CN208878602U - A kind of device preparing metallic catalyst - Google Patents

A kind of device preparing metallic catalyst Download PDF

Info

Publication number
CN208878602U
CN208878602U CN201821063321.6U CN201821063321U CN208878602U CN 208878602 U CN208878602 U CN 208878602U CN 201821063321 U CN201821063321 U CN 201821063321U CN 208878602 U CN208878602 U CN 208878602U
Authority
CN
China
Prior art keywords
liquid
packed bed
metallic catalyst
carrier
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201821063321.6U
Other languages
Chinese (zh)
Inventor
刘有智
郭强
祁贵生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North University of China
Original Assignee
North University of China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by North University of China filed Critical North University of China
Priority to CN201821063321.6U priority Critical patent/CN208878602U/en
Application granted granted Critical
Publication of CN208878602U publication Critical patent/CN208878602U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Catalysts (AREA)

Abstract

A kind of device preparing metallic catalyst, belong to chemical engineering of materials preparation technical field, it can solve the problems, such as that the existing Catalyst Preparation Impregnation time is long, dipping content is low and non-uniform, technique includes impregnating and activating two processes, and two processes are completed in cross_flow rotating packed bed.Dipping process is mainly the loading process of metal ion solution and carrier, and activation process is drying activation process of the impregnated carrier in environment of high temperature gas.Whole device includes cross_flow rotating packed bed, air heating apparatus.Dipping and activation process are completed in same equipment, realize preparation integration.The utility model can increase the load capacity of carrier, shorten activation time, simplify preparation process, and prepared catalyst load capacity is uniformly dispersed.Entire technique is not required to segment processing, improves production efficiency, is more suitable for producing in enormous quantities, effectively improves production efficiency, reduce operating cost.

