Fuel and related compositions – With combustion improver – Sulfur bindant
Patent
1987-11-30
1989-04-25
Dees, Carl F.
Fuel and related compositions
With combustion improver
Sulfur bindant
44641, 110347, 431 4, C10L 1000, F23B 700
Patent
active
048244414
ABSTRACT:
A method and composition are provided for decreasing emissions of sulfur oxides and nitrogen oxides upon combustion of carbonaceous fuel material. In particular, the composition comprises a refined coal, having low ash-forming material and inorganic sulfur content, a sulfur sorbent, a sulfation promoter, and a catalyst for the reaction of sulfur dioxide to sulfur trioxide. Reduced emissions of sulfur oxides are achieved by combusting the composition in an oxygen restricted burner to lessen the effect of sorbent sintering while obtaining other advantages associated with mixing a sulfur sorbent with the carbonaceous material prior to combustion. Nitrogen oxides emissions are reduced by use of an oxygen restricted burner which lowers the flame temperature. Nitrogen oxides emissions are also reduced by lower flame temperatures resulting from endothermic reactions which are undergone by the sulfur sorbent and promoter.
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Dees Carl F.
Genesis Research Corporation
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