摘要
在深入研究前人工作的基础上，结合煤分子结构研究的最新进展，提出并定义了“酚类形成”、“酚类分解”、“中间酚类”、“酚类生成”和“键寿命”等概念；建立了酚类形成与分解相互竞争的Ｆ－Ｄ－Ｃ酚类生成机理模型，并以此为基础建立了描述酚类总产率ｆ（ｔ）与热解温度ｔ关系的数学模型。用正态分布函数模拟酚类形成，用威布尔分布函数模拟了酚类分解，二者结合构成了ＭＲＦ酚类生成的数学模型。采用无约束非线性单纯形搜索法进行计算机最优化计算确定了模型参数。计算得到的理论总酚产率与试验结果吻合极好，相对误差均在１０％以内。模型用于ＭＲＦ焦油产率和热解温度关系的模拟计算，结果令人满意。
Several new concepts,such as phenols formation,phenols de- composition,median phenols,phenols production,and chemical bond life,werei- dentified and defined in this paper. Based on this,a Formation-Decomposition- Competition(F-D-C) phenols production pattern was established. The mathemati- cal model of showing the relation between phenols yield f(t)and pyrolysis tempera- ture(t)is determined as follows:Phenols formation is simulated by Gausian distribution function while phenols decompositon is simulated bv Weibul distribution function. The combination of both makes up the mathematical. model of MRF phenols production. The theoretic phenols yield calculated from the model well coincides with the experimental re- sults, with relative error less than 10%。
出处
《煤炭转化》
CAS
CSCD
北大核心
1995年第1期75-81,共7页
Coal Conversion
