计算机与应用化学
計算機與應用化學
계산궤여응용화학
COMPUTERS AND APPLIED CHEMISTRY
2015年
4期
489-492
,共4页
二乙苯%环丁砜%萃取精馏%Aspen Plus模拟
二乙苯%環丁砜%萃取精餾%Aspen Plus模擬
이을분%배정풍%췌취정류%Aspen Plus모의
diethylbenzene%sulfolane%exaction distillation%Aspen Plus simulation
采用单级循环汽液平衡釜测定混合二乙苯不同组分与溶剂之间的汽液平衡数据，计算间二乙苯与主要组分之间的相对挥发度，并与模拟结果进行对比，确定萃取精馏分离的最佳溶剂。采用Aspen Plus软件进行模拟研究，考察了理论板数、塔顶采出比、溶剂比、回流比等因素对分离过程的影响。模拟结果表明，在理论板数为80块、进料位置为第40块、塔顶采出料比为0.7：1、溶剂比为5：1及回流比为5：1的优化条件下，间二乙苯质量含量由59.00%提高到79.00%，收率达到93.73%以上。本文研究为进一步萃取和结晶提取间二乙苯提供条件。
採用單級循環汽液平衡釜測定混閤二乙苯不同組分與溶劑之間的汽液平衡數據，計算間二乙苯與主要組分之間的相對揮髮度，併與模擬結果進行對比，確定萃取精餾分離的最佳溶劑。採用Aspen Plus軟件進行模擬研究，攷察瞭理論闆數、塔頂採齣比、溶劑比、迴流比等因素對分離過程的影響。模擬結果錶明，在理論闆數為80塊、進料位置為第40塊、塔頂採齣料比為0.7：1、溶劑比為5：1及迴流比為5：1的優化條件下，間二乙苯質量含量由59.00%提高到79.00%，收率達到93.73%以上。本文研究為進一步萃取和結晶提取間二乙苯提供條件。
채용단급순배기액평형부측정혼합이을분불동조분여용제지간적기액평형수거，계산간이을분여주요조분지간적상대휘발도，병여모의결과진행대비，학정췌취정류분리적최가용제。채용Aspen Plus연건진행모의연구，고찰료이론판수、탑정채출비、용제비、회류비등인소대분리과정적영향。모의결과표명，재이론판수위80괴、진료위치위제40괴、탑정채출료비위0.7：1、용제비위5：1급회류비위5：1적우화조건하，간이을분질량함량유59.00%제고도79.00%，수솔체도93.73%이상。본문연구위진일보췌취화결정제취간이을분제공조건。
By measuring the vapor-liquid equilibrium data of diethylbenzene mixture-solvent through a combination of single stage gas-liquid equilibrium pot, analysis of relative volatility of m-diethylbenzene to main components and Aspen Plus software simulation, sulfolane, was selected to be the best solvent. The extractive separation results of diethylbenzene mixture were simulated by Aspen Plus process simulating software; the effects of theoretical plate number, tower top output rate, ratio of solvent to feedstock and reflux ratio were investigated. The results showed that the purity of m-diethylbenzene was improved from 59.00 % to 79.00 % with the yield of 93.73 % under the optimal operation conditions of theoretical plate number was 80, input number was 40, tower top output rate was 0.7:1, solvent’s feed rate was 5:1, and reflux ratio was 5:1. The result of this study will provide the basis for future extraction and crystallization experiment.
