Modelling and simulation of time varying slag flow in a Prenflo entrained-flow gasifier

A slag building simplified model has been developed to simulate the time varying phenomena connected to the slag accumulation and flow on the walls of a Prenflo coal gasifier. For this purpose this model has been integrated with a three-dimensional code which provides the temperature and concentration profiles of the gas phase within the gasifier. The integrated models have been used to evaluate the effects of changes of the gasifier operating conditions on the slag behaviour.