PARA-XYLENE PROCESS USING PERM -SELECTIVE SEPARATIONS
摘要
PARA-XYLENE PROCESS USING PERM -SELECTIVE SEPARATIONS Processes and apparatus are disclosed for recovery of purified products from a fluid mixture by means of integrated perm-selective separations with purified product recovery operations. More particularly, integrated processes of the invention comprise separations by means of one or more devices using polymeric membranes coupled with recovery of purified products by means of fractional crystallization and/or selective sorption. Processes of the invention are particularly useful for recovery of a very pure aromatic isomer when processing aromatic starting materials, for example, a pure para-xylene product from liquid mixtures even containing ethylbenzene as well as the three xylene isomers.
申请公布号
SG148181(A1)
申请公布日期
2008.12.31
申请号
SG20080084949
申请日期
2004.07.15
申请人
BP CORPORATION NORTH AMERICA INC.
发明人
MILLER, JEFFREY, T.;CHEN, BO;COLLING, CRAIG, W.;HUFF, GEORGE, A., JR.;CADWELL, MARVIN, L.