81 2018年6月
环境与能源
过程工程学报
The Chinese Jourmal of Process Engineering
Vol.18 No.3 June2018
DOl: 10.12034/j.issn.1009-606X.217333
液膜反应器中异丙醇脱氢性能及反应动力学
李石琨，
许闽2”
蔡军2，
岳献芳！，
淮秀兰2
(1.北京科技大学能源与环境工程学院，北京1000832.中国科学院工程热物理研究所，北京100190)
要：研究了反应物进料速度、催化剂用量和反应温度对以非晶态合金雷尼镍为催化剂的液膜多相反应模式下异丙醇脱氢反摘
Langmuir-Hinshelwood反应动力学表达式计算结果与实验结果吻合良好. 关键词：化学热泵：多相脱氢：异丙醇；液膜；动力学
中图分类号：TF821
文献标识码：A
文章编号：1009-606X(2018)03-0652-05
DehydrogenationPerformanceandReactionKineticsofIsopropanolinLiquidFilmReactor
Shikun LI',Min XU",Jun CAI,XianfangYUE",Xiulan HUAI
(1. School of Energy and Emvironmental Engineering, University of Science and Technology Beijing, Beijing I00083, China;
2. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China)
eeeaaeeeaa isopropanol in a liquid film reactor with the amorphous alloy Raney nickel as catalyst were studied. The reaction kinetics was researched. The results showed that the effect of temperature was the most significant factor. Compared with the liquid phase dehydrogenation of the stirred tank, this reaction mode effectively improved the hydrogen production rate. The kinetic expression of LangmuirHinshelwood was obtained which agreed well with the experimental results.
Key words: chemical heat pump; multiphase dehydrogenation; isopropanol; liquid film; dynamics
1
前言
随着对能源效率的重视和余热回收技术的发展，工
业低温余热有效利用成为研究重点，化学热泵是提升低温热能品位的有效方法之一，异丙醇/丙酮/氢气化学热泵（Isopropanol-Acetone-Hydrogen
Chemical
Heat
Pump，IAH-CHP)(图1)成为了研究热点(2-6)，包括 353~393K的吸热脱氢反应(IAH)和最高放热温度为473 K的氢化反应(CHP).异丙醇的脱氢反应式为
(CHs)2CHOH→(CH)2CO+Hz, △/H=100.4 kJ/mol.
(1)
脱氢反应吸收工业余热产生丙酮和氢气，将热能转换为化学能，反应物和产物进入精馏塔分离，丙酮和氢气进入放热反应器发生氢化反应：
(CHs)2CO+H2→(CHs)CHOH,
H55 kJ/mol.
Condense Te Qc
LComp
X
X
Distllation
Fig.1
Heate
(2)
*High temperature Te Cn
Low temperature waste Heat T, O
S Reboile
cothermie reacto
图1
异丙醇-丙酮-氢化学热泵示意图
Schematic diagram of isopropanolacetonehydrogen
chemical heat pump
收搞日期：201709-12，修回日期：2017-1031
基金项目：国家重点研发计划资助项目(编号：2016YFB0601200)：国家自然科学基金资助项目(编号：51476173：51576194)
作者简介：李石琨(1993-)，男，河南省平顶山市人，硕士研究生，动力工程专业，E-mail:m13071781673@163.comi通讯联系人，许闽，
E-mail: xumin@iet.cn;献芳, E-mail: yuexf@me.ustb.edu.cn
引用格式：李石理，许阅，暴军，等，液膜反应器中异丙醇脱氢性能及反应动力学，过程工程学报，2018,18(3)：652-656.
LiSK,Xu M, CaiJ,et al.Dehydrogenation Performance and Reaction Kinetics of Isopropanol in LiquidFilm Reactor (in Chinese) Chin. J. Process Eng-, 2018, 18(3): 652656, DOI: 10.12034/j-issn.1009-606X.217333
万方数据