Several alumina catalysts were prepared to investigate effects of catalyst preparation variables on pore structure, including sintering time and temperature, acid type, and fiber type and loading. Each catalyst was characterized with a porosimeter and sorptometer in terms of pore size distribution, average pore diameters, pore volumes, densities and surface area. Bimodal NiMo catalysts were effectively prepared without losing surface area by using a combined method of coextrusion and fiber incorporation.
[References]
Hiemenz PC, "Principles of Colloid and Surface Chemistry," 2nd ed., Marcel Dekker, Inc., New York, 1986
Voyutsky S, "Colloid Chemistry," pp. 256-278, MIR Publishers, Moscow, 1975
Belding WA, Warfield WC, "Controlling the Properties of Catalyst Substrates Using Alumina," Presented at the Materials and Engineering Science Division of AIChE Meeting, Cleveland, Ohio, Sept., 1982
Thomas AW, "Colloid Chemistry," pp. 161-164, McGraw-Hill Book Company, Inc., New York, 1945
Ternan M, Packwood RH, Buchanan RM, Parsons BI, Can. J. Chem. Eng., 60, 33, 1982
Marcelin G, Vogel RF, Swift HE, J. Catal., 83, 42, 1983
Jiratova K, Janacek L, Schneider P, "Influence of Aluminum Hydroxide Peptization of Physical Properties of Alumina Extrudates," edited by Poncelet, G., Grange, P. and Jacobs, P.A., Elsevier, New York, 1983