چکیده مقاله
Despite distillation's widespread use in industry, its substantial energy demands necessitate heat integration, particularly in light of the recent energy crisis This paper introduces thermal coupling as an innovative method for separating a ternary mixture of n pentane, n hexane, and n heptane The proposed dual column system leverages vapor from the first column to supply the second, removing the need for a reboiler in the latter The thermal coupling's effectiveness is assessed through two classical configurations—direct and indirect—both with and without heat integration The separation processes are simulated in Aspen HYSYS using rigorous solving methods rather than shortcuts for distillation columns Exergy analysis and CO2 emissions measurement are conducted to provide a comprehensive assessment of the processes in addition to energy analysis The findings demonstrate that the direct sequence outperforms the indirect sequence Among the four processes examined, direct thermal coupling is identified as the most efficient Compared to the indirect process without heat integration, the direct thermal coupling sequence reduces energy consumption, exergy loss and CO2 emissions by 69%, 55%, and 68 83%, respectively
کلیدواژهها
نویسندگان
Shohreh Ebrahimi
Taraneh Mostofian Department of Chemical and Petroleum Engineering, Sharif University of Technology, Azadi Street, Tehran, IranMaryam Noori Keshtkar Department of Chemical and Petroleum Engineering, Sharif University of Technology, Azadi Street, Tehran, Iran
Taraneh Mostofian
Department of Chemical and Petroleum Engineering, Sharif University of Technology, Azadi Street, Tehran, Iran
Maryam Noori Keshtkar
Department of Chemical and Petroleum Engineering, Sharif University of Technology, Azadi Street, Tehran, Iran
شیوه ارجاع
Ebrahimi, Shohreh and Mostofian, Taraneh and Noori Keshtkar, Maryam,1403,Environmental, Energy and Exergy Assessment of Thermal Coupling Process in Heat Integration of Distillation Columns,The second national and the first international conference of environmental challenges: green industry and mining ,Tehran
ارائهشده در
مجموعه مقالات دومین کنفرانس ملی و اولین کنفرانس بین المللی چالش های محیط زیست: صنعت و معدن سبز25 اردیبهشت 1403 · تهران