CN105879901A - Preparation method for supported catalyst for catalyzing combustion of VOCs (Volatile Organic Compounds) - Google Patents

Preparation method for supported catalyst for catalyzing combustion of VOCs (Volatile Organic Compounds) Download PDF

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CN105879901A
CN105879901A CN201610299232.0A CN201610299232A CN105879901A CN 105879901 A CN105879901 A CN 105879901A CN 201610299232 A CN201610299232 A CN 201610299232A CN 105879901 A CN105879901 A CN 105879901A
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zsm
molecular sieve
catalyst
vocs
surface area
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碗海鹰
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • B01J29/48—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing arsenic, antimony, bismuth, vanadium, niobium tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
    • B01J29/46—Iron group metals or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself

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  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

The invention belongs to the technical field of environmental protection and catalysts, and particularly relates to a preparation method for a supported catalyst for catalyzing the combustion of VOCs (Volatile Organic Compounds). The supported catalyst is prepared by a ZSM-5 molecular sieve with a high specific surface area and a metal precursor; the preparation method comprises the following steps: drying the ZSM-5 molecular sieve with the high specific surface area to remove adsorbed moisture; mixing the metal precursor and water, and stirring to dissolve to prepare a solution; stirring and mixing the prepared solution and the pre-treated ZSM-5 molecular sieve, standing, drying, sintering and cooling a mixture to a normal temperature to obtain the supported catalyst for catalyzing the combustion of the VOCs. According to the catalyst provided by the invention, the ZSM-5 molecular sieve with the high specific surface area is adopted as a carrier, so that the using amount of active components can be reduced, and the cost can be reduced; meanwhile, the catalyst is beneficial to the adsorption of pollutants on the surface of the catalyst. The catalytic oxidation capacity of the catalyst to the VOCs is improved; the combustion can be catalyzed effectively at a low temperature to remove benzene series compounds (for example, methylbenzene) from the VOCs. Moreover, the catalyst is lower in cost and simple in process, and has high hydrothermal stability and sulphur resistance.

Description

A kind of preparation method of the loaded catalyst for being catalyzed burning VOCs
Technical field
The invention belongs to environmental conservation and catalyst technical field, be specifically related to a kind of supported catalyst for being catalyzed burning VOCs The preparation method of agent.
Background technology
Volatile organic matter (Volatile Organic in the industry discharge waste gas such as fine chemistry industry, petrochemical industry, pharmacy Compounds, is called for short VOCs) it is the most typical polluter of current atmospheric environment, its kind is the most, specifically includes that benzene homologues, Alkene, alcohols, aldehydes, organic chloride etc..VOCs gas is the most poisonous, scent of, some VOCs such as benzene homologues (benzene, Toluene, dimethylbenzene etc.) even there is strong carcinogenecity and genotoxicity.Along with economic fast development, particularly light industry is compared Some coastal cities concentrated, the discharge capacity containing benzene homologues industrial waste gas is increasing, is formed huge to health and atmospheric environment Big threat.Therefore, seek economy, efficient benzene series VOCs emission control technique becomes the important class in current environmental catalysis field One of topic.
At present, common VOCs controls technology to be had absorption, absorbs, condense, membrane separation technique, direct burning, thermal oxide, urges Change burning, biodegradation, ultraviolet catalytic oxidation method, plasma method etc..Production by Catalytic Combustion Process is that the VOCs in waste gas is in catalysis Under agent effect, low-temperature oxidation is decomposed into CO2And H2The method of O, the method is low owing to having operation temperature, and auxiliary materials expense is low, nothing Secondary pollution, combustion apparatus is simple, and VOCs clearance advantages of higher is it is considered to be one of the most promising control technology. The core of VOCs catalysis combustion control technology is catalyst.The factors such as the type of catalyst activity component, load capacity are to catalyst Catalysis activity plays decisive role.Simultaneously as catalyst combustion reaction mostly occurs at catalyst surface, it is therefore desirable to by activity Component is supported on carrier to obtain big specific surface area, this consumption being possible not only to reduce active component, and can improve machinery Intensity, heat stability and catalysis activity.Therefore the selection of carrier also plays vital effect to the quality of catalyst performance.
