论文部分内容阅读
The mechanically stirred internal loop airlift reactors equipped with or without static mixers are devisedfor intensification of gas-liquid mass transfer rate.The influences of superficial gas velocity,agitation or staticmixers on gas hold-up,mixing time,liquid circulating velocity and volumetric mass transfer coefficient have beeninvestigated with tap water and carboxymethyl cellulose (CMC) aqueous solution.The experimental results indicatethat mechanical agitation is more efficacious than static mixer in highly viscous media for improving mass transferin airlift reactors.The empirical correlation of volumetric mass transfer coefficient with apparent viscosity,andenergy consumption for mechanical agitation and aeration is developed.
The mechanical stirred internal loop airlift reactors equipped with or without static mixers are devised for intensification of gas-liquid mass transfer rate. These influences of superficial gas velocity, agitation or staticmixers on gas hold-up, mixing time, liquid circulating velocity and volumetric mass transfer coefficient have been investigated with tap water and carboxymethyl cellulose (CMC) aqueous solution. The experimental results indicatethat mechanical agitation is more efficacious than static mixer in highly viscous media for improving mass transferin airlift reactors. The empirical correlation of volumetric mass transfer coefficient with apparent viscosity, andenergy consumption for mechanical agitation and aeration is developed.