程振民
1、化学工程科学:研究多相反应工程分支中的(1)多相催化反应器;(2)生物化学反应器。 2、分子科学:(1)研究分子反应工程分支,通过对反应机理和催化剂的设计,探索以绿色化学和一步法为特点生产目标产物的催化剂原理。(2)采用分子模拟手段进行多孔材料内部的分子传递与反应过程研究,并对多孔材料的内部孔道结构结构进行模型化分析。 3、材料科学:研究多孔材料例如泡沫陶瓷、多孔玻璃等用于催化剂载体和过滤材料的加工工艺与应用方法。
个性化签名
- 姓名:程振民
- 目前身份:
- 担任导师情况:
- 学位:
-
学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
- 职称:-
-
学科领域:
化学工程基础学科
- 研究兴趣:1、化学工程科学:研究多相反应工程分支中的(1)多相催化反应器;(2)生物化学反应器。 2、分子科学:(1)研究分子反应工程分支,通过对反应机理和催化剂的设计,探索以绿色化学和一步法为特点生产目标产物的催化剂原理。(2)采用分子模拟手段进行多孔材料内部的分子传递与反应过程研究,并对多孔材料的内部孔道结构结构进行模型化分析。 3、材料科学:研究多孔材料例如泡沫陶瓷、多孔玻璃等用于催化剂载体和过滤材料的加工工艺与应用方法。
程振民教授,男,1967年出生。1993年毕业于华东理工大学,获博士学位;1996年起任副教授;1999年起任教授;2002年起任博士生导师。曾留学法国和澳大利亚。长期从事多相反应器基础理论研究,对流动与反应之间的规律,以及参数与模型化工作有较深入研究,发明了连续相变的节能型反应器。目前已发表论文72篇,其中国外发表19篇,SCI收录21篇、EI收录31篇,获得3项发明专利权。担任研究生学位课《化学反应工程分析》、博士生学术讲座《分子反应工程导论》、本科生专业选修课《化学反应器理论与设计》的任课教师。兼任教育部科技发展中心论文推荐评审专家、《华东理工大学学报(自然科学版)》编委、《化学反应工程与工艺》编委。1997、2000年两次获得上海市青年优秀科技论文奖,2004年获上海市化学化工学会“庄长恭”提名奖,并入选教育部“新世纪优秀人才”培养计划。
主要研究领域: 1、化学工程科学:研究多相反应工程分支中的(1)多相催化反应器:主要进行石油炼制、石油化工、精细化工产品生产中的反应器开发、设计和理论研究;(2)生物化学反应器:研究农业资源开发等领域中的酶催化及反应器设计的原理和方法。 2、分子科学:(1)研究分子反应工程分支,通过对反应机理和催化剂的设计,探索以绿色化学和一步法为特点生产目标产物的催化剂原理。(2)采用分子模拟手段进行多孔材料内部的分子传递与反应过程研究,并对多孔材料的内部孔道结构结构进行模型化分析。 3、材料科学:研究多孔材料例如泡沫陶瓷、多孔玻璃等用于催化剂载体和过滤材料的加工工艺与应用方法。
-
主页访问
2517
-
关注数
0
-
成果阅读
1729
-
成果数
20
程振民, 张玉明
石油学报,2003,19,(2)50~56,-0001,():
-1年11月30日
裂解炉炉管内壁的蒸汽-空气烧焦操作是一个反应温度和浓度沿空司变化的动态过程。此过程可以用一组非线性双曲型偏微分方程描述。为了便于求解及积分的收敛,采用迎风差分格式计算。在烧焦过程模拟中,根据裂解炉炉管高温成焦的特点,采用了沿炉管不变的烧焦反应动力学参数和反应热,模拟计算20h内裂解炉炉管不同时刻的焦层厚度、气固相温度、氧气和水蒸气分压沿炉管的变化,计算结果与工业测量结果相符合,为开发先进的裂解炉在线烧焦技术提供了更加可靠的基础。
乙烯裂解炉, 烧焦, 数学模型, 动态模拟
-
101浏览
-
0点赞
-
0收藏
-
0分享
-
206下载
-
0评论
-
引用
程振民, 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 efficiency 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
-
71浏览
-
0点赞
-
0收藏
-
0分享
-
105下载
-
0评论
-
引用
程振民, Y. X. Li, Z. M. Cheng, L. H. Liu and W. K. Yuan*
Chemical Engineering Science 54(1999)1571-1576,-0001,():
-1年11月30日
The paper presents theoretical analysis and experimental results of dilute SO2 oxidation over activated carbon coupled with partial liquid phase evaporation. A dynamic model has been first developed for this combination of reaction with vaporization of liquid in the packed bed. The model reveals the interactions among the exothermic reaction, endothermic vaporization and partial internal wetting of activated carbon pellets. Reliability of the model is verified by the experiments. Secondly, the effects of the two different operation modes and the states of the wetted catalysts on SO2 oxidation are compared. The results have demonstrated that this method has an increased SO2 removal efficiency and a higher sulfuric acid concentration.
