CN106587147A - Y/ZrO2 composite material synthesized through guiding agent process and preparation method of same - Google Patents

Y/ZrO2 composite material synthesized through guiding agent process and preparation method of same Download PDF

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CN106587147A
CN106587147A CN201611064168.4A CN201611064168A CN106587147A CN 106587147 A CN106587147 A CN 106587147A CN 201611064168 A CN201611064168 A CN 201611064168A CN 106587147 A CN106587147 A CN 106587147A
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zro
composite
directing agent
zirconium
employing
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CN106587147B (en
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刘欣梅
刘万荣
刘龙妹
阎子峰
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China University of Petroleum East China
China Petroleum and Natural Gas Co Ltd
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China University of Petroleum East China
China Petroleum and Natural Gas Co Ltd
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    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00Compounds of zirconium
    • C01G25/02Oxides
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/20Faujasite type, e.g. type X or Y
    • C01B39/24Type Y
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    • C01P2004/60Particles characterised by their size
    • C01P2004/62Submicrometer sized, i.e. from 0.1-1 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/14Pore volume

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Abstract

The invention provides a Y/ZrO2 composite material synthesized through a guiding agent process and a preparation method of same. The method includes the following steps: adding a ZrO2 precursor ZrOx(OH)y (0 <= x <= 2 and 0 <= y <= 4) into a hydrothermal synthesis system which is used for preparing a Y-type molecular sieve through the guiding agent process, and performing crystallization so that the ZrO2 and the Y-type molecular sieve grow and crystallize together, thereby finally producing the Y/ZrO2 composite material. By means of the method, the Y/ZrO2 composite material has the porous advantage of mesoporous materials and strong acidity and high hydrothermal stability of microporous molecular sieves at the same time, and due to the advantages hereinabove, the composite material has strong practical application value in industrial catalysis field. The composite material is especially suitable for preparing a catalytic cracking catalyst or a hydrocracking catalyst.

Description

A kind of Y/ZrO of directing agent method synthesis2Composite and preparation method thereof
Technical field
The invention belongs to solid composite material technical field, and in particular to a kind of Y/ZrO of directing agent method synthesis2Composite wood Material and preparation method thereof.
Background technology
Catalytic cracking (FCC) is one of most important heavy oil lighting means of petroleum refining industry, and catalyst amount is maximum Crude oil secondary processing process.In the development course of nearly 80 years, catalytic cracking (FCC) catalyst is all using sial as main Elementary composition, the micropore and a small amount of irregular mesoporous of carrier imparting that its pore passage structure is mainly provided by Y type molecular sieve is constituted.Change The determination for learning composition and pore passage structure makes catalyst performance regulate and control to be restricted, it is difficult to which the raw material that adaptive character increasingly changes is needed Ask.Especially from the nineties in 20th century, the heaviness and in poor quality of world's crude oil are on the rise, glue in catalytically cracked material Matter, asphalitine and heavy metal components content are continuously increased, and peracid and high-alkali nitrogen raw material frequency are existing.Meanwhile, the market of lighting oil product Demand is continuously increased, and quality control index is increasingly strict, and reformulated gasoline has added steam in addition to unleaded and high-octane rating again The indexs such as pressure, the content of aromatic hydrocarbons and benzene, sulfur content, oxygenatedchemicalss and olefin(e) centent.Raw material mix, the complexity of composition and product The harshness FCC catalyst for causing structure-sensitive of product Con trolling index faces a severe challenge.Existing silica-alumina catalyst is difficult to Meet the efficient light to different structure and quality heavy oil and clean the demand of light-end products production, especially to high-alkali nitrogen Weight oil handling.Therefore, FCC catalyst is in addition to the characteristic with traditional cracking dose, it is necessary to possess more preferable cracking The pore-size distribution of heavy oil macromole, bigger specific surface area and pore volume and higher matrix-active and higher alkali resistant nitrogen and weight Metallic pollution ability.People have carried out secondary structure to Y type molecular sieve using methods such as hydrothermal treatment consists, chemical treatments once and have set Meter, introduces thulium and duct regulation and control into molecular sieve, binding agent the Nomenclature Composition and Structure of Complexes is regulated and controled, to carrier Pore passage structure and acid appropriate regulation, these measures optimize the performance of FCC catalyst to varying degrees.But in order to ensure The wear resistance of FCC catalyst, molecular sieve ratio shared in the catalyst are limited.Meanwhile, the duct of FCC catalyst carrier Structure and acid adjustment are also difficult to reach expection, and the degree of optimization of final catalyst performance is limited.Chemical composition and pore passage structure Determination make catalyst performance regulate and control be restricted, it is difficult to the raw materials requirement that adaptive character increasingly changes.
