生物质循环流化床气化炉的数学模型研究

MATHEMATIC MODEL STUDY ON CIRCULATING FLUIDIZED BED GASIFIER FOR BIOMASS

以试验为基础，根据有关化学动力学、快速流态化模型等资料，结合原料的宽筛分特性，建立了生物质循环流化床气化炉（ＣＦＢＧ）的数学模型，并用Ｑｕｉｃｋ－Ｂａｓｉｃ语言编制程序。利用模型对循环流化床木粉气化炉的运行参数进行模拟计算，模拟结果与试验数据符合良好，在一定程度上证明了模型的有效性和可靠性。利用该模型不仅能选择气化炉的最佳运行工况，而且可为同类反应器设计提供理论指导。

ased on the experiment, according to the principles of chemical kinetics,of fast fluidized bed model and the wide-screening properties of feedstock etc, this paper studied and established the mathematic model of circulating fluidized bed gasifier for biomass. Utilizing Quick-Basic language, a program is compiled to simulate the parameters which describe the characteristics of the circulating fluidized bed gasifier for wood powders. The calculated data are compared with the experimental results. Both are fit quite well. So that the model can be used to select optimum operating parameters and to provide theoretical instruction for designing the same kind of reactors.