摘要:
The invention relates to a method for oligomerizing an olefin feedstock using a catalyst that comprises at least one zeolite which has pore cavities containing 10 or 12 oxygen atoms (10MR or 12MR) and which is formed by means of a silica-based binder, said catalyst having been subjected to at least one thermal treatment step in a humid air flow containing 0 to 10 weight % of water, at a humid air feeding rate of 0.1 to 10 NL/h/g cat and a temperature ranging from 450 to 700°C for 1 to 10 hours, said thermal treatment step being carried out following the step in which the zeolite is formed by means of the silica-based binder.
摘要:
The invention relates to a method for oligomerizing an olefin feedstock using a catalyst that comprises at least one zeolite which has pore cavities containing 10 or 12 oxygen atoms (10MR or 12MR) and which is formed by means of an alumina-based binder, said catalyst having been subjected to at least one thermal treatment step in a humid air flow containing 1 to 20 weight % of water, at a humid air feeding rate of 0.1 to 10 NL/h/g cat and a temperature ranging from 450 to 700°C for 1 to 10 hours, said thermal treatment step being carried out following the step in which the zeolite is formed by means of the alumina-based binder.
摘要:
The invention relates to a novel material comprising at least one zeolite formed with a binding formulation comprising at least one hydraulic binder. The invention also relates to a process for preparing said material, comprising at least one step of mixing at least one powder of at least one zeolite with at least one powder of at least one hydraulic binder and at least one solvent, and a step of forming, preferably by pelleting or extrusion, the mixture obtained at the end of the mixing step.
摘要:
The invention concerns a method for preparing a porous inorganic material comprising at least the following steps: a) reacting a mixture comprising at least a precursor of the oxide of a metal X in solution and a precursor of the oxide of a metal Y at a temperature of between 30 and 70°C, X and Y being chosen, separately, from the group consisting of aluminium, cobalt, indium, molybdenum, nickel, silicon, titanium, zirconium, zinc, iron, copper, manganese, gallium, germanium, phosphorus, boron, vanadium, tin, lead, hafnium, niobium, yttrium, cerium, gadolinium, tantalum, tungsten, antimony, europium and neodymium; b) mixing the mixture obtained at the end of step a) at a temperature of between 80 and 150°C, the duration of mixing being adjusted to obtain a paste having a loss on ignition of between 20% by weight and 90% by weight after this step; c) shaping the porous inorganic material; steps a) and c) being carried out inside an extruder.
摘要:
La présente invention concerne des particules sphéroïdales d'alumine caractérisées par une surface spécifique B.E.T comprise entre 150 et 300 m 2 /g, un diamètre moyen de particule compris entre 1,2 et 3 mm et une dispersion des diamètres des particules exprimée par un écart type n'excédant pas 0,1, un volume poreux total mesuré par porosimétrie au mercure compris entre 0,50 et 0,85 mL/g, un taux de macroporosité au sein d'une particule inférieur à 30% et dans lesquelles la dispersion des diamètres des macropores exprimée par le ratio des diamètres D90/D50 n'excède pas 8. L'invention concerne aussi des procédés de préparation de telles particules ainsi que des catalyseurs comprenant de telles particules comme support et leur utilisation dans des procédés catalytiques de traitement d'hydrocarbures, notamment dans un procédé de reformage catalytique
标题翻译:PROCEDE DE DESHYDRATATION ISOMERISANTE D'UNE CHARGE ALCOOL PRIMAIRE SUBSTITUE EN位置2 PAR UN GROUP GROUP ALKYL SUR UN CATALYSEUR COMPRENANT UNE ZEOLITHE DE TYPE FER
摘要:
The invention relates to method of isomerizing dehydration of a primary alcohol substituted in position 2 by an alkyl group wherein the alcohol is heated to reaction temperature by indirect heat exchange then vaporized by mixing with a diluent effluent, where said diluted and vaporized alcohol is dehydrated in at least one dehydration reactor operating in the gas phase at an input temperature between 250°C and 375°C, a pressure between 0.2 MPa and 1 MPa and a PPH between 1 and 18 h -1 , in the presence of a catalyst comprising a zeolite comprising at least one series of channels whose opening is defined by a ring of 8 oxygen atoms (8MR) and a binder, wherein said catalyst is coked in-situ or ex-situ beforehand, such as to produce a dehydration effluent, where the latter is treated and separated into a diluent effluent, an olefin effluent and a heavy-hydrocarbon effluent.