The content of the invention
In order to overcome the problems referred to above, it is an object of the invention to provide a kind of Y/ZrO of employing directing agent method synthesis2Composite wood The method of material.
It is a further object of the present invention to provide by obtained in said method Y/ZrO2Composite.
It is yet another object of the invention to provide a kind of utilize above-mentioned Y/ZrO2Catalyst obtained in composite.
To reach above-mentioned purpose, the invention provides a kind of Y/ZrO2The preparation method of composite, wherein, the method is By zirconium dioxide presoma ZrOx(OH)y(0≤x≤2,0≤y≤4) be added to the hydro-thermal conjunction that directing agent method prepares Y type molecular sieve In architectonical, and zirconium dioxide and the common crystallization growth of Y type molecular sieve are made by Crystallizing treatment, finally obtain Y/ZrO2Composite wood Material.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, creatively by zirconium dioxide forerunner Body ZrOx(OH)yIt is added in the synthetic system of Y type molecular sieve, the two is thoroughly mixed to form into homogeneous preparation system, Ran Houtong Cross in-situ crystallization and realize the two common crystallization growth.By the formation of Zr-O-Si chemical bonds, realize in Y type molecular sieve two The growth on zirconium oxide presoma surface, defines composite truly.Also, Y/ZrO obtained in the method2It is compound Material is provided simultaneously with the duct advantage of mesoporous material with the highly acid of micro porous molecular sieve and high hydrothermal stability.And, above-mentioned side Method process is simple, it is easy to operate, it is easy to industrialized production.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, zirconium dioxide presoma is with ZrOx (OH) it is in the form of y, due to the Zr-O chemical bond easy fractures in the presoma therefore easily former with the Si in Y type molecular sieve Son carry out coordinate bond and, and form Zr-O-Si chemical bonds.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that the method includes following Step:
To carry out for alkali source, silicon source, silicon source, directed agents and the water and zirconium dioxide presoma that prepare Y type molecular sieve Stirring mixing, obtains mixture A;
Hydrothermal crystallizing process is carried out to the mixture A, then carries out washing by hydrothermal crystallizing product, dried, obtained To Y/ZrO2Composite.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that zirconium dioxide presoma With the consumption of silicon source respectively with ZrO2And Al2O3Molar ratio computing, ZrO2:Al2O3=(1-5):1;More preferably ZrO2: Al2O3=(2-4):1.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that before the zirconium dioxide Drive body to be obtained by grinding by the mixture of highly basic and the inorganic salt of zirconium;Highly basic is preferably sodium hydroxide, be so not introduced into it is miscellaneous from Son, can directly use abrasive material.Zirconium dioxide presoma is prepared using solid-phase sequencing, not only operating process is easy, effectively Discharge of wastewater is reduced, and makes obtained Y/ZrO2Composite has mesopore orbit.When preparing zirconium dioxide presoma, can With the inorganic salt using zirconium commonly used in the art, such as zirconyl nitrate or zirconium oxychloride.It is highly preferred that the nothing of sodium hydroxide and zirconium The time of the grinding of machine salt is 5-30 minutes.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that the alkali source is hydrogen-oxygen Change sodium, source of aluminium is sodium metaaluminate and/or aluminum sulfate, and the silicon source is waterglass and/or Ludox.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that prepare Y type molecular sieve The mole dosage ratio of alkali source, silicon source, silicon source and water is Na2O:Al2O3:SiO2:H2O=(1-10):1:(6-15):(0-350); More preferably Na2O:Al2O3:SiO2:H2O=(3-8):1:(8-9):(100-200).
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that the directed agents are logical Cross following methods preparation:Sodium hydroxide, sodium metaaluminate and/or aluminum sulfate, waterglass and/or Ludox and water are pressed Na2O:Al2O3:SiO2:H2O=(12-18):1:(10-16):(100-350) mixed in molar ratio, after stirring 30-90 minutes, 6-24 hours are stood under room temperature, directed agents are obtained.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that the quality of silicon source with Al2O3Meter, the addition of the directed agents are the 2-8% of silicon source quality.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that the stirring mixing Time is 1-10 hours, preferably 0.5-3 hours.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that the hydrothermal crystallizing Condition is:Crystallization 4-48h at 90-120 DEG C.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that the washing is to use matter Measure the deionized water for 6-11 times of crystallization product to be washed.
