MATHEMATICAL MODELING OF CHEMICAL PROCESSES FOR LOW BTU/GASIFICATION OF COAL FOR ELECTRIC POWER GENERATION

摘要

A mathematical model was formulated to predict the performance of the gasifier designed for Combustion Engineerings’s 5 tons per hour, atmospheric pressure, entrained type, coal gasification process development unit (PDU). For a given set of reactant input conditions, a specified gasifier geometry, and operating conditions, the computer program, based on the mathematical model, is able to predict the product gas composition and heating value, gasifier heat loss, and the recycle char flow rate. A sensitivity study of the various gasifier assumptions was also made. Finally, a parametric study of the gasifier performance was conducted to estimate the relative effects of the input and operating variables.