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Knocking characteristics gasoline

Octane rating (Section 2 16) The capacity of a sample of gasoline to resist knocking expressed as a number equal to the percentage of 2 2 4 trimethylpentane ( isooctane ) in an isooctane-heptane mixture that has the same knocking characteristics... [Pg.1289]

Gasoline-air mixtures tend to ignite prematurely, or knock, rather than bum smoothly. The octane number of a gasoline is a measure of its resistance to knock. It is determined by comparing the knocking characteristics of a gasoline sample with those of isooctane (the common name of one of the isomers of octane) and heptane ... [Pg.584]

Research Octane Number is a measure of the knocking characteristics of gasoline in a laboratory engine and can be used to characterize gasoline quality. The best linear regression model to predict RON for catalyst A has the form ... [Pg.190]

The petroleum refiner, by the mid-thirties, was faced with two problems (a) What hydrocarbon constituents did his gasolines and low boiling naphthas contain and (b) What were the knocking characteristics of each of these constituents ... [Pg.357]

Other Properties. THERMAL STABILITY. Several attempts have been made to correlate knock resistance with thermal stability. Petrov (162) attempted to account for the knock characteristics of various gasoline fractions in terms of their cracking products. Rice (177) showed that a parallelism existed between yields of cracking products and knock tendency. Estradgre (60) did not find a direct relation between temperature for initial cracking and detonation characteristics. [Pg.191]

Octane number a number indicating the anti-knock characteristics of gasoline. [Pg.446]

G. Edgar, Measurement of Knock Characteristics of Gasoline in Terms of Standard Fuel, Ind. Eng. Chem. 19 (1927) 145. [Pg.749]

For natural gasoline, the primary criteria are volatility (vapor pressure) and knock performance. Determination of the vapor pressure (ASTM D-323, ASTM D-4953, ASTM D-5190,ASTM D-5191) and distillation profile (ASTM D-216, IP 191) is essential. Knock performance is determined by rating in knock test engines by both the motor method (ASTM D-2700, IP 236) and the research method (ATSM-2699, IP 237). The knock characteristics of liquefied petroleum gases can also be determined (IP 238). [Pg.83]

The knock rating of a gasoline is expressed as octane number and is the percentage by volume of o-octane (octane number 100, by definition) in admixture with normal heptane (octane number 0, by definition) that has the same knock characteristics as the gasoline being assessed. [Pg.113]

See other pages where Knocking characteristics gasoline is mentioned: [Pg.145]    [Pg.104]    [Pg.254]    [Pg.15]    [Pg.165]    [Pg.117]    [Pg.109]    [Pg.338]    [Pg.494]    [Pg.1047]    [Pg.1014]    [Pg.259]    [Pg.1050]    [Pg.1906]    [Pg.245]    [Pg.992]    [Pg.95]    [Pg.1008]    [Pg.22]    [Pg.40]    [Pg.7]    [Pg.213]    [Pg.179]    [Pg.80]    [Pg.339]    [Pg.105]    [Pg.86]    [Pg.12]    [Pg.179]    [Pg.87]    [Pg.134]    [Pg.190]    [Pg.254]   
See also in sourсe #XX -- [ Pg.1050 ]



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