YANG Minglei, WEI Min, HU Rong, et al. Modeling of simulated moving bed for xylene separation[J]. CIESC Journal, 2013, (12): 4335-4341.DOI: 10.3969/j.issn.0438-1157.2013.12.010.
Simulated moving bed (SMB) is an important technology in xylene isomers separation.The reflux ratios of SMB in each zone are of key importance in determining the purity and recovery of PX.On the basis of the true moving bed (TMB) modeling scheme and industrial data
the SMB mechanism model is established.The operation interval for the reflux ratio is obtained via analyzing the effect of reflux ratio on the purity and recovery of PX product.The results show that the TMB modeling scheme performs great in describing the industrial SMB
and the analysis based on the mechanism model facilitates the design and operation of a SMB for PX separation.