Regenerant recycle process for oxygenate removal

Details Regenerant recycle process for oxygenate removal Regenerant recycle process for oxygenate removal

1994-12-12

1996-04-23

Gibson, Sharon

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

585800, 568697, 568699, C07C 712, C07C 4100, C07C 4300

Patent

active

055105661

ABSTRACT:
In methyl tertiary butyl ether (MTBE) plant n-butane is used to regenerate a molecular sieve adsorption bed of an oxygen removal unit, and contaminated n-butane is purified by distillation and recycled for further regeneration. The requirement for n-butane is thus reduced and little or no contaminated n-butane need be diverted for use as fuel gas.

REFERENCES:
patent: 4447653 (1984-05-01), Vora
M. B. Rao and S. Sircar, Production of Motor Fuel Grade Alcohol by Concentration Swing Adsorption, 1992, pp. 1875-1887.
S. Sakata, H. Kuribayashi and I. Sugawara, Advanced Radwaste System, pp. 255-262.
F. Raiter, D. Glasser and A. W. Bryson, The regenneration of weak and strong cation exchange resions with an aqueous solution of SO.sub.2, pp. 93-105.
E. Korngold, Water Desalination by Ion-Exchange Hollow Fibers, pp. 123-135.
J. P. van der Hoek and A. Klapwijk, Reduction of Regeneration Salt Requiremetn and Waste Disposal in an Ion exchange Process for Nitrate removal From Ground Water, 1989, pp. 203-210.
P. C. Chiang and J. E. Etzel, A New Regeneration Technique for Mixed-Bed Ion-Exchanger Process, 1986, pp. 307-317.
Robert Trubac, The C.sub.4 Raffinate Treatment Process Methanol Recovery/Oxygenate Removal, 1987, pp. 1-18.

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