At present, noble metal catalyst and metal oxide catalyst can be substantially divided into by catalyst activity component.Noble metal catalyst (Pt, Pd, Ru etc.) activity is high, selectivity is good, and during catalysis burning VOCs, initiation temperature can as little as 100～200 DEG C, is answering The superiority that other metals are incomparable is had in.But due to its resource scarcity, expensive, and process chloride and sulfur-bearing VOCs time be easy to poisoning, thus it is difficult to large-scale promotion in commercial Application.Single metal oxide catalyst is deposited again High at initiation temperature, the problems such as catalysis activity is low, poor stability.And by two or more metal (Cu, Mn, Co, Ce Deng) O composite metallic oxide catalyst for preparing, its catalysis activity is apparently higher than corresponding single metal-oxide, catalysis The firing point of burning reduces, and becomes the focus of current catalyst for catalytic combustion research.The carrier of catalyst for catalytic combustion mainly uses Be metal-oxide Al2O3、TiO2、ZrO2, cordierite honeycomb ceramic and molecular sieve (Y, ZSM-5 etc.).ZSM-5 zeolite divides Son sieve is owing to having well-regulated micropore canals, bigger specific surface area, good hydrothermal stability and acidity so that it is as carrier Cause concern.But, the solid tumor that on traditional Z SM-5 zeolite molecular sieve, single microcellular structure causes limits, and seriously hinders Hinder it as carrier application on VOCs catalyst for catalytic combustion.
Summary of the invention
It is an object of the invention to for above-mentioned problems of the prior art, it is provided that while a kind of guarantee high catalytic activity, aobvious Write the preparation method of the loaded catalyst for being catalyzed burning VOCs of the load capacity reducing active component.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of preparation method of the loaded catalyst for being catalyzed burning VOCs, wherein: it is to be divided by high-specific surface area ZSM-5 Son sieve and metal precursor are made；Concrete preparation method comprises the following steps:
1) high-specific surface area ZSM-5 molecular sieve is dried 2～4 hours at a temperature of 100～120 DEG C, to remove high-ratio surface The moisture of absorption in long-pending ZSM-5 molecular sieve；
2) metal precursor is mixed with water, stirring and dissolving, obtained solution, wherein, the quality of metal and step 1) pretreatment After the mass ratio of ZSM-5 molecular sieve be 0.01～0.10, the consumption of water is step 1) pretreated ZSM-5 molecular sieve Quality × specific pore volume；
3) by step 2) solution and the step 1 prepared) stirring of pretreated ZSM-5 molecular sieve mix, and standing 2～12 is little Shi Hou, after being dried 2～4 hours, places in Muffle furnace, at 500～550 DEG C in being placed in baking oven at a temperature of 120～150 DEG C Calcining heat under calcine 3～5 hours；
4) material after calcining is cooled to room temperature and i.e. obtains the loaded catalyst for being catalyzed burning VOCs.
Specific surface area >=the 500m of described high-specific surface area ZSM-5 molecular sieve2/ g, specific pore volume >=0.6mL/g.
Described metal precursor be in copper nitrate, manganese nitrate, ferric nitrate, cobalt nitrate, cerous nitrate any one or a few with appoint The mixture of meaning ratio.
The present invention uses above technical scheme, due to mesoporous introducing, changes guest molecule the evolving path thereon, improves The diffusion rate of molecule；Meanwhile, big external surface area and absorption and reaction that mesoporous pore volume is macromole provide effectively Space, therefore this catalyst is using high-specific surface area ZSM-5 molecular sieve as carrier, decreases active component consumption, reduces into This, meanwhile, beneficially pollutant are in the absorption of catalyst surface.The active component of catalyst is copper, manganese, ferrum, cobalt, cerium gold Belong to one or more in element.Synergistic function between the characteristic of carrier self and different metal, improves catalyst to VOCs Catalysis oxidability, can be CO by volatile organic matter complete oxidations such as toluene2And H2O, converts at 210～250 DEG C of Toluenes Rate is up to more than 99%.Meanwhile, catalyst low cost of manufacture of the present invention, technique is simple, has good hydrothermal stability and resists Sulfur performance.
