ISSN:0001-1541    

DOI:10.1002/aic.690110102

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690110104

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY

摘要:

AbstractFrequencies and amplitudes of oscillations for nineteen pure systems were measured photographically. The period of oscillation was longer than that predicted by Lamb. The discrepancy was not due to wall effects, viscosity, or velocity of fall but to amplitude of oscillation. Modification of previous expressions included an amplitude function which could be experimental or empirical. Oscillations began near the peak velocity, and a vortex trail was necessary for them to take place. Oblate‐prolate oscillations did not cause drop breakup, as all systems ceased to oscillate and wobbled randomly below maximum drop size. Oscillations do not decay with tim

ISSN:0001-1541    

DOI:10.1002/aic.690110105

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690110106

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690110107

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY

摘要:

AbstractA theoretical model for interstitial liquid flow in a stationary or moving foam was devised by relating the physical structure of the foam to the physical properties of the surfactant and the foam movement. This was accomplished through a differential momentum balance within a typical capillary (Plateau border) of noncircular cross section with finite surface viscosity at its boundaries. Velocity profiles were then calculated and integrated numerically for the randomly oriented capillaries so as to obtain the overall liquid flow through the foam in terms of the pertinent variables. Results are presented in a form suitable for estimating concentrations and flow rates of product and waste streams in foam fractionation.

ISSN:0001-1541    

DOI:10.1002/aic.690110108

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY

摘要:

AbstractExperimental results obtained over a wide range of variables from three different foam fractionation columns support the theory developed in Part I.

ISSN:0001-1541    

DOI:10.1002/aic.690110109

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690110110

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690110111

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY

摘要:

AbstractThis work utilizes the developments of the foregoing paper (10) to analyze adsorption data, in the form of breakthrough curves, for ethyl alcohol on silica gel at 90° to 155°C. It was found that for the smallest particle size, and in the lower part of the temperature range, the overall rate was determined by the surface adsorption process. At other conditions intraparticle diffusion was also a significant resistance in the overall process. The theoretical breakthrough curves agreed well with the experimental ones, so that the surface rate constant and diffusivity could be calculated.Analysis of the diffusivity results showed that surface migration on the pore walls was the predominant contribution rather than gas‐phase diffusion in the pore vol

ISSN:0001-1541    

DOI:10.1002/aic.690110112

出版商:American Institute of Chemical Engineers    

年代:1965

数据来源: WILEY