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Patent Searching and Data


Title:
METHOD FOR DETERMINING PHYSICAL PROPERTY OF HYDROCARBON PRODUCT
Document Type and Number:
Japanese Patent JP01113636
Kind Code:
A
Abstract:

PURPOSE: To determine physical property by measuring the absorbance of a specific frequency for a constituent using an IR spectrometer and calculating the property to be obtained of a product from a mixed index obtained by applying a correlation for a measurement value by applying a specific expression.

CONSTITUTION: An IR spectrometer is used and an absorbance at a constant frequency within a spectrum range of 16,667-3,840cm-1 for a constituent or an arbitrary mixture starting from a base line equivalent to zero absorbance is measured. By applying correlation for a measured absorbance value, a vector index (SMI)JI is determined for constituent I and each property J. It is experimentally determined based on the type of the spectrometer using the correlation, property to be obtained, and frequency used. Then, the property J to be obtained of a product is calculated by applying a primary expression indicated by an expression. Each term of the expression is the product between spectrum mixed index SMIa,... and a volume part fa,... of the constituent. In this manner, the constituent can determine the physical property of an arbitrary mixture.


Inventors:
Espinosa, Alain
Lambert, Didier C.
Martens, Andre
Pasquier, Antoine
Ventron, Gilbert
Application Number:
JP1988000203935
Publication Date:
May 02, 1989
Filing Date:
August 18, 1988
Export Citation:
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Assignee:
BP OIL INTERNATL LTD
International Classes:
G01N21/35; G01N33/22; G01N33/28; F02B3/06; (IPC1-7): G01N21/35; G01N33/22