Accompanying drawing explanation
Fig. 1 is the experimental result of the catalyst burning toluene of embodiment 1-3.
Fig. 2 is the catalyst of embodiment 2 evaluation result to toluene catalytic combustion stability.
Detailed description of the invention
Embodiment 1
The preparation method of a kind of loaded catalyst for being catalyzed burning VOCs in the present embodiment, wherein: it is by specific surface Long-pending >=500m2/ g, the high-specific surface area ZSM-5 molecular sieve of specific pore volume >=0.6mL/g and metal precursor are made；The specifically side of preparation Method comprises the following steps:
1) by specific surface area >=500m2The high-specific surface area ZSM-5 molecular sieve of/g, specific pore volume >=0.6mL/g is the temperature of 100 DEG C Lower drying 2 hours, to remove the moisture of absorption in high-specific surface area ZSM-5 molecular sieve；
2) copper nitrate is mixed with water, stirring and dissolving, obtained solution, wherein, the quality of copper metal and step 1) after pretreatment The mass ratio of ZSM-5 molecular sieve be 0.01, the consumption of water is step 1) quality × ratio of pretreated ZSM-5 molecular sieve Pore volume；
3) by step 2) solution and the step 1 prepared) stirring of pretreated ZSM-5 molecular sieve mixes, after standing 2 hours, After being dried 2 hours at a temperature of 120 DEG C in being placed in baking oven, place in Muffle furnace, under the calcining heat of 500 DEG C, calcine 3 Hour；
4) material after calcining is cooled to room temperature and i.e. obtains the loaded catalyst for being catalyzed burning VOCs.
As it is shown in figure 1, the experimental result of catalyst burning toluene:
Catalyst activity is evaluated: the Cu/ZSM-5 loaded catalyst that 1.0mL tabletting is 20～60 mesh is loaded fixed-bed catalytic anti- In answering the crystal reaction tube of device, reaction system pressure is normal pressure, and air mass flow is 200mL/min, and air speed is 12000h-1, first Benzene concentration is 1000ppm, and temperature range is 100～300 DEG C, and gas chromatographic detection result is: reaction temperature is 100,150, 180,200,220,250,300 DEG C time toluene conversion ratio be respectively 0.8%, 6.3%, 36.6%, 67.2%, 89.5%, 99.6%, 100.0%.
Embodiment 2
The preparation method of a kind of loaded catalyst for being catalyzed burning VOCs in the present embodiment, wherein: it is by specific surface Long-pending >=500m2/ g, the high-specific surface area ZSM-5 molecular sieve of specific pore volume >=0.6mL/g and metal precursor are made；The specifically side of preparation Method comprises the following steps:
1) by specific surface area >=500m2The high-specific surface area ZSM-5 molecular sieve of/g, specific pore volume >=0.6mL/g is the temperature of 120 DEG C Lower drying 4 hours, to remove the moisture of absorption in high-specific surface area ZSM-5 molecular sieve；
2) copper nitrate, manganese nitrate, cerous nitrate are mixed with water, stirring and dissolving, obtained solution, wherein, copper metal, manganese metal It is 2:2:1 with the mass ratio of ce metal, the gross mass of copper metal, manganese metal and ce metal and step 1) pretreated ZSM-5 The mass ratio of molecular sieve is 0.10, and the consumption of water is step 1) quality × specific pore volume of pretreated ZSM-5 molecular sieve；
3) by step 2) solution and the step 1 prepared) stirring of pretreated ZSM-5 molecular sieve mixes, after standing 12 hours, After being dried 4 hours at a temperature of 150 DEG C in being placed in baking oven, place in Muffle furnace, under the calcining heat of 550 DEG C, calcine 5 Hour；
4) material after calcining is cooled to room temperature and i.e. obtains the loaded catalyst for being catalyzed burning VOCs.
