摘要:
This invention relates to a process for the removal of catalyst particles from a hydrocarbon stream (14) derived from the reaction of synthesis gas (12) with a particulate Fischer Tropsch catalyst in a Fischer Tropsch reactor (10). The process includes a primary separation step (16) which makes use of a filter, wherein the filter has a pore size which is 70% to 95 of the average size of the particles of the Fischer Tropsch catalyst, thereby forming a primary filtered hydrocarbon stream (18) containing fine catalyst particles. The benefit of this selection of filter pore size is that it mitigates fines build-up on the filter of the primary separator. The primary filtered hydrocarbon stream (18) is then passed to a secondary separation step in a cross-flow filtration unit (20) which removes fine catalyst particles from the primary filtered hydrocarbon stream to provide a retenate (24) containing the catalyst fines, and permeate (22) containing a hydrocarbon product.
摘要:
A combined filtering process for recycling a precious metal from a Fischer-Tropsch synthetic product with the steps of: 1) after the product of a Fischer-Tropsch synthesis reaction is filtered by an inner filter, the product is introduced into a first filter buffer tank from an outlet on the upper part of a Fischer-Tropsch synthesis reactor, where a gas-phase product or a partially liquid-phase product filtered from the product by the first filter buffer tank is discharged from the top part, and where liquid-phase and solid-phase products discharged from the bottom part of the first filter buffer tank are introduced into a refining filter for product refinement; 2) the liquid-phase product that is mainly a catalyst slurry is introduced from the bottom part of the Fischer-Tropsch reactor into a dynamic filter for filtering, where the filtered liquid-phase product containing small particles of a spent catalyst and precious metal ions dissolved in the product is separated from the bottom part of the dynamic filter, introduced into a second filter buffer tank, and introduced from the bottom part of the second filter buffer tank into the refining filter for refinement; and, 3) a white clay cake is first formed on a filter plate in the refining filter, then, with respect to the product introduced into the refining filter, when the white clay cake is formed, a product refinement process is utilized for refinement processing of the product.
摘要:
The invention relates to a process for recovering Group VIB metals from a catalyst, in particular a spent bulk catalyst, comprising one or more Group VIB metals and one or more Group VIII metals. Further, the invention relates to a solid Group VIB metal compound obtainable by the process according to the invention having the general formula H 2 XO 4 , wherein X = W 1-y Mo y , wherein y is between 0 and 1 and to its use in a process for the manufacture of a fresh catalyst. The process comprises the steps of: a) oxidizing the one or more Group VIB metals to one or more Group VIB metal oxides; separating the one or more Group VIB metal oxides from the one or more Group VIII metals; dissolving the one or more Group VIB metal oxides in water to produce an aqueous solution of one or more Group VIB metal oxides; d) precipitating the one or more Group VIB metal oxides from the aqueous solution by adding alkaline earth metal (Group IIa) ions to the aqueous solution; e) optionally filtering and washing the precipitate; and f) transforming the precipitate by adding an acid to form a solid metal compound comprising one or more Group VIB metals.
摘要翻译:本发明涉及一种从催化剂中回收VIB族金属的方法,特别是废组分催化剂,其包含一种或多种VIB族金属和一种或多种VIII族金属。 此外,本发明涉及通过根据本发明的方法获得的具有通式H 2 XO 4的固体VIB族金属化合物,其中X = W 1-y Mo y,其中y在0和1之间,并且其使用 在制造新鲜催化剂的过程中。 该方法包括以下步骤:a)将一种或多种VIB族金属氧化成一种或多种VIB族金属氧化物; 从一种或多种VIII族金属分离一种或多种VIB族金属氧化物; 将一种或多种VIB族金属氧化物溶解在水中以产生一种或多种VIB族金属氧化物的水溶液; d)通过向该水溶液中加入碱土金属(IIa)族离子,从水溶液中沉淀出一种或多种VIB族金属氧化物; e)任选地过滤和洗涤沉淀物; 和f)通过加入酸形成包含一种或多种VIB族金属的固体金属化合物来转化沉淀物。
摘要:
The instant invention discloses a method for the valorization of spent catalyst from hydrocarbon processing slurry reactors as well as slurry flakes.
摘要:
The invention relates to a process for recovering Group VIB metals from a catalyst, in particular a spent bulk catalyst, comprising one or more Group VIB metals and one or more Group VIII metals. Further, the invention relates to a solid Group VIB metal compound obtainable by the process according to the invention having the general formula H 2 XO 4 , wherein X = W 1-y Mo y , wherein y is between 0 and 1 and to its use in a process for the manufacture of a fresh catalyst. The process comprises the steps of: a) oxidizing the one or more Group VIB metals to one or more Group VIB metal oxides; separating the one or more Group VIB metal oxides from the one or more Group VIII metals; dissolving the one or more Group VIB metal oxides in water to produce an aqueous solution of one or more Group VIB metal oxides; d) precipitating the one or more Group VIB metal oxides from the aqueous solution by adding alkaline earth metal (Group IIa) ions to the aqueous solution; e) optionally filtering and washing the precipitate; and f) transforming the precipitate by adding an acid to form a solid metal compound comprising one or more Group VIB metals.
摘要:
This invention relates to a process for the removal of catalyst particles from a hydrocarbon stream (14) derived from the reaction of synthesis gas (12) with a particulate Fischer Tropsch catalyst in a Fischer Tropsch reactor (10). The process includes a primary separation step (16) which makes use of a filter, wherein the filter has a pore size which is 70% to 95 of the average size of the particles of the Fischer Tropsch catalyst, thereby forming a primary filtered hydrocarbon stream (18) containing fine catalyst particles. The benefit of this selection of filter pore size is that it mitigates fines build-up on the filter of the primary separator. The primary filtered hydrocarbon stream (18) is then passed to a secondary separation step in a cross-flow filtration unit (20) which removes fine catalyst particles from the primary filtered hydrocarbon stream to provide a retenate (24) containing the catalyst fines, and permeate (22) containing a hydrocarbon product.
摘要:
A process removing ionic liquid from a process stream is described. The process stream is introduced into a coalescer to form an ionic liquid stream and a first treated process stream which has less ionic liquid than the process stream. The first treated process stream is introduced into a separator to form a second treated process stream. The second treated process stream has less ionic liquid than the first treated process stream. The separator is selected from a filtration zone comprising sand or carbon, an adsorption zone, a scrubbing zone, an electrostatic separation zone, or combinations thereof.
摘要:
The invention relates to a process for recovering Group VIB metals from a catalyst, in particular a spent bulk catalyst, comprising one or more Group VIB metals and one or more Group VIII metals. Further, the invention relates to a solid Group VIB metal compound obtainable by the process according to the invention having the general formula H2XO4, wherein X = W1-yMoy, wherein y is between O and 1 and to its use in a process for the manufacture of a fresh catalyst. The process comprises the steps of: a) oxidizing the one or more Group VIB metals to one or more Group VIB metal oxides; b) separating the one or more Group VIB metal oxides from the one or more Group VIII metals; c) dissolving the one or more Group VIB metal oxides in water to produce an aqueous solution of one or more Group VIB metal oxides; d) precipitating the one or more Group VIB metal oxides from the aqueous solution by adding alkaline earth metal (Group IIa) ions to the aqueous solution; e) optionally filtering and washing the precipitate; and f) transforming the precipitate by adding an acid to form a solid metal compound comprising one or more Group VIB metals.