Coal gasification in a stirred bed reactor

Two Canadian non-caking coal chars of millimetre particle size were gasified in a stirred bed reactor at atmospheric pressure using steam-nitrogen mixtures. Experimental results showed that the reaction atmosphere changed with carbon conversion and the unit operated as a typical integral reactor. Some properties of the partially reacted chars were measured. The effects of gas superficial velocity, char particle size, steam partial pressure and temperature on conversion were examined. The role of transport resistance was assessed and empirical kinetic models were tested. Copyright (C) 1996 Elsevier Science Ltd.