摘要:
Process for preparing a hydrotreating catalyst comprising of from 5 wt% to 50 wt% of molybdenum, of from 0.5 wt% to 20 wt% of nickel and of from 0 to 5 wt% of phosphorus, all based on total dry weight of catalyst, which process comprises (a) treating alumina carrier with molybdenum and nickel and of from 1 to 60 %wt of gluconic acid, based on weight of carrier, and optionally phosphorus, (b) optionally drying the treated carrier at a temperature of from 40 to 200 °C, and (c) calcining the treated and optionally dried carrier at a temperature of from 200 to 650 °C to obtain the calcined treated carrier.
摘要:
Process for preparing a hydrotreating catalyst comprising of from 5 wt% to 50 wt% of molybdenum, of from 0.5 wt% to 20 wt% of cobalt, and of from 0 to 5 wt% of phosphorus, all based on total dry weight of catalyst, which process comprises (a) treating a nickel containing carrier with molybdenum, cobalt and of from 1to 60 %wt of gluconic acid, based on weight of carrier, and optionally phosphorus, (b) optionally drying the treated carrier at a temperature of from 40 to 200 °C, and (c) calcining the treated and optionally dried carrier at a temperature of from 200 to 650 ºC to obtain the calcined treated carrier.
摘要:
The present invention discloses a novel mesoporous gold deposited oxidation catalyst of formula: XAu-M 0.1 Ce 0.85 Zr 0.05 O 2 wherein X = 0.01-10%, M is selected from Cu, Co or Mn and process for the preparation thereof by photodeposition method.
摘要:
A low density zeolite composition includes a zeolite in the amount of less than 80 wt% of total composition and a crystalline non-zeolite metal oxide-containing binder. The composition has a pore volume of at least 0.4 mL/g and an average mesopore diameter of 20-500 Å, and macroporosity with average pore diameter greater than 500 Å.
摘要:
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.
摘要:
The present invention concerns zeolite materials in the form of agglomerates comprising at least one mesoporous zeolite and having both the features of mesoporous zeolites, the properties linked to microporosity and the mechanical properties of zeolite agglomerates without a mesoporous zeolite. The invention also concerns the method for preparing said zeolite materials in the form of agglomerates.
摘要:
Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes the further conversion of the acetylene to a hydrocarbon stream having propylene. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is treated to convert acetylene to another hydrocarbon, and in particular olefins. The method according to certain aspects includes controlling the level of contaminants in the hydrocarbon stream.