As shown in Figure 1 and Figure 2, the experimental result of catalyst burning toluene:
Catalyst activity is evaluated: the Cu-Mn-Ce/ZSM-5 loaded catalyst that 1.0mL tabletting is 20～60 mesh is loaded fixed bed In the crystal reaction tube of catalyst reaction device, reaction system pressure is normal pressure, and air mass flow is 200mL/min, and air speed is 12000h-1, toluene concentration is 1000ppm, and temperature range is 100～300 DEG C, and gas chromatographic detection result is: reaction temperature is 100,150,180,200,220,250,300 DEG C time toluene conversion ratio be respectively 1.0%, 10.3%, 56.6%, 94.2%, 100.0%, 100.0%, 100.0%.
Catalyst stability is evaluated: load fixing by the Cu-Mn-Ce/ZSM-5 loaded catalyst that 1.0mL tabletting is 20～60 mesh In the crystal reaction tube of bed catalytic reactor, reaction system pressure is normal pressure, and air mass flow is 200mL/min, and air speed is 12000h-1, toluene concentration is 1000ppm, and temperature is 220 DEG C, uses gas chromatographic detection.
Embodiment 3
As it is shown in figure 1, the experimental result of catalyst burning toluene:
The preparation method of a kind of loaded catalyst for being catalyzed burning VOCs in the present embodiment, wherein: it is by specific surface Long-pending >=500m2/ g, the high-specific surface area ZSM-5 molecular sieve of specific pore volume >=0.6mL/g and metal precursor are made；The specifically side of preparation Method comprises the following steps:
1) by specific surface area >=500m2The high-specific surface area ZSM-5 molecular sieve of/g, specific pore volume >=0.6mL/g is the temperature of 110 DEG C Lower drying 3 hours, to remove the moisture of absorption in high-specific surface area ZSM-5 molecular sieve；
2) copper nitrate, manganese nitrate being mixed with water, stirring and dissolving, obtained solution, wherein, copper metal with manganese metal quality ratio is 1:1, the gross mass of copper metal and manganese metal and step 1) mass ratio of pretreated ZSM-5 molecular sieve is 0.08, the use of water Amount is for step 1) quality × specific pore volume of pretreated ZSM-5 molecular sieve；
3) by step 2) solution and the step 1 prepared) stirring of pretreated ZSM-5 molecular sieve mixes, after standing 8 hours, After being dried 3 hours at a temperature of 130 DEG C in being placed in baking oven, place in Muffle furnace, under the calcining heat of 530 DEG C, calcine 4 Hour；
4) material after calcining is cooled to room temperature and i.e. obtains the loaded catalyst for being catalyzed burning VOCs.
Catalyst activity is evaluated: the Cu-Mn/ZSM-5 loaded catalyst that 1.0mL tabletting is 20～60 mesh is loaded fixed bed In the crystal reaction tube of catalyst reaction device, reaction system pressure is normal pressure, and air mass flow is 200mL/min, and air speed is 12000h-1, toluene concentration is 1000ppm, and temperature range is 100～300 DEG C, and gas chromatographic detection result is: reaction temperature is 100,150,180,200,220,250,300 DEG C time toluene conversion ratio be respectively 1.0%, 9.3%, 50.6%, 90.2%, 99.5%, 100.0%, 100.0%.
