Reduction and admixture method in incineration unit for reductio

Furnaces – Refuse incinerator

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110346, B09B 300

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active

058099107

ABSTRACT:
The present invention relates to a process for the mixture of and/or for the achievement of and/or the facilitation of the reduction of undesired compounds, such as soot, hydrocarbons and the oxides of nitrogen and, if the fuel contains other substances, such as sulphur and chlorine, and metal compounds such as mercury and arsenic, for bringing about a reduction in emissions of acidifying oxides of sulphur and hydrogen chloride, as well as mercury and arsenic compounds in an incineration unit. In accordance with the invention, this is achieved by a special mixture and mixing process, in which suitable reducing agents for nitrogen compounds and/or for other undesired substances, for example oxides of sulphur, are introduced into the incineration unit in direct association with the combustion zone in conjunction with the supply of gas. This can take place in conjunction with the actual incineration process, or separately from it. The invention also proposes that the utilization of the mixture and mixing process in conjunction with the supply of air or some other suitable gas and/or gas-born powder or aerosol compound in itself should lead to the formation of low levels of the oxides of nitrogen, but that it does permit the utilization of other, processes either alone or in combination with this process. The invention also relates to an apparatus for the execution of the process.

REFERENCES:
patent: 4150631 (1979-04-01), Frey et al.
patent: 4294178 (1981-10-01), Borio et al.
patent: 4507075 (1985-03-01), Buss et al.
patent: 4565137 (1986-01-01), Wright
patent: 4584948 (1986-04-01), Syred et al.
patent: 4672900 (1987-06-01), Santabke et al.
patent: 5146858 (1992-09-01), Tokuda et al.

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