Measuring and testing – With fluid pressure – Porosity or permeability
Patent
1982-09-09
1984-12-25
Kreitman, Stephen A.
Measuring and testing
With fluid pressure
Porosity or permeability
73432PS, G01N 1508
Patent
active
044895933
ABSTRACT:
Methods for determining the amount of a gas adsorbed or desorbed from a solid sample wherein a gas is introduced or withdrawn from a sample containing chamber at a substantially constant mass flow rate while measuring the pressure change within said chamber as a function of time is disclosed. An apparatus for conducting said method which uses a mass flow controller is also disclosed.
REFERENCES:
patent: 2729969 (1956-01-01), Innes
patent: 3222133 (1965-12-01), Ballou et al.
patent: 3771367 (1973-11-01), Lowell et al.
patent: 3850040 (1974-11-01), Orr et al.
"Adsorption Flow Apparatus for Particle Surface Area Determinations", Numec Instruments and Control Corp., pp. 1 and 2, May 3, 1965.
F. M. Nelsen et al., "Determination of Surface Area", Analytical Chemistry, vol. 30, No. 8, Aug. 1958, pp. 1387-1390.
Robert J. Farrauto, "Determination and Applications of Catalytic Surface Area Measurements", AIChE Symposium Series No. 143, vol. 70, pp. 9-22, Jan. 15, 1975.
D. Dollimore et al., "The BET Method of Analysis of Gas Adsorption Data and its Relevance to the Calculation of Surface Areas", Surface Technology, vol. 4 (1976), pp. 121-160.
H. Bosch et al., "Automatic and Low-cost Determination of BET Surface Areas", Journal of Physics E. Scientific Instruments, vol. 10, pp. 605-608, (1977).
Bhat, R. et al., "A Simple Continuous Flow Apparatus for the Determination of Surface Area of Powders", Indian Journal of Technology, vol. 14, pp. 170-171, Apr. 1976.
M. G. Farey et al., "Determination of Surface Areas by an Improved Continuous Flow Method", Analytical Chemistry, vol. 43, No. 10, Aug. 1971, pp. 1307-1310.
Gates William E.
Pieters Wim J.M.
Kreitman Stephen A.
Omicron Technology Corporation
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