sulfur dioxide, activated carbon, liquid vaporization, partial wetting, multifunctionai reactor.,
-
56浏览
-
0点赞
-
0收藏
-
0分享
-
62下载
-
0评论
-
引用
【期刊论文】Correlations for dynamic liquid holdup under pulsing flow in a trickle-bed reactor
程振民
,-0001,():
-1年11月30日
-
87浏览
-
0点赞
-
0收藏
-
0分享
-
134下载
-
0评论
-
引用
【期刊论文】Correlations for dynamic liquid holdup under pulsing flow in a trickle-bed reactor
程振民, Q. Xiao, A.M. Anter, Z.M. Cheng*, W.K. Yuan
Chemical Engineering Journal 78(2000)125-129,-0001,():
-1年11月30日
Based on theoretical analysis and experimental results, a new attempt has been made to characterize the dynamics of the fluid flowing under conditions of pulsing flow in a trickle-bed reactor (TBR). Two kinds of correlation are proposed for the dynamic liquid holdup under pulsing flow, which can predict the dynamic liquid holdup for a given packing type and given operating conditions.
Dynamic liquid holdup, Pulsing flow, Trickle-bed reactors
-
95浏览
-
0点赞
-
0收藏
-
0分享
-
380下载
-
0评论
-
引用
程振民, Zhi-Ming Zhou, Zhen-Min Cheng*, Zhuo Li, Wei-KangYuan
Chemical Engineering Science 59(2004)4305-4311,-0001,():
-1年11月30日
The effect of partial internal wetting of catalyst pellets on apparent reaction kinetics at elevated temperatures and pressures is investigated experimentally and by modeling for benzene hydrogenation. A new method that combines adsorption and chemical reaction is introduced to study the kinetics influenced by capillary condensation ofreagents at steady-state conditions. It is shown that the extent ofliquid filling in the pellet interior has a critical effect on the global kinetics, and the current state of the catalyst depends on the history. Under certain conditions two steady states ofthe effectiveness factor exist. Moreover, either a decrease in temperature or increase in total pressure can increase the effectiveness factor. The model exhibits good agreement with experimental results.
Adsorption, Capillary condensation, Diffusion, Partial internal wetting, Effectiveness factor, odeling, Benzene hydrogenation
-
133浏览
-
0点赞
-
0收藏
-
0分享
-
72下载
-
0评论
-
引用
【期刊论文】Initial estimation of heat transfer and kinetic parameters of a wall-cooled fixed-bed reactor
程振民, Zhen-Min Cheng and Wei-Kang Yuan*
Computers chem, Engng, 21(5)511-519, 1997,-0001,():
-1年11月30日
A numerical method is developed for the initial guesses of heat transfer and kinetic parameters in a wall-cooled fixed-bed reactor accompanied with side-stream analysis in both the axial and radial directions. The differential method is found to be the only way to decouple the heat and mass transport equations, and thus enables the estimation of the heat transfer and kinetic parameters by separate steps. Compared with simultaneous estimation by the integral methods, the differential method possesses a unique advantage arising from the separate estimation of the parameters, because the pararnetric correlation can be reduced since the parameter number in the separate estimating process is less than that in the integral process. Numerical analysis and experimental studies reveal that the most appropriate method for presenting the axial derivative is by the Pade approximation, and that for the radial derivatives is by the orthogonal collocation with one point.
