Computational and Experimental Study of Carbon Dioxide Sorption Using Dolomite

Nowadays, such areas of biomass processing as pyrolysis, gasification, and liquefaction continue to be improved in industrialized countries. Among modern technologies for the energy use of plant biomass, thermochemical conversion by pyrolysis is the most versatile, efficient, and cost-effective. A promising area for the development of the energy sector in the Republic of Belarus is the widespread use of wood biofuels, while the most promising one is oxygen-free thermochemical conversion of biomass. The development and implementation of new energyefficient equipment for the thermochemical conversion of wood biomass will provide a reduction of energy dependence and mitigate of the negative impact of the country's energy sector on the environment. The use of it in an amount not exceeding its annual increase is neutral with respect to carbon dioxide emissions into the atmosphere, which contributes to reducing emissions of this greenhouse gas, and therefore corresponds to the solution of preventing an environmental catastrophe on the planet. Pyrolysis makes it possible to obtain high-quality, environmentally friendly solid, liquid and gaseous fuels from almost any raw material containing organic hydrocarbon components. One of the significant disadvantages of the thermochemical conversion of biomass is the formation of large amount of carbon dioxide, which under certain conditions can account for up to 50 % of the volume of the gas being obtained. This results in a low calorific value of the thermochemical conversion products, significantly reducing the efficiency of the process. Biomass is a neutral fuel in terms of the CO2 balance in nature. However, to increase the specific heat of combustion of fuel gases, CO2 removal is necessary. In addition to increasing the heat of combustion, CO2 removal reduces transportation costs and protects pipelines from corrosion. Complete CO2 removal from fuel gases can significantly increase their calorific value.

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