NUMERICAL INVESTIGATION OF THE PROCESS OF PEAT GASIFICATION IN AN OXYGEN-ENRICHED VAPOR–AIR MIXTURE IN A FIXED BED UNDER A PRESSURE OF 1.5 MPa

A two-dimensional system of parabolic and hyperbolic equations has been constructed describing the aerodynamics, heat and mass transfer, and chemical reaction of a gas-dispersion medium in a fi xed bed. An investigation has been made into the effects of particle motion velocity and H₂O content in a vapor–air mixture on the temperature and concentration phase fi elds, unburned carbon loss, grate slagging, steadiness (stabilization) and stationarity of the gasifi cation process, and the calorifi c value of synthetic gas. An original method has been proposed for the supply of coal dust into the burners using generator (producer) gas as a working medium ejecting fi ne dust
   
Author:  B. B. Rokhman
Keywords:  fi xed bed, coal, thermal conductivity, heat transfer, steam–oxygen gasifi cation, conductive and radiative heat transfer, temperature, chemical reactions
Page:  1290