Device and method for preparing supported catalyst by spraying

A supported catalyst and catalyst carrier technology, applied in chemical instruments and methods, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve problems such as uniform distribution of metals, and achieve the effect of avoiding uneven color

CN107837825APending Publication Date: 2018-03-27XIAN CATALYST NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-03-27

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Abstract

The invention discloses a device for preparing a supported catalyst by spraying. The device comprises a pot-bellied glass tube and an oil bath pan, wherein the two ends of the pot-bellied glass tube are provided with openings, and a reaction chamber is arranged in the middle of the pot-bellied glass tube; the pot-bellied glass tube is arranged on the oil bath pan through a support, and the pot-bellied glass tube is connected with a motor through a transmission device; one end of the pot-bellied glass tube is connected with a watering pot, and a spray pipe of the watering pot extends into the reaction chamber of the pot-bellied glass tube; a nozzle is arranged on the spray pipe, and a first sealing plug is arranged between the spray pipe and the pot-bellied glass tube; the other end of thepot-bellied glass tube is connected with an L-shaped elbow pipe through a second sealing plug, and the pipe body of one end, away from the pot-bellied glass tube, of the L-shaped elbow pipe is sleevedwith a condensing device. The invention also discloses a method for preparing the supported catalyst by spraying by utilizing the device. The device provided by the invention has reasonable design and simple structure, can prepare the catalyst in which uniformly dispersed active components are dispersed on the surface of a carrier, and provides a novel solution for preparing the granular supported catalyst in a laboratory.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of supported catalysts, and in particular relates to a device and method for preparing supported catalysts by spraying. Background technique

[0002] The impregnation method is one of the most commonly used methods for preparing supported granular fixed-bed or fluidized-bed catalysts in the laboratory. The carrier is usually a particle with a certain geometric size, generally spherical and cylindrical, with a spherical size of 0.5-5mm and cylindrical The diameter is 1-6mm, and the length is 2-10mm. There are many commonly used carriers for fixed bed or fluidized bed, such as activated carbon, alumina, molecular sieve and silica. Generally, the catalyst prepared by the granular activated carbon carrier can hardly be seen to be uniform in appearance, because the prepared catalyst is usually black, which is the same color as the carrier. Carriers such as alumina, silica, and molecular sieves ar...

Examples

Embodiment 1

[0037] Such as figure 1 As shown, the present invention includes a big belly glass tube 1 and an oil bath 2, the two ends of the big belly glass tube 1 are open, and the middle part has a reaction chamber 1-1 for placing catalyst carrier particles, the big belly glass tube 1 The belly glass tube 1 is arranged on the oil bath 2 through a bracket 12, and the belly glass tube 1 is connected with a motor 10 for driving the belly glass tube 1 to rotate through a driver 11, and one end of the belly glass tube 1 Connect with the watering can 3 that is used to place the immersion liquid, the nozzle 4 of the watering can 3 stretches into the reaction chamber 1-1 of the big belly glass tube 1, the nozzle 5 is installed on the nozzle 4, and the nozzle 5 Located at the center of the reaction chamber 1-1, a first sealing plug 6 is arranged between the nozzle pipe 4 and the big-bellied glass tube 1, and the other end of the big-bellied glass tube 1 passes through the L-shaped elbow 8 The s...

Embodiment 2

[0047] Adopt the device of present embodiment 1 to be used for spraying and prepare the method for supported catalyst comprising the following steps:

[0048] Step 1, place the catalyst carrier particles in the reaction chamber 1-1 of the big-bellied glass tube 1, and place the prepared impregnating solution in the watering can 3 at the same time, then place the watering can 3 and the L-shaped elbow with the impregnating solution 8 are respectively assembled on the potted glass tube 1 through the first sealing plug 6 and the second sealing plug 7, and the watering pot 3 and the L-shaped elbow 8 are installed on the potted glass tube through the first sealing plug 6 and the second sealing plug 7 respectively. On both ends of the tube 1, the big belly glass tube 1 is installed on the oil bath 2 through the bracket 12, and the big belly glass tube 1 is connected with the motor 10 through the driver 11;

[0049] Step 2, turn on the oil bath 2, heat the carrier particles in the rea...