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Method for continuously preparing naphtha reforming catalyst

A reforming catalyst and catalyst technology, applied in the direction of catalytic reforming of naphtha, reforming naphtha, chemical instruments and methods, etc., can solve the problems of unfavorable industrial production, many manual operations, high energy consumption, etc., and achieve manpower saving Operation steps, reduction of cooling and reheating steps, effect of energy consumption reduction

Active Publication Date: 2010-11-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In summary, the preparation of the reforming catalyst by the above-mentioned method is mainly to improve the formula. The preparation process of the catalyst proposes that after impregnating the metal each time, it must be dried and roasted; Halogen adjustment, reduction and other steps, but the steps are all completed intermittently, and the intermittent operation steps require a lot of manual operations, high labor intensity, high energy consumption and are not conducive to industrial production

Method used

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  • Method for continuously preparing naphtha reforming catalyst
  • Method for continuously preparing naphtha reforming catalyst
  • Method for continuously preparing naphtha reforming catalyst

Examples

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example 1

[0061] The catalyst active components were impregnated as follows. Carrier properties: Gama alumina with a specific surface area of ​​185m 2 / g, the pore volume is 0.6ml / g, and the bead diameter is 1.9mm. Each batch of carrier feed is 300 kilograms (dry basis), in the impregnating solution configuration tank, add the 2.2 mass % hydrochloric acid and 0.84 kilograms of platinum (H 2 PtCl 6 Solution) 450 kilograms of aqueous solution, stir stand-by. Take 300 kg (dry basis) carrier and add 3m 3 In the dipping tank, the dipping liquid is added into the upper, middle and lower three ways at the same time. After the dipping solution is all in, keep the solution circulating for 1 hour, then let the solution sit for 4 hours. Drain the soaking liquid, dry the reforming catalyst wet ball at 180°C through a fluidized bed, and put it into the silo.

[0062] use figure 1 In the flow process, each zone is arranged from high to low, and the catalyst relies on the gravity of the particl...

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Abstract

The invention discloses a method for continuously preparing a naphtha reforming catalyst, which comprises a step of treating a reforming catalyst impregnated with metallic active ingredients in a pretreatment area, a halogen content adjusting area, a roasting area, an air displacement area, a catalyst reduction area and a reducing gas displacement area continuously in turn. The method can continuously perform subsequent treatment on the catalyst impregnated with the active ingredients, save manual operating steps, reduce energy loss in unit operation and reduce energy consumption of the wholeoperating process.

Description

technical field [0001] The invention relates to a preparation method of a hydrocarbon conversion catalyst, specifically, a preparation method of a naphtha reforming catalyst. Background technique [0002] Catalytic reforming is one of the important production processes in petroleum processing, and its main purpose is to produce high-octane gasoline, aromatics with a wide range of uses and cheap hydrogen. The reforming reaction requires bifunctional catalysts with isomerization acidic function and hydrogenation-dehydrogenation function. The acidic function is generally provided by porous acidic inorganic oxides, such as alumina supports and halogens, and the hydrogenation-dehydrogenation function is provided by Group VIII metals. In addition, other metals, such as Sn or Re, are often used to modify the above two functions. Most commonly used reforming catalysts include platinum group metals, Re or IVA group metals, such as Pt-Sn / Al 2 o 3 For continuous regeneration of bim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/00B01J37/18B01J23/42B01J23/62B01J23/656C10G35/06C10G35/085C10G35/09
Inventor 马爱增潘锦程任坚强杨森年
Owner CHINA PETROLEUM & CHEM CORP