Description

A kind of device preparing metallic catalyst
Technical field
The utility model belongs to chemical engineering of materials preparation technical field, and in particular to a kind of device for preparing metallic catalyst.
Background technique
Volatile organic compounds (VOCs) discharge amount in China's industry and city increasingly increases, and VOCs gas has strong Smell and toxic, Long Term Contact can be detrimental to health, cause various lesions.In addition, the gas can also cause atmosphere Secondary pollution causes mist the study found that VOCs gas is the important presoma that Tropospheric ozone and secondary organic aerosol are formed Haze pollutes atmosphere.Under the increasingly strict trend of environmental protection, the improvement of VOCs gas has become extremely urgent engineering.
Common VOCs purification techniques has absorption method, absorption process and combustion method etc..Absorption method is big due to having treating capacity, can Organic solvent is recycled, operating cost is low, becomes industrial common method at present, but it is just for the VOCs gas of low concentration Body, high concentrations of gas breach the absorption limit, and polluted gas cannot be effectively treated.There are secondary pollution, industrial productions for absorption process In also not use.Combustion method is a kind of destructive processing method, and final product is carbon dioxide and water, and initiation temperature is low, Consuming little energy, the cycle of operation is longer, becomes one of most effective purification process.Common combustion method has thermodynamics to burn and be catalyzed Burning, catalysis burning carry out at a lower temperature, save production and operating cost, are commonly used by industry.Catalytic combustion technology Need to be by catalyst by VOCs gas oxygenolysis, organic exhaust gas is oxidized to carbon dioxide and water.Being catalyzed the key reacted is The preparation of catalyst, is influenced by impregnation concentrations and activation temperature.
Industrial catalyst is made of active constituent, auxiliary agent and carrier.Pattern and the dispersion degree influence of activating component are urged Agent activity, active component have two class of noble metal and transition metal, and transition-metal catalyst price is relatively low, there is good urge Change performance, to be commonly used at present.Active component is loaded on carrier by the method for the common dipping of industry, leans on common molecular active force Active component is adsorbed to surface, that there are dip times is long for this method, dipping content is low and non-uniform disadvantage.Catalyst Activation process generallys use baking oven or the method for fluidized bed heating is realized, be easy to cause the heat affected zone of catalyst uneven.This Outside, in industrial production, two processes of dipping and activation do not carry out in same equipment and process, cause labor intensity mass production The problem of low efficiency.
Cross_flow rotating packed bed is a kind of a kind of novel device for capableing of fortifier system interphase mass transfer, has been widely applied Microcosmic mixing in terms of gas-liquid, liquid liquid.In high-gravity rotating bed, liquid can be separated into drop, brin and liquid film, with it is anti- When should be in contact, increases object and be in contact area, strengthen reaction mass transfer.In Elevated Gravity, reaction medium is in high speed rotation State, dispersion degree is extremely strong, is applied to dipping and activation process, can effectively improve catalyst performance.In addition, being set using same It is standby to be impregnated and activated, it realizes two integrated processes, shortens preparation time, reduce production cost.
Summary of the invention
The utility model is long for the existing Catalyst Preparation Impregnation time, dipping content is low and non-uniform problem, provides A kind of device preparing metallic catalyst.
The utility model adopts the following technical solution:
A kind of device preparing metallic catalyst, including cross_flow rotating packed bed, roots blower and reservoir, wherein The bottom of cross_flow rotating packed bed is respectively equipped with gas feed and liquid outlet, and side wall is equipped with gas vent, the center at top Equipped with liquid-inlet, the bottom of cross_flow rotating packed bed is equipped with the bearing being connected to motor, and liquid-inlet is connected with liquid point Cloth device, cross_flow rotating packed bed is interior to be equipped with the packing layer with carrier, is equipped with and is sequentially connected between roots blower and gas feed Air heater, flowmeter and valve, liquid outlet connected with the entrance of reservoir by control valve, the outlet of reservoir Sequentially connected centrifugal pump and flowmeter are equipped between liquid-inlet.
Described filler layer seals up and down, and outside is equipped with screen membrane.
The gas feed and liquid outlet are symmetrical arranged along central axis.
The liquid distribution trough is arranged in annulus.
Cooling device is equipped on the outside of described filler layer and bearing.
A method of metallic catalyst is prepared, is included the following steps:
Motor is opened, so that cross_flow rotating packed bed is in rotation status, the maceration extract in reservoir is passed through by centrifugal pump Liquid-inlet is pumped into cross_flow rotating packed bed, after liquid distribution trough disperses, contacts with the carrier in packing layer, after dipping Maceration extract is flowed into reservoir by liquid outlet, carries out dipping process, and after the completion of to be impregnated, closing liquid inlet and outlet open gas Body inlet and outlet, the gas through air heater are passed through in cross_flow rotating packed bed, carry out activation process.
The maceration extract is precious metal salt solution or transition metal salt solution, and the noble metal or transition metal are single gold Category or multicomponent.
The carrier is aluminum oxide or molecular sieve or active carbon, and filling degree of the carrier in packing layer is 70%.
The temperature of air is 120-140 DEG C in the activation process.
The revolving speed of the cross_flow rotating packed bed is 900-1100r/min.
Cross_flow rotating packed bed is a kind of a kind of novel device for capableing of fortifier system interphase mass transfer, has been widely applied Microcosmic mixing in terms of gas-liquid, liquid liquid.In high-gravity rotating bed, liquid can be separated into drop, brin and liquid film, with it is anti- When should be in contact, increases object and be in contact area, strengthen reaction mass transfer.In Elevated Gravity, reaction medium is in high speed rotation State, dispersion degree is extremely strong, is applied to dipping and activation process, can effectively improve catalyst performance.
The beneficial effects of the utility model are as follows:
The utility model is impregnated and is activated using same equipment, realizes two integrated processes, shortens preparation time, Reduce cost.
