Large Pore Alumina

Earlier the authors reported preparation conditions for an alumina material which contained large diameter macropores (0.1-100 [mu]). The preparation variable that caused the formation of the uncommonly large macropores was the large acid/alumina ratios which were very much greater than the ones use...

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Veröffentlicht in:	Journal of catalysis 1994-04, Vol.146 (2), p.598-600
1. Verfasser:	Ternan, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	360201 - Ceramics, Cermets, & Refractories- Preparation & Fabrication 360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies ALUMINIUM COMPOUNDS ALUMINIUM OXIDES Applied sciences CALCINATION CHALCOGENIDES CHEMICAL PREPARATION CHEMICAL REACTIONS Crude oil, natural gas and petroleum products DECOMPOSITION Energy Exact sciences and technology Fuels MATERIALS SCIENCE MICROSTRUCTURE OXIDES OXYGEN COMPOUNDS PORE STRUCTURE Processing of crude oil and oils from shales and tar sands. Processes. Equipment. Refinery and treatment units PYROLYSIS SYNTHESIS TEMPERATURE DEPENDENCE TEMPERATURE RANGE TEMPERATURE RANGE 0400-1000 K TEMPERATURE RANGE 1000-4000 K THERMOCHEMICAL PROCESSES
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Beschreibung
Zusammenfassung:	Earlier the authors reported preparation conditions for an alumina material which contained large diameter macropores (0.1-100 [mu]). The preparation variable that caused the formation of the uncommonly large macropores was the large acid/alumina ratios which were very much greater than the ones used in the preparation of conventional porous aluminas. The alumina material had large BET surface areas (200 m[sup 2]/g) and small mercury porosimetry surface areas (1 m[sup 2]/g). This indicated that micropores (d[sub MIP]
ISSN:	0021-9517 1090-2694
DOI:	10.1006/jcat.1994.1101