催化重整反应器的模拟研究

Study on kinetic simulation of catalytic reforming reactor

按照集总理论划分原则,在前人研究基础上,改进了13集总催化重整反应模型。改进后的模型将重整物料分为C6、C7和C8^+,每一个碳数的化合物又划分为正构烷烃、异构烷烃、环烷烃和芳烃4个集总,裂化产物C5^-作为一个集总。集总组分之间主要发生加氢裂化、烷烃异构化、烷烃环化和环烃芳化反应,根据各个反应动力学模型和重整反应器数学模型编制了模拟计算软件。该软件较简便准确地预测了重整产物组成、重整反应器温降和汽油辛烷值。

According to Lumping theory, the mathematical models of 13 Lumping catalytic reforming reactions have been improved for Radial-flow reactors. The models lumped reactants into three lumps including C6, C7 and C8^＋. Each carbon number lump was divided into normal-paraffin, iso-paraffin, naphthene and aromatics. Cracking products with less carbon number were taken as one lump C5^-. Four main reactions among these components were as follows：cracking reactions to form C5^-, paraffin isomerization, paraffin dehydrogenation and cyclization, naphthene dehydrogenation and aromatization. According to the mathematical models of reaction kinetics and reactor, a simulant software is compiled to predict octane number of gasoline, the products composition and the temperature drop.