CN116713029A - High-stability methane combustion catalyst and preparation method and application thereof - Google Patents

High-stability methane combustion catalyst and preparation method and application thereof Download PDF

Info

Publication number
CN116713029A
CN116713029A CN202310516128.2A CN202310516128A CN116713029A CN 116713029 A CN116713029 A CN 116713029A CN 202310516128 A CN202310516128 A CN 202310516128A CN 116713029 A CN116713029 A CN 116713029A
Authority
CN
China
Prior art keywords
catalyst
hmcm
palladium
platinum
molecular sieve
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.)
Pending
Application number
CN202310516128.2A
Other languages
Chinese (zh)
Inventor
黄鑫
焦熙
武琳渊
王晓波
王建成
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.)
Taiyuan University of Technology
Original Assignee
Taiyuan University of Technology
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 Taiyuan University of Technology filed Critical Taiyuan University of Technology
Priority to CN202310516128.2A priority Critical patent/CN116713029A/en
Publication of CN116713029A publication Critical patent/CN116713029A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/74—Noble metals
    • B01J29/7476—MWW-type, e.g. MCM-22, ERB-1, ITQ-1, PSH-3 or SSZ-25
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)

Abstract

The application provides a high-stability methane combustion catalyst and a preparation method and application thereof, and belongs to the technical field of catalyst preparation. The catalyst comprises palladium-platinum bimetallic nano particles, a nano-sheet HMCM-22 molecular sieve and an auxiliary agent M, wherein the structural formula of the catalyst is M+PdPt/HMCM-22. The preparation method comprises the following steps: completely dissolving a palladium precursor and a platinum precursor in a solvent, adding an HMCM-22 molecular sieve, uniformly dispersing, and evaporating the solvent to obtain solid powder; calcining the solid powder at 450-550 ℃ for 3-12h; and (3) physically and uniformly mixing the calcined product and the auxiliary agent M to obtain the catalyst. According to the application, by adjusting the types and the proportions of the precursor and the solvent and introducing the HMCM-22 molecular sieve and the auxiliary agent M, the M+PdPt/HMCM-22 catalyst with good structural stability is synthesized, the methane conversion rate is high, the catalyst is not easy to sinter, and the catalyst can be widely applied to the field of coal mine ventilation air methane catalytic combustion.

