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Title: Recovery of nitrogen and light hydrocarbons from polyalkene purge gas

Abstract

A method for the separation of a gas mixture comprises (a) obtaining a feed gas mixture comprising nitrogen and at least one hydrocarbon having two to six carbon atoms; (b) introducing the feed gas mixture at a temperature of about 60.degree. F. to about 105.degree. F. into an adsorbent bed containing adsorbent material which selectively adsorbs the hydrocarbon, and withdrawing from the adsorbent bed an effluent gas enriched in nitrogen; (c) discontinuing the flow of the feed gas mixture into the adsorbent bed and depressurizing the adsorbent bed by withdrawing depressurization gas therefrom; (d) purging the adsorbent bed by introducing a purge gas into the bed and withdrawing therefrom an effluent gas comprising the hydrocarbon, wherein the purge gas contains nitrogen at a concentration higher than that of the nitrogen in the feed gas mixture; (e) pressurizing the adsorbent bed by introducing pressurization gas into the bed; and (f) repeating (b) through (e) in a cyclic manner.

Inventors:
; ; ;
Issue Date:
Research Org.:
Air Products and Chemicals, Inc., Allentown, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174360
Patent Number(s):
6,576,043
Application Number:
09/976,398
Assignee:
Air Products and Chemicals, Inc. (Allentown, PA) OSTI
DOE Contract Number:  
FC02-00CH110022
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Zwilling, Daniel Patrick, Golden, Timothy Christoph, Weist, Jr., Edward Landis, and Ludwig, Keith Alan. Recovery of nitrogen and light hydrocarbons from polyalkene purge gas. United States: N. p., 2003. Web.
Zwilling, Daniel Patrick, Golden, Timothy Christoph, Weist, Jr., Edward Landis, & Ludwig, Keith Alan. Recovery of nitrogen and light hydrocarbons from polyalkene purge gas. United States.
Zwilling, Daniel Patrick, Golden, Timothy Christoph, Weist, Jr., Edward Landis, and Ludwig, Keith Alan. Tue . "Recovery of nitrogen and light hydrocarbons from polyalkene purge gas". United States. https://www.osti.gov/servlets/purl/1174360.
@article{osti_1174360,
title = {Recovery of nitrogen and light hydrocarbons from polyalkene purge gas},
author = {Zwilling, Daniel Patrick and Golden, Timothy Christoph and Weist, Jr., Edward Landis and Ludwig, Keith Alan},
abstractNote = {A method for the separation of a gas mixture comprises (a) obtaining a feed gas mixture comprising nitrogen and at least one hydrocarbon having two to six carbon atoms; (b) introducing the feed gas mixture at a temperature of about 60.degree. F. to about 105.degree. F. into an adsorbent bed containing adsorbent material which selectively adsorbs the hydrocarbon, and withdrawing from the adsorbent bed an effluent gas enriched in nitrogen; (c) discontinuing the flow of the feed gas mixture into the adsorbent bed and depressurizing the adsorbent bed by withdrawing depressurization gas therefrom; (d) purging the adsorbent bed by introducing a purge gas into the bed and withdrawing therefrom an effluent gas comprising the hydrocarbon, wherein the purge gas contains nitrogen at a concentration higher than that of the nitrogen in the feed gas mixture; (e) pressurizing the adsorbent bed by introducing pressurization gas into the bed; and (f) repeating (b) through (e) in a cyclic manner.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {6}
}

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