甲苯一段硝化产物TD24的获取

doi:10.3969/j.issn.0438-1157.2014.11.024

化工学报 ›› 2014, Vol. 65 ›› Issue (11): 4383-4391.DOI: 10.3969/j.issn.0438-1157.2014.11.024

• 催化、动力学与反应器 • 上一篇下一篇

甲苯一段硝化产物T_D24的获取

周奕杉, 陈利平, 陈网桦, 杨庭, 张彩星, 尹瑞丽

南京理工大学化工学院安全工程系, 江苏南京 210094

收稿日期:2014-03-25 修回日期:2014-08-13 出版日期:2014-11-05 发布日期:2014-11-05
通讯作者: 陈网桦
基金资助:
国家自然科学基金项目(51204099).

T_D24 determination for mono-nitration products of toluene

ZHOU Yishan, CHEN Liping, CHEN Wanghua, YANG Ting, ZHANG Caixing, YIN Ruili

Department of Safety Engineering, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received:2014-03-25 Revised:2014-08-13 Online:2014-11-05 Published:2014-11-05
Supported by:
supported by the National Natural Science Foundation of China (51204099).

摘要/Abstract

摘要： 为获取甲苯一段硝化未经碱洗产物(样品1:一硝基甲苯+少量混酸)及碱洗后的纯品产物(样品2:一硝基甲苯)在绝热条件下最大温升速率达到时间为24 h所对应的引发温度T_D24,并了解其热分解特性,首先采用差示扫描量热仪(DSC)测试了两种样品不同升温速率下的动态DSC数据,分析获得了样品的机理函数、活化能和指前因子,进而推导出两个样品的T_D24分别为(246.1±4.5)℃和(257.9±3.6)℃.然后利用绝热加速度量热仪(ARC)对此进行了实验验证,得到绝热条件下样品1和2的T_D24分别为241.5℃和256.4℃.上述结果表明,DSC推导的T_D24结果与ARC结果几乎一致.这表明根据动态DSC测试参数推导的T_D24具有一定的可靠性,可以作为工程应用的参考;就甲苯一段硝化产物而言,含酸体系的热分解危险性更高.

关键词: 安全, 稳定性, 动力学, T_D24, 一硝基甲苯, 差示扫描量热, 绝热量热

Abstract: To determine the temperature of sample 1 (toluene mono-nitration crude product: mononitrotoluene with a little mixed acid) and sample 2 (pure mononitrotoluene product, MNT) T_D24, at which the required time to reach maximum rate of temperature rise under adiabatic condition is 24 hours, and to obtain the thermal decomposition characteristics of these products, differential scanning calorimeter (DSC) and accelerating rate calorimeter (ARC) were employed to test the thermal behaviors of the two samples. By kinetic analysis for dynamic data obtained by DSC in dynamic mode, the T_D24 determined for samples 1 and 2 are (246.1±4.5)℃ and (257.9±3.6)℃, respectively. As a comparison, the values of T_D24 for sample 1 and 2, determined by ARC under adiabatic condition, are 241.5℃ and 256.4℃, respectively. Therefore, the T_D24 values derived from dynamic data are in good agreement with those by ARC, which means that the results derived from DSC are of large reliability and can be used as a reference for engineering applications. Meanwhile, a comparison for the results of sample 1 and 2 indicates that the thermal hazard of MNT with a little mixed acid is higher than that of pure one.

Key words: safety, stability, kinetics, T_D24, mononitrotoluene, differential scanning calorimetry, adiabatic calorimetry

中图分类号:

周奕杉, 陈利平, 陈网桦, 杨庭, 张彩星, 尹瑞丽. 甲苯一段硝化产物T_D24的获取[J]. 化工学报, 2014, 65(11): 4383-4391.

ZHOU Yishan, CHEN Liping, CHEN Wanghua, YANG Ting, ZHANG Caixing, YIN Ruili. T_D24 determination for mono-nitration products of toluene[J]. CIESC Journal, 2014, 65(11): 4383-4391.

