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Nitric oxide reduction by carbon monoxide over calcined limestone enhanced by simultaneous sulphur retention

✍ Scribed by Takehiko Furusawa; Masaaki Koyama; Motoki Tsujimura


Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
331 KB
Volume
64
Category
Article
ISSN
0016-2361

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✦ Synopsis


Nitric oxide reduction by carbon monoxide over calcined limestones is enhanced by the coexistence of sulphur dioxide over a temperature range pertinent to fluidized-bed combustion. This demonstrates that the reduction of nitric oxide formed in fluidized-bed combustion of coal is promoted by simultaneous sulphur retention under a staged air firing. Thermogravimetric analysis indicated that the enhanced reduction of nitric oxide was attributed to the increase in catalytic activity of the calcined limestones used partially for sulphur retention.