Continuous protein recovery with a liquid–solid circulating fluidized‐bed ion exchanger

Solid holdup in liquid solid circulating fluidized bed with viscous liquid medium

“…Refs. [7][8][9][10] characterized the microflow structure of LSCFB and compared with the fast fluidization in the gas solid circulating fluidized bed (CFB). The circulating fluidized bed regime was divided into initial and fully developed zone.…”

Hydrodynamics of a liquid–solid circulating fluidized bed: Effect of dynamic leak

“…The reactivated catalyst is fed back into the riser from the downcomer. Similarly, in the case of continuous recovery of proteins from un-clarified whole broth [7][8][9], the adsorption and desorption (regeneration) of proteins are carried out separately in the downcomer and the riser, respectively, in a continuous mode with ion exchange particles circulated between the two columns. For the removal of biological nutrient from waste water, solid particles with biofilm are circulated between the riser where nitrification occurs and the downcomer where de-nitrification is carried out simultaneously [10].…”

Numerical simulation of counter-current flow field in the downcomer of a liquid–solid circulating fluidized bed

“…To take advantage of the exceptional characteristics of LSCFBs, Lan, Zhu, Bassi, & Margaritis (2002) and Lan et al (2000) reported an LSCFB ion-exchange system for the continuous extraction of proteins. In addition to modeling the riser, they also developed a semi-empirical correlation to predict the solids holdup in the downcomer.…”