Description

High-stability methane combustion catalyst and preparation method and application thereof
Technical Field
The application belongs to the technical field of catalyst preparation, and particularly relates to a high-stability methane combustion catalyst, and a preparation method and application thereof.
Background
Methane is the global second largest greenhouse gas contributing approximately 25% to global warming, next to carbon dioxide. In coal mining, low concentration ventilation air methane (i.e., methane) is usually emitted directly without restriction, and methane emissions are currently 2100 ten thousand tons, which is statistically equivalent to the greenhouse effect produced by 5.25 hundred million tons of carbon dioxide.
Because the concentration of ventilation air methane in the coal mine is very low, the concentration is generally lower than 0.5%. Thus, large scale management of coal mine ventilation air methane is extremely challenging.
In the 1970 s Pfefferle et al first proposed the concept of catalytic combustion. Thereafter, methane catalytic combustion reactions have received extensive attention from researchers in various countries. Currently, methane combustion catalysts can be divided into: noble metal (palladium, platinum, etc.) catalysts, transition metal (nickel, manganese, copper, etc.) catalysts, and perovskite materials.
Among them, palladium-based silica, alumina, ceria, molecular sieves, etc. are widely used for methane catalytic combustion reactions. Patent CN115445651a discloses a pure silicon molecular sieve supported palladium catalyst and a preparation method thereof, which can realize complete conversion of methane into water and carbon dioxide under milder conditions. However, palladium-based materials have the difficulty of catalyzing the combustion reaction of methane in that palladium nanoparticles are prone to sintering and slow deactivation during the reaction, especially for low concentrations of methane.
In view of this, the present application has been made.
Disclosure of Invention
The application aims to provide a high-stability methane combustion catalyst, a preparation method and application thereof, wherein the type and proportion of a precursor and a solvent are regulated, and an HMCM-22 molecular sieve and an auxiliary agent M are introduced to synthesize the M+PdPt/HMCM-22 catalyst with good structural stability, so that the methane conversion rate is high, the catalyst is not easy to sinter, and the catalyst can be widely applied to the field of coal mine ventilation air methane catalytic combustion.
In order to achieve the above purpose, the application adopts the following technical scheme:
a high-stability methane combustion catalyst comprises palladium-platinum bimetallic nano particles, a nano-sheet HMCM-22 molecular sieve and an auxiliary agent M, wherein the structural formula of the catalyst is M+PdPt/HMCM-22.
Further, the mass ratio of the palladium to the platinum to the HMCM-22 molecular sieve to the auxiliary agent M is (0.1-1.0): 50-200): 100.
The application also provides a preparation method of the high-stability methane combustion catalyst, which comprises the following steps: completely dissolving a palladium precursor and a platinum precursor in a solvent, adding an HMCM-22 molecular sieve, uniformly dispersing, and evaporating the solvent to obtain solid powder; calcining the obtained solid powder at 450-550 ℃ for 3-12h; and (3) physically and uniformly mixing the calcined product and the auxiliary agent M to obtain the catalyst.
Preferably, after the calcination, the product obtained by the calcination and the auxiliary agent M are physically and uniformly mixed at 50-70 ℃ and cooled to obtain the catalyst.
The addition of HMCM-22 can limit the boundary and stabilize the microstructure of the active Pd-Pt site, thereby promoting the methane combustion catalyst to show extremely stable performance in the reaction.
Preferably, the palladium precursor comprises one or more of palladium chloride, palladium sulfate, palladium acetate, palladium nitrate and the like.
Preferably, the platinum precursor comprises one or more of ethylenediamine platinum chloride, platinum tetrachloride, ammonium chloroplatinate, tetraamine platinum dichloride or platinum acetylacetonate.
Preferably, the solvent includes one of deionized water, ethanol, methanol, acetone, or the like.
Further, the palladium precursor, the platinum precursor and the HMCM-22 molecular sieve are proportioned according to the mass ratio of Pb to Pt to HMCM-22 molecular sieve of (0.1-1.0) to (50-200).
Preferably, the dispersion is an ultrasonic dispersion.
Preferably, the evaporation is: the solvent was gradually evaporated in a rotary evaporator at 8-12kPa, 20-75 ℃.
Preferably, the auxiliary agent M comprises one or more of polyimide, calcium oxide, magnesium oxide, ferric oxide or cerium oxide, and the auxiliary agent can break the thermodynamic equilibrium of methane combustion. Preferably, the auxiliary M comprises calcium oxide or cerium oxide.
Further, the particle sizes of the product obtained by calcination and the auxiliary agent M are 40-60 meshes.
The application also provides application of the high-stability methane combustion catalyst in low-concentration methane catalytic combustion. Wherein the methane content is 0.1-0.5vol.%, the water vapor content is 1-5vol.%, the oxygen content is 10-20vol.%, the rest is nitrogen, the airspeed is 10-300L/(g.h), and the reaction temperature is 300-500 ℃.
According to the application, through selecting the types and proportions of the palladium precursor, the platinum precursor and the solvent and introducing the HMCM-22 molecular sieve and the auxiliary agent M, the M+PdPt/HMCM-22 catalyst is synthesized, the methane conversion rate is high, the catalyst is not easy to sinter, the stability is high, and the catalyst can be widely applied to the field of coal mine ventilation air methane catalytic combustion.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is an XRD pattern of a catalyst prepared in example 3 of the present application;
FIG. 2 is a TEM image of the catalyst prepared according to example 1 of the application;
FIG. 3 is a Pd XPS plot of the catalyst prepared in example 1 of the present application before and after the reaction;
FIG. 4 is a graph showing the stability test of the catalyst prepared in example 1 of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The proportion relation of the substances not specifically indicated in the application is understood to be any proportion, and the solvent dosage is understood to be the dosage which can be completely dissolved in the application.
Example 1
A high-stability methane combustion catalyst comprises palladium-platinum bimetallic nano particles, a nano-sheet HMCM-22 molecular sieve and calcium oxide, wherein the structural formula of the catalyst is CaO+PdPt/HMCM-22, and the mass ratio of the palladium to the platinum to the HMCM-22 molecular sieve to the calcium oxide is 0.1:1:100:100.
The preparation method comprises the following steps: dissolving 5.1mg of tetra-ammine platinum dichloride and 67.6mg of palladium nitrate in 20g of deionized water, adding 3g of HMCM-22 molecular sieve, performing ultrasonic dispersion for 30min until uniform, and gradually evaporating the deionized water in a rotary evaporator at 10kPa and 75 ℃ to obtain solid powder; calcining the obtained solid powder in a muffle furnace at 500 ℃ for 5 hours; and (3) physically and uniformly mixing 40-60 mesh powder of the calcined product with 3g of 40-60 mesh calcium oxide, and obtaining the product, wherein the TEM morphology of the product is shown in figure 2.
The CaO+PdPt/HMCM-22 catalyst prepared by the method is used for catalyzing methane combustion, and the temperature is 370 ℃, 1atm, 30L (h.g) and CH 4 -H 2 O-O 2 -N 2 Under mixed gas (CH) 4 The content is 0.5vol.% H 2 The O content is 1vol.% O 2 The content was 20vol.%, the remainder being N 2 )，CH 4 The conversion was 99.5%, and as can be seen from FIG. 4, the catalyst was not significantly deactivated by steady operation for 1000 hours, and as can be seen from FIG. 3, the activity of palladium was not significantly changed before and after the reaction, and the activity began to decrease after 1200 hours.
