瀝青煙氣組成及其抑制研究
[Abstract]:Based on the thermogravimetric analysis and aging analysis of Liaohe 70# asphalt, Kehua 70# asphalt and Jiangyin 70# asphalt, it is concluded that the heat stability of Jiangyin 70# asphalt is the worst, and the flue gas production is the largest in the process of use, which is in accordance with the practical application. In nitrogen atmosphere, the flue gas composition of Jiangyin 70# asphalt was analyzed. There were a few single-chain alkanes and alcohols in the main components of the smoke, which contained a large number of long-branched cycloalkanes, alkyl benzene compounds and so on. For example, complex liquid hydrocarbon particles and gaseous hydrocarbon derivatives can be formed by reacting with oxygen in air, and there will be complex organic compounds such as 3o 4 benzopyrene carcinogen, thiophene, pyrrole, polycyclic aromatic hydrocarbons and so on. Based on the analysis of the basic properties of the three kinds of asphalt, including the separation of four components, infrared analysis, elemental analysis, aging kinetics analysis, etc. Compared with the other two kinds of asphalt, Jiangyin 70# asphalt has lower reaction activation energy and smaller reaction rate constant, which indicates that the anti-aging performance of Jiangyin 70# asphalt is worse than that of Liaohe 70# asphalt and Ke Petrochemical 70# asphalt. In order to solve the problem of flue gas production in Jiangyin 70#, eight kinds of asphalt smoke suppressants, one kind of plastic smoke inhibitor, one kind of high temperature antioxidant and four kinds of resin flame retardants, were selected. Two kinds of anti-aging agents are some kind of anti-aging agents, which can effectively increase the anti-aging performance of petroleum products, as smoke inhibitor A and smoke inhibitor B, respectively, and one kind of high temperature antioxidant mainly improves the anti-oxidation ability of asphalt. It can reduce the smoke produced by high temperature oxidation of asphalt as smoke suppressant C and a kind of plastic smoke inhibitor is a kind of metal hydroxide which can improve the high temperature stability of asphalt inhibit the production of volatile matter reduce the amount of smoke and mark it as smoke suppressant D. The other four resin flame retardants can form a layer of insulation on the surface of asphalt to reduce the oxygen contact between asphalt and air, and then reduce the production of asphalt smoke. Through screening, the optimal combination of smoke suppressant for Jiangyin 70# asphalt is 2% and 1% D. the properties of modified asphalt show that the addition of smoke suppressant will not affect the road effect of asphalt.
【學(xué)位授予單位】:中國石油大學(xué)(華東)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TE626.86
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