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首页> 外文期刊>International Journal of Scientific World >Advanced exergy analysis of distillation tower and simulation and optimization by hysys
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Advanced exergy analysis of distillation tower and simulation and optimization by hysys

机译：蒸馏塔的高级火用分析以及hysys的模拟和优化

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Exergy rate profiles, exergetic efficiency and irreversibility were used to examine the driving forces in multicomponent distillation system with the view to identifying feasible and efficient operating parameters. The mixture comprised of 5% propane, 15% iso butane, 25% n-butane, 20% iso pentane and 35% n-pentane. Operating variables were feed temperature (-30oC and -80oC), pressure (800KPa and 1200KPa), and reflux-ratio (2 and 6). Sensitivity analysis was carried out to examine the effect of varying operating parameters on the systems. Stage-by-stage system exergy analysis was estimated. Column profiles of a base case -30oC, -80oC, -30oC-reflus ratio 6,80oC -80oC reflux ratio 6 and base case reflux ratio 6 did not cross thus are thermodynamically feasible. Base case -30oC-reflux ratio 2, -80oC-reflux ratio 2, and base case-reflux ratio 2 were crossed and constricted and are infeasible. Base case results gave efficiency of 81.7% at depropanizer and 65.2% at debutanizer. Base cases sensitivity results with -30oC, -80oC and reflux ratio 6, efficiency range 57.40 – 70% and 65.20% - 54.90% for depropanizer and debutanizer respectively. Spitted cases gave 81.7% and 62.20% with more scatter profiles. Splitted feed base case -30oC design gave the lowest overall system exergy loss rate of 1.12E+6 and efficiency of 95.70%.
机译：用能级速率分布图，能效效率和不可逆性检查多组分蒸馏系统的驱动力，以便确定可行和有效的运行参数。该混合物由5％丙烷，15％异丁烷，25％正丁烷，20％异戊烷和35％正戊烷组成。操作变量为进料温度（-30oC和-80oC），压力（800KPa和1200KPa）和回流比（2和6）。进行了敏感性分析，以检查变化的操作参数对系统的影响。逐步评估了系统的火用分析。基本案例-30oC，-80oC，-30oC回流比6,80oC -80oC回流比6和基本案例回流比6的色谱柱图没有交叉，因此在热力学上是可行的。基本案例-30oC回流比2，-80oC回流比2和基本案例回流比2被交叉限制了，不可行。基本案例结果显示，脱丙烷剂的效率为81.7％，脱丁烷剂的效率为65.2％。基本情况下，脱丙烷剂和脱丁烷剂的灵敏度结果分别为-30oC，-80oC和回流比6，效率范围分别为57.40 – 70％和65.20％– 54.90％。吐出的案例散布率更高，分别为81.7％和62.20％。分离式进料基本情况-30oC设计提供了最低的整体系统火用损失率为1.12E + 6，效率为95.70％。

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