Thermal measuring and testing – Thermal testing of a nonthermal quantity
Patent
1981-07-13
1984-01-24
Goldstein, Herbert
Thermal measuring and testing
Thermal testing of a nonthermal quantity
73 611R, G01N 2514
Patent
active
044273053
ABSTRACT:
Disclosed is an analyzer for determining volatile composition changes of a distillable material which comprises: (a) a first device for causing at least a portion of said material to be at a temperature and at a pressure so that a difference in temperature of said portion of said material across an isenthalpic expansion at critical flow conditions would be at least about 5.degree. F.; (b) a second device for carrying out said isenthalpic expansion on said at least a portion of said material; (c) a third device for measuring at least two temperatures of said material where said at least two temperatures are a first and a second temperature, said first temperature being measured upstream of said expansion and said second temperature being measured downstream from said expansion; and (d) a fourth device for maintaining pressure downstream of said expansion to a value which does not vary by an amount in excess of about 20% of said pressure downstream of said expansion. The disclosed analyzer can be used in conjunction with equipment useful for processing distillable material into various boiling fractions. Disclosed also is a particular application for the analyzer in an online configuration for refining of petroleum crudes.
REFERENCES:
patent: 3264862 (1966-08-01), Felton et al.
patent: 3354052 (1967-11-01), Williams
patent: 3521479 (1970-07-01), Carter
patent: 3535915 (1970-10-01), Felton et al.
Dresser Thorpe
Ohlswager Stanley
Peterman Lee G.
Plys Albert G.
Atlantic Richfield Company
Goldstein Herbert
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