B01J23/85

Method for manufacturing catalysts with reduced attrition
12370531 · 2025-07-29 · ·

The present invention discloses an inventive method for manufacturing a catalyst using alloy granules having a high-Ni content. The inventive method may include providing alloy granules comprising aluminum and nickel, and treating the alloy granules with an alkaline solution to form the catalyst. A content of the nickel in the alloy granules may be within a range of about 43 wt % to about 60 wt %. The alloy granules may have effective diameters within a range of about 1 mm to about 10 mm. The catalyst may have an attrition value of less than about 7.0%.

High activity hydrotreating catalysts and processes using same

A supported catalyst for hydroprocessing, hydrotreating or hydrocracking hydrocarbon feedstocks, the supported catalyst comprising at least one metal from Group 6 and at least one metal from Groups 8, 9, or 10 of the Periodic Table of the Elements, and optionally comprising phosphorous. The Group 6 metal comprises about 30 to about 45 wt. % and the total of Group 6 and Group 8, 9, or 10 or mixtures thereof metal components comprise about 35 to about 55 wt. %, calculated as oxides and based on the total weight of the catalyst composition. The metals, and phosphorous when present, are carried on and/or within a porous inorganic oxide carrier or support, the support prior to incorporation of the metals and phosphorus, having a total pore volume (TPV) of about 0.8 cc/g to about 1.5 cc/g and comprising a defined pore size distribution and wherein the supported catalyst comprises a defined pore size distribution.

Nitrogen-phosphorus-modified granular carbon-supported bimetallic catalyst, preparation method therefor and use thereof

Provided are a nitrogen-phosphorus-modified granular carbon-supported bimetallic catalyst, a preparation method thereof and the use thereof. The catalyst comprises a nitrogen-phosphorus-modified carbon carrier and metal particles supported on the carbon carrier. The metal particles include first metal elementary substance particles, second metal elementary substance particles and bimetallic alloy phase particles. The percentage of the bimetallic alloy phase particles in the metal particles is 80%, and at least 90% of the alloy phase particles have a size of 1 nm to 20 nm. The catalyst has advantages such as a high proportion of alloy phase particles, a uniform particle size distribution, a high metal utilization rate, low costs, high stability and a high catalytic activity.

Process and catalyst system for conversion of C6 aromatics to higher aromatics

A process for the upgrading of hydrocarbon streams, i.e., processing any hydrocarbon feed streams rich in benzene and sulphur compounds. The process for simultaneous hydrodesulfurization and benzene conversion to higher alkylated aromatic molecules (C.sub.7 to C.sub.10 aromatics), without need of prior treatment like distillation, or sulfur removal. The hydrocarbon feed streams are processed over sulfided metal catalyst impregnated on acid support simultaneously desulfurizes and alkylates the benzene molecules.

Perovskite compound, a catalyst comprising the same, and an electrochemical device comprising the same

A perovskite compound having a cubic perovskite structure, high catalytic activity in oxygen reduction and evolution reactions, and excellent durability is provided. The perovskite compound is represented by the following Chemical Formula 1:
(A.sub.aA.sub.1-a).sub.(B.sub.bB.sub.1-b).sub.O.sub.3-(Chemical Formula 1) in Chemical Formula 1 A is Ba, A is one or more selected from the group consisting of lanthanoid elements, Ag, Ca, and Sr, B is Co. B is one or more selected from the group consisting of Ta, Nb, V, Sc, Y, Mo, W, Zr, Hf, and Ce, a is a real number greater than 0.9 and 1 or less, b is a real number greater than 0.5 and less than 0.9. and real numbers of 0.9 to 1.1. The perovskite compound can be used as a catalyst of electrochemical devices, particularly as a fuel cell catalyst.