Embodiment 4
The preparation method of a kind of loaded catalyst for being catalyzed burning VOCs in the present embodiment, wherein: it is by specific surface Long-pending >=500m2/ g, the high-specific surface area ZSM-5 molecular sieve of specific pore volume >=0.6mL/g and metal precursor are made；The specifically side of preparation Method comprises the following steps:
1) by specific surface area >=500m2The high-specific surface area ZSM-5 molecular sieve of/g, specific pore volume >=0.6mL/g is the temperature of 115 DEG C Lower drying 2.5 hours, to remove the moisture of absorption in high-specific surface area ZSM-5 molecular sieve；
2) manganese nitrate, cobalt nitrate are mixed with water, stirring and dissolving, obtained solution, wherein, manganese metal and the mass ratio of cobalt metal For 2:1, the gross mass of manganese metal and cobalt metal and step 1) mass ratio of pretreated ZSM-5 molecular sieve is 0.045, water Consumption be step 1) quality × specific pore volume of pretreated ZSM-5 molecular sieve；
3) by step 2) solution and the step 1 prepared) stirring of pretreated ZSM-5 molecular sieve mixes, after standing 6 hours, After being dried 2.5 hours at a temperature of 140 DEG C in being placed in baking oven, place in Muffle furnace, calcine under the calcining heat of 540 DEG C 3.5 hour；
4) material after calcining is cooled to room temperature and i.e. obtains the loaded catalyst for being catalyzed burning VOCs.
Catalyst activity is evaluated: the Mn-Co/ZSM-5 loaded catalyst that 1.0mL tabletting is 20～60 mesh is loaded fixed bed and urges Changing in the crystal reaction tube of reaction unit, reaction system pressure is normal pressure, and air mass flow is 200mL/min, and air speed is 12000h-1, Toluene concentration is 1000ppm, and temperature range is 100～300 DEG C, and gas chromatographic detection result is: reaction temperature is 100,150, 180,200,220,250,300 DEG C time toluene conversion ratio be respectively 1.0%, 8.3%, 47.6%, 77.2%, 94.5%, 100.0%, 100.0%.
Embodiment 5
The preparation method of a kind of loaded catalyst for being catalyzed burning VOCs in the present embodiment, wherein: it is by specific surface Long-pending >=500m2/ g, the high-specific surface area ZSM-5 molecular sieve of specific pore volume >=0.6mL/g and metal precursor are made；The specifically side of preparation Method comprises the following steps:
1) by specific surface area >=500m2The high-specific surface area ZSM-5 molecular sieve of/g, specific pore volume >=0.6mL/g is the temperature of 105 DEG C Lower drying 3.5 hours, to remove the moisture of absorption in high-specific surface area ZSM-5 molecular sieve；
2) manganese nitrate, cobalt nitrate, cerous nitrate are mixed with water, stirring and dissolving, obtained solution, wherein, manganese metal, cobalt metal It is 2:1:2 with the mass ratio of ce metal, the gross mass of manganese metal, cobalt metal and ce metal and step 1) pretreated ZSM-5 The mass ratio of molecular sieve is 0.075, and the consumption of water is step 1) quality × specific pore volume of pretreated ZSM-5 molecular sieve；
3) by step 2) solution and the step 1 prepared) stirring of pretreated ZSM-5 molecular sieve mixes, after standing 10 hours, After being dried 3.5 hours at a temperature of 145 DEG C in being placed in baking oven, place in Muffle furnace, calcine under the calcining heat of 520 DEG C 4.5 hour；
4) material after calcining is cooled to room temperature and i.e. obtains the loaded catalyst for being catalyzed burning VOCs.
Catalyst activity is evaluated: the Mn-Co-Ce/ZSM-5 loaded catalyst that 1.0mL tabletting is 20～60 mesh is loaded fixed bed In the crystal reaction tube of catalyst reaction device, reaction system pressure is normal pressure, and air mass flow is 200mL/min, and air speed is 12000h-1, toluene concentration is 1000ppm, and temperature range is 100～300 DEG C, and gas chromatographic detection result is: reaction temperature is 100,150,180,200,220,250,300 DEG C time toluene conversion ratio be respectively 1.0%, 15.3%, 66.6%, 99.2%, 100.0%, 100.0%, 100.0%.
