Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent
Patent
1987-07-27
1990-02-06
Caldarola, Glenn
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By contact with solid sorbent
585826, 208310Z, C07C 712
Patent
active
048990175
ABSTRACT:
A process scheme for the recovery of high purity p-xylene or p-xylene and ethyl benzene from C.sub.8 aromatics is described. In the process, zeolites such as ZSM-5 type, zeolite beta and ZSM-11 with optimum silica alumina ratio is used as the adsorbent and light hydrocarbons, such as C.sub.5 is used as the desorbent. The process system is operated isothermally at low temperature and low pressures.
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Broughton, D. B., et al., "The Parex Process for Recovering Para Xylene" CEP. 66 70-75, #9, (1970).
Chemical Engineering Progress, vol. 66, No. 9, Sep. 1970, p. 70.
Caldarola Glenn
McKillop Alexander J.
Mobil Oil Corporation
Schneller Marina V.
Speciale Charles J.
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