参考文献 23

[1]	Zaldivar J M, Barcons C, Hernandez H, et al. Modelling and optimization of semibatch toluene mononitration with mixed acid from performance and safety viewpoints [J]. Chemical Engineering Science, 1992, 47 (9): 2517-2522
[2]	Wang Zhen (汪贞). Simulation analysis of nitration reactor of toluene to mononitrotoluene [D]. Beijing: Beijing University of Chemical Technology, 2010
[3]	Luo K M, Chang J G. The stability of toluene mononitration in reaction calorimeter reactor [J]. Journal of Loss Prevention in the Process Industries, 1998, 11 (2): 81-87
[4]	Chen C Y, Wu C W. Thermal hazard assessment and macrokinetics analysis of toluene mononitration in a batch reactor [J]. Journal of Loss Prevention in the Process Industries, 1996, 9 (5): 309-316
[5]	Wang Xiaofeng (王晓峰). Study on the process optimization and safety of toluene mononitration [D]. Nanjing: Nanjing University of Science and Technology, 2005
[6]	Chen Liping (陈利平), Chen Wanghua (陈网桦), Li Chunguang (李春光), Liu Ying (刘颖), Zhang Youping (张幼平), Peng Jinhua (彭金华). Study on the hazards of semi-batch nitration process of toluene in mixed acids [J]. China Safety Science Journal (中国安全科学学报), 2007, 17 (12): 102-106
[7]	Francis Stoessel. Thermal Safety of Chemical Processes: Risk Assessment and Process Design (化工工艺的热安全——风险评估与工艺设计) [M]. Chen Wanghua (陈网桦), Peng Jinhua (彭金华), Chen Liping (陈利平), trans. Beijing: Science Press, 2009
[8]	Liu Ronghai (刘荣海), Chen Wanghua (陈网桦), Hu Yiting (胡毅亭). Safety Principles and Assessment Techniques for Dangerous Chemicals (安全原理与危险化学品测评技术) [M]. Beijing: Chemical Industry Press, 2004
[9]	Chen L P, Chen W H, Liu Y, et al. Toluene mono-nitration in a semi-batch reactor [J]. Central European Journal of Energetic Materials, 2008, 5 (2): 37-47
[10]	Flynn J H, Wall L A. General treatment of the thermogravimetry of polymers [J]. Journal of Research of the National Bureau of Standards-A Physical and Chemistry, 1966, 70A (6): 487-523
[11]	Ozawa T. A new method of analyzing thermogravimetric data [J]. Bulletin of the Chemical Society of Japan, 1965, 38 (11): 1881-1886
[12]	Kissinger H E. Reaction kinetics in differential thermal analysis [J]. Analytical Chemistry, 1957, 29 (11): 1702-1706
[13]	Friedman H L. Kinetics of thermal degradation of char-forming plastics from thermogravimetry. Application to a phenolic plastic [J]. Journal of Polymer Science Part C: Polymer Symposia, 1964, 6 (1): 183-195
[14]	Hu Rongzu (胡荣祖), Gao Shengli (高胜利), Zhao Fengqi (赵凤起), Shi Qizhen (史启祯), Zhang Tonglai (张同来), Zhang Jianjun (张建军). Thermal Analysis Kinetics (热分析动力学) [M]. 2nd ed. Beijing: Science Press, 2008
[15]	Roduit B, Xia L, Folly P, et al. The simulation of the thermal behavior of energetic materials based on DSC and HFC signals [J]. Journal of Thermal Analysis and Calorimetry, 2008, 93 (1): 143-152
[16]	Vyazovkin S, Burnham A K, Criado J M, et al. ICTAC Kinetics Committee recommendations for performing kinetic computations on thermal analysis data [J]. Thermochimica Acta, 2011, 520 (1): 1-19
[17]	Málek J, Smr?ka V. The kinetic analysis of the crystallization processes in glasses [J]. Thermochimica Acta, 1991, 186 (1): 153-169
[18]	Málek J. The kinetic analysis of non-isothermal data [J]. Thermochimica Acta, 1992, 200: 257-269
[19]	Málek J, Criado J M. A simple method of kinetic model discrimination (Ⅰ): Analysis of differential non-isothermal data [J]. Thermochimica Acta, 1994, 236: 187-197
[20]	Townsend D I, Tou J C. Thermal hazard evaluation by an accelerating rate calorimeter [J]. Thermochimica Acta, 1980, 37 (1): 1-30
[21]	Paul W Cooper. Explosives Engineering [M]. New York: VCH, 1996
[22]	Dimoplon W. Estimating specific-heat of liquid mixtures [J]. Chemical Engineering, 1972, 79 (22): 64-66
[23]	Chen Liping (陈利平). Experiment and theoretical studies on thermal hazards of toluene nitration [D]. Nanjing: Nanjing University of Science and Technology, 2009

甲苯一段硝化产物T_D24的获取

T_D24 determination for mono-nitration products of toluene

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甲苯一段硝化产物TD24的获取

TD24 determination for mono-nitration products of toluene

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甲苯一段硝化产物T_D24的获取

T_D24 determination for mono-nitration products of toluene