Embodiment 6
The preparation method of a kind of loaded catalyst for being catalyzed burning VOCs in the present embodiment, wherein: it is by specific surface Long-pending >=500m2/ g, the high-specific surface area ZSM-5 molecular sieve of specific pore volume >=0.6mL/g and metal precursor are made；The specifically side of preparation Method comprises the following steps:
1) by specific surface area >=500m2The high-specific surface area ZSM-5 molecular sieve of/g, specific pore volume >=0.6mL/g is the temperature of 120 DEG C Lower drying 2 hours, to remove the moisture of absorption in high-specific surface area ZSM-5 molecular sieve；
2) ferric nitrate is mixed with water, stirring and dissolving, obtained solution, wherein, the quality of ferrous metal and step 1) after pretreatment The mass ratio of ZSM-5 molecular sieve be 0.03, the consumption of water is step 1) quality × ratio of pretreated ZSM-5 molecular sieve Pore volume；
3) by step 2) solution and the step 1 prepared) stirring of pretreated ZSM-5 molecular sieve mixes, after standing 4 hours, After being dried 2.5 hours at a temperature of 135 DEG C in being placed in baking oven, place in Muffle furnace, calcine under the calcining heat of 510 DEG C 5 hours；
4) material after calcining is cooled to room temperature and i.e. obtains the loaded catalyst for being catalyzed burning VOCs.
Catalyst activity is evaluated: the Fe/ZSM-5 loaded catalyst that 1.0mL tabletting is 20～60 mesh is loaded fixed-bed catalytic anti- In answering the crystal reaction tube of device, reaction system pressure is normal pressure, and air mass flow is 200mL/min, and air speed is 12000h-1, first Benzene concentration is 1000ppm, and temperature range is 100～300 DEG C, and gas chromatographic detection result is: reaction temperature is 100,150, 180,200,220,250,300 DEG C time toluene conversion ratio be respectively 0.8%, 5.3%, 32.6%, 60.2%, 82.5%, 94.6%, 100.0%.
Embodiment 7
The preparation method of a kind of loaded catalyst for being catalyzed burning VOCs in the present embodiment, wherein: it is by specific surface Long-pending >=500m2/ g, the high-specific surface area ZSM-5 molecular sieve of specific pore volume >=0.6mL/g and metal precursor are made；The specifically side of preparation Method comprises the following steps:
1) by specific surface area >=500m2The high-specific surface area ZSM-5 molecular sieve of/g, specific pore volume >=0.6mL/g is the temperature of 110 DEG C Lower drying 3 hours, to remove the moisture of absorption in high-specific surface area ZSM-5 molecular sieve；
2) ferric nitrate, manganese nitrate are mixed with water, stirring and dissolving, obtained solution, wherein, ferrous metal and the mass ratio of manganese metal For 3:2, the gross mass of ferrous metal and manganese metal and step 1) mass ratio of pretreated ZSM-5 molecular sieve is 0.05, water Consumption is step 1) quality × specific pore volume of pretreated ZSM-5 molecular sieve；
3) by step 2) solution and the step 1 prepared) stirring of pretreated ZSM-5 molecular sieve mixes, after standing 7 hours, After being dried 4 hours at a temperature of 125 DEG C in being placed in baking oven, place in Muffle furnace, under the calcining heat of 550 DEG C, calcine 3 Hour；
4) material after calcining is cooled to room temperature and i.e. obtains the loaded catalyst for being catalyzed burning VOCs.
Catalyst activity is evaluated: the Fe-Mn/ZSM-5 loaded catalyst that 1.0mL tabletting is 20～60 mesh is loaded fixed bed and urges Changing in the crystal reaction tube of reaction unit, reaction system pressure is normal pressure, and air mass flow is 200mL/min, and air speed is 12000h-1, Toluene concentration is 1000ppm, and temperature range is 100～300 DEG C, and gas chromatographic detection result is: reaction temperature is 100,150, 180,200,220,250,300 DEG C time toluene conversion ratio be respectively 1.0%, 9.8%, 53.6%, 92.2%, 99.5%, 100.0%, 100.0%.
