Catalytic co-combustion of biomass and brown coal in a fluidized bed:Economic and environmental benefits

作     者：Yury V.Dubinin Nikolay A.Yazykov Petr M.Yeletsky Roman B.Tabakaev Aleksandra I.Belyanovskaya Vadim A.Yakovlev Yury V.Dubinin;Nikolay A.Yazykov;Petr M.Yeletsky;Roman B.Tabakaev;Aleksandra I.Belyanovskaya;Vadim A.Yakovlev

作者机构：Federal Research Center Boreskov Institute of Catalysis SB RASLavrentiev Ave.5Novosibirsk630090Russia University of TyumenVolodarskogo str.6Tyumen625003Russia 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2024年第140卷第6期

页      面：24-36页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：funded by the Ministry of Science and Higher Education of the Russian Federation,within the governmental order for the Boreskov Institute of Catalysis(project AAAA-A21-121011390007-7) The economic assessment and Environmental impact calculation were performed as part of the Tyumen University state assignment[project No.FEWZ2021–0014(Scientific and technical foundations and applied solutions for integrated energy and thermal processing of biomass to ensure environmentally friendly technologies in energy industry and metallurgy)]。 

主　　题：Co-combustion Fluidized catalyst bed Biomass Coal Economic effect Environmental impact 

摘      要：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℃.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_(2)CO and NOxis reduced(CO_(2)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℃.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.