Example 2
A high-stability methane combustion catalyst comprises palladium-platinum bimetallic nano particles, a nano-sheet HMCM-22 molecular sieve and silicon oxide, and has a structural formula of SiO 2 +PdPt/HMCM-22, wherein the mass ratio of palladium, platinum, HMCM-22 molecular sieve and silicon oxide is 0.1:1:100:100.
The preparation method comprises the following steps: dissolving 5.1mg of tetra-ammine platinum dichloride and 67.6mg of palladium nitrate in 20g of deionized water, adding 3g of HMCM-22 molecular sieve, performing ultrasonic dispersion for 30min until uniform, and gradually evaporating the deionized water in a rotary evaporator at 10kPa and 75 ℃ to obtain solid powder; calcining the obtained solid powder in a muffle furnace at 500 ℃ for 5 hours; and (3) physically and uniformly mixing 40-60 mesh powder of the calcined product with 3g of 40-60 mesh silicon oxide.
The SiO2+PdPt/HMCM-22 catalyst prepared in the above way is used for catalyzing methane combustion, and the test conditions are the same as those of example 1, CH 4 The conversion rate is 96.5%, the stable operation is carried out for 1000 hours without obvious inactivation, and the test activity starts to drop after 1200 hours.
Example 3
A high-stability methane combustion catalyst comprises palladium-platinum bimetallic nano particles, a nano-sheet HMCM-22 molecular sieve and polyimide, wherein the structural formula of the catalyst is polyimide+PdPt/HMCM-22, and the mass ratio of the palladium to the platinum to the HMCM-22 molecular sieve to the polyimide is 1:1:100:200.
The preparation method comprises the following steps: dissolving 50.1mg of ethylenediamine platinum chloride and 50.0mg of palladium chloride in 20g of ethanol, adding 3g of HMCM-22 molecular sieve, uniformly dispersing by ultrasonic, and gradually evaporating the ethanol in a rotary evaporator at 10kPa and 20 ℃ to obtain solid powder; calcining the obtained solid powder in a muffle furnace at 500 ℃ for 3 hours; the calcined 40-60 mesh powder was physically mixed with 6g of 40-60 mesh polyimide to obtain the XRD pattern shown in FIG. 1.
The polyimide+PdPt/HMCM-22 catalyst prepared by the method is used for catalyzing methane combustion, and the temperature is 300 ℃, 1atm, 10L (h.g) and CH 4 -H 2 O-O 2 -N 2 Under mixed gas (CH) 4 The content is 0.1vol.% H 2 The O content is 5vol.% O 2 The content was 10vol.%, the remainder being N 2 )，CH 4 The conversion rate is 93.8%, the stable operation is carried out for 1000 hours without obvious inactivation, and the test activity starts to drop after 1200 hours.
Example 4
A high-stability methane combustion catalyst comprises palladium-platinum bimetallic nano particles, a nano-sheet HMCM-22 molecular sieve and magnesium oxide, wherein the structural formula of the catalyst is MgO+PdPt/HMCM-22, and the mass ratio of the palladium to the platinum to the HMCM-22 molecular sieve to the magnesium oxide is 0.1:0.5:100:50.
The preparation method comprises the following steps: dissolving 5.2mg of platinum tetrachloride and 28.5mg of palladium sulfate in 20g of methanol, adding 3g of HMCM-22 molecular sieve, uniformly dispersing by ultrasonic, and gradually evaporating the methanol in a rotary evaporator at 10kPa and 40 ℃ to obtain solid powder; calcining the obtained solid powder in a muffle furnace at 550 ℃ for 12h; and (3) physically and uniformly mixing 40-60 mesh powder of the calcined product with 1.5g of 40-60 mesh magnesium oxide.
The MgO+PdPt/HMCM-22 catalyst prepared by the method is used for catalyzing methane combustion, and the temperature is 400 ℃, 1atm, 300L (h.g) and CH 4 -H 2 O-O 2 -N 2 Under mixed gas (CH) 4 The content is 0.25vol.% H 2 The O content was 2.5vol.% O 2 15vol.% of N in the remainder 2 )，CH 4 The conversion rate is 95.9%, the stable operation is carried out for 1000 hours without obvious inactivation, and the test activity starts to drop after 1200 hours.
Example 5
A high-stability methane combustion catalyst comprises palladium-platinum bimetallic nano particles, a nano-sheet HMCM-22 molecular sieve and ferric oxide, and has a structural formula of Fe 2 O 3 +PdPt/HMCM-22, wherein the mass ratio of palladium, platinum, HMCM-22 molecular sieve and ferric oxide is 1:0.1:100:66.
The preparation method comprises the following steps: dissolving 30.2mg of platinum acetylacetonate and 6.3mg of palladium acetate in 20g of acetone, adding 3g of HMCM-22 molecular sieve, uniformly dispersing by ultrasonic, and gradually evaporating the acetone in a rotary evaporator at 10kPa and 45 ℃ to obtain solid powder; calcining the obtained solid powder in a muffle furnace at 480 ℃ for 8 hours; and (3) physically and uniformly mixing 40-60 mesh powder of the calcined product with 2g of 40-60 mesh ferric oxide.
Fe prepared by the method 2 O 3 The +pdpt/HMCM-22 catalyst is used to catalyze methane combustion,at 350 ℃, 1atm, 100L (h.g), CH 4 -H 2 O-O 2 -N 2 Under mixed gas (CH) 4 The content is 0.5vol.% H 2 The O content is 3vol.% O 2 15vol.% of N in the remainder 2 )，CH 4 The conversion rate is 96.1%, the stable operation is carried out for 1000 hours without obvious inactivation, and the test activity starts to drop after 1200 hours.
Example 6
A high-stability methane combustion catalyst comprises palladium-platinum bimetallic nano particles, a nano-sheet HMCM-22 molecular sieve and cerium oxide, and has a structural formula of CeO 2 +PdPt/HMCM-22, wherein the mass ratio of palladium, platinum, HMCM-22 molecular sieve and cerium oxide is 0.3:0.3:100:100.
The preparation method comprises the following steps: completely dissolving 23.5mg of ammonium chloroplatinate and 20.8mg of palladium nitrate in 20g of acetone, adding 3g of HMCM-22 molecular sieve, uniformly dispersing by ultrasonic, and gradually evaporating the acetone in a rotary evaporator at 10kPa and 75 ℃ to obtain solid powder; calcining the obtained solid powder in a muffle furnace at 500 ℃ for 5 hours; and (3) physically and uniformly mixing 40-60 mesh powder of the calcined product with 3g of 40-60 mesh cerium oxide.
CeO prepared by the method 2 The +PdPt/HMCM-22 catalyst is used for catalyzing methane combustion, and at 500 ℃, 1atm, 200L (h.g) and CH 4 -H 2 O-O 2 -N 2 Under mixed gas (CH) 4 The content is 0.4vol.% H 2 The O content was 4vol.% O 2 The content was 18vol.%, the remainder being N 2 )，CH 4 The conversion rate is 100%, the stable operation is carried out for 1000 hours without obvious inactivation, and the test activity starts to drop after 1200 hours.
Example 7
A high stability methane combustion catalyst differing from example 1; and (3) physically and uniformly mixing 40-60 mesh powder of the calcined product with 3g of 40-60 mesh calcium oxide at 65 ℃ and cooling to obtain the product.
Test conditions were the same as in example 1, CH 4 The conversion rate is 99.4%, and the stable operation is performed for 1400 hours without obvious deactivation.
Example 8
A high stability methane combustion catalyst differing from example 3; and (3) physically and uniformly mixing 40-60 mesh powder of the calcined product with 6g of 40-60 mesh polyimide at 70 ℃, and cooling to obtain the product.
Test conditions were the same as in example 3, CH 4 The conversion was 94.4% and the stable operation was 1400h without significant deactivation.
It can be seen from a comparison of examples 7, 8 with examples 1, 3 that physical mixing of the calcined product and the promoter at 65 c is also effective in extending catalyst stability while maintaining substantially conversion.
Note that the technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be regarded as the scope of the description. The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (10)

