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Different Forms Of Sulfur In The Coal Nitrogen Precipitation Pilot Study Of The Impact Of The Law

Posted on:2007-01-29Degree:MasterType:Thesis
Country:ChinaCandidate:H MengFull Text:PDF
GTID:2191360185483819Subject:Thermal Engineering
Abstract/Summary:PDF Full Text Request
The coal resource is the most abundant of various energy resources in China. From the total energy consumption and composition of view, the share of coal is always at the top. Actually the primary energy sources is coal-based in china result in the serious coal smoke pollution which mainly to SO2 and NOX. A great deal of research for the mechanisms and control measures of SO2 has been done, and a series of effective solutions has been developed. But the generative process of NOX is comparatively complex. The control of NOX adopted changing combustion condition; that is the low NOX combustion technology. But the coal combustion is a complex process. And, the generative process of various components is parallel and across, including the interactions between sulfur components and nitrogenous components. The paper combine the above status, and do in-depth system research of the influence of the various sulfur forms to the nitrogen' analyzing in the pyrogenation process of several representative coal.The paper adopts NO as the research object of the final product of the generation of the nitrogen. It can be divided into two broad categories from the influence manner of sulfur components to the generation of the nitrogen. First, the direct impact, second, the indirect impact. Specifically contain the following four aspects: first, the influence to NO in the process to separate out and oxide of sulfur; second, the influence to NO of the final product of sulfur combustion; third, the influence to NO' former in the process of sulfur thermal transition; forth, the influence to NO' former of SO2. The influence of sulfur to the generation of the nitrogen will be discussed from above several aspects.First of all, the paper adopts a exist sulfur form in the coal- single-sulfur as the research object and select some representative coal such as Beizhao, Laicheng, Liaocheng, Fengfeng as the experiment coal. The generation change of NO is observed after adding to different quality of the single-sulfur to the four coals. The result indicates that the single-sulfur generate a certain impact on NO which mostly incarnate the effect to NO' former-NHi to be translated into more N2. One part of NO is inverted to N2 here. One hand is because of the direct impact of sulfur and another hand is the consumption of the oxide group because of the addition of sulfur. The influence of single- sulfur to NO is related to the kind of coal. For...
Keywords/Search Tags:NO, precipitation, sulfur forms, coal, pyrolysis
PDF Full Text Request
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