文献类型：期刊文献

英文题名：Heat Integration, Simultaneous Structure and Parameter Optimisation, and Techno-Economic Evaluation of Waste Heat Recovery Systems for Petrochemical Industry

作者：Ding, Yuxing[1,2]; Liu, Yurong[1]; Wang, Meihong[1,2]; Du, Wenli[1,3]; Qian, Feng[1,3]

机构：[1] Key Laboratory of Smart Manufacturing in Energy Chemical Process, Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China; [2] Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield, S1 3JD, United Kingdom; [3] Engineering Research Center of Process System Engineering, Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230297628)

语种：英文

外文关键词：Economic analysis - Energy conservation - Heat exchangers - Petrochemical plants - Petrochemicals - Profitability - Structural optimization - Waste heat - Waste heat utilization

摘要：Energy conservation in the petrochemical sector holds the key to its financial viability. The pervasive application of Heat Exchanger Networks (HEN) exemplifies the industry's efforts in heat recovery. Yet, despite its widespread adoption, an alarming quantum of low-grade heat remains squandered, underscoring the potential for augmenting energy savings through more effective utilization of this heat. Recognizing the pivotal role of the synergistic interaction between the process and the heat recovery system in maximizing energy retrieval, an innovative approach is proposed. Subsequently, a strategic diagnostic was proposed to incorporate these sub-systems into a cohesive, optimisation framework. The findings suggest a considerable improvement in heat recovery and an amplification in ORC efficiency from a mere 7.64% to an impressive 11.38%. The enhanced heat recovery further translated into a reduced need for cold utility, thereby minimizing cooler deployment. Moreover, the optimized ORC manifested in heightened net power generation, consequently elevating electricity revenues. Despite a nominal surge in equipment costs, the aggregate profit witnessed a substantial hike from 165.19 M$/year to 178.79 M$/year. This study offers valuable guidance for the design and operation of petrochemical industries, serving as a roadmap to energy conservation and enhanced profitability. ? 2023, The Authors. All rights reserved.