Carrier is contacted with activating component for spray-type in the utility model, in rotary packed bed stabilization, powerful hypergravity Under environment, maceration extract rapidly updates in high dispersive, high turbulence, strong mixed interface, and is uniformly sprayed to carrier surface, and carrier exists Packing layer high speed rotates and is in rolling condition, comprehensive to contact with maceration extract, and the contact for substantially increasing liquid-solid two-phase is several Rate enhances mass transport process, greatly improves dipping effect.In activation process, heat gas after gas feed enters bed, It is contacted with high-speed rotating carrier, in the state of big air-flow, carrier is in fluidized state, greatly promotion activation effect, is shortened Activation time.
Detailed description of the invention
Fig. 1 is the process flow chart of the preparation method of the utility model;
Fig. 2 is the structural schematic diagram of the cross_flow rotating packed bed of the utility model;
Wherein: 1- roots blower;2- air heater;3- flowmeter;4- valve;5- liquid distribution trough;6- packing layer;7- Cross_flow rotating packed bed;8- reservoir;9- centrifugal pump;10- control valve;7.1- gas vent;7.2- gas feed;7.3- Liquid-inlet;7.4- cooling device;7.5- bearing;7.6- motor;7.7- liquid outlet.
Specific embodiment
In conjunction with attached drawing, the utility model is described further.
As shown in Figure 1 and Figure 2, a kind of preparing metallic catalyst device, including being equipped with gas inlet and outlet, liquid entrance Cross_flow rotating packed bed 7, the liquid-inlet 7.3 of cross_flow rotating packed bed 7 connect the maceration extract squeezed by centrifugal pump 9, warp It after liquid distribution trough 5 is evenly dispersed, is come into full contact with the carrier in packing layer 6, entire dipping process, it can be big according to carrier amount It is small, by control valve 4 and flowmeter 3, the flow of maceration extract is controlled, maceration extract is flowed into reservoir 8 by liquid outlet 7.7. The gas feed 7.2 of cross_flow rotating packed bed 7 connects the hot-air introduced by air heater 5, and gas vent 7.1 empties. The entire packing layer (adsorbent filling area) 6 of cross_flow rotating packed bed 7 connects bearing 7.5 by motor 7.6 and drives rotation.Entirely Dipping and activation process, cross_flow rotating packed bed 7 is all in rotation status, in order to avoid motor is heated excessive in activation process Cause to wear, cooling device 7.4 is equipped on the outside of entire bearing 7.5 and packing layer.
Packing layer 6 is equipped with inside the cross_flow rotating packed bed 7, to be closed up and down, two sides dead zone is set the packing layer Meter, two sides are wrapped up by filter membrane net, guarantee that maceration extract can enter and leave, and carrier is placed in sky cabin, and liquid distribution is equipped in the middle part of packing layer 6 Device 5 divides maceration extract uniformly strongly and spills in the carrier.Liquid is entered by liquid-inlet 7.7 by the maceration extract that centrifugal pump 9 is squeezed into In distributor 5, maceration extract is sprayed on the carrier being seated in packing layer 6 in the case where certain pressure, in the process, Packing layer 6 carries out high speed rotation with motor 7.6, and carrier is in tumbling state in packing layer, guarantees that each orientation can be by Maceration, meanwhile, the maceration extract in reservoir 8 is constantly in heated condition.
When the cross_flow rotating packed bed 7 carries out activation of catalyst, gas feed 7.2 connects air heater 2, activation The temperature of required gas is 120-140 DEG C, and in entire activation process, cooling device is equipped at packing layer shell and bearing.
The carrier is the adsorbent with certain catalytic activity and mechanical strength, can be aluminum oxide, point Son sieve, active carbon etc., the filling degree in packing layer 6 are 70%, guarantee that carrier is in tumbling state, promote dipping effect.Liquid storage Active component in slot 8 is precious metal salt solution or transition metal salt solution, can also be multicomponent for single metal.
The cross_flow rotating packed bed 7 prepares metallic catalyst, and dipping and activation are carried out in same equipment, realized Preparation integration.After the completion of dipping, closing liquid import 7.3 and liquid outlet 7.7 open gas feed 7.2 and gas vent 7.1, carry out activation process.
Embodiment 1: preparing carried metal activated-carbon catalyst using gravity Method, using active carbon as carrier, cupric, cerium gold Belong to the salting liquid of ion as activating component, using cross_flow rotating packed bed as dipping and activation equipment, is prepared for excessively Metallic catalyst.Experimental size is small-scale experiment, and the loadings of each active carbon are 100g, and the flow of maceration extract is 200L/h, In whole experiment process, the revolving speed of cross_flow rotating packed bed is 900r/min.In activation process, air heater heats air To 140 DEG C.Dip time is 10min, activation time 10min.The experimental results showed that the load capacity of copper is 11%, the load of cerium Amount is 5.3%.Meanwhile catalyst is prepared using magnetic stirring apparatus and is compared, 60min is impregnated in identical maceration extract, 180 120min is activated in DEG C baking oven, the Metal Supported content of catalyst improves 7% as the result is shown, illustrates that gravity Method can be mentioned effectively The Metal Supported content of catalyst is risen, dip time or activation time are reduced, and realizes impregnating active integration.
Embodiment 2: being prepared for the active carbon metallic catalyst of Supported Manganese using gravity Method, in the same work of embodiment 1 Under the conditions of condition, influence of the revolving speed to dipping and activation effect has been investigated.Experiment shows the activated-carbon catalyst of carried metal with turning The increase of speed, loading content increase.When revolving speed is 1100r/min, the content of metal of catalyst is 12.3%, revolving speed 300r/ When min, catalyst loadings 9.6%.
Embodiment 3: respectively using aluminum oxide, carbon fiber as carrier, transition metal and precious metal salt solution are active group Point, different types of metallic catalyst is prepared for using gravity Method, is compared with conventional infusion method.Experiment shows super The metallic catalyst load capacity of gravitational method preparation will be far longer than the catalyst of conventional method dipping, and can be big using gravity Method It is big to shorten dip time and activation time.Using aluminum oxide as carrier, nickeliferous metal salt is activating component, hypergravity rotary filling Expect that bed impregnates 10min, 15min, the revolving speed of 900r/min, the Metal Supported of catalyst are activated in 140 DEG C of Elevated Gravity Amount can reach 8.2%;20min is impregnated using conventional infusion method, 20min is activated in 140 DEG C of baking oven, the metal of catalyst is negative Carrying content is 6.5%.Experiment shows that gravity Method prepares metal supported catalyst and has the advantage that the time is short, effect is good.
Embodiment 4: catalysis burning toluene gas is carried out using copper-manganese catalyst prepared by gravity Method.Toluene gas is dense Degree is 3000ppm, and at 250 DEG C of temperature, toluene gas concentration is 90ppm after processing, and purifying rate can reach 90% or more, is realized The effect of catalysis burning toluene under low temperature.