It is CO that benzene homologues can be catalyzed combustion decomposition by catalyst of the present invention at low temperatures completely2And H2O。
The invention is not limited in these embodiments.Based on heretofore described embodiment, those of ordinary skill in the art are not All other embodiments obtained on the premise of needing creative work, all in the range of the present invention is protected.

Claims (3)

1. the preparation method being used for being catalyzed the loaded catalyst of burning VOCs, it is characterised in that: it is by Gao Bibiao Area ZSM-5 molecular sieve and metal precursor are made；Concrete preparation method comprises the following steps:
1) high-specific surface area ZSM-5 molecular sieve is dried 2～4 hours at a temperature of 100～120 DEG C, to remove height ratio The moisture of absorption in surface area ZSM-5 molecular sieve；
2) metal precursor is mixed with water, stirring and dissolving, obtained solution, wherein, quality and the step 1 of metal) locate in advance The mass ratio of the ZSM-5 molecular sieve after reason is 0.01～0.10, and the consumption of water is step 1) pretreated ZSM-5 molecule Quality × the specific pore volume of sieve；
3) by step 2) solution and the step 1 prepared) stirring of pretreated ZSM-5 molecular sieve mix, standing 2～12 After hour, be placed in after being dried 2～4 hours at a temperature of 120～150 DEG C in baking oven, place in Muffle furnace, 500～ Calcine 3～5 hours under the calcining heat of 550 DEG C；
4) material after calcining is cooled to room temperature and i.e. obtains the loaded catalyst for being catalyzed burning VOCs.
The preparation method of a kind of loaded catalyst for being catalyzed burning VOCs the most according to claim 1, it is special Levy and be: the specific surface area >=500m of described high-specific surface area ZSM-5 molecular sieve2/ g, specific pore volume >=0.6mL/g.
The preparation method of a kind of loaded catalyst for being catalyzed burning VOCs the most according to claim 1, it is special Levy and be: described metal precursor be in copper nitrate, manganese nitrate, ferric nitrate, cobalt nitrate, cerous nitrate any one or several Plant the mixture with any ratio.
CN201610299232.0A 2016-05-06 2016-05-06 Preparation method for supported catalyst for catalyzing combustion of VOCs (Volatile Organic Compounds) Pending CN105879901A (en)

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CN106732621A (en) * 2016-10-27 2017-05-31 南京工业大学 A kind of Sulfur-resistant catalytic combustion catalyst and preparation method and application
CN107051463A (en) * 2017-04-07 2017-08-18 北京化工大学常州先进材料研究院 A kind of preparation method for being used to be catalyzed burning VOCs loaded catalyst
CN107149942A (en) * 2016-11-30 2017-09-12 江苏安琪尔废气净化有限公司 For the preparation method for the catalyst for being catalyzed burning polycyclic aromatic hydrocarbons (PAH)
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CN109701548A (en) * 2018-12-31 2019-05-03 柏美迪康环境科技（上海）股份有限公司 A kind of monoblock type VOCs catalyst for catalytic combustion and preparation method thereof
CN111185242A (en) * 2020-01-09 2020-05-22 五邑大学 Co3O4-mMOxZIFs composite material and preparation and application thereof
CN111215130A (en) * 2019-11-28 2020-06-02 浙江师范大学 Catalyst for eliminating diethylamine and preparation method thereof
CN112844459A (en) * 2021-02-04 2021-05-28 安徽省博广运环保科技有限公司 VOCs catalytic oxidation catalyst and preparation method and application thereof
CN113522354A (en) * 2021-07-28 2021-10-22 几唯(苏州)新材料科技有限公司 Preparation and application of molecular sieve supported composite metal oxide catalyst