In the Y/ZrO of above-mentioned employing directing agent method synthesis2In the method for composite, it is preferable that the condition of the drying For:1-12 hours are dried at 60-200 DEG C.
In a kind of preferred implementation that the present invention is provided, Y/ZrO is prepared using following steps2Composite:
(1) by sodium hydroxide and zirconium oxychloride (or zirconyl nitrate) it is (2-4) in molar ratio:1 mixed grinding 5-30 minutes, Prepared zirconium dioxide presoma;
(2) sodium hydroxide, sodium metaaluminate and/or aluminum sulfate, waterglass and/or Ludox and water are pressed into Na2O:Al2O3: SiO2:H2O=(12-18):1:(10-16):(100-350) mixed in molar ratio, after stirring 30-90 minutes, is stood at room temperature 6-24 hours, are obtained directed agents;
(3) under room temperature by above-mentioned zirconium dioxide presoma and sodium hydroxide, sodium metaaluminate and/or aluminum sulfate, waterglass and/ Or Ludox and deionized water are according to Na2O:Al2O3:SiO2:ZrO2:H2O=(1-10):1:(6-15):(1-5):(0-150) Mol ratio feed intake, and while add directed agents, stirring mixing 1-10 hours after, obtain mixture A;
(4) by said mixture A in 90-120 DEG C of crystallization 4-48h, it is then 6-11 times of crystallization product (by dry with quality Base meter) deionized water crystallization product is washed and sucking filtration, 1-12 hours is dried again at 60-200 DEG C, Y/ZrO is obtained2 Composite (solid product).
Present invention also offers a kind of utilize Y/ZrO obtained in said method2Composite.The specific surface of the material is larger In a preferred embodiment, 500m is can reach (2·g-1More than), and there is Ultra-fine (nanoscale) in structure and be situated between Pore property, therefore the highly acid and high hydrothermal stability of the duct advantage with mesoporous material and micro porous molecular sieve.
Invention additionally provides a kind of utilize above-mentioned Y/ZrO2Catalyst obtained in composite.Due to Y/ZrO2It is compound The good characteristic that material has so as to have stronger actual application value in Industrial Catalysis field, is especially suitable for system Standby catalytic cracking catalyst or hydrocracking catalyst.
At present, the optimization of FCC catalyst performance is all in the basic chemical composition (sial is essential element) for determining and hole Carry out in road structure (it is a small amount of irregular mesoporous that the micropore and carrier that Y type molecular sieve is provided gives), it is difficult to bring breakthrough Progress.And the Y/ZrO that the present invention is provided2Composite, to regulate and control primary chemical composition (sial zirconium is as essential element) to cut Enter, and then control the surface-sensitive structure of FCC catalyst, the composite has not only broken the chemical group of existing FCC catalyst Into and giving its Ultra-fine and mesoporous characteristic in structure so that its have simultaneously the duct advantage of mesoporous material with it is micro- The highly acid and high hydrothermal stability of porous molecular sieve.Specifically, in existing FCC catalyst, carrier constitutes about its gross mass 60-70%, thus the composition of carrier, surface acidity and pore passage structure are bound to the reactivity worth of the whole catalyst of appreciable impact;And The Y/ZrO that the present invention is provided2Composite, with the ZrO that there is oxidation-reduction quality and Acidity of Aikalinity simultaneously2Introduce, make the thing phase of material Structure, pore passage structure and Acidity etc. are all dramatically different with conventional FCC catalyst, therefore have substantially widened FCC catalyst property Regulation and control space, be expected to improve adaptability of the FCC catalyst to different heavy charges.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and beneficial effect, now to skill of the invention Art scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
Embodiment 1
Present embodiments provide a kind of Y/ZrO2Composite, concrete preparation method are as follows:
(1) sodium hydroxide and zirconium oxychloride are pressed into 4:1 mixed in molar ratio is ground 10 minutes, and zirconium dioxide forerunner is obtained Body;
(2) sodium hydroxide, sodium metaaluminate, Ludox and deionized water are pressed into Na2O:Al2O3:SiO2:H2O=18:1: 14:200 mixed in molar ratio, after stirring 40 minutes, stands 24 hours at room temperature, directed agents is obtained;
(3) under room temperature by above-mentioned zirconium dioxide presoma and sodium hydroxide, sodium metaaluminate, aluminum sulfate, Ludox and go from Sub- water is according to Na2O:Al2O3:SiO2:ZrO2:H2O=3:1:8:2:150 mol ratio feeds intake, and while adds directed agents (with inclined Total Al that sodium aluminate and aluminum sulfate are provided2O3Quality meter, the addition of directed agents is total Al2O35%), stirring mixing is 3 little Shi Hou, obtains mixture A;
(4) by said mixture A in 100 DEG C of crystallization 20h, then going with quality 8 times crystallization product (based on butts) Crystallization product is washed ionized water and sucking filtration, dry 12 hours at 60 DEG C again, prepared Y/ZrO2(solid is produced composite Product).
