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Title: Gas separation using ultrasound and light absorption

Abstract

An apparatus and method for separating a chosen gas from a mixture of gases having no moving parts and utilizing no chemical processing is described. The separation of particulates from fluid carriers thereof has been observed using ultrasound. In a similar manner, molecular species may be separated from carrier species. It is also known that light-induced drift may separate light-absorbing species from carrier species. Therefore, the combination of temporally pulsed absorption of light with ultrasonic concentration is expected to significantly increase the efficiency of separation by ultrasonic concentration alone. Additionally, breaking the spatial symmetry of a cylindrical acoustic concentrator decreases the spatial distribution of the concentrated particles, and increases the concentration efficiency.

Inventors:
 [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1058902
Patent Number(s):
8231707
Application Number:
12/242,185
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
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Sinha, Dipen N. Gas separation using ultrasound and light absorption. United States: N. p., 2012. Web.
Sinha, Dipen N. Gas separation using ultrasound and light absorption. United States.
Sinha, Dipen N. Tue . "Gas separation using ultrasound and light absorption". United States. https://www.osti.gov/servlets/purl/1058902.
@article{osti_1058902,
title = {Gas separation using ultrasound and light absorption},
author = {Sinha, Dipen N},
abstractNote = {An apparatus and method for separating a chosen gas from a mixture of gases having no moving parts and utilizing no chemical processing is described. The separation of particulates from fluid carriers thereof has been observed using ultrasound. In a similar manner, molecular species may be separated from carrier species. It is also known that light-induced drift may separate light-absorbing species from carrier species. Therefore, the combination of temporally pulsed absorption of light with ultrasonic concentration is expected to significantly increase the efficiency of separation by ultrasonic concentration alone. Additionally, breaking the spatial symmetry of a cylindrical acoustic concentrator decreases the spatial distribution of the concentrated particles, and increases the concentration efficiency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Patent:

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Works referenced in this record:

Trapping of heavy gases in stationary ultrasonic fields
journal, September 2002


Adsorption effects in light-induced drift
journal, April 1987


Acoustic concentration of particles in piezoelectric tubes: Theoretical modeling of the effect of cavity shape and symmetry breaking
journal, October 2004

  • Kogan, Shulim; Kaduchak, Gregory; Sinha, Dipen N.
  • The Journal of the Acoustical Society of America, Vol. 116, Issue 4, p. 1967-1974
  • https://doi.org/10.1121/1.1785613