Disclosed in certain embodiments is a sulfur tolerant catalytic system that includes a catalytic material coated onto a substrate.

Methods of preparing a sinter-resistant catalyst include forming a dual coating system. A surface of a particulate catalyst support contacts a first liquid precursor including a metal salt with an element selected from the group consisting of: aluminum (Al), cerium (Ce), zirconium (Zr), titanium (Ti), silicon (Si), magnesium (Mg), zinc (Zn), and combinations thereof. The first liquid precursor precipitates or is adsorbed as an ion on a portion of the surface forming a first coating including a porous metal oxide on the surface. The surface may be contacted with a second liquid precursor including a metal oxide sol including a metal selected from the group consisting of: aluminum (Al), cerium (Ce), zirconium (Zr), iron (Fe), titanium (Ti), silicon (Si), and combinations thereof. A second coating is formed from the second liquid precursor on a portion of the surface to create the sinter-resistant catalyst system.

Copper-containing, multimetallic catalysts with either a zirconia or carbon support are described which have improved utility for the hydrogenolysis of a glycerol or glycerol-containing feedstock to provide a biobased 1,2-propanediol product. specially, improved carbon-supported examples of such catalysts are described for this reaction as well as for other processes wherein hydrogen is used, with methods for maintaining the activity of these catalysts. Related treatment methods in the preparation of these improved catalysts enable the use of carbons with a desired mechanical strength but which previously lacked activity, for example, for the conversion of a glycerol or glycerol-containing feed to produce 1,2-propanediol, so that copper-containing, multi-metallic catalysts may be employed for making a biobased propylene glycol using carbon supports that previously would have not been suitable.

A method for converting lower alkanes to higher liquid products, comprising reacting one or more C.sub.2 to C.sub.12 alkanes with a bifunctional catalyst comprising platinum (Pt) or palladium (Pd) and at least one other metal (M) to provide an alloy (Pt-M or Pd-M) containing at least 0.1 wt % of the platinum (Pt) or palladium (Pd), based on a total weight of the catalyst; a silica or alumina support; and an acidic zeolite, at a temperature of about 350 C. to 700 C. to provide a liquid product having a boiling point of 38 C. to 205 C.

The present disclosure relates to a reforming catalyst and a process for preparing the same. The acidic functionality of the catalyst is suppressed by using a chloride free alumina and coating the chloride free alumina with Group V B metal oxide in the catalyst, which helps in minimizing the cracking reactions and achieving higher selectivity for liquid hydrocarbons and aromatic hydrocarbons.

A method of preparing a hydrogenation catalyst, for example, a phthalate hydrogenation catalyst, comprising contacting a silica support having a median pore size of at least about 10 nm with a silylating agent to form an at least partially coated silica support, calcining said coated silica support to form a treated silica support, and depositing a noble metal, preferably ruthenium, on the treated silica support, and optionally contacting the treated silica support with an optional chelating agent to form the hydrogenation catalyst; a hydrogenation catalyst prepared by that method; and a method of hydrogenating unsaturated hydrocarbons, such as phthalates, in which an unsaturated hydrocarbon is contacted with hydrogen gas in the presence of the hydrogenation catalyst of the invention.

A method for producing hydrogen in a steam methane reformer is disclosed. The method provides for the steps of feeding a mixture of fuel and air to a steam methane reformer; feeding a mixture of steam and hydrocarbons to the steam methane reformer; contacting the steam and hydrocarbons with a metal monolith supported catalyst; providing an electric current to the metal monolith supported catalyst; and recovering the hydrogen. The electric current applied to the metal monolith supported catalyst will encounter electrical resistance which will create heat. This heat can supplement that provided for by the reaction of the fuel and air allowing for a reduction in fueling costs as well as treatment costs of the resultant flue gas.

A fuel synthesis catalyst of an embodiment for hydrogenating a gas includes at least one selected from the group consisting of; carbon dioxide and carbon monoxide, the catalyst comprising, a base material containing at least one oxide selected from the group consisting of; Al.sub.2O.sub.3, MgO, TiO.sub.2, and SiO.sub.2, first metals containing at least one metal selected from the group consisting of; Ni, Co, Fe, and Cu and brought into contact with the base material, and a first oxide containing at least one selected from the group consisting of; CeO.sub.2, ZrO.sub.2, TiO.sub.2, and SiO.sub.2 and having an interface with each of the first metals and the base material. The first metals exist on an outer surface of the base material, and on a surface of the base material in fine pores having opening ends on the outer surface of the base material and inside the base material. The first metals and the first oxide exist in the fine pores. The first metals have interfaces with the base material in the fine pores. The first metals exist inside the base material.

A method of preparing a hydrogenation catalyst, for example, a phthalate hydrogenation catalyst, comprising contacting a silica support having a median pore size of at least about 10 nm with a silylating agent to form an at least partially coated silica support, calcining said coated silica support to form a treated silica support, and depositing a noble metal, preferably ruthenium, on the treated silica support, and optionally contacting the treated silica support with an optional chelating agent to form the hydrogenation catalyst; a hydrogenation catalyst prepared by that method; and a method of hydrogenating unsaturated hydrocarbons, such as phthalates, in which an unsaturated hydrocarbon is contacted with hydrogen gas in the presence of the hydrogenation catalyst of the invention.

The present invention relates to a process for preparing a nickel-based catalyst promoted with aluminium compounds with increased resistance to thermal deactivation and to the nickel-based catalyst thus obtained. In addition, the present invention relates to the use of said catalyst in a steam reforming process starting from hydrocarbons for producing hydrogen or synthesis gas.