1. The high-stability methane combustion catalyst is characterized by comprising palladium-platinum bimetallic nano particles, a nano-sheet HMCM-22 molecular sieve and an auxiliary agent M, wherein the structural formula of the catalyst is M+PdPt/HMCM-22.
2. The catalyst according to claim 1, wherein the mass ratio of palladium, platinum, HMCM-22 molecular sieve and promoter M is (0.1-1.0): 50-200): 100.
3. The preparation method of the high-stability methane combustion catalyst is characterized in that a palladium precursor and a platinum precursor are completely dissolved in a solvent, an HMCM-22 molecular sieve is added, the dispersion is uniform, and the solvent is evaporated to obtain solid powder;
calcining the obtained solid powder at 450-550 ℃ for 3-12h;
and (3) physically and uniformly mixing the calcined product and the auxiliary agent M to obtain the catalyst.
4. The process according to claim 3, wherein the calcined product is obtained by physically mixing the calcined product with the auxiliary agent M uniformly at 50-70 ℃ and cooling.
5. The method according to claim 3 or 4, wherein the palladium precursor comprises one or more of palladium chloride, palladium sulfate, palladium acetate, or palladium nitrate;
the platinum precursor comprises one or more of ethylenediamine platinum chloride, platinum tetrachloride, ammonium chloroplatinate, tetraamine platinum dichloride or platinum acetylacetonate;
the solvent comprises one of deionized water, ethanol, methanol or acetone.
6. The preparation method according to claim 5, wherein the palladium precursor, the platinum precursor and the HMCM-22 molecular sieve are compounded according to the mass ratio of Pb, pt, HMCM-22 molecular sieve of (0.1-1.0), 0.1-1.0 and 50-200.
7. The method of preparation according to claim 3 or 4, wherein the dispersion is an ultrasonic dispersion;
the evaporation is as follows: the solvent was gradually evaporated in a rotary evaporator at 8-12kPa, 20-75 ℃.
8. The preparation method according to claim 3 or 4, wherein the auxiliary agent M comprises one or more of polyimide, calcium oxide, magnesium oxide, iron oxide or cerium oxide.
9. The process according to claim 3 or 4, wherein the particle size of the calcined product and the auxiliary M is 40-60 mesh.
10. The application of a high-stability methane combustion catalyst in low-concentration methane catalytic combustion is provided.
CN202310516128.2A 2023-05-09 2023-05-09 High-stability methane combustion catalyst and preparation method and application thereof Pending CN116713029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310516128.2A CN116713029A (en) 2023-05-09 2023-05-09 High-stability methane combustion catalyst and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310516128.2A CN116713029A (en) 2023-05-09 2023-05-09 High-stability methane combustion catalyst and preparation method and application thereof

