升级废旧轮胎热解油的研究

Research on Upgrading Pyrolysis Oil from Waste Tires

废轮胎作为可再生资源来回收利用。废轮胎在500℃下经催化剂ZnO催化以及脱硫剂Cu(NO_(3))_(2)处理,得到初级产品油,再经蒸馏得不同温度下的馏分。实验表明,在蒸馏温度小于208℃,所得馏分产率为56.7%(wt%),在比重、运动黏度、热值、颜色、气味、透明度方面都基本符合0#商业柴油的基本要求;当蒸馏温度大于208℃,所得馏分产率为33.3%,各方面的性质达不到0#商业柴油的要求。生物质与轮胎共热解油蒸馏实验表明,经负载5%Co/HZSM-5作催化剂得到的油品,在蒸馏温度小于208℃,其馏分与0#商业柴油相比,比重高了3.14%,粘度低了35.5%,热值低了20.4%;经负载10%Ni/HZSM-5作催化剂时,比重为0.864 g/ml,运动粘度为1.43 mm^(2)/s,热值为38.0 MJ/Kg,与0#商业柴油柴油相比,比重高了3.62%,粘度低了51.2%,热值低了15.6%。生物质油的颜色较深,气味较浓。

Waste tires are recycled as renewable resource.Waste tires are treated with ZnO catalyst and Cu(NO_(3))_(2)desulfurizer at 500℃to obtain primary product oil,which is then distilled to obtain fractions at different temperatures.The experiment shows that at a distillation temperature below 208℃,the yield of the obtained fraction is 56.7%(wt%),which basically meets the basic requirements of 0#commercial diesel in terms of specific gravity,kinematic viscosity,calorific value,color,odor,and transparency.When the distillation temperature is greater than 208℃,the yield of the obtained fraction is 33.3%,and all properties cannot meet the requirements of 0#commercial diesel.The distillation experiment of biomass and tire co pyrolysis oil shows that the oil obtained by loading 5%Co/HZSM-5 catalyst has a distillation temperature of less than 208℃,and its fraction is 3.14%higher in specific gravity,35.5%lower in viscosity,and 20.4%lower in calorific value compared to 0#commercial diesel.When loaded with 10%Ni/HZSM-5 as catalyst,the specific gravity is 0.864 g/mL,the kinematic viscosity is 1.43 mm^(2)/s,and the calorific value is 38.0 MJ/Kg.Compared with 0#commercial diesel,the specific gravity is 3.62%higher,the viscosity is 51.2%lower,and the calorific value is 15.6%lower.Biomass oil has a darker color and a stronger odor.