戴迎春
长期从事化学反应过程及反应器的基础研究和工程技术研究,非传统的反应工程包括有机电化学和非定态操作及模型研究,纳米碳纤维制备和应用研究。
个性化签名
- 姓名:戴迎春
- 目前身份:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
化学工程基础学科
- 研究兴趣:长期从事化学反应过程及反应器的基础研究和工程技术研究,非传统的反应工程包括有机电化学和非定态操作及模型研究,纳米碳纤维制备和应用研究。
1941年1月生,教授、博士生导师,化学工程联合国家重点实验室(华东理工大学)主任。1964年毕业于华东化工学院。专业特长化学反应工程,长期从事化学反应过程及反应器的基础研究和工程技术研究,非传统的反应工程包括有机电化学和非定态操作及模型研究,纳米碳纤维制备和应用研究。研究领域涉及石油化工, 聚合反应和有机电化学过程, 并均有开发成功的工业应用. 其中丁烯氧化脱氢制丁二烯、乙苯脱氢制苯乙烯和PTA直接缩聚制聚酯等三项反应过程和反应器研究已形成国产化技术,取得显著经济效益。
获多项科技进步奖。“丁烯氧化脱氢制丁二烯工业化新技术开发” 获国家科技进步二等奖。此外,先后获得国家教委科技进步一等奖一项,二等奖二项,三等奖一项;中国石化总公司科技进步一等奖二项,三等奖一项等。专利十项, 专著一本。2003年“制备苯乙烯的装置”获上海市发明创造专利三等奖。在Chem. Engng. Sci,自然科学进展,化工学报等国内外期刊上发表论文80余篇。
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9
戴迎春, Tie-Jun Zhao, † De Chen, ‡, Ying-Chun Dai, †, Wei-Kang Yuan, *, and Anders Holmen‡
Ind. Eng. Chem. Res. 2004, 43, 4595-4601,-0001,():
-1年11月30日
A series of novel palladium catalysts supported on carbon nanofibers of various nanostructures have been prepared, characterized, and tested in gas-phase synthesis of dimethyl oxalate. Significant improvements in both activity and selectivity have been achieved over well-defined carbon nanofiber supported palladium catalysts. Carbon nanofiber produced on 20% NiFe/Al2O3 (CNF-05) supported palladium catalyst possesses the highest activity, which can be ascribed to the high surface area of the support, relatively weak metal-support interaction, and smaller metal particles. The low metal-support interaction might improve the redox properties of the catalyst, and thus the activity. The functionalization of CNF-05 in air is found to dramatically increase the conversion of methyl nitrite compared to the functionalization in HNO3.
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戴迎春, Yang-Liu Zhou, Xin-Sheng Zhang, Ying-Chun Dai, Wei-Kang Yuan∗
Chemical Engineering Science 58(2003)1021-1027,-0001,():
-1年11月30日
Electrosynthesis of glyoxylic acidby electroreduction of oxalic acidhas long been well known. However, attempts to commercialize the process have encountered problems due to rapid deactivation of the cathode. The cathode activity can be continuously restored by adding small amounts of chemical activators to the catholyte. In this paper the structural e5ect of chemical activator on electrode reaction is studied. The results show that (1) It is the cation of the chemical activator, but not the anion that a5ects the current e6ciency and the reaction selectivity. (2) The more symmetrical the cation, or the shorter the longest alkyl chain, the higher the current e6ciency and the reaction selectivity become. (3) Mechanism of the activation is discussed. Adsorption of the cations of the activator on the cathode surface protects the electrode. (4) Quantitative characterization of the activator molecule is given using some topological indices, with which the activation ability can be predicted, and screening of the proper activator is made possible.
Electrode activator, Molecular structure, Electroreduction, Oxalic acid, Glyoxylic acid
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【期刊论文】Modeling of gas-solid chemisorption in chemical heat pumps
戴迎春, Hua-Jiang Huanga, Guo-Bin Wua, Jiao Yanga, Ying-Chun Daia, ∗, Wei-Kang Yuana, Hui-Bo Lub
Separation and Purification Technology 34(2004)191-200,-0001,():
-1年11月30日
A model coupled the chemical kinetics with heat transfer was applied for simulation of the dynamic behavior of the gas-solid fixed-bed reactors used in chemical heat pumps (CHP). The kinetic parameters and the thermal parameters were identified, respectively. Good agreement was found between the simulation and the experimental data. Moreover, the sensitivity of the global advancements and the radial temperature profiles to the thermal parameters was analyzed. The thermal capacity of the reactive medium has little influence on the global advancement, while the effective thermal conductivity of the medium has an apparent effect on the global advancement. The influence of the effective thermal conductivity on the global advancement is significant until its value is larger than 15Wm−1 K−1. The contact heat transfer coefficient between reactive salt and reactor wall has less influence on the global advancements and the radial temperature profiles when its value is higher than 800Wm−2 K−1. This model can be used for optimal design of CHPs, optimization of the operation conditions, and determination of the influence of various parameters on the reactor performances, including the kinetic and thermal parameters, the operational parameters (imposed pressure and temperature), and the configuration parameters of the medium or reactor (geometry and dimensions).
