Characteristics of the Air–Steam Gasification of Carbonaceous Fuels by Filtration Combustion at an Elevated Pressure

Abstract

Calculation results on the stationary mode of the filtration combustion of carbon mixtures with a solid incombustible material in a counterflow of an oxidant gas (air–steam mixture) under the assumption of a thermodynamically equilibrium composition of gaseous products and a self-consistent combustion temperature are presented. The influence of pressure in the reactor on the temperature of combustion and composition of gaseous products is considered. An increase in the pressure leads to a higher combustion temperature, a lower hydrogen yield, and a decreasing sensitivity of the combustion temperature to the concentration of water vapor in the oxidant gas.