Fixed-bed reactor, Distributed parameter system, Pade approximation, Differential method, Initial parameter estimation
-
241浏览
-
0点赞
-
0收藏
-
0分享
-
34下载
-
0评论
-
引用
程振民, Zhen-Min Cheng, Wei-Kang Yuan*
Chemical Engineering Science 57(2002)3407-3413,-0001,():
-1年11月30日
Reactor performance of a trickle-bed reactor (TBR) concurrently under gas-liquid downward flow and that of a flooded-bed reactor (FBR) concurrently under gas-liquid upward flow was experimentally investigated under an elevated temperature and pressure (150℃ and 1.0MPa) for benzene ydrogenation. It was shown that the different hydrodynamics of TBR and FBR could result in quite different reactor behaviors, as typically observed from the temperature profiles along the reactor. The reason for this is because the present reaction is controlled by the supply of hydrogen in the liquid phase, thus external partial wetting of the catalyst pellets could increase the reaction rate. Moreover, the pronounced vapor pressure of benzene under the prescribed temperature would make the reaction remarkable over the non-wetted catalysts. Operation in the FBR is superior to the TBR, considering the operational safety. However, TBR should be considered when the catalyst partial wetting is negligible under liquid flow rates higher than 0.58 cm/s as shown in this work.
Trickle-bed reactor, Flooded-bed reactor, Partial wetting, Benzene hydrogenation, Hydrodynamics
-
86浏览
-
0点赞
-
0收藏
-
0分享
-
65下载
-
0评论
-
引用
【期刊论文】Hydrodynamic behavior of a trickle bed reactor under "forceda" pulsing flow
程振民, Q. Xiao, Z.M. Cheng, Z.X. Jiang, A.M. Anter, W.K. Yuan*
Chemical Engineering Science 56(2001)1189-1195,-0001,():
-1年11月30日
The hydrodynamic properties in a trickle bed reactor under forced pulsing flow are studied. It has been demonstrated by the experiments that the axial and radial liquid distributions become more uniform than those of the natural pulsing fkow regime. The thickness of the liquid film over the particles is sharply thinned by the induced liquid flow. Eects of the operating conditions on liquid holdup are studied in detail. The frequency of the forced pulsing flow is found to be the most significant parameter affecting the liquid holdup.
Trickle bed reactor, Hydrodynamic properties, Forced pulsing flow, Liquid holdup distribution
-
61浏览
-
0点赞
-
0收藏
-
0分享
-
59下载
-
0评论
-
引用
【期刊论文】Estimating Radial Velocity of Fixed Beds with Low Tube-to-Particle Diameter Ratios
程振民, Zhen-Min Cheng and Wei-Kang Yuan
AIChE Journal May 1997 Vol. 43, No.5,-0001,():
-1年11月30日
The Ergun equation based on the effective spherical diameter is universally valid for various shapes of granular packings. It, however, was derived from the assumption of infinite tube-to-particle diameter ratio without considering the wall effect. Although some improvements were made by Mehta and Hawley (1969) to correct this, the application of the Ergun equation is still restricted to cylindrical columns with a packing porosity of less than 0.5. To modify, the Ergun equation to noncylindrical flow space with or with-out a wall, it was substituted into the empty tube pressure drop equation by introducing an effective tube diameter so that the pressure drop can be predicted just from the free flow space and the wetted area involved. This treatment offers the basis for a new method in velocity distribution prediction.
-
71浏览
-
0点赞
-
0收藏
-
0分享
-
43下载
-
0评论
-
引用