Publications (1)

Publication Number Publication Date
CN116713029A true CN116713029A (en) 2023-09-08

Family

ID=87872416

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310516128.2A Pending CN116713029A (en) 2023-05-09 2023-05-09 High-stability methane combustion catalyst and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN116713029A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923224A (en) * 2015-05-27 2015-09-23 华东理工大学 Supported-palladium catalyst used for methane combustion and preparation method for supported-palladium catalyst
CN108579799A (en) * 2018-05-07 2018-09-28 天津大学 MFI structure nano-sheet layer molecular sieve catalyst, preparation method and application thereof
US20180318798A1 (en) * 2015-11-12 2018-11-08 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources Methane Oxidation Catalyst and Method of Using Same
CN111298818A (en) * 2019-11-14 2020-06-19 天津大学 Palladium and platinum catalyst, preparation thereof and application thereof in reaction for preparing furan from furfural
CN111644197A (en) * 2020-05-15 2020-09-11 北京化工大学 Catalytic system for preparing aromatic hydrocarbon by low-temperature methane conversion, preparation method and application
CN112007691A (en) * 2020-09-18 2020-12-01 中海油天津化工研究设计院有限公司 Platinum-palladium bimetallic catalyst and preparation method and application thereof
CN115445651A (en) * 2022-09-14 2022-12-09 浙江大学 Pure silicon molecular sieve supported palladium catalyst for methane catalytic combustion and preparation method thereof
CN116023252A (en) * 2021-10-25 2023-04-28 中国石油化工股份有限公司 Hydrogenation method for terephthalic acid