CN113713849A (en) * 2021-09-15 2021-11-30 美埃(中国)环境科技股份有限公司 Adsorption catalysis material and preparation method thereof
CN114160185A (en) * 2021-12-06 2022-03-11 东南大学 VOCs adsorption and catalysis dual-function material and preparation method thereof
CN114643041A (en) * 2022-03-11 2022-06-21 山东大学 Adsorption catalytic oxidation dual-function material and preparation method and application thereof
CN114950467A (en) * 2021-02-22 2022-08-30 复旦大学 VOCs catalytic combustion catalyst and preparation method and application thereof
CN115770609A (en) * 2022-11-17 2023-03-10 华电电力科学研究院有限公司 Preparation method of fly ash-based Fe/ZSM-5 mesoporous molecular sieve catalyst
CN115845912A (en) * 2022-11-01 2023-03-28 四川省生态环境科学研究院 Composite transition metal molecular sieve catalyst, and preparation method and application thereof

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WO2018068729A1 (en) * 2016-10-12 2018-04-19 友好净控科技（浙江）有限公司 Air purification composite catalyst and preparation method thereof
CN106732621A (en) * 2016-10-27 2017-05-31 南京工业大学 A kind of Sulfur-resistant catalytic combustion catalyst and preparation method and application
CN107149942A (en) * 2016-11-30 2017-09-12 江苏安琪尔废气净化有限公司 For the preparation method for the catalyst for being catalyzed burning polycyclic aromatic hydrocarbons (PAH)
CN107051463A (en) * 2017-04-07 2017-08-18 北京化工大学常州先进材料研究院 A kind of preparation method for being used to be catalyzed burning VOCs loaded catalyst
CN109701548A (en) * 2018-12-31 2019-05-03 柏美迪康环境科技（上海）股份有限公司 A kind of monoblock type VOCs catalyst for catalytic combustion and preparation method thereof
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CN111185242A (en) * 2020-01-09 2020-05-22 五邑大学 Co3O4-mMOxZIFs composite material and preparation and application thereof
CN111185242B (en) * 2020-01-09 2022-12-13 五邑大学 Co 3 O 4 -mMO x ZIFs composite material and preparation and application thereof
CN112844459A (en) * 2021-02-04 2021-05-28 安徽省博广运环保科技有限公司 VOCs catalytic oxidation catalyst and preparation method and application thereof
CN112844459B (en) * 2021-02-04 2023-06-02 安徽省博广运环保科技有限公司 VOCs catalytic oxidation catalyst and preparation method and application thereof
CN114950467A (en) * 2021-02-22 2022-08-30 复旦大学 VOCs catalytic combustion catalyst and preparation method and application thereof
CN113522354A (en) * 2021-07-28 2021-10-22 几唯(苏州)新材料科技有限公司 Preparation and application of molecular sieve supported composite metal oxide catalyst
CN113713849A (en) * 2021-09-15 2021-11-30 美埃(中国)环境科技股份有限公司 Adsorption catalysis material and preparation method thereof
CN114160185A (en) * 2021-12-06 2022-03-11 东南大学 VOCs adsorption and catalysis dual-function material and preparation method thereof
CN114643041A (en) * 2022-03-11 2022-06-21 山东大学 Adsorption catalytic oxidation dual-function material and preparation method and application thereof
CN114643041B (en) * 2022-03-11 2024-02-23 山东大学 Adsorption catalytic oxidation dual-functional material and preparation method and application thereof
CN115845912A (en) * 2022-11-01 2023-03-28 四川省生态环境科学研究院 Composite transition metal molecular sieve catalyst, and preparation method and application thereof
CN115770609A (en) * 2022-11-17 2023-03-10 华电电力科学研究院有限公司 Preparation method of fly ash-based Fe/ZSM-5 mesoporous molecular sieve catalyst
CN115770609B (en) * 2022-11-17 2024-04-19 华电电力科学研究院有限公司 Preparation method of fly ash-based Fe/ZSM-5 mesoporous molecular sieve catalyst

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