利用低温碳化技术生产清洁固体燃料

Clean solid fuels production by low temperature carbonisation for sustainable energy generation

介绍了一种利用低温碳化技术开发出的低成本、高效率的劣质固体燃料(结合生物能、褐煤、煤、原煤)预处理技术。这种预处理过程在燃烧之前的小规模的还原性气氛中除去有害的气体污染物(如氮、硫、氯、汞),从而提高燃料效率。它主要应用在小于50MW的小型电厂和热电联产机组,以及小于300MW的中型电厂。

For sustainable and sound economic development there is a strong demand for extended clean power production, which is affordable by cost, arboniza existing coal based plants and large volumes of renewable biomass and continuously waste streams as well, offering high level of process safety with comprehensive long term management of all residual streams from the operations. However, the arbonization of these fuels entails the risk of severe environmental impact due to the presence in them of polluting compounds, i.e. N, S, Hg, Cl etc. A preventive technique for the revitalization of the solid fuel industry by removing barriers by development of cost effective preventive pre-treatment of low-grade solid fuels (combined renewable biomass, lignite, coal, derived fuels) through application of low temperature arbonization technology is described in this work. This pre-treatment process is made in downsized reductive environment for removal of hazardous air pollutants (such as nitrogen, sulphur, chlorine, mercury) prior to burning and by using the clean fuel to improve the combustion efficiency as well. The integrated application is primarily for the small-scale power plants less than 50 MW power capacity and CHP co-generation, and medium scale power plants less than 300 MW power capacity as well.