HYDRODESULFURIZATION OF RESIDUE OILS OVER NIMO/ALUMINA-ALUMINUM BORATE CATALYSTS - EFFECT OF BORIA CONTENT

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Title:	HYDRODESULFURIZATION OF RESIDUE OILS OVER NIMO/ALUMINA-ALUMINUM BORATE CATALYSTS - EFFECT OF BORIA CONTENT
Authors:	CHEN,YW;TSAI,MC;LI,CP
Contributors:	化學工程與材料工程學系
Keywords:	TRICKLE BED REACTOR;HYDROTREATING CATALYSTS;BORATE CATALYSTS;MOLYBDENUM;HYDRODENITROGENATION;HYDROGENATION;PHOSPHORUS;STABILITY;ZEOLITES;COBALT
Date:	1994
Issue Date:	2010-06-29 17:33:54 (UTC+8)
Publisher:	中央大學
Abstract:	A series of alumina-aluminum borates (AAB) with various boria contents were prepared by a coprecipitation technique. They were characterized with respect to surface area, pore volume, and pore size distribution. The temperature-programmed-reduction (TPR) method was used to monitor molybdenum oxide-support interaction. The results showed that both the T-max and hydrogen consumption of low-temperature-reduction peak increase with increasing B2O3 content. Hydrodesulfurization of heavy residue oils over NiMo/AAB catalysts was carried out in a trickle bed reactor at 663 K and 7.6 MPa. The results revealed that these catalysts are much more active than the conventional NiMo/Al2O3 catalysts. The dispersion of active sulfide phase as well as the hydrogenation ability of NiMo/Al2O3 catalyst is increased by the incorporation of adequate boria content. An optimum B2O3 content which gives the highest activity was found in the vicinity of 4 wt %.
Relation:	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

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