活性炭粉体燃爆特性实验研究
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摘要
为研究活性炭粉的燃爆危险性,以200目过筛粉体为研究对象,对活性炭粉体的燃爆参数以及热稳定性进行研究。利用固体自燃温度测试装置对活性炭的自燃温度进行测试。应用热质联用设备对活性炭粉加热过程中的质量和能量变化进行分析,并对受热产生的气体进行跟踪,推断气体组成。利用20 L球形爆炸装置对活性炭粉的最大爆炸压力以及最优爆炸浓度进行测定。实验结果显示:活性炭自燃温度为335.4℃,属于二级自燃物质;活性炭受热过程中可能会产生甲烷、一氧化碳等可燃性气体,增大其燃爆危险性;活性炭粉最大爆炸压力为0.56 MPa,最优爆炸质量浓度在500 g/m3附近。
The 200 mesh sieve powder was taking as research object, and the ignition parameters and thermal stability of activated carbon powder were studied to research its combustion and explosion risk. The spontaneous combustion temperature was tested by tested device of spontaneous combustion temperature for solid.The quality and energy changes of the activated carbon powder during the heating were analyzed by using the thermo-mass combined equipment, and the gas generated by the heat was tracked and identified. The maximum explosion pressure and the optimum explosion concentration were tested by 20 L ball explosion test device.Results showed that, the spontaneous combustion temperature is335.4 ℃ and the active Carbon is second level spontaneous combustible substance. The heating of activated Carbon leads to the release of Methane and CO and etc, which will increase the combustion and explosion risk. The maximum explosion pressure is 0.56 MPa, and the optimum explosion concentration is about 500 g/m3.
The 200 mesh sieve powder was taking as research object, and the ignition parameters and thermal stability of activated carbon powder were studied to research its combustion and explosion risk. The spontaneous combustion temperature was tested by tested device of spontaneous combustion temperature for solid.The quality and energy changes of the activated carbon powder during the heating were analyzed by using the thermo-mass combined equipment, and the gas generated by the heat was tracked and identified. The maximum explosion pressure and the optimum explosion concentration were tested by 20 L ball explosion test device.Results showed that, the spontaneous combustion temperature is335.4 ℃ and the active Carbon is second level spontaneous combustible substance. The heating of activated Carbon leads to the release of Methane and CO and etc, which will increase the combustion and explosion risk. The maximum explosion pressure is 0.56 MPa, and the optimum explosion concentration is about 500 g/m3.
引文
[1]沈曾民,张文辉,张学军.活性炭材料的制备与应用[M].北京:化学工业出版社,2006.
[2]王学锋.活性炭的自燃危险性及其安全运输[J].上海海运学院学报,1989,(4):41-47
[3]孙康,蒋剑春,戴伟娣,等.木质活性炭自燃性质及其影响因素研究[J].生物质化学工程,2010,44(1):9-13.
[4]吴明铂,邱介山,郑经堂.石油基碳质材料的制备及应用[M].北京:中国石化出版社,2010.
[5]闵恩泽,吴巍.绿色化学与化工[M].北京:化学工业出版社,2000.
[6]赵江平,王振成.热爆炸理论在粉尘爆炸机理研究中的应用[J].中国安全科学学报,2004,14(5):80-83.
[7]张金锋,李艳丽,刘鑫,等.不同条件下6-APA粉体爆炸最小点火能测试研究[J].中国安全生产科学技术,2015,11(10):45-46.
[8]刘函如.不同氧化程度的活性炭自燃点变化规律研究[J].消防科学与技术,2013,32(4):367-369
[9] HARDMAN,J S STREEP PJ, TWAMLEY C S.Studies of spontaneous combustion in beds of activated carbon[J].Fuel,1980,59(3):151-155.
[10] Hardman,J S.LAWN C J. Further studies of the spontaneous ignition behaviour of activated carbon[J].Fuel,1983,62(6):632-638.
[11]张宏哲,王宁,王亚琴,等.活化温度对活性炭自燃危险性的影响[J].化工学报,2012,63(11):3731-3734.
[12] CAMERON A,MACDOWALL J D.The self heating of commercial powdered activated carbons[J].Journal of Chemical Technology and Biotechnology, 2010,22(9):1007-1016.
[13]黄开辉.催化原理[M].北京:科学出版社,1983.
[14]徐帆,蒋建春,孙康,等.基于活化能指标活性炭自燃倾向性研究[J].煤炭转化,2013,36(3):84-85.
[15]张金锋,刘海鑫,刘鑫,等. 7-氨基头孢烷酸粉尘爆炸特性实验研究[J].河北科技大学学报,2014,35(2):210-212.
[16]肖旸,马砺,王振平,等.采用热重分析法研究煤自燃过程的特征温度[J].煤炭科学技术,2007,35(5):74-75.
[17]徐凡.木质活性炭自燃特性和机制研究[D].北京:中国林业科学研究院,2012.
[18]杨豪,王培植,万祥云.我国气体与粉尘爆炸事故现状及影响因素分析[J].安全与环境工程,2008,15(1):97-99.
[2]王学锋.活性炭的自燃危险性及其安全运输[J].上海海运学院学报,1989,(4):41-47
[3]孙康,蒋剑春,戴伟娣,等.木质活性炭自燃性质及其影响因素研究[J].生物质化学工程,2010,44(1):9-13.
[4]吴明铂,邱介山,郑经堂.石油基碳质材料的制备及应用[M].北京:中国石化出版社,2010.
[5]闵恩泽,吴巍.绿色化学与化工[M].北京:化学工业出版社,2000.
[6]赵江平,王振成.热爆炸理论在粉尘爆炸机理研究中的应用[J].中国安全科学学报,2004,14(5):80-83.
[7]张金锋,李艳丽,刘鑫,等.不同条件下6-APA粉体爆炸最小点火能测试研究[J].中国安全生产科学技术,2015,11(10):45-46.
[8]刘函如.不同氧化程度的活性炭自燃点变化规律研究[J].消防科学与技术,2013,32(4):367-369
[9] HARDMAN,J S STREEP PJ, TWAMLEY C S.Studies of spontaneous combustion in beds of activated carbon[J].Fuel,1980,59(3):151-155.
[10] Hardman,J S.LAWN C J. Further studies of the spontaneous ignition behaviour of activated carbon[J].Fuel,1983,62(6):632-638.
[11]张宏哲,王宁,王亚琴,等.活化温度对活性炭自燃危险性的影响[J].化工学报,2012,63(11):3731-3734.
[12] CAMERON A,MACDOWALL J D.The self heating of commercial powdered activated carbons[J].Journal of Chemical Technology and Biotechnology, 2010,22(9):1007-1016.
[13]黄开辉.催化原理[M].北京:科学出版社,1983.
[14]徐帆,蒋建春,孙康,等.基于活化能指标活性炭自燃倾向性研究[J].煤炭转化,2013,36(3):84-85.
[15]张金锋,刘海鑫,刘鑫,等. 7-氨基头孢烷酸粉尘爆炸特性实验研究[J].河北科技大学学报,2014,35(2):210-212.
[16]肖旸,马砺,王振平,等.采用热重分析法研究煤自燃过程的特征温度[J].煤炭科学技术,2007,35(5):74-75.
[17]徐凡.木质活性炭自燃特性和机制研究[D].北京:中国林业科学研究院,2012.
[18]杨豪,王培植,万祥云.我国气体与粉尘爆炸事故现状及影响因素分析[J].安全与环境工程,2008,15(1):97-99.