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923224A (en) * 2015-05-27 2015-09-23 华东理工大学 Supported-palladium catalyst used for methane combustion and preparation method for supported-palladium catalyst
US20180318798A1 (en) * 2015-11-12 2018-11-08 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources Methane Oxidation Catalyst and Method of Using Same
CN108579799A (en) * 2018-05-07 2018-09-28 天津大学 MFI structure nano-sheet layer molecular sieve catalyst, preparation method and application thereof
CN111298818A (en) * 2019-11-14 2020-06-19 天津大学 Palladium and platinum catalyst, preparation thereof and application thereof in reaction for preparing furan from furfural
CN111644197A (en) * 2020-05-15 2020-09-11 北京化工大学 Catalytic system for preparing aromatic hydrocarbon by low-temperature methane conversion, preparation method and application
CN112007691A (en) * 2020-09-18 2020-12-01 中海油天津化工研究设计院有限公司 Platinum-palladium bimetallic catalyst and preparation method and application thereof
CN116023252A (en) * 2021-10-25 2023-04-28 中国石油化工股份有限公司 Hydrogenation method for terephthalic acid
CN115445651A (en) * 2022-09-14 2022-12-09 浙江大学 Pure silicon molecular sieve supported palladium catalyst for methane catalytic combustion and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XIN HUANG ET AL.: "Boosting methane catalytic combustion by confining PdO-Pd interfaces in zeolite nanosheets", 《FUEL》, vol. 344, 24 March 2023 (2023-03-24), pages 127693 *

Similar Documents

Publication Publication Date Title
WO2017187400A1 (en) Supported cobaltosic oxide catalyst, and preparation method and use therefor
CN103586030A (en) Preparation method of mesoporous confinement nickel-based methane dry reforming catalyst
JP2016159209A (en) Ammonia decomposition catalyst, production method of catalyst, and ammonia decomposition method using catalyst
JPH01262945A (en) Heat resistant noble metallic catalyst and production thereof
CN108636418B (en) Rare earth modified nickel-based catalyst for preparing synthesis gas by reforming methane with pressurized carbon dioxide
Akbari et al. Preparation and evaluation of A/BaO‐MnOx catalysts (A: Rh, Pt, Pd, Ru) in lean methane catalytic combustion at low temperature
JP2010099638A (en) Catalyst, catalyst for purifying exhaust gas, and method for manufacturing the catalyst
CN114570360A (en) Ru-based catalyst and preparation method and application thereof
Akbari et al. CeO2-promoted BaO-MnOx catalyst for lean methane catalytic combustion at low temperatures: Improved catalytic efficiency and light-off temperature
AU2014209841B2 (en) An ammonia oxidation catalyst for the production of nitric acid based on metal doped yttrium ortho cobaltate
CN116713029A (en) High-stability methane combustion catalyst and preparation method and application thereof
CN107790170B (en) Methane dry reforming catalyst and preparation method and application thereof
JP5266323B2 (en) Method for removing CO, H2 and / or CH4 from fuel cell anode waste gas using mixed oxide catalyst comprising Cu, Mn and optionally at least one rare earth metal
EP2823887B1 (en) Oxidation catalyst and exhaust gas purification method using same
CN105498780B (en) A kind of Cu/ZnO catalyst and preparation method thereof and in CO2Application in chemical conversion
CN115646510A (en) Catalyst for CO selective oxidation reaction and preparation method thereof
CN113398941B (en) Preparation process of high-efficiency carbon smoke removal catalyst and product thereof
KR101988370B1 (en) Catalysts for methanation of carbon dioxide and the manufacturing method of the same
CN103058138B (en) Preparation method of synthesis gas
CN113952956B (en) Preparation method of methane dry reforming catalyst, methane dry reforming catalyst and application thereof
CN115414947A (en) Preparation method of diatomic site catalyst and application of catalyst in carbon dioxide methanation
JP3834621B2 (en) Catalyst for water gas shift reaction
JP2024508879A (en) Ammonia decomposition catalyst, its manufacturing method, and hydrogen production method using the same
Lv et al. Catalytic oxidation of ethyl acetate over Y (Y= Cu, Mn, Co)-modified CeO2 derived from Ce-MOF
CN115739090B (en) Preparation method and application of transition metal oxide catalyst with high surface oxygen vacancy density

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination