醋酸仲丁酯反应塔冷却水温度及流量的优化

Optimization for Flowrate and Temperature of Cooling Water in the Sec-Butyl Acetate Reaction Tower

醋酸仲丁酯反应塔反应顺利进行的关键是反应温度必须控制在一定波动范围以内,由于反应本身是放热反应,需利用一定温度的冷却水从反应塔管外换热带走多余的热量,因此,要将反应物料反应温度控制在要求范围内,确保反应顺利进行,冷却水进出口温度以及流量的确定显得至关重要;该文在反应塔设计条件、反应总转化率及热负荷、反应物料进料量已知的情况下,运用手工试差法结合excel表格,通过假设的冷却水操作温度条件,计算醋酸仲丁酯反应塔冷却水流量及冷却水和反应的温度分布,当得到的反应温度分布符合温度波动范围要求时,反过来证明前面假设的反应所需冷却水操作温度条件是合适的,由此得到需要的冷却水温度及流量。

The reaction temperature in the sec-butyl acetate reaction tower should be controlled in the specified range. Because the reaction is exothermic the cooling water in the tubes of reactor will remove the heat. So the temperature and flowrate of cooling water at in and out of tubes should be defined. While the design condition of reaction towers, translate rate and heat duty, the flow rate of reactant, is known. The flowrate of cooling water, temperature change range of cooling water and reactant is calculated via iterative estimation and excel software based on assumptive working temperature of cooling water ; when the change range of calculated reaction temperature is in required range, it means assumptive working temperature of cooling water is right. So the suitable temperature and flowrate of cooling water can be defined.