夹点技术优化改造蜡油加氢裂化装置换热网络及有效能分析

doi:10.16085/j.issn.1000-6613.2017.04.011

化工进展 ›› 2017, Vol. 36 ›› Issue (04): 1231-1239.DOI: 10.16085/j.issn.1000-6613.2017.04.011

夹点技术优化改造蜡油加氢裂化装置换热网络及有效能分析

李中华¹, 肖武¹, 贺高红¹, 杜艳泽², 方向晨², 罗立³

1 大连理工大学精细化工国家重点实验室, 膜科学与技术研究开发中心, 辽宁大连 116024;
2 中国石化抚顺石油化工研究院, 辽宁抚顺 113001;
3 北京沃利帕森工程技术有限公司, 北京 100015

收稿日期:2016-10-08 修回日期:2016-11-03 出版日期:2017-04-05 发布日期:2017-04-05
通讯作者: 肖武,博士,副教授,从事化学工程、化工系统工程及过程强化等方面研究。E-mail:wuxiao@dlut.edu.cn。
作者简介:李中华(1991-),女,硕士研究生。
基金资助:
中国石油化工股份有限公司（X514001）、国家留学基金（201506060258）、长江学者奖励计划（T2012049）、辽宁省高等学校创新团队（LT2015007）及中央高校基本科研业务费专项基金（DUT16TD19）项目。

Optimization and reformation of heat exchanger network for wax oil hydrocracking unit by pinch technology and exergy analysis

LI Zhonghua¹, XIAO Wu¹, HE Gaohong¹, DU Yanze², FANG Xiangchen², LUO Li³

1 State Key Laboratory of Fine Chemicals R & D Center of Membrane Science and Technology, Dalian University of Technology, Dalian 116024, Liaoning, China;
2 Fushun Research Institute of Petroleum and Petrochemicals, Fushun 113001, Liaoning, China;
3 Beijing Worley Parsons Engineering Technology Co., Ltd., Beijing 100015, China

Received:2016-10-08 Revised:2016-11-03 Online:2017-04-05 Published:2017-04-05

摘要/Abstract

摘要： 针对某炼厂150万吨蜡油加氢裂化装置，采用单段串联+冷高分+常压塔+减压塔+轻烃吸收塔工艺流程，基于生产数据利用Aspen Plus软件对装置中反应部分和分离部分的各个单元模块进行模拟，通过参数的调整，使得模拟结果与标定数据达到很好的吻合，进而获得各个流股的热力学参数。结合夹点技术对其换热网络进行能效分析，进而找到该工艺流程中的用能“瓶颈”，在不改变装置主要设备的前提下，对现有换热网络调优并模拟计算得到节能方案，同时利用有效能分析方法对改造前后换热网络进行用能评价。调优后，热公用工程用量为25709kW，相比原工艺流程节约了42.20%，冷公用工程用量为29863kW，相比原工艺流程节约了38.50%；总体来看改造方案相比原工艺流程节约了17.19kgEO/t的能耗。换热网络的总（火用）损失也由原来的13530kW降低到8477kW，总（火用）损失降低了37.35%。

关键词: 加氢裂化, 有效能分析, 换热网络, 夹点技术

Abstract: A wax oil hydrocracking process unit with annual capacity of 1.5 million tons in a refinery was simulated using Aspen Plus. The unit included single segment series,cold high pressure column,and light hydrocarbon absorber vacuum tower. Based on the basic production data of wax oil hydrocracking units,Aspen Plus software was used to establish a strict mathematical model for each module in the process. By adjusting the model parameters,the simulation results and calibration data were in a good agreement. Then thermodynamic parameters of different streams were obtained from the simulation. Based on the simulation,the "bottleneck" of the heat exchanger network for the process was identified using pinch analysis.,With the premise of not changing the main equipment of the system,the tuning and simulation of the existing heat exchanger network were achieved for the energy-saving program. The effective energy analysis method was also used to evaluate the heat exchange network before and after the reformation. After the tuning,the amount of hot utility was the 25709kW that is 42.2% less than original process;the amount of cold utility was 29863kW that was 38.5% less than the original process. Overall,the transformation program would save energy 17.19kgEO/t total exergy loss of the heat exchanger network would be reduced to 8477kW from 13530kW with the total exergy loss decreased by 37.35%.

