CN106315617A - Preparing method for Cu-SAPO-18 molecular sieve catalyst of high hydrothermal stability - Google Patents
Preparing method for Cu-SAPO-18 molecular sieve catalyst of high hydrothermal stability Download PDFInfo
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- CN106315617A CN106315617A CN201610715873.XA CN201610715873A CN106315617A CN 106315617 A CN106315617 A CN 106315617A CN 201610715873 A CN201610715873 A CN 201610715873A CN 106315617 A CN106315617 A CN 106315617A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 43
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 31
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title abstract description 5
- 238000011065 in-situ storage Methods 0.000 claims abstract description 10
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229960001124 trientine Drugs 0.000 claims abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 8
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 8
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000011574 phosphorus Substances 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 6
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 6
- 239000011736 potassium bicarbonate Substances 0.000 claims description 6
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 4
- IDWRJRPUIXRFRX-UHFFFAOYSA-N 3,5-dimethylpiperidine Chemical compound CC1CNCC(C)C1 IDWRJRPUIXRFRX-UHFFFAOYSA-N 0.000 claims description 3
- OKJPEAGHQZHRQV-UHFFFAOYSA-N Triiodomethane Natural products IC(I)I OKJPEAGHQZHRQV-UHFFFAOYSA-N 0.000 claims description 3
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910019142 PO4 Inorganic materials 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 2
- 239000010452 phosphate Substances 0.000 abstract 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 230000009466 transformation Effects 0.000 description 3
- VOZKAJLKRJDJLL-UHFFFAOYSA-N 2,4-diaminotoluene Chemical compound CC1=CC=C(N)C=C1N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 2
- 230000003679 aging effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B39/54—Phosphates, e.g. APO or SAPO compounds
-
- 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
- B01J29/82—Phosphates
- B01J29/84—Aluminophosphates containing other elements, e.g. metals, boron
- B01J29/85—Silicoaluminophosphates [SAPO compounds]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B37/00—Compounds having molecular sieve properties but not having base-exchange properties
- C01B37/06—Aluminophosphates containing other elements, e.g. metals, boron
- C01B37/08—Silicoaluminophosphates [SAPO compounds], e.g. CoSAPO
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Catalysts (AREA)
Abstract
The invention provides a preparing method for Cu-SAPO-18 molecular sieve catalyst of high hydrothermal stability. The invention relates to the field of treatment technology of exhaust gas of diesel engine. The sources of aluminum, phosphorus, silicon, and template for the in-situ synthesis of Cu-SAPO-18 molecular sieve catalyst are respectively Al2O3, phosphate, silica sol, trien and DMDMP, the source of metal is copper sulfate pentahydrate; by weight, it comprises 49 parts of Al2O3, 85 parts of phosphate, 27 parts of 40 wt % silica sol, 16.4 parts of trien, 12.6 parts of DMDMP and 10-25 parts of copper sulfate pentahydrate. Compared with the prior art, the Cu-SAPO-18 molecular sieve catalyst produced by the method has such advantages as high activity and high hydrothermal stability; new catalyst can have a conversion efficiency of more than 90% at the temperature range of 230-465oC; aged catalyst can maintain a conversion efficiency of more than 86% at the temperature range of 230-465oC after being placed in an environment of 750oC for 13h; the highest conversion efficiency of traditional V-W-TiO2 based catalyst is less than 60% after aging.
Description
Technical field
The present invention relates to diesel engine exhaust gas treatment technical field, particularly relate to the Cu-SAPO-18 of a kind of high hydrothermal stability
The preparation method of molecular sieve catalyst.
Background technology
Diesel engine, because economy is high, dynamic performance superiority, is at home and abroad widely used.Master in exhaust gas from diesel vehicle
The noxious pollutant wanted is carbon soot particles (PM), nitrogen oxides (NOx), has severely compromised ecological environment and human health.
Ammine selectivity catalytic reduction technology (NH3-SCR) it is a kind of widely used denitration technology.At present, V-W-TiO2Base
Catalyst is the most the most frequently used NH3-SCR catalyst, but its active temperature windows is narrow, and hydrothermal stability is poor, it is impossible to full
The discharge standard that foot is the strictest.
Summary of the invention
It is an object of the invention to provide the preparation side of the Cu-SAPO-18 molecular sieve catalyst of a kind of high hydrothermal stability
Method, to solve above-mentioned technical problem.
