls of the duct is prevented preferably by leading hot particulates to the center of the duct and circulating particles to the walls of the duct.
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Hakulin Bertel K.
Nieminen Jorma J.
A. Ahlstrom Corporation
Kratz Peter
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