CAJ | 학술논문

首先拟合了Aspen Plus中乙醇-水的二元交互参数,使其计算结果更符合实际.其次通过分析乙醇-水精馏二塔(C31103)与新型吸附系统工艺流程,计算了C31103与吸附系统的主要能耗,得到了二者关于C31103塔顶采出中乙醇质量分数xD的关系式.并计算得到淡酒量和塔顶采出量关于xD的关系式.运用Aspen Plus软件对C31103进行稳态优化,计算出xD在0.945~0.88之间时的能耗与xD的关系,确定最适宜xD为0.9~0.92,并通过模拟得到各xD下的淡酒量和塔顶采出量等结果,比较淡酒量的计算结果和模拟结果,得到相对误差小于4%,证实了能耗模型的准确性.
수선의합료Aspen Plus중을순-수적이원교호삼수,사기계산결과경부합실제.기차통과분석을순-수정류이탑(C31103)여신형흡부계통공예류정,계산료C31103여흡부계통적주요능모,득도료이자관우C31103탑정채출중을순질량분수xD적관계식.병계산득도담주량화탑정채출량관우xD적관계식.운용Aspen Plus연건대C31103진행은태우화,계산출xD재0.945~0.88지간시적능모여xD적관계,학정최괄의xD위0.9~0.92,병통과모의득도각xD하적담주량화탑정채출량등결과,비교담주량적계산결과화모의결과,득도상대오차소우4%,증실료능모모형적준학성.
In this paper,binary interaction parameters were firstly fitted by using Aspen Plus to make its calculation results practical. Secondly based on the analysis of ethanol-water distillation column (C31103) and adsorption system,the energy consumption for both parts was calculated and the relationship between energy consumption and mass fraction of ethanol of C31103 distillation (xD) was established as well. The amount of dilute alcohol was calculated in association withxD. A series of energy consumption were calculated whenxD was between 0.945—0.88 with the increment 0.005. It was concluded that the appropriatexD was within 0.9 and 0.92. The amount of distillate alcohol and the distillation of C31103 under differentxD was calculated by simulation. After analyzing and comparing the results by calculation and simulation,it was obtained that the relative errors were less than 4%, which confirmed the accuracy of the model of energy consumption.