Key words: hydrocracking, exergy analysis, heat exchanger network, pinch technology

中图分类号:

TE624.41

李中华, 肖武, 贺高红, 杜艳泽, 方向晨, 罗立. 夹点技术优化改造蜡油加氢裂化装置换热网络及有效能分析[J]. 化工进展, 2017, 36(04): 1231-1239.

LI Zhonghua, XIAO Wu, HE Gaohong, DU Yanze, FANG Xiangchen, LUO Li. Optimization and reformation of heat exchanger network for wax oil hydrocracking unit by pinch technology and exergy analysis[J]. Chemical Industry and Engineering Progress, 2017, 36(04): 1231-1239.

参考文献

[1] 史昕,邹劲松,厉荣. 炼油发展趋势对加氢能力及加氢技术的影响[J]. 当代石油石化,2014,22(9):1-5. SHI X,ZOU J S,LI R. The Influence of refining development trends upon hydrogenation capacity and hydrogenation technology[J]. Petroleum & Petrochemical Today,2014,22(9):1-5.
[2] PANG W W,KURAMAE M,KINOSHITA Y,et al. Plugging problems observed in severe hydrocracking of vacuum residue[J]. Fuel,2009,88(4):663-669.
[3] FAHIM M A,AL-SAHHAF T A,ELKILANI A,et al. Fundamentals of petroleum refining[M]. Amsterdam:Elsevier,2009.
[4] 李中华,肖武,阮雪华,等. 加氢裂化反应动力学建模研究进展[J]. 化工进展,2016,35(4):988-994. LI Z H,XIAO W,RUAN X H,et al. Research progress of hydrocracking reaction kinetic model[J]. Chemical Industry and Engineering Progress,2016,35(4):988-994.
[5] 方向晨,张英. 加氢裂化装置用能分析及节能途径探讨[J]. 化工进展,2008,27(1):151-156. FANG X C,ZHANG Y. Energy utilization analysis and energy-saving measures of hydrocracking units[J]. Chemical Industry and Engineering Progress,2008,27(1):151-156.
[6] 叶剑云. 加氢裂化装置工艺用能分析与优化[D]. 广州:华南理工大学,2010. YE J Y. Energy-use analysis and optimization of hydrocracking processes[D]. Guangzhou:South China University of Technology,2010.
[7] 白滨. 基于全流程模拟的加氢处理装置流程技改与操作调优[D]. 大连:大连理工大学,2015. BAI B. Technical innovation and operation optimization of hydrotreating unit based on whole process simulation[D]. Dalian:Dalian University of Technology,2015.
[8] 姚春峰. 金陵石化Ⅱ套加氢裂化装置流程模拟应用[J]. 中外能源,2014,19(2):74-78. YAO C F. Application of process simulation technology in Sinopec Jinling company's No.2 hydrocracking unit[J]. Sino-Global Energy,2014,19(2):74-78.
[9] 马晓明. 连续重整装置模拟与节能研究[D]. 青岛:青岛科技大学,2012. MA X M. The simulation and energy-saving research of continuous catalytic reforming unit[D]. Qingdao:Qingdao University of Science and Technology,2012.
[10] 汪旭,冯霄. 基于启发式方法的弹性换热网络的合成[J]. 计算机与应用化学,2010,27(10):1349-1352. WANG X,FENG X. Synthesis of flexible heat exchanger network based on heuristic approach[J]. Computers and Applied Chemistry,2010,27(10):1349-1352.
[11] KANG H,WANG T,ZHENG H. Comparative analysis of regenerative and air-extraction multi-stage humidification-dehumidification desalination system using pinch technology[J]. Desalination,2016,385:158-166.
[12] 杨慧,李述日. 有效能分析法的应用研究进展[J]. 广东化工,2014,41(15):114-115. YANG H,LI S R. The application progress of exergy analysis[J]. Guangdong Chemical Industry,2014,41(15):114-115.
[13] TORIO H,SCHMIDT D. Development of system concepts for improving the performance of a waste heat district heating network with exergy analysis[J]. Energy & Buildings,2010,42(10):1601-1609.
[14] YE J,CHEN Q,ZHANG B. Exergy analysis and optimization for the high-pressure heat exchange network of a hydrocracking unit[J]. Petroleum Processing & Petrochemicals,2010,41(3):74-77.
[15] KANG L,LIU Y. Minimizing investment cost for multi-period heat exchanger network retrofit by matching heat transfer areas with different strategies[J]. Chinese Journal of Chemical Engineering,2015,23(7):1153-1160.
[16] SOUZA R D,KHANAM S,MOHANTY B. Synthesis of heat exchanger network considering pressure drop and layout of equipment exchanging heat[J]. Energy,2016,101:484-495.
[17] GADALLA M A. A new graphical method for Pinch Analysis applications:heat exchanger network retrofit and energy integration[J]. Energy,2015,81:159-174.

