Abstract:
The invention relates to a self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock and to a method for preparing the catalyst. The self-supported MMS catalyst consists essentially of molybdenum sulfide and tungsten sulfide, wherein the catalyst contains at least 0.1 mol % of Mo and at least 0.1 mol % of W, on a transition metal basis.
Abstract:
An apparatus and process for passivating catalysts wherein an inert gas is used to administer a precise, measurable amount of passivating agent to a catalyst in a substantially safer manner than conventional means. The inventive apparatus at least includes a first container comprising at least one inert gas, a second container comprising at least one passivating agent, and a reactor comprising at least one catalyst, the first container, second container, and reactor being fluidly connected by a plurality of conduits. The inventive process at least includes pressurizing a first container with an inert gas, filling a second container with passivating agent, providing a reactor containing a passivatable catalyst, mixing the inert with the passivating agent, forming a mixture of passivating agent and inert gas, and introducing the mixture of passivating agent and inert gas into the reactor.
Abstract:
Sorbent bodies comprising activated carbon, processes for making them, and methods of using them. The sorbent bodies can be used to remove toxic elements from a fluid, such as from a gas stream. For instance, the sorbent bodies may be used to remove elemental mercury or mercury in an oxidized state from a coal combustion flue gas.
Abstract:
The present invention relates to a method of making a chemical compound comprising nickel, aluminum, oxygen and sulfur having a general formula Ni2xAl2O2x+3−zSz, wherein 0.5≦x≦3 and 0≦z≦2x. The material is effective for the removal of S-compounds from gaseous streams, effective for catalyzing a water gas shift reaction and suppresses the formation of carbon monoxide and hydrogen under conditions where a water gas shift reaction is catalyzed.
Abstract:
Transition Metal Sulfides (TMS), such as molybdenum disulfide (MoS2), are the petroleum industry's “workhorse” catalysts for upgrading heavy petroleum feedstocks and removing sulfur, nitrogen and other pollutants from fuels. We have developed an improved synthesis technique to produce SLTMS catalysts, such as molybdenum disulfide, with potentially greater activity and specificity than those currently available. Applications for this technology include heavy feed upgrading, in-situ catalysis, bio-fuel conversion and coal liquefaction.
Abstract:
The present invention relates generally to ultradispersed catalyst compositions and methods for preparing such catalysts. In particular, the invention provides catalyst composition of the general formula: BxMyS[(1.1 to 4.6)y+(0.5 to 4)x] where B is a group VIIIB non-noble metal and M is a group VI B metal and 0.05≦y/x≦15.
Abstract translation:本发明一般涉及超分散催化剂组合物和制备这种催化剂的方法。 特别地,本发明提供了以下通式的催化剂组合物:BxMyS [(1.1-4.6)y +(0.5-4)x]其中B是ⅧB族非贵金属,M是ⅥB族金属,0.05& y / x≦̸ 15。
Abstract:
The present invention relates to a method of making a chemical compound comprising nickel, aluminum, oxygen and sulfur having a general formula Ni2xAl2O2x+3−zSz, wherein 0.5≦x≦3 and 0≦z≦2x. The material is effective for the removal of S-compounds from gaseous streams, effective for catalyzing a water gas shift reaction and suppresses the formation of carbon monoxide and hydrogen under conditions where a water gas shift reaction is catalyzed.
Abstract:
There is provided an oxygen storage/release material using a rare earth oxysulfate or oxysulfide, which has a high oxygen storage/release capacity even at lower temperatures. The oxygen storage/release material of the present invention comprises a compound consisting of Pr2O2SO4 and/or Pr2O2S and at least one metal selected from the group consisting of Pt, Rh and Fe supported thereon.
Abstract translation:提供了使用稀土氧硫酸盐或氧硫化物的氧气储存/释放材料,即使在较低温度下也具有高的储氧/释放能力。 本发明的储氧/释放材料包括由Pr 2 O 2 SO 4和/或Pr 2 O 2 S组成的化合物和至少一种选自Pt,Rh和Fe所载的金属。
Abstract:
Novel bulk tri-metallic catalysts for use in the hydroprocessing of hydrocarbon feeds, as well as a method for preparing such catalysts. The catalysts are prepared from a catalyst precursor containing an organic agent.