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 conventional USY molecular sieve and that with addition of surfactant
出处
《石油化工》
CAS
CSCD
北大核心
2003年第6期509-512,共4页
Petrochemical Technology