Adsorption, Ammonia, Gas-solid reaction, Refrigeration, Sensitivity analysis, Strontium chloride
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戴迎春, Z. M. Cheng, A. M. Anter, G. M. Khalifa, J. S. Hu, Y. C. Dai∗, W. K. Yuan
Chemical Engineering Science 56(2001)6025-6030,-0001,():
-1年11月30日
Hydrogenation of benzene to cyclohexane was conducted in an adiabatic fixed-bed reactor under a phase transitional condition. In which process, a mixture of benzene and cyclohexane was fed into the reactor at the bottom under the liquid condition, however, the liquid phase disappeared and turned into gas phase at the reactor outlet through vaporization. It follows from this novel idea that the problems associated with reaction heat removal and low catalyst e6ciency of the liquid-filled catalyst could be solved simultaneously with emptying of the liquid from the catalyst. However, the benzene concentration in the mixture should not exceed 14% if simple phase transition is employed, since the reaction heat is seven times the liquid vaporization heat. To optimize this primitive operation, a side stream quenching operation was proposed and attempted experimentally, and it was found that the side stream quenching with double injection points could be an acceptable operating strategy.
Multiphase reactor, Simple phase transition, Complex phase transition, Volatile compounds, Benzene hydrogenation, Side stream quenching
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【期刊论文】Optimal control of batch electrochemical reactor using K-L expansion
戴迎春, X.G. Zhou, X. S. Zhang, X. Wang, Y. C. Dai, W.-K. Yuan*
Chemical Engineering Science 56(2001)1485-1490,-0001,():
-1年11月30日
A control vector parameterization approach using the Karhunen-Loeve (K-L) expansion for optimal control is presented. Optimal control proples at different initial conditions are represented bya truncated K-L expansion and the optimal control is thus transformed into a parametric optimization with the K-L coefficient (s) as the optimization variable (s). Closed-loop optimal control therefore becomes feasible because the number of optimization variables is minimized. The presented approach is demonstrated on a batch electrochemical reactor in which reduction of oxalic acid glyoxalic acid is carried out under conditions with known or unknown disturbance, or electrode deactivation. The closed-loop control with the K-L expansion outperforms the open-loop optimal control with very little computational e!ort.
Optimal control, Batch process, Discontinuous process, K-L expansion, Electrochemical reactor
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戴迎春, 阳蕉, 黄华江, 戴迎春*, 袁渭康
华东理工大学学报,2002,28(6):569~572,-0001,():
-1年11月30日
对采用新型IMPEX材料制造的化学热泵进行了实验研究,测定了不同操作条件下SrCI2-NH3吸附体系的反应速率,分析了反应推动力对反应速率的影响,测量了化学热泵的单程功率。实验表明,这种新型材料改善了床层的传热性能,同时也证实了SrCI2-NH3是较为理想的吸附体系。
化学热泵, 气固反应, 余热, 吸附
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戴迎春, 陈银生*, 张新胜, 袁渭康
电化学,2002,8(1):60~65,-0001,():
-1年11月30日
对电解氧化乙二醛合成乙醛酸过程,固定床电解槽和变电流电解效果明显优于平板型电解槽和恒电流电解效果。当阳极液中乙二醛和盐酸初始质量分数(WCHOCHO和HCI)分别等于7.0%和8.0%阴极液为始终饱和的草酸溶液和微量的添加剂时,采用平均电流密度(i)为1535A/M2的变电流方式电解,阳极电流效率(CEa)为85.3%乙醛酸选择性(RSa)为93.9%;阴极电流效率(CEc)为86.7%,乙醛酸选择性(RSc)为94.0%阳极初产品中WCHOCOCH:WCHOCHO≥40:3,克服了阳极产品中乙二醛难以除去的困难。
乙醛酸, 成对电合成, 固定床电解槽, 变电流电解, 乙二醛, 草酸
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戴迎春, 胡劲松, 程振民, A.M. Anter, 袁渭康
,-0001,():
-1年11月30日
A new hydrogenation method was introduced in an adiabatic fixed-bed reactor with gas and liquid upflow cocurrently. Three reatction regimes, i.e., liquid phase regime, mixed phase regime and gas phase regime were observed in the bed through regulating the operating conditions, Hydrogenation of benzene to cyclohexane over palladium catalyst was use as the model reaction. The effects of hydrogen flow rate, liquid flow rate, feed temperature and pressure on the flow regime were studied. For exothermic reactions, a small increase in reaction temperature can lead to a large increase in reaction rate due to Arrhenius temperature dependence of rate constana. The increased reaction rate results in more heat generation which further increases reaction temperature, this may results in reactor runaway. In this work, we propose that it is possible to obtain effective temperature control by using a fixed-bed reactor with cocurrent upflow of the reagents. The reaction heat evolved is absorbed by evaporation of the liquid phase. The experiments showed that the conversion of benzene in the reactor with this new kind of operatin could reach almost 100%, and the risk due to hot spots appearance may also be avoided.
苯, 加氢, 多相反应, 连续相变
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戴迎春, 陈银生, 张新胜*, 胡军
电化学,2000,6(1):102~107,-0001,():
-1年11月30日
本文介绍了一种用电化学法合成乙醛酸的新方法,采用DSA作阳极材料的离子交换膜电解槽和周期性间歇操作方式,研究了乙二醛和盐酸混合体系中各种工艺条件对电流效率(Cea)和乙醛酸收率(Rsa)的影响,得最佳电解条件:反应温度30~40℃,电解液流速1.4m/s,电极电流密度450A/m2,乙二醛初始浓度(wt%以下同)9.1%~16.0%,盐酸初始浓度4%~6%,在此条件下电解乙二醛,乙醛酸收率91.1%,电流效率80.0%。
电华学合成,, 乙二醛,, 乙醛酸
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