Extraction of selection hydrocarbons from a hydrocarbon stream u

Details Extraction of selection hydrocarbons from a hydrocarbon stream u Extraction of selection hydrocarbons from a hydrocarbon stream u

1994-01-10

1995-08-15

Wu, David W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

585820, 585829, C07C 712

Patent

active

054420407

ABSTRACT:
The present invention is directed to adsorbing polymeric hydrocarbons (ie. polymers of iso-butylene, polymers of the isomers of iso-butylene (poly-butenes) and co-polymers of iso-butylene and other olefins (butyl rubber) from hydrocarbon or raffinate streams using activated carbon as the adsorbent. One embodiment includes the selective removal of poly-isobutylene (PIB) from a hydrocarbon stream by activated carbon. The stream which can exceed 100 ppm PIB is contacted with the activated carbon for a sufficient time to reduce the PIB content of the hydrocarbon stream to less than about 1 ppm.

REFERENCES:
patent: 2765914 (1956-10-01), Seyfried
patent: 3725377 (1973-04-01), Cottle
patent: 4570029 (1986-02-01), Kulprathipanja et al.
patent: 4734273 (1988-03-01), Haskell
Kirk-Othmer Encyclopedia of Chemical Technology, Fourth Edition, vol. 8, pp. 944-955 (1994).
Hawley's Condensed Chemical Dictionary, 8th Edition, pp. 218-219 (1987).

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