Claims (5)

1. a kind of device for preparing metallic catalyst, it is characterised in that: including cross_flow rotating packed bed (7), roots blower (1) With reservoir (8), wherein the bottom of cross_flow rotating packed bed (7) is respectively equipped with gas feed (7.2) and liquid outlet (7.7), side wall is equipped with gas vent (7.1), and the center at top is equipped with liquid-inlet (7.3), cross_flow rotating packed bed (7) Bottom is equipped with the bearing (7.5) connecting with motor (7.6), and liquid-inlet (7.3) is connected with liquid distribution trough (5), hypergravity rotation Turn to be equipped with the packing layer (6) with carrier in packed bed (7), is equipped with and is sequentially connected between roots blower (1) and gas feed (7.2) Air heater (2), flowmeter (3) and valve (4), liquid outlet (7.7) passes through control valve (10) and reservoir (8) Entrance connection, is equipped with sequentially connected centrifugal pump (9) and flowmeter between the outlet and liquid-inlet (7.3) of reservoir (8).
2. a kind of device for preparing metallic catalyst according to claim 1, it is characterised in that: in described filler layer (6) Under seal, outside be equipped with screen membrane.
3. a kind of device for preparing metallic catalyst according to claim 1, it is characterised in that: the gas feed (7.2) it is symmetrical arranged with liquid outlet (7.7) along central axis.
4. a kind of device for preparing metallic catalyst according to claim 1, it is characterised in that: the liquid distribution trough (5) it is arranged in annulus.
5. a kind of device for preparing metallic catalyst according to claim 1, it is characterised in that: described filler layer (6) and Cooling device (7.4) are equipped on the outside of bearing (7.5).
CN201821063321.6U 2018-07-06 2018-07-06 A kind of device preparing metallic catalyst Withdrawn - After Issue CN208878602U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821063321.6U CN208878602U (en) 2018-07-06 2018-07-06 A kind of device preparing metallic catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821063321.6U CN208878602U (en) 2018-07-06 2018-07-06 A kind of device preparing metallic catalyst

