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Primary Examiner: Spitzer, Robert H.
Assistant Examiner:
Attorney: Leslie; Thomas B., Williams, Jr.; J. W.

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Title: Selective adsorption process

Abstract: There is provided an improved, environmentally acceptable adsorption process for the recovery of hydrogen and normally liquid hydrocarbon from a feed gas mixture by utilizing a membrane permeator unit selectively permeable to hydrogen to recover a permeated hydrogen gas from the purge gas obtained from the regeneration of a selective adsorption unit, recycling the permeated hydrogen gas to a guard adsorber of the selective adsorption unit as purge gas and blending said gas with the feed gas mixture for recovery of normally liquid hydrocarbon and of the added proportion of hydrogen as purified hydrogen product.

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Inventors: Intille, George M. (Randolph, NJ, US)

Application Number: 049515
Filing Date: 1979-06-18
Publication_date: 1980-10-21
Assignee: Monsanto Company (St. Louis, MO)
Primary Class(es): 95/55 95/100, 96/8, 96/130
Other Classes:
US Patent Ref:

3141748	Jul, 1964	Hoke et al.	55/25.
3142547	Jul, 1964	Marsh et al.	55/26.
3336730	Aug, 1967	McBride et al.	55/16.
3430418	Mar, 1969	Wagner	55/25.
3702525	Nov, 1972	Simon et al.	55/25.
3838553	Oct, 1974	Doherty	55/66.
4171207	Oct, 1979	Sircar	55/26.
4180552	Dec, 1979	Graham et al.	55/16.
4181675	Jan, 1980	Makin et al.	55/16.

Other Refs: Other References: Hydrocarbon Processing, Jul. 1977, pp. 147-152, vol. 56, No. 7, "Cryogenics Increase Benzene Recovery".