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I&EC PROCESS DESIGN AND DEVELOPMENT

The Probability of Coalescence in Granulation Kinetics

V O L . 14, NO. 3, JULY 1975

Norio Ouchiyama

Editorial Headquarters 1155 16th St., N.W. Washington, D. C. 20036 Phone 202-872-4600 Teletype 710-8220151. Cable JIECHEM

Cation-Exchange Column Behavior in a Desalination Process with Régénérant Recovery

Editor: HUGH M. HULBURT Associate Editor: JOHN C. SLATTERY Managing Editor: Katherine 1. Biggs Editorial Processing Department 20th and Northampton Sts. Easton, Pennsylvania 18042 Associate Editor: Edward A. Borger

and Tatsuo Tanaka*

Derk J. Vermeer, Scott Lynn, * and Theodore Vermeulen

Pradeep V. Patel and John B. Butt*

Published by the AMERICAN CHEMICAL SOCIETY 1155 16th Street, N.W. Washington. D C. 20036 BOOKS AND JOURNALS DIVISION John Κ Crum Director Virginia E. Stewart Assistant to the Director

The Kinetics of Gasification of Carbon Contained in Coal Minerals at Atmospheric Pressure

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298

Activity Coefficients from the Wilson Equation Saral K. Ghosh* and Sawaran J. Chopra

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290

Multicomponent Diffusion in Porous Catalysts

Advisory Board: D. M. Himmelblau, J. E. Longfield, W. C. Schreiner

Charles R. Bertsch Head. Editorial Processing Department D. H. Michael Bowen Head, Journals Department Bacil Guiley Head, Graphics and Production Department Seldon W. Terrant Head. Research and Development Department

286

G. A. Jensen

304

308

Effect of Holdup Incomplete Catalyst Wetting and Backmixing during Hydroprocessing in Trickle Bed Reactors J. A. Paraskos, J. A. Frayer, and Y. T. Shah*

315

Decomposition of Calcium Sulfate in a Two-Zone Reactor William M. Swift and Thomas D. Wheelock*

323

Nonisothermal Desorption by Gas Purge of Single Solutes in Fixed-Bed Adsorbers. I. Equilibrium Theory Diran Basmadjian,* K. Dan Ha, and Chuen-Yong Pan

328

Nonisothermal Desorption by Gas Purge of Single Solutes from Fixed-Bed Adsorbers. II. Experimental Verification of Equilibrium Theory Diran Basmadjian,* David P. Proulx

K. Dan Ha, and 340

ICATIONS

cowir

Photochemically Induced Oxidation of Refractory Organics with Hydrogen Peroxide Edward

Koubek

Correction

348 350

• Supplementary material for this paper is available separately, in photocopy or microfiche form. Ordering information is given in the paper. * In papers with more than one author, the asterisk indicates the name of the author to whom inquiries about the paper should be addressed.