Patent
Hydrotreating process employing a three-stage catalyst system wherein a titanium compound is employed in the second stage
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TLDR
In this paper, a multi-catalyst hydrotreating of a residual oil-containing feedstream is carried out in a multiscale multi-caterboard environment, in which the feed stream is first contacted with a catalyst bed which comprises of alumina, cobalt, molybdenum, titanium and nickel.Abstract:
The catalytic hydrotreating of a residual oil-containing feedstream is carried out in a multi-catalyst bed in which the feedstream is first contacted with a catalyst bed which comprises of alumina, cobalt, molybdenum and nickel. The feedstream is then contacted with a second catalyst bed which contains a catalyst comprising alumina to which molybdenum, titanium and nickel have been added, followed by a third catalyst bed which contains a catalyst comprising alumina to which molybdenum and nickel have been added.read more
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Two stage hydrodesulfurization process
TL;DR: In this paper, a process for hydrodesulfurizing naphtha feedstreams where the reactor inlet temperature is below the dew point of the feedstock at the inlet so that the Naphtha will completely vaporize within the catalyst bed is described.
Patent
Process for hydrodesulfurization of diesel gas oil
TL;DR: In this article, a process for hydrodesulfurization of a sulfur-containing petroleum hydrocarbon diesel gas oil is described, in which the distillation process is used to separate the diesel gas feedstock into light and heavy fractions.
Patent
Hydroprocessing catalyst and use thereof
TL;DR: In this paper, the authors proposed a catalysts for the use of heavy hydrocarbon feedstocks in an ebullated bed process, particularly a feedstock at least 50 wt.% of which boils above 538°C (1,000°F).
Patent
Preparation of hydrotreating catalyst from spent catalyst
Lloyd E. Gardner,Dennis R. Kidd +1 more
TL;DR: In this article, an active hydrotreating catalyst composition is prepared by a process comprising the steps of (a) grinding a spent hydoretreating catalyst containing carbonaceous deposits, (b) mixing the ground spent catalyst with an alumina-containing material (preferably alumina), and (c) shaping and extruding the mixture of ground spent spent catalyst and alumina containing material and (d) heating the shaped mixture so as to burn off carbonaceous residues.
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Process for demetalation and desulfurization of petroleum oils
TL;DR: In this article, the authors proposed a method to remove metal and sulfur contaminants from residual oil fractions by catalytic contact with an improved catalyst comprising the oxides or sulfides of a Group VIB metal and an iron group metal supported on an alumina that contains dispersed Delta and/or Theta phase alumina.
Patent
Process for demetallation and desulfurization of heavy hydrocarbons
TL;DR: In this paper, an improved multi-stage process for the hydroconversion of heavy hydrocarbon feedstocks containing asphaltenes, metals and sulfur compounds is described, which is characterized by the use of a relatively inexpensive demetallation catalyst in a first reaction zone comprising a Group VIB and/or a Group VIII metal deposed on a high macropore volume inorganic support.
Patent
Three-catalyst process for the hydrotreating of heavy hydrocarbon streams
TL;DR: In this paper, a process for hydrotreating a heavy hydrocarbon stream containing metals, asphaltenes, nitrogen compounds, and sulfur compounds to reduce the contents of these contaminants is described.
Patent
Catalytic hydroconversion of residual stocks
TL;DR: In this paper, the authors improved conversion, product distribution, product quality and system operability by mixing with the heavy charge a substantial proportion of an aromatic light distillate oil (light gas oil) of high nitrogen content.
Patent
Hydrodesulfurization of residua
TL;DR: In this article, a process for the hydrodesulfurization of residua is described, in which a residuum is contacted with a high activity maintenance catalyst comprising an oxide or sulfide of cobalt or nickel and a molybdenum or tungsten deposited on a silica-stabilized alumina support, having a maximum surface area in pores having 30 to 80 A diameters.