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Title: Enrichment of light hydrocarbon mixture

Abstract

Light hydrocarbon enrichment is accomplished using a vertically oriented distillation column having a plurality of vertically oriented, nonselective micro/mesoporous hollow fibers. Vapor having, for example, both propylene and propane is sent upward through the distillation column in between the hollow fibers. Vapor exits neat the top of the column and is condensed to form a liquid phase that is directed back downward through the lumen of the hollow fibers. As vapor continues to ascend and liquid continues to countercurrently descend, the liquid at the bottom of the column becomes enriched in a higher boiling point, light hydrocarbon (propane, for example) and the vapor at the top becomes enriched in a lower boiling point light hydrocarbon (propylene, for example). The hollow fiber becomes wetted with liquid during the process.

Inventors:
 [1];  [2];  [3];  [4];  [5]
  1. Los Alamos, NM
  2. Santa Fe, NM
  3. Santa Cruz, NM
  4. Naperville, IL
  5. Warrenville, IL
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1032637
Patent Number(s):
8066852
Application Number:
12/827,981
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Yang, Dali, Devlin, David, Barbero, Robert S, Carrera, Martin E, and Colling, Craig W. Enrichment of light hydrocarbon mixture. United States: N. p., 2011. Web.
Yang, Dali, Devlin, David, Barbero, Robert S, Carrera, Martin E, & Colling, Craig W. Enrichment of light hydrocarbon mixture. United States.
Yang, Dali, Devlin, David, Barbero, Robert S, Carrera, Martin E, and Colling, Craig W. Tue . "Enrichment of light hydrocarbon mixture". United States. https://www.osti.gov/servlets/purl/1032637.
@article{osti_1032637,
title = {Enrichment of light hydrocarbon mixture},
author = {Yang, Dali and Devlin, David and Barbero, Robert S and Carrera, Martin E and Colling, Craig W},
abstractNote = {Light hydrocarbon enrichment is accomplished using a vertically oriented distillation column having a plurality of vertically oriented, nonselective micro/mesoporous hollow fibers. Vapor having, for example, both propylene and propane is sent upward through the distillation column in between the hollow fibers. Vapor exits neat the top of the column and is condensed to form a liquid phase that is directed back downward through the lumen of the hollow fibers. As vapor continues to ascend and liquid continues to countercurrently descend, the liquid at the bottom of the column becomes enriched in a higher boiling point, light hydrocarbon (propane, for example) and the vapor at the top becomes enriched in a lower boiling point light hydrocarbon (propylene, for example). The hollow fiber becomes wetted with liquid during the process.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {11}
}

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Works referenced in this record:

Designing hollow-fiber contactors
journal, November 1986


Hollow fibers as structured distillation packing
journal, April 2003


Distillation with nanoporous or coated hollow fibers
journal, July 2005


Membrane distillation
journal, February 1997


Hollow fiber membrane contactors
journal, July 1999


Non-selective membranes for separations
journal, January 2003