Coal gasification by a mixture of air and carbon dioxide in the filtration combustion mode

摘要

This paper presents the results of a numerical and experimental study of gasification of carbonaceous materials in the filtration combustion mode using mixtures of air with CO2 as an oxidizer. The results obtained are compared with the results on gasification of carbonaceous materials by a steam-air mixture. It is shown that the replacement of steam in the gaseous oxidizer by an equal volume CO2 leads to a marked reduction in the combustion temperature. The maximum calorific values of the product gas in coal gasification by a mixture of air and CO2 are close to the values obtained for steam-air gasification.