基于木质素磺酸钙的湿式除尘系统氢气爆炸事故控制措施研究
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摘要
为了减少湿式除尘系统发生氢气爆炸事故的可能性,提出通过抑制湿式除尘系统中铝粉与水反应的方法来从本质上加以控制。选取木质素磺酸钙为抑制剂,利用研发的金属粉与水反应产生氢气测试仪进行氢气抑制实验,得出不同浓度木质素磺酸钙溶液随时间变化的抑氢曲线,表明木质素磺酸钙能较好地抑制铝粉和水反应产生氢气。使用扫描电子显微镜(Scanning Electron Microscope,SEM)和傅里叶变换红外光谱法(Fourier Transform Infrared,FTIR)对铝粉与木质素磺酸钙溶液反应后的产物进行表征,研究木质素磺酸钙的抑制机理。研究结果表明:可以将木质素磺酸钙应用到铝制品抛光打磨场所的湿式除尘系统中,从而降低氢气爆炸事故发生的可能性。
In order to reduce the possibility of hydrogen explosion accident,it was proposed to control essentially through inhibiting the reaction of aluminium powder and water in the wet dust removal system. The calcium lignosulfonate was selected as the inhibitor,and the experiments of hydrogen inhibition were carried out by using the self-developed tester of hydrogen generation by the reaction of metal powder and water. The curves of hydrogen inhibition by the calcium lignosulfonate solution with different concentrations against time were obtained,which showed that the calcium lignosulfonate could inhibit the hydrogen generated by the reaction of aluminium powder and water well. The products after the reaction of aluminium powder and calcium lignosulfonate solution were characterized by using the scanning electron microscopy( SEM) and Fourier transform infrared( FTIR) methods,and the inhibition mechanism of calcium lignosulfonate was studied. It was proved that the calcium lignosulfonate can be used in the wet dust removal system at the polishing and grinding places of aluminium product,so as to reduce the occurrence of hydrogen explosion accident.
In order to reduce the possibility of hydrogen explosion accident,it was proposed to control essentially through inhibiting the reaction of aluminium powder and water in the wet dust removal system. The calcium lignosulfonate was selected as the inhibitor,and the experiments of hydrogen inhibition were carried out by using the self-developed tester of hydrogen generation by the reaction of metal powder and water. The curves of hydrogen inhibition by the calcium lignosulfonate solution with different concentrations against time were obtained,which showed that the calcium lignosulfonate could inhibit the hydrogen generated by the reaction of aluminium powder and water well. The products after the reaction of aluminium powder and calcium lignosulfonate solution were characterized by using the scanning electron microscopy( SEM) and Fourier transform infrared( FTIR) methods,and the inhibition mechanism of calcium lignosulfonate was studied. It was proved that the calcium lignosulfonate can be used in the wet dust removal system at the polishing and grinding places of aluminium product,so as to reduce the occurrence of hydrogen explosion accident.
引文
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[2]DENG Zhenyan,TANG Yebin,ZHU Lili,et al.Effect of different modification agents on hydrogen-generation by the reaction of Al with water[J].International Journal of Hydrogen Energy,2010,35(18):9561-9568.
[3]MYERS TJ.Reducing aluminum dust explosion hazards:Case study of dust inerting in an aluminum buffing operation[J].Journal of Hazardous Materials,2008,159(1):72-80.
[4]RAZAVI-TOUSI SS,SZPUNAR JA.Effect of addition of water-soluble salts on the hydrogen generation of aluminum in reaction with hot water[J].Journal of Alloys and Compounds,2016,679:364-374.
[5]CHANG Ying,LIU Bei,WANG Huihu,et al.Effects of preparation paramenters and alloy elements on the hydrogen generation performance of aluminum alloy-0℃pure water reaction[J].Rare Metal Materials and Engineering,2017,46(9):2428-2432.
[6]WANG Yantong,XU Kaili,WANG Ben,et al.Hydrogen inhibition in a wet aluminum dust collection system using dichromate solution[J].RSC Advances 2017,7(76):47867-47876.
[7]WANG Y,XU K,LI L.Inhibition of the reaction between aluminum dust and water based on the HIM[J].RSC Advances 2017,7(53):33327-33334.
[8]WANG Yantong,XU Kaili,WANG Beibei,et al.Hydrogen inhibition by using Cr(NO3)3·9H2O in the wet dust removal system for the treatment of aluminum dust.International Journal of Hydrogen Energy 2018,43(4):2514-2523.
[9]易聪华,邱学青,杨东杰,等.改性木质素磺酸盐GCL2-D1的缓蚀机理[J].化工学报,2009,60(4):959-964.YI Conghua,QIU Xueqing,YANG Dongjie,et al.Corrosion inhibition mechanism of modified lignosulfonate GCL2-D1[J].CIESCJournal,2009,60(4):959-964.
[10]ABU-DALO MA,AI-RAWASHDEH NAF,AABBNEH A.Evaluating the performance of sulfonated Kraft lignin agent as corrosion inhibitor for iron-based materials in water distribution systems[J].Desalination,2013,313(7):105-114.
[11]WANG Yishan,ZUO Yu,ZHAO Xuhui,et al.The adsorption and inhibition effect of calcium lignosulfonate on Q235 carbon steel in simulated concrete pore solution[J].Applied Surface Science,2016,379:98-110.
[12]PECH-CANUL M.A.,BARTOLO-PREZ P.Inhibition effects of N-phosphono-methyl-glycine/Zn 2+mixtures on corrosion of steel in neutral chloride solutions[J].Surface&Coatings Technology,2003,184(2):133-140.
[13]NADA ABD-ALLA M.A.,EI-SAKHAWY M,KAMEL SAMIRM.Infra-red spectroscopic study of lignins[J].Polymer Degradation and Stability,1998,60(2):247-251.
[14]王万林,王海滨,霍冀川,等.改性木质素磺酸钙高效减水剂的制备和应用[J].中国造纸学报,2011,26(3):44-48.WANG Wanglin,WANG Haibin,HUO Jichuan,et al.Preparation of superplasticizer through copolymerization of oxidized calcium lignosulfonate with acrylamide and its application[J].Transaction of China Pulp and Paper,2011,26(3):44-48.
[15]OUYANG Xinping,QIU Xueqing,LOU Hongming,et al.Corrosion and scale inhibition properties of sodium lignosulfonate and its potential application in recirculating cooling water system[J].Industial&Engineering Chemistry Research,2006,45(16):5716-5721.
[16]易聪华.木质磺酸盐的腐蚀性能及作用机理研究[D].广州:华南理工大学,2005.
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