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Title: ''Transformation'' method for calculating the research and motor octane numbers of gasoline blends

Abstract

To overcome the conceptual and practical difficulties inherent in current methods for estimating the Research and Motor Octanes of unleaded and leaded gasoline blends, a new, general (non-refinery-specific) procedure has been constructed. It incorporates hypotheses on how blending nonlinearities are produced by processes occurring inside a knock test engine. Three effects are considered: interaction of major chemical classes of hydrocarbons, variability of conditions inside the engine when rating different fuels, and sulfur/lead antagonism. Measured component properties rather than ''blending values'' are employed in the calculations. Specifically, the method requires measured Research and Motor Octanes of the components, their concentrations, and contents of olefins, aromatics, and paraffins (saturates). Based on data derived from 564 gasolines of widely varying composition, the standard errors of prediction for the model were found to be approximately four-tenths of an octane number. 12 refs.

Authors:
; ;
Publication Date:
Research Org.:
API, Washington, DC
OSTI Identifier:
5267067
Resource Type:
Journal Article
Journal Name:
Ind. Eng. Chem. Fundam.; (United States)
Additional Journal Information:
Journal Volume: 20:3
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; GASOLINE; ANTIKNOCK RATINGS; OPERATION; PETROLEUM REFINERIES; FUELS; INDUSTRIAL PLANTS; LIQUID FUELS; PETROLEUM PRODUCTS; 020400* - Petroleum- Processing; 023000 - Petroleum- Properties & Composition

Citation Formats

Rusin, M H, Chung, H S, and Marshall, J F. ''Transformation'' method for calculating the research and motor octane numbers of gasoline blends. United States: N. p., 1981. Web. doi:10.1021/i100003a003.
Rusin, M H, Chung, H S, & Marshall, J F. ''Transformation'' method for calculating the research and motor octane numbers of gasoline blends. United States. doi:10.1021/i100003a003.
Rusin, M H, Chung, H S, and Marshall, J F. Sat . "''Transformation'' method for calculating the research and motor octane numbers of gasoline blends". United States. doi:10.1021/i100003a003.
@article{osti_5267067,
title = {''Transformation'' method for calculating the research and motor octane numbers of gasoline blends},
author = {Rusin, M H and Chung, H S and Marshall, J F},
abstractNote = {To overcome the conceptual and practical difficulties inherent in current methods for estimating the Research and Motor Octanes of unleaded and leaded gasoline blends, a new, general (non-refinery-specific) procedure has been constructed. It incorporates hypotheses on how blending nonlinearities are produced by processes occurring inside a knock test engine. Three effects are considered: interaction of major chemical classes of hydrocarbons, variability of conditions inside the engine when rating different fuels, and sulfur/lead antagonism. Measured component properties rather than ''blending values'' are employed in the calculations. Specifically, the method requires measured Research and Motor Octanes of the components, their concentrations, and contents of olefins, aromatics, and paraffins (saturates). Based on data derived from 564 gasolines of widely varying composition, the standard errors of prediction for the model were found to be approximately four-tenths of an octane number. 12 refs.},
doi = {10.1021/i100003a003},
journal = {Ind. Eng. Chem. Fundam.; (United States)},
number = ,
volume = 20:3,
place = {United States},
year = {1981},
month = {8}
}