In the Y/ZrO2In composite, the relative crystallinity of Y type molecular sieve is 35.5%, and specific surface is 243m2/ g, always Pore volume is 0.26cm3/ g, the granularity of product concentrate on 150nm or so.
Embodiment 2
Present embodiments provide a kind of Y/ZrO2Composite, concrete preparation method are as follows:
(1) it is 3 in molar ratio by sodium hydroxide and zirconium oxychloride:1 mixed grinding 20 minutes, is obtained zirconium dioxide forerunner Body;
(2) sodium hydroxide, sodium metaaluminate, waterglass and deionized water are pressed into Na2O:Al2O3:SiO2:H2O=15:1: 16:350 mixed in molar ratio, after stirring 90 minutes, stands 18 hours at room temperature, directed agents is obtained;
(3) under room temperature by above-mentioned zirconium dioxide presoma and sodium hydroxide, sodium metaaluminate, aluminum sulfate, waterglass and go from Sub- water is according to Na2O:Al2O3:SiO2:ZrO2:H2O=5:1:8.5:1:100 mol ratio feeds intake, and while add directed agents (with Total Al that sodium metaaluminate and aluminum sulfate are provided2O3Quality meter, the addition of directed agents is total Al2O35%), stirring mixing 2 After hour, mixture A is obtained;
(4) by said mixture A in 110 DEG C of crystallization 16h, then going with quality 11 times crystallization product (based on butts) Crystallization product is washed ionized water and sucking filtration, dry 3 hours at 150 DEG C again, prepared Y/ZrO2(solid is produced composite Product).
In the Y/ZrO2In composite, the relative crystallinity of Y type molecular sieve is 39.7%, and specific surface is 374m2/ g, always Pore volume is 0.33cm3/ g, the granularity of product concentrate on 160nm or so.
Embodiment 3
Present embodiments provide a kind of Y/ZrO2Composite, concrete preparation method are as follows:
(1) it is 4 in molar ratio by sodium hydroxide and zirconium oxychloride:1 mixed grinding 20 minutes, is obtained zirconium dioxide forerunner Body;
(2) sodium hydroxide, sodium metaaluminate, Ludox and deionized water are pressed into Na2O:Al2O3:SiO2:H2O=16:1: 19:270 mixed in molar ratio, after stirring 60 minutes, stands 24 hours at room temperature, directed agents is obtained;
(3) under room temperature by above-mentioned zirconium dioxide presoma and sodium hydroxide, sodium metaaluminate, aluminum sulfate, Ludox and go from Sub- water is according to Na2O:Al2O3:SiO2:ZrO2:H2O=7.5:1:7.5:0.5:180 mol ratio feeds intake, and is oriented to while adding Agent is (with total Al that sodium metaaluminate and aluminum sulfate are provided2O3Quality meter, the addition of directed agents is total Al2O35%), stirring After mixing 10 hours, mixture A is obtained;
(4) by said mixture A in 110 DEG C of crystallization 24h, then going with quality 11 times crystallization product (based on butts) Crystallization product is washed ionized water and sucking filtration, dry 5 hours at 100 DEG C again, prepared Y/ZrO2(solid is produced composite Product).
In the Y/ZrO2In composite, the relative crystallinity of Y type molecular sieve is 30.4%, and specific surface is 565m2/ g, always Pore volume is 0.42cm3/ g, the granularity of product concentrate on 140nm or so.
