Boots – shoes – and leggings
Patent
1990-08-28
1993-08-24
Cosimano, Edward R.
Boots, shoes, and leggings
73 38, G01N 1508
Patent
active
052394824
ABSTRACT:
For measuring the adsorption and desorption of a gas adsorbed by a solid sample, a gas pressure drop during the adsorption phase or a gas pressure increase during the desorption phase is programmed in the reservoir circuit 1 from 0.1 to 0.7 Pa per minute by at least one regulating valve V.sub.P1 having a proportional opening, in order to transfer a substantially constant flow of gas to the sample and from the sample to the reservoir, the gas pressure being measured periodically in the measuring circuit by pressure sensors. By a microprocessor, the isotherm of adsorption and desorption is determined based on the volume of the reservoir circuit, the quantity of gas transferred, the gas pressure in the measuring circuit, and the volume of the measuring circuit. The system measures the adsorption-desorption isotherms of a gas from a solid.
REFERENCES:
patent: Re33567 (1991-04-01), Killip et al.
patent: 3707870 (1973-01-01), Herve et al.
patent: 3850040 (1974-11-01), Orr, Jr. et al.
patent: 4487213 (1984-12-01), Gates et al.
patent: 4489593 (1984-12-01), Pieters et al.
patent: 4566326 (1986-01-01), Lowell
patent: 4693124 (1987-09-01), Killip et al.
patent: 4762010 (1988-08-01), Borghard et al.
patent: 5058442 (1991-10-01), Yamanaka et al.
patent: 5109716 (1992-05-01), Ito et al.
J. E. Shields and S. Lowell, "A High Throughput Automated Instrument for Adsorption and Desorption Isotherms"; Jan./Feb. 1985, pp. 37, 40, 42, 44 and 46, International Laboratory.
Gregg et al., "The Physical Adsorption of Gases by Nonporous Solids: The Type II Isotherm," Adsorption, Surface Area and Porosity, 2nd edition, Academic Press, 1982, pp. 41-85.
Rouquerol et al., "A Critical Assessment of Quasi-Equilibrium Gas Techniques in Volumetry, Gravimetry or Calorimetry," Characterization of Porous Solids, Elsevier Science Publishers, 1988, pp. 67-76.
Ajot Hubert
Garnier Dominique A.
Joly Jean F.
Marny Felix
Raatz Francis
Cosimano Edward R.
Institut Francais du Pe'trole
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