C - Chemistry – Metallurgy – 10 – J
Patent
C - Chemistry, Metallurgy
10
J
48/12, 48/40
C10J 3/08 (2006.01) C10J 3/16 (2006.01) C10J 3/20 (2006.01)
Patent
CA 1171658
ABSTRACT OF THE DISCLOSURE A method of operating a gasifier having at least four, and preferably eight, tuyeres, so as to bring about a rapid turndown from full operational loading to a relatively lower operational loading without the risk of either a temporary or permanent loss of a tuyeres. The gasifying medium is arranged to be supplied to the tuyeres at either a first velocity and loading or a second, lower, velocity and loading and in carrying out the method the gasifying medium supplied to some or all of the tuyeres is changed abruptly from the first to the second velocity and loading at selected frequent intervals, in a predetermined pattern, so that a selective pulsing operation of the tuyeres occurs to bring about the required reduction in loading.
386999
Brooks Charles T.
Hebden Dennis
British Gas Corporation
Gowling Lafleur Henderson Llp
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