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Title: Method for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein

A method is described for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein. A direct correlation between the octane rating of gasoline and the frequency of corresponding acoustic resonances therein has been experimentally observed. Therefore, the octane rating of a gasoline sample can be directly determined through speed of sound measurements instead of by the cumbersome process of quantifying the knocking quality of the gasoline. Various receptacle geometries and construction materials may be employed. Moreover, it is anticipated that the measurements can be performed on flowing samples in pipes, thereby rendering the present method useful in refineries and distilleries. 3 figs.
Inventors:
;
Issue Date:
OSTI Identifier:
441853
Assignee:
Univ. of California, Los Alamos, NM (United States) PTO; SCA: 023000; PA: EDB-97:038799; SN: 97001739244
Patent Number(s):
US 5,606,130/A/
Application Number:
PAN: 8-218,012
Contract Number:
W-7405-ENG-36
Resource Relation:
Other Information: PBD: 25 Feb 1997
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; GASOLINE; ANTIKNOCK RATINGS; ACOUSTIC TESTING; SOUND WAVES; WAVE PROPAGATION; PIPELINES; ON-LINE MEASUREMENT SYSTEMS