The technical problem to be solved realizes by the following technical solutions:
A kind of preparation method of the Cu-SAPO-18 molecular sieve catalyst of high hydrothermal stability, it is characterised in that: close in situ
Becoming the aluminum source of Cu-SAPO-18 molecular sieve catalyst, phosphorus source, silicon source, template, co-template is Al respectively2O3, phosphoric acid, silicon molten
Glue, trien, DMDMP (N, N-dimethyl-3,5 lupetidines), source metal is copper sulfate pentahydrate；
By quality proportioning: Al2O349 parts, phosphoric acid 85 parts, 40wt% Ludox 27 parts, trien 16.4 parts,
DMDMP 12.6 parts, copper sulfate pentahydrate 10-25 part；
Fabricated in situ Cu-SAPO-18 molecular sieve catalyst, comprises the following steps:
(1) DMDMP synthesis
By quality proportioning, by 3,5-lupetidine 10 parts and potassium bicarbonate 19 parts join in methanol 120 parts, then by
It is added dropwise to iodomethane 110 parts, at room temperature, stirs 0.5-5 days, obtain solution A；
Solution A is filtered, removes potassium bicarbonate, obtain liquor B；Liquor B chloroform washing removes Organic substance, separation
Obtain solution C；Solution C MgSO4It is dried and removes water, be filtrated to get solution D；In solution D, add ether, separate out quaternary ammonium salt；
Quaternary ammonium salt hydroxide anion exchanger resin, finally prepares DMDMP；
(2) fabricated in situ Cu-SAPO-18 molecular sieve catalyst
In Cu-SAPO-18 preparation process, copper sulfate is configured to copper-bath, by copper-bath and triethylene four
Amine mixes, and stirs 2h, obtained solution F；
Distilled water and phosphoric acid are joined in solution F, system to gel mixture G, stir 5min；
DMDMP is joined in gel mixture G, obtain gel H；
By Al2O3Join with Ludox and gel H prepares gel I, stir 30min；
Transfer to gel I heat with in teflon-lined reactor, obtain crystallized product J；
The crystallized product J obtained is washed with deionized, and filters, obtains filter cake, and 100 DEG C of dry 12h of filter cake, 550 DEG C of roastings
Burn 5h, i.e. obtain Cu-SAPO-18 molecular sieve catalyst.
As preferably, the temperature that gel I heats in a kettle. is 160-200 DEG C.
The invention has the beneficial effects as follows:
Compared with prior art, Cu-SAPO-18 molecular sieve catalyst of the present invention has high activity, high hydrothermal stability
Advantage；Fresh catalyst has the transformation efficiency of more than 90% in 230-465 DEG C of temperature range；Through 750 DEG C, after 13h, always
Change catalyst and remain to keep the transformation efficiency of more than 86% 230-465 DEG C of temperature range；And tradition V-W-TiO2Base catalyst
After aging, the highest transformation efficiency is less than 60%.
Accompanying drawing explanation
Fig. 1 is Cu-SAPO-18 molecular sieve catalyst fresh activity figure.
Fig. 2 is Cu-SAPO-18 molecular sieve catalyst aging activity figure (aging condition: 750 DEG C, 13 hours).
Fig. 3 is Cu-SAPO-18 molecular sieve catalyst XRD figure.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot
Close specific embodiment, the present invention is expanded on further, but following embodiment is only the preferred embodiments of the present invention, and not all.
Based on the embodiment in embodiment, it is real that those skilled in the art are obtained other on the premise of not making creative work
Execute example, broadly fall into protection scope of the present invention.
