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Application of Thermogravimetric Analysis to Study the Thermal Degradation of Solid and Liquid Organic Wastes

机译：热重分析在固体和液体有机废物热降解研究中的应用

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摘要

In this work, the thermolysis of composite binary mixtures of refinery or coal-processing waste with waste biomass and D-grade (long-flame) coal was analyzed in order to increase the efficiency of the cothermolysis of chemically different organic wastes mainly because of the synergism of the thermolysis of mixture components and, correspondingly, the selectivity of formation of high-quality by-products (solid, gaseous, or liquid). A new approach to the analysis of thermogravimetric data was proposed and developed as applied to complex binary mixtures of carbon-containing materials. This approach was based on (1) the preliminary separation of the thermal degradation of individual carbon-containing mixture components into individual structural constituents and (2) the monitoring of the conversion of each particular structure fragment as a constituent of the mixtures in the course of the cothermolysis of the mixtures of starting components. Based on the approach developed, data on the main synergism effects in the course of cothermolysis in the binary test systems were obtained: the temperature regions of the appearance of these effects were distinguished, the main conclusions were made with respect to particular structure fragments in complex organic wastes responsible for the interaction of components in composite systems, and the directions (positive or negative) of changes in the yields of solid by-products and the degrees of effects (difference between the yields of cothermolysis by-products in each particular region of the appearance of synergistic effects in the systems) were determined. Additionally, the influence of alkali metal carbonate additives on synergistic effects in the interaction between binary system components under the process conditions of cothermolysis was analyzed.
机译：在这项工作中，分析了炼油厂或煤炭加工废物与废物生物质和D级（长焰）煤的复合二元混合物的热解，以提高化学上不同的有机废物的共热效率，主要是因为混合物成分热解的协同作用，以及相应地，形成高质量副产物（固体，气体或液体）的选择性。提出并开发了一种用于分析热重数据的新方法，该方法适用于含碳材料的复杂二元混合物。该方法基于（1）将各个含碳混合物组分的热降解初步分离为各个结构成分，以及（2）在混合过程中监控作为混合物成分的每个特定结构片段的转化起始组分混合物的共热解。基于开发的方法，获得了在二元测试系统中共热分解过程中主要协同效应的数据：区分了这些效应出现的温度区域，针对复杂结构中的特定结构片段做出了主要结论。有机废物负责复合系统中各组分之间的相互作用，以及固体副产物的收率变化的方向（正向或负向）和影响程度（在每个特定区域中，共热解副产物的收率之间的差异）确定了系统中协同效应的出现）。此外，分析了碱金属碳酸盐添加剂在共热工艺条件下对二元体系组分之间相互作用的协同效应的影响。

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  • 来源
    《Solid Fuel Chemistry》 |2009年第4期|247-266|共20页
  • 作者

    E. S. Lygina; A. F. Dmitruk; S. B. Lyubchik; V. F. Tretyakov;

  • 作者单位

    Tugan-Baranovsky State University of Economy and Trade, Donetsk, Ukraine;

    Tugan-Baranovsky State University of Economy and Trade, Donetsk, Ukraine;

    REQU1MTE-CQFB, Faculty of Sciences and Technology, New University Lisbon, Portugal;

    Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 119991 Russia;

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