Biddulph

Biddulph, M. W., When Distillation Can Be Unstable, Hydrocarbon Processing, September 1975, p. 123. 

Biddulph [90] emphasizes the importance of using point efficiencies rather than tray efficiencies or overall column efficiencies, due to the wide fluctuations that often exist. 

Biddulph [209] et al. summarize rules of thumb that have been expressed elsewhere in the literature for downcomer sizing (used by permission of Chem. Eng. Prog. V. 89, No. 12, 1993). 

Unstable liquid oscillations on a tray have received only limited examination when compared to perhaps tray weeping, flooding and froth build-up. Biddulph [87] pro-... 

Biddulph, S. E 1944. A revision of the genus Gaillardia. Research Studies State College, Washington 12 195-256. [Cited by Heywood and Levin, 1984.]... 

MELVIN J. BRYSON1, C. I. DRAPER, JOSEPH R. HARRIS, CLYDE BIDDULPH, D. A. GREENWOOD, L.E. HARRIS, WAYNE BINNS, M. L. MINER, and L. L. MADSEN... 

R. H. Biddulph, P. H. Plesch, A New Versatile Apparatus for Measuring the Rates of Fast Liquid-Phase Reactions, Chem. and Ind., 1959, 1482. 

The same form of rate equation and Mayo equation can also be obtained, though with different constants, on the assumption, made by Biddulph and Plesch when first discussing this work [77], that the chain breaking agent is the stannic chloride hydrate itself. Since this reaction too would be subject to deceleration by increasing viscosity, it is also compatible with the curves of Figure 9. 

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