【摘要】：基于結(jié)構(gòu)導(dǎo)向集總方法,設(shè)計(jì)了包含烴類結(jié)構(gòu)和雜原子結(jié)構(gòu)的22個(gè)結(jié)構(gòu)向量,構(gòu)建了代表催化裂化原料分子組成的14 692種典型分子的結(jié)構(gòu)向量,根據(jù)催化裂化反應(yīng)機(jī)理和MIP工藝特征,編制了催化裂化反應(yīng)規(guī)則,構(gòu)建了反應(yīng)網(wǎng)絡(luò),通過改進(jìn)的Runge-Kutta法求解,建立了基于結(jié)構(gòu)導(dǎo)向集總的分子尺度的MIP工藝反應(yīng)動(dòng)力學(xué)模型,通過MIP裝置工業(yè)數(shù)據(jù)驗(yàn)證了模型的可靠性。實(shí)驗(yàn)結(jié)果表明,此模型與傳統(tǒng)的催化裂化反應(yīng)動(dòng)力學(xué)模型相比,在反應(yīng)網(wǎng)絡(luò)中引入反應(yīng)熱效應(yīng),可更準(zhǔn)確地描述提升管反應(yīng)器中反應(yīng)溫度的變化及其對催化裂化反應(yīng)過程的影響;模型的可靠性驗(yàn)證實(shí)驗(yàn)表明,預(yù)測值與工業(yè)數(shù)據(jù)的最大誤差在1.0%左右,溫度的預(yù)測誤差不超過2℃。
[Abstract]:Based on the structure-oriented lumped method, 22 structural vectors including hydrocarbon and hetero-atomic structures were designed, and the structural vectors of 14,692 typical molecules representing the molecular composition of FCC feedstocks were constructed. According to the mechanism of catalytic cracking reaction and the characteristics of MIP process, the catalytic cracking reaction rules were worked out, and the reaction network was constructed. Through the improved Runge-Kutta method, the kinetic model of the MIP process reaction was established based on the total molecular scale of the structure guidance set. The reliability of the model is verified by MIP industrial data. The experimental results show that compared with the traditional catalytic cracking reaction kinetic model, the reaction heat effect is introduced into the reaction network. The change of reaction temperature in riser reactor and its influence on catalytic cracking process can be described more accurately. The model reliability verification experiment shows that the maximum error between the predicted value and the industrial data is about 1.0%, and the temperature prediction error is less than 2 鈩，

本文編號(hào)：2375675