Embodiment 4
Present embodiments provide a kind of Y/ZrO2Composite, concrete preparation method are as follows:
(1) it is 4 in molar ratio by sodium hydroxide and zirconium oxychloride:1 mixed grinding 20 minutes, is obtained zirconium dioxide forerunner Body;
(2) sodium hydroxide, sodium metaaluminate, waterglass and deionized water are pressed into Na2O:Al2O3:SiO2:H2O=16:1: 19:270 mixed in molar ratio, after stirring 60 minutes, stands 24 hours at room temperature, directed agents is obtained;
(3) under room temperature by above-mentioned zirconium dioxide presoma and sodium hydroxide, sodium metaaluminate, aluminum sulfate, waterglass and go from Sub- water is according to Na2O:Al2O3:SiO2:ZrO2:H2O=7.5:1:7.5:0.5:200 mol ratio feeds intake, and is oriented to while adding Agent is (with total Al that sodium metaaluminate and aluminum sulfate are provided2O3Quality meter, the addition of directed agents is total Al2O35%), stirring After mixing 10 hours, mixture A is obtained;
(4) by said mixture A in 110 DEG C of crystallization 24h, then going with quality 8 times crystallization product (based on butts) Crystallization product is washed ionized water and sucking filtration, dry 5 hours at 100 DEG C again, prepared Y/ZrO2(solid is produced composite Product).
In the Y/ZrO2In composite, the relative crystallinity of Y type molecular sieve is 38.37%, and specific surface is 504m2/ g, always Pore volume is 0.345cm3/ g, the granularity of product concentrate on 140nm or so.
Embodiment 5
Present embodiments provide a kind of Y/ZrO2Composite, concrete preparation method are as follows:
(1) it is 4 in molar ratio by sodium hydroxide and zirconium oxychloride:1 mixed grinding 20 minutes, is obtained zirconium dioxide forerunner Body;
(2) sodium hydroxide, sodium metaaluminate, waterglass and deionized water are pressed into Na2O:Al2O3:SiO2:H2O=16:1: 13:300 mixed in molar ratio, after stirring 50 minutes, stands 18 hours at room temperature, directed agents is obtained;
(3) under room temperature by above-mentioned zirconium dioxide presoma and sodium hydroxide, sodium metaaluminate, aluminum sulfate, waterglass and go from Sub- water is according to Na2O:Al2O3:SiO2:ZrO2:H2O=6:1:9:1.8:150 mol ratio feeds intake, and while add directed agents (with Total Al that sodium metaaluminate and aluminum sulfate are provided2O3Quality meter, the addition of directed agents is total Al2O35%), stirring mixing 1 After hour, mixture A is obtained;
(4) by said mixture A in 100 DEG C of crystallization 24h, then going with quality 9 times crystallization product (based on butts) Crystallization product is washed ionized water and sucking filtration, dry 4 hours at 120 DEG C again, prepared Y/ZrO2(solid is produced composite Product).
In the Y/ZrO2In composite, the relative crystallinity of Y type molecular sieve is 41.2%, and specific surface is 368m2/ g, always Pore volume is 0.35cm3/ g, the granularity of product concentrate on 180nm or so.
Embodiment 6
Present embodiments provide a kind of Y/ZrO2Composite, concrete preparation method are as follows:
(1) it is 4 in molar ratio by sodium hydroxide and zirconium oxychloride:1 mixed grinding 20 minutes, is obtained zirconium dioxide forerunner Body;
(2) sodium hydroxide, sodium metaaluminate, Ludox and deionized water are pressed into Na2O:Al2O3:SiO2:H2O=16:1: 19:270 mixed in molar ratio, after stirring 60 minutes, stands 24 hours at room temperature, directed agents is obtained;
(3) under room temperature by above-mentioned zirconium dioxide presoma and sodium hydroxide, sodium metaaluminate, aluminum sulfate, Ludox and go from Sub- water is according to Na2O:Al2O3:SiO2:ZrO2:H2O=7.5:1:7.5:3.75:180 mol ratio feeds intake, and is oriented to while adding Agent is (with total Al that sodium metaaluminate and aluminum sulfate are provided2O3Quality meter, the addition of directed agents is total Al2O35%), stirring After mixing 10 hours, mixture A is obtained;
(4) by said mixture A in 110 DEG C of crystallization 24h, then going with quality 9 times crystallization product (based on butts) Crystallization product is washed ionized water and sucking filtration, dry 5 hours at 100 DEG C again, prepared Y/ZrO2(solid is produced composite Product).