Publications (1)

Publication Number Publication Date
CN208878602U true CN208878602U (en) 2019-05-21

Family

ID=66506308

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821063321.6U Withdrawn - After Issue CN208878602U (en) 2018-07-06 2018-07-06 A kind of device preparing metallic catalyst

Country Status (1)

Country Link
CN (1) CN208878602U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108854931A (en) * 2018-07-06 2018-11-23 中北大学 A kind of device and method preparing metallic catalyst
CN114433249A (en) * 2020-10-20 2022-05-06 中国石油化工股份有限公司 Catalyst impregnation device, catalyst impregnation method and application thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108854931A (en) * 2018-07-06 2018-11-23 中北大学 A kind of device and method preparing metallic catalyst
CN108854931B (en) * 2018-07-06 2024-02-09 中北大学 Device and method for preparing metal catalyst
CN114433249A (en) * 2020-10-20 2022-05-06 中国石油化工股份有限公司 Catalyst impregnation device, catalyst impregnation method and application thereof
CN114433249B (en) * 2020-10-20 2023-11-24 中国石油化工股份有限公司 Catalyst impregnation device, catalyst impregnation method and application thereof

Similar Documents

Publication Publication Date Title
CN108854931A (en) A kind of device and method preparing metallic catalyst
CN208878602U (en) A kind of device preparing metallic catalyst
CN105753088B (en) Rotary type microwave wastewater treatment device
CN106745645A (en) The preparation method and applications of nano zero-valence iron composite material
US20160256824A1 (en) Method for regenerating scr denitration catalyst assisted by microwaves and device therefor
CN103127906B (en) Core level activated carbon vacuum impregnation and vacuum pre-dried method and apparatus
CN108671690A (en) A kind of exhaust gas purifying method
CN104524947A (en) Spraying organic waste gas treatment system and treatment method based on molecular sieve adsorption technology
CN105944500A (en) Fixed bed type honeycomb VOCs adsorption and desorption device and method
CN105944529A (en) Emission-reduction combination equipment for microwave catalysis and biochemical treatment of VOCs (volatile organic chemicals)
CN103353118A (en) Low-concentration organic waste gas treatment device
CN110790975A (en) High-static-water-absorption dehumidifying material and preparation method thereof
CN106345223A (en) VOCs biodegradation method
CN103463936A (en) Device and method for removing sulfur dioxide contained in waste gas
CN101732943A (en) Device and method for controlling waste gas
CN207385140U (en) A kind of adsorbent equipment for Scatter Gather volatile organic compounds
CN105771582B (en) A kind of processing method of modified asphalt waterproof material production exhaust gas
CN105195012A (en) Volatile organic waste gas biological treatment system
CN208087258U (en) Multifunctional active carbon adsorbent equipment
CN104056645B (en) Production method and production device for low-mercury catalyst
CN109482136A (en) A kind of adsorbent and preparation method thereof
CN106492591A (en) The exploitation of new concentration runner and its application in VOCs is administered
CN209317446U (en) A kind of device of skid module formula processing VOCs exhaust gas
CN107029516A (en) A kind of spray painting tail gas treatment device for collecting Adsorption Concentration and high-speed catalysis burning
CN209848610U (en) Oil gas recovery device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20190521

Effective date of abandoning: 20240209

AV01 Patent right actively abandoned

Granted publication date: 20190521

Effective date of abandoning: 20240209