METHANE de-NOX for Utility PC Boilers

Bryan, Bruce; Rabovitser, Joseph; Nester, Serguei; Wohadlo, Stan

doi:10.2172/895035

2005

DOI: 10.2172/895035

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METHANE de-NOX for Utility PC Boilers

Bruce Bryan¹,

Joseph Rabovitser²,

Serguei Nester³

et al.

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Effect of Pulverized Coal Preheating on NO_x Reduction during Combustion

et al. 2017

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Although various NO x removal technologies have been commercialized, NO x emissions are still so high that they cannot meet the newest standard and endanger the eco-environment and human health. Meanwhile, some NO x reduction technologies suffer from high costs. Recently, a cheap and pending technology called gas-fired coal preheating has surfaced again. This method introduces hot flue gas to heat a coal stream to high temperatures before the coal stream is injected into a utility boiler for combustion, thus resulting in a reduction in NO x . Considering the complex mechanisms during preheating, the effect of the preheating parameters, including temperature, residence time, excess air ratio, and coal type, are studied in a laboratory-scale drop-tube furnace in detail. Meanwhile, by means of Chemkin coupled with the mature NO x reduction mechanisms of GRI-mesh3.0 and Dagaut, as well as a CPD model, a detailed kinetics analysis on NO removal, including the migration and transformation of hydrocarbons and nitrogenous compounds during PC preheating, is performed. The research provides intuitive guidance, in practice, and a new scientific interpretation, in theory, for NO x reduction during PC combustion with preheating.

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Effect of Pulverized Coal Preheating on NO_x Reduction during Combustion

et al. 2017

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METHANE de-NOX for Utility PC Boilers

Cited by 1 publication

References 0 publications

Effect of Pulverized Coal Preheating on NO_x Reduction during Combustion

Effect of Pulverized Coal Preheating on NO_x Reduction during Combustion

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METHANE de-NOX for Utility PC Boilers

Cited by 1 publication

References 0 publications

Effect of Pulverized Coal Preheating on NOx Reduction during Combustion

Effect of Pulverized Coal Preheating on NOx Reduction during Combustion

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Product

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Effect of Pulverized Coal Preheating on NO_x Reduction during Combustion

Effect of Pulverized Coal Preheating on NO_x Reduction during Combustion