夹点技术优化改造蜡油加氢裂化装置换热网络及有效能分析

Optimization and reformation of heat exchanger network for wax oil hydrocracking unit by pinch technology and exergy analysis

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	朱添宇, 孙琳, 任超, 罗雄麟. 基于全周期持续节能的换热网络滑动窗口分析与裕量缓释优化控制[J]. 化工进展, 2023, 42(3): 1195-1205.
[2]	孔倩, 孙巾超, 葛佳琪, 张鹏, 马艳龙, 刘百军. 沉淀剂对NiW/TiO₂-ASA催化剂加氢裂化性能的影响[J]. 化工进展, 2023, 42(1): 265-271.
[3]	蒋宁, 张元毅, 范伟, 赵世超, 徐新杰, 徐英杰. 基于智能预测和机理模型的换热网络清洗决策[J]. 化工进展, 2022, 41(4): 1781-1792.
[4]	韩京京, 谭涓, 刘靖, 刘宇. 小晶粒ZSM-22的可控合成及其催化长链正构生物烷烃制航空煤油性能[J]. 化工进展, 2022, 41(4): 1916-1924.
[5]	刘洪彬, 崔国民, 周志强, 肖媛, 张冠华, 杨其国. 应用于换热网络优化的并行双层RWCE算法[J]. 化工进展, 2022, 41(10): 5247-5258.
[6]	刘阳, 吴秀章, 刘永健, 王波. 煤制天然气过程全局能量集成优化[J]. 化工进展, 2021, 40(7): 3719-3727.
[7]	徐玥, 崔国民. 基于节点配置策略的有分流换热网络优化性能探析[J]. 化工进展, 2021, 40(7): 3608-3616.
[8]	杜艳泽, 秦波, 王会刚, 郝文月, 高杭, 方向晨. 多级孔分子筛在重油加氢裂化催化剂的应用进展[J]. 化工进展, 2021, 40(4): 1859-1867.
[9]	蒋宁, 赵世超, 谢小东, 范伟, 徐新杰, 徐英杰. 利用余热回收多能互补技术的原油蒸馏装置热集成系统的优化改造[J]. 化工进展, 2021, 40(2): 652-663.
[10]	邵缨迪, 胡建杭, 刘慧利, 蔡正达. 异丁烯提纯装置换热网络的能效分析[J]. 化工进展, 2020, 39(S2): 57-65.
[11]	羡策, 毛以朝, 龙湘云, 杨平, 杨清河. Y型分子筛应用于双环芳烃加氢裂化多产轻芳烃过程研究进展[J]. 化工进展, 2020, 39(S1): 133-140.
[12]	蒋宁, 范伟, 谢小东, 郭风元, 李恩腾, 赵世超. NSGA-Ⅱ和NSGA-Ⅲ应用于换热网络多目标优化的对比[J]. 化工进展, 2020, 39(7): 2534-2547.
[13]	刘宇, 谭涓, 刘靖, 王慧风. Pt/ZSM-35催化长链正构生物烷烃加氢裂化/异构化制航空煤油[J]. 化工进展, 2020, 39(12): 5086-5094.
[14]	孙琳, 杨明达, 罗雄麟. 基于持续节能的换热网络缓释优化[J]. 化工进展, 2020, 39(10): 3941-3948.
[15]	苏戈曼, 崔国民, 肖媛, 赵倩倩. 换热网络优化中换热单元生成频次的影响分析及策略改进[J]. 化工进展, 2020, 39(10): 3879-3891.