表面活性剂对分子筛滤饼流变性能和干燥效果的影响  

Effect of Surfactant on Rheological Characteristics and Desiccation of Molecula r Sieve Filtered Cake

作　　者：马跃龙[1] 达志坚[1] 何鸣元[1] 田辉平[1] 

机构地区：[1]石油化工科学研究院,北京100083

出　　处：《石油化工》2003年第6期509-512,共4页Petrochemical Technology

摘　　要：将表面活性剂加入到Y型分子筛滤饼中,可有效降低分子筛滤饼的粘度,使滤饼输送过程中所用的电机电流降至接近空载状态,消除了以往生产中电机频繁跳闸的现象,提高了生产效率。此外,表面活性剂的引入,可加快分子筛滤饼的蒸发速率,改善干燥后的分子筛固含量,提高干燥器的热效率。引入表面活性剂不影响分子筛的物化性能和裂化性能。Influence of surfactant on rheological characteristics and desiccation of the molecular sieve filtered cake was investigated The addition of surfactant tends to reduce the viscosity of molecular sieve filtered cake,and accelerate evaporation of water during drying In scale-up experiments,electric motor used to transport the cake could run as if approaching zero loading,therefore occurrence of current break off in the case of overloading can be avoided Furthermore,increase in molecular sieve solid content after desiccation improves heat efficiency of desiccator There was no difference in respect of physicochemical and cracking properties between conventional USY molecular sieve and that with addition of surfactant

关 键 词：表面活性剂 分子筛 滤饼 流变性能 干燥效果 粘度 物化性能 裂化性能 

分 类 号：TQ426.6[化学工程]