基于夹点技术的苯酚丙酮装置能量分析与节能改造  

ENERGY ANALYSIS AND ENERGY-SAVING RECONSTRUCTION OF PHENOL-ACETONE PLANT BASED ON PINCH TECHNOLOGY

作　　者：刘兴隆 刘睿[1] 孙兰义[1] Liu Xinglong;Liu Rui;Sun Lanyi(State Key Laboratory of Heavy Oil Processing,China University of Petroleum(East China),Qingdao,Shandong,266580)

机构地区：[1]中国石油大学(华东)重质油国家重点实验室,山东青岛266580

出　　处：《石油化工设计》2021年第3期68-74,I0004,共8页Petrochemical Design

摘　　要：以苯酚-丙酮装置为研究对象,使用Aspen Plus对异丙苯氧化法生产苯酚丙酮的UOP工艺进行了全流程模拟。以模拟结果为基础,对流程中所涉及的精馏塔进行了夹点分析,提出了热集成方案。对塔系与背景过程热集成的可行性进行分析,指出了塔系与背景过程匹配换热的可能性,为换热网络的设计中物流数据的提取提供基础。基于夹点设计原则得到理论的最大换热回收网络,与初始流程相比,在最终的节能方案中,冷公用工程由96.69 MW降至70.98 MW,节能26.59%;热公用工程由55.41 MW降至29.71 MW,节能46.38%,取得了很好的节能成果。In this paper,the UOP process for phenol-acetone production by isopropyl benzene oxidation was simulated using Aspen Plus.Based on the simulation results,a pinch analysis of the distillation tower involved in the process was carried out,and a heat integration scheme was proposed.Subsequently,the feasibility of heat integration between the tower system and the background process was analyzed,and the possibility of matching the heat exchange between the tower system and the background process was pointed out,which provided a basis for the extraction of logistics data in the design of heat exchanger network.Finally,the theoretical maximum heat exchange recovery network was obtained based on the pinch design principle.Compared with the initial process,in the final energy-saving plan,cold utilities reduced from 96.69 MW to 70.98 MW,saving energy by 26.59%,and heat utilities reduced from 55.41 MW to 29.71 MW,saving energy by 46.38%.Good energy-saving results were achieved.

关 键 词：异丙苯法生产苯酚丙酮 节能改造 换热网络设计 夹点技术 

分 类 号：TQ0[化学工程]