CAJ | 학술논문

以环丁砜-芳烃-非芳烃抽提体系液液相平衡实验数据为基础，利用Aspen Plus化工流程模拟软件，开发了1套用于芳烃液液抽提装置模拟的稳态工艺模型。基于某石化企业实际运行数据，采用该稳态工艺模型实现了对芳烃抽提装置的过程模拟。结果表明，各塔工艺操作参数与工业实际情况吻合较好。在此基础上，通过灵敏度分析考察了反洗比、溶剂比和回流比等重要操作参数对产品质量及装置能耗的影响，获得了液液抽提装置的最佳工艺操作参数，如抽提塔反洗比为0.38，汽提塔溶剂比为1.06和溶剂回收塔回流比为0.80等。优化结果与目前实际运行工况相比，可有效降低蒸汽消耗。
이배정풍-방경-비방경추제체계액액상평형실험수거위기출，이용Aspen Plus화공류정모의연건，개발료1투용우방경액액추제장치모의적은태공예모형。기우모석화기업실제운행수거，채용해은태공예모형실현료대방경추제장치적과정모의。결과표명，각탑공예조작삼수여공업실제정황문합교호。재차기출상，통과령민도분석고찰료반세비、용제비화회류비등중요조작삼수대산품질량급장치능모적영향，획득료액액추제장치적최가공예조작삼수，여추제탑반세비위0.38，기제탑용제비위1.06화용제회수탑회류비위0.80등。우화결과여목전실제운행공황상비，가유효강저증기소모。
Based on the experimental data of liquid-liquid phase equilibrium of extraction systems for sulfolane, aromatics and non-aromatics, the chemical process simulation software, Aspen Plus was used to develop a steady-state process model for simulating the separation plant of aromatics by liquid-liquid extraction. The process simulation for aromatics extraction has been accomplished by the steady-state process model according to actual operation data from the petrochemical enterprise. Simulation results show that the calculations of operation parameters of each column agree well with the actual operation data. Based on it, the influences of several important parameters on product quality and plant energy consumption were investigated by sensitivity analysis, including backwash ratio, solvent ratio and reflux ratio. And the optimum operation parameters are obtained such as backwash ratio for extraction column of 0.38, solvent ratio for stripping column of 1.06 and reflux ratio for solvent recovery column of 0.80 etc. Compared to actual operation condition, the optimization conditions could effectively reduce vapour consumption.