Simulation Model for the Production of Hot and Reducing Gases in the Resonant Pipe

摘要

The suggestion to gasify coal in a resonant pipe was made before 1950 and was seized upon in the Institute for Chemical Engineering, since it had been found that the kinetics of the reaction processes in the resonant pipe made possible very high specific flow rates of material with nearly total conversion. Besides the practical problems that arise in other dust gasification processes, such as metering of materials, discharging reaction gases, guiding slag, etc., the problems involved in the commercial implementation of this reaction involve the extremely large number of influencing parameters that have to be taken into consideration in managing the process and whose interactions due to the non-steady-state reaction can scarcely be estimated. This resulted in the setting of a goal to carry out investigations of the influence of raw materials, the reactor and the operating conditions on the process and to create a simulation model of the process. That model should reproduce the dynamic course of the reaction and make possible a calculation of the time variations of the process's state variables as a function of the parameters that are introduced. In that way, deeper knowledge about the behavior of the process can be obtained. In addition, precalculations can be performed with the aim of achieving an engineering and economic optimization of the gasification process in the resonant pipe. (ERA citation 05:019954)