In the Y/ZrO2In composite, the relative crystallinity of Y type molecular sieve is 24.6%, and specific surface is 361m2/ g, always Pore volume is 0.24cm3/ g, the granularity of product concentrate on 150nm or so.

Claims (10)

1. the Y/ZrO that a kind of employing directing agent method synthesizes2The method of composite, wherein, the method is by zirconium dioxide presoma ZrOx(OH)y, 0≤x≤2,0≤y≤4 are added in the Hydrothermal Synthesiss system that directing agent method prepares Y type molecular sieve, and pass through crystalline substance Change is processed makes zirconium dioxide and the common crystallization growth of Y type molecular sieve, finally obtains Y/ZrO2Composite.
2. the Y/ZrO that employing directing agent method according to claim 1 synthesizes2The method of composite, wherein, the method bag Include following steps:
To be stirred for alkali source, silicon source, silicon source, directed agents and the water and zirconium dioxide presoma that prepare Y type molecular sieve Mixing, obtains mixture A;
Hydrothermal crystallizing process is carried out to the mixture A, then carries out washing by hydrothermal crystallizing product, dried, obtain Y/ ZrO2Composite.
3. the Y/ZrO that employing directing agent method according to claim 1 and 2 synthesizes2The method of composite, wherein, titanium dioxide The consumption of zirconium precursor body and silicon source is respectively with ZrO2And Al2O3Molar ratio computing, ZrO2:Al2O3=(1-5):1.
4. the Y/ZrO that employing directing agent method according to claim 1 synthesizes2The method of composite, wherein, the dioxy Change zirconium precursor body to be obtained by grinding by the mixture of sodium hydroxide and the inorganic salt of zirconium;
Preferably, the mol ratio of the inorganic salt of the sodium hydroxide and zirconium is (2-4):1;
It is further preferred that the inorganic salt of the zirconium includes zirconyl nitrate or zirconium oxychloride.
5. the Y/ZrO that employing directing agent method according to claim 2 synthesizes2The method of composite, wherein, the alkali source For sodium hydroxide, source of aluminium is sodium metaaluminate and/or aluminum sulfate, and the silicon source is waterglass and/or Ludox.
6. the Y/ZrO that employing directing agent method according to claim 2 synthesizes2The method of composite, wherein, prepare Y types point The mole dosage ratio of alkali source, silicon source, silicon source and water that son is sieved is Na2O:Al2O3:SiO2:H2O=(1-10):1:(6-15): (150-350);Preferably, Na2O:Al2O3:SiO2:H2O=(3-8):1:(8-9):(100-200).
7. the Y/ZrO that employing directing agent method according to claim 2 synthesizes2The method of composite, wherein, the guiding Agent is prepared by the following method:
Sodium hydroxide, sodium metaaluminate and/or aluminum sulfate, waterglass and/or Ludox and water are pressed into Na2O:Al2O3:SiO2:H2O =(12-18):1:(10-16);(100-350) mixed in molar ratio, after stirring 30-90 minutes, stands 6-24 little at room temperature When, directed agents are obtained.
8. the Y/ZrO that the employing directing agent method according to any one of claim 2-7 synthesizes2The method of composite, wherein, The condition of the hydrothermal crystallizing is:Crystallization 4-48h at 90-120 DEG C.
9. Y/ZrO obtained in a kind of method described in any one of utilization claim 1-82Composite.
10. the Y/ZrO described in a kind of utilization claim 92Catalyst obtained in composite;
Preferably, the catalyst includes catalytic cracking catalyst or hydrocracking catalyst.
CN201611064168.4A 2016-11-28 2016-11-28 A kind of Y/ZrO of directing agent method synthesis2Composite and preparation method thereof Active CN106587147B (en)

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CN110627089A (en) * 2019-10-10 2019-12-31 中国石油大学(北京) Mesoporous Y-type molecular sieve and preparation method and application thereof
CN111468097A (en) * 2020-03-24 2020-07-31 福州大学化肥催化剂国家工程研究中心 Catalytic cracking catalyst, preparation method and application thereof
CN113860344A (en) * 2020-06-30 2021-12-31 中国石油天然气股份有限公司 Porous alumina matrix with high hydrothermal stability and preparation method thereof

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