Dubinin Yury V, Yazykov Nikolay A, Yeletsky Petr M, Tabakaev Roman B, Belyanovskaya Aleksandra I, Yakovlev Vadim A
Federal Research Center Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russia.
Federal Research Center Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russia.
J Environ Sci (China). 2024 Jun;140:24-36. doi: 10.1016/j.jes.2023.02.045. Epub 2023 Mar 5.
The work is devoted to the study of combustion of brown coal, pine sawdust, and their mixtures in a fluidized bed of catalyst at 600-750°С. It is shown that an increase in the content of sawdust in a mixture with brown coal leads to an increase in the burnout degree of solid fuel from 94.4% to 99.9%, while the emission of greenhouse gases in the form of CO CO and NO is reduced (CO from the biomass is not included in the balance). The high content of alkaline earth metal oxides (CaO and MgO) in the mineral part of brown coal, sawdust, and their mixtures eliminates the emission of sulfur oxides and the slagging of heat-exchange surfaces during the combustion in a fluidized bed of catalyst. The optimal temperature, when the highest burnout degree of the above fuels is achieved in the combustion is 750°С. It is also shown that the increase in temperature and the content of sawdust in the composition of the fuel mixtures has a positive effect on the economic and environmental process indicators.
这项工作致力于研究褐煤、松木锯末及其混合物在600 - 750°C的催化剂流化床中的燃烧情况。结果表明，褐煤与锯末混合物中锯末含量的增加会使固体燃料的燃尽程度从94.4%提高到99.9%，同时以一氧化碳（CO）和一氧化氮（NO）形式排放的温室气体减少（生物质中的CO不包括在平衡范围内）。褐煤、锯末及其混合物矿物部分中高含量的碱土金属氧化物（CaO和MgO）消除了在催化剂流化床燃烧过程中硫氧化物的排放以及热交换表面的结渣现象。在燃烧过程中实现上述燃料最高燃尽程度时的最佳温度为750°C。研究还表明，温度的升高以及燃料混合物成分中锯末含量的增加对经济和环境过程指标具有积极影响。
