Abstract
The object of research is the combined 2-component solid fuel «coal-municipal solid waste» (MSW) in 5 parts with concentrations of 0–100 (wt. %) of each component. One of the most problematic places is the improvement of solid waste gasification processes, including the optimization of synthesis gas characteristics.In the course of the study, laboratory thermogravity equipment is used, which is a physical model of a flow-type reactor with recirculation of intermediate reaction products. This installation includes a TGA (thermogravimetric analysis) installation unit, a chromatograph, a computer with a printer, and an automatic data-tracing system using computer methods, namely, thermogravimetric and chromatographic analysis.The study shows that the method of complex (TGA+gas) laboratory analysis can evaluate the calorific value of non-traditional, including combined, fuels. The determination of the dependence of the calorific value of gasification products of combined fuels on their composition and process parameters is in the range of 6–12 MJ/m3. This is due to the fact that the method and installation proposed in the work has a number of features, the ability to support the calorific value of non-traditional, including combined fuels at a given level. Achievement of the effect is expected due to the choice of concentrations of components corresponding to a given value of Qнр. Thanks to this, it is possible to obtain constant values of Qнр upon receipt of various lots of solid waste for the production of synthesis gas without correction of technological parameters.The technique presented in the work allows for an express assessment of various batches of solid waste and determine the optimal ratio of coal-solid waste. Compared with similar well-known methods, this provides the following advantages: stability of technological parameters, intensification of production and cheaper synthesis gas.
Highlights
Over the past two decades, interest in the energyefficient use of municipal solid waste has increased significantly [1,2,3]
Research is being carried out in the direction of joint gasification at existing gas generator sets [8,9,10], that is, joint gasification has become an attractive option for improving gasification processes, in particular for optimizing the characteristics of synthesis gas
The relevance of this research lies in a detailed study of the influence of the parameters of the process of gasification of combined fuels on the calorific value of the resulting synthesis gas
Summary
Over the past two decades, interest in the energyefficient use of municipal solid waste has increased significantly [1,2,3]. Studies conducted to determine the morphological and elemental composition of municipal solid waste (MSW) [5,6,7]. It is proved that solid waste (or individual components) can be used as fuel in the processes of thermochemical conversion. The research results are still not sufficient to create a technology for the production of standardized combined fuels such as coal-solid waste for existing gasification systems. The relevance of this research lies in a detailed study of the influence of the parameters of the process of gasification of combined fuels on the calorific value of the resulting synthesis gas. The aim of research is the experimental determination of the dependence of the calorific value of gasification products of combined fuels on their composition and process parameters. Note: * – corresponds to the number of an individual experiment; MSW – municipal solid waste
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