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Title: Enhancing chemical reactions

Abstract

Methods of enhancing selected chemical reactions. The population of a selected high vibrational energy state of a reactant molecule is increased substantially above its population at thermal equilibrium by directing onto the molecule a beam of radiant energy from a laser having a combination of frequency and intensity selected to pump the selected energy state, and the reaction is carried out with the temperature, pressure, and concentrations of reactants maintained at a combination of values selected to optimize the reaction in preference to thermal degradation by transforming the absorbed energy into translational motion. The reaction temperature is selected to optimize the reaction. Typically a laser and a frequency doubler emit radiant energy at frequencies of .nu. and 2.nu. into an optical dye within an optical cavity capable of being tuned to a wanted frequency .delta. or a parametric oscillator comprising a non-centrosymmetric crystal having two indices of refraction, to emit radiant energy at the frequencies of .nu., 2.nu., and .delta. (and, with a parametric oscillator, also at 2.nu.-.delta.). Each unwanted frequency is filtered out, and each desired frequency is focused to the desired radiation flux within a reaction chamber and is reflected repeatedly through the chamber while reactants are fedmore » into the chamber and reaction products are removed therefrom.« less

Inventors:
 [1]
  1. Richland, WA
Issue Date:
Research Org.:
Battelle Memorial Institute, Columbus, OH (United States)
OSTI Identifier:
863218
Patent Number(s):
4124466
Assignee:
Battelle Memorial Institute (Columbus, OH)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
enhancing; chemical; reactions; methods; selected; population; vibrational; energy; reactant; molecule; increased; substantially; thermal; equilibrium; directing; beam; radiant; laser; combination; frequency; intensity; pump; reaction; carried; temperature; pressure; concentrations; reactants; maintained; values; optimize; preference; degradation; transforming; absorbed; translational; motion; typically; doubler; emit; frequencies; optical; dye; cavity; capable; tuned; delta; parametric; oscillator; comprising; non-centrosymmetric; crystal; indices; refraction; unwanted; filtered; desired; focused; radiation; flux; chamber; reflected; repeatedly; fed; products; removed; therefrom; optical cavity; radiant energy; reaction chamber; chemical reaction; reaction product; reaction products; reaction temperature; chemical reactions; parametric oscillator; thermal equilibrium; removed therefrom; selected chemical; selected energy; thermal degradation; vibrational energy; desired frequency; radiation flux; /204/

Citation Formats

Morrey, John R. Enhancing chemical reactions. United States: N. p., 1978. Web.
Morrey, John R. Enhancing chemical reactions. United States.
Morrey, John R. Sun . "Enhancing chemical reactions". United States. https://www.osti.gov/servlets/purl/863218.
@article{osti_863218,
title = {Enhancing chemical reactions},
author = {Morrey, John R},
abstractNote = {Methods of enhancing selected chemical reactions. The population of a selected high vibrational energy state of a reactant molecule is increased substantially above its population at thermal equilibrium by directing onto the molecule a beam of radiant energy from a laser having a combination of frequency and intensity selected to pump the selected energy state, and the reaction is carried out with the temperature, pressure, and concentrations of reactants maintained at a combination of values selected to optimize the reaction in preference to thermal degradation by transforming the absorbed energy into translational motion. The reaction temperature is selected to optimize the reaction. Typically a laser and a frequency doubler emit radiant energy at frequencies of .nu. and 2.nu. into an optical dye within an optical cavity capable of being tuned to a wanted frequency .delta. or a parametric oscillator comprising a non-centrosymmetric crystal having two indices of refraction, to emit radiant energy at the frequencies of .nu., 2.nu., and .delta. (and, with a parametric oscillator, also at 2.nu.-.delta.). Each unwanted frequency is filtered out, and each desired frequency is focused to the desired radiation flux within a reaction chamber and is reflected repeatedly through the chamber while reactants are fed into the chamber and reaction products are removed therefrom.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

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