Embodiment 1
The preparation method of the Cu-SAPO-18 molecular sieve catalyst of high hydrothermal stability, fabricated in situ Cu-SAPO-18 molecule
The aluminum source of sieve catalyst, phosphorus source, silicon source, template, co-template are Al respectively2O3, phosphoric acid, Ludox, trien,
DMDMP (N, N-dimethyl-3,5 lupetidines), source metal is copper sulfate pentahydrate；
By quality proportioning: Al2O349 parts, phosphoric acid 85 parts, 40wt% Ludox 27 parts, trien 16.4 parts,
DMDMP 12.6 parts, copper sulfate pentahydrate 10-25 part；
Fabricated in situ Cu-SAPO-18 molecular sieve catalyst, comprises the following steps:
(1) DMDMP synthesis
By quality proportioning, by 3,5-lupetidine 10 parts and potassium bicarbonate 19 parts join in methanol 120 parts, then by
It is added dropwise to iodomethane 110 parts, at room temperature, stirs 0.5-5 days, obtain solution A；
Solution A is filtered, removes potassium bicarbonate, obtain liquor B；Liquor B chloroform washing removes Organic substance, separation
Obtain solution C；Solution C MgSO4It is dried and removes water, be filtrated to get solution D；In solution D, add ether, separate out quaternary ammonium salt；
Quaternary ammonium salt hydroxide anion exchanger resin, finally prepares DMDMP；
(2) fabricated in situ Cu-SAPO-18 molecular sieve catalyst
In Cu-SAPO-18 preparation process, copper sulfate is configured to copper-bath, by copper-bath and triethylene four
Amine mixes, and stirs 2h, obtained solution F；
Distilled water and phosphoric acid are joined in solution F, system to gel mixture G, stir 5min；
DMDMP is joined in gel mixture G, obtain gel H；
By Al2O3Join with Ludox and gel H prepares gel I, stir 30min；
Transfer to gel I heat with in teflon-lined reactor, obtain crystallized product J；
The crystallized product J obtained is washed with deionized, and filters, obtains filter cake, and 100 DEG C of dry 12h of filter cake, 550 DEG C of roastings
Burn 5h, i.e. obtain Cu-SAPO-18 molecular sieve catalyst.
In the present invention, the evaluation of catalyst is adopted with the following method:
2gCu-SAPO-18 catalyst fines is mixed with 5g distilled water, prepares serosity, be coated on cordierite honeycomb ceramic
Matrix sample, catalyst coated weight is about 200g/L, and sample is dried 2 hours at 100 DEG C, and 500 DEG C of roastings 5 hours are preparation
Monoblock type Cu-SAPO-18 molecular sieve catalyst, put it in fixed bed activity rating device, simulated flue gas consists of
1000ppm NO, 1100ppm NH3, 10%O2And 10%H2O, reaction velocity is 40,000h-1。
The Cu-SAPO-18 activity of molecular sieve catalysts that above-described embodiment 1 is prepared is as Figure 1-3.
Fig. 1 is Cu-SAPO-18 molecular sieve catalyst fresh activity figure.
Fig. 2 is Cu-SAPO-18 molecular sieve catalyst aging activity figure (aging condition: 750 DEG C, 13 hours).
Fig. 3 is Cu-SAPO-18 molecular sieve catalyst XRD figure.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
The personnel only present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description
Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements both fall within scope of the claimed invention.Claimed scope is by institute
Attached claims and equivalent thereof define.
Claims (2)
1. the preparation method of the Cu-SAPO-18 molecular sieve catalyst of a high hydrothermal stability, it is characterised in that: fabricated in situ
The aluminum source of Cu-SAPO-18 molecular sieve catalyst, phosphorus source, silicon source, template, co-template are Al respectively2O3, phosphoric acid, Ludox,
Trien, DMDMP, source metal is copper sulfate pentahydrate；
By quality proportioning: Al2O349 parts, phosphoric acid 85 parts, 40wt% Ludox 27 parts, trien 16.4 parts, DMDMP
12.6 parts, copper sulfate pentahydrate 10-25 part；
Fabricated in situ Cu-SAPO-18 molecular sieve catalyst, comprises the following steps:
(1) DMDMP synthesis
By quality proportioning, by 3,5-lupetidine 10 parts and potassium bicarbonate 19 parts join in methanol 120 parts, the most dropwise add
Enter iodomethane 110 parts, at room temperature, stir 0.5-5 days, obtain solution A；
Solution A is filtered, removes potassium bicarbonate, obtain liquor B；Liquor B chloroform washing removes Organic substance, isolated
Solution C；Solution C MgSO4It is dried and removes water, be filtrated to get solution D；In solution D, add ether, separate out quaternary ammonium salt；Quaternary ammonium
Salt hydroxide anion exchanger resin, finally prepares DMDMP；
(2) fabricated in situ Cu-SAPO-18 molecular sieve catalyst
In Cu-SAPO-18 preparation process, copper sulfate is configured to copper-bath, copper-bath and trien is mixed
Close, stir 2h, obtained solution F；
Distilled water and phosphoric acid are joined in solution F, system to gel mixture G, stir 5min；
DMDMP is joined in gel mixture G, obtain gel H；
By Al2O3Join with Ludox and gel H prepares gel I, stir 30min；
Transfer to gel I heat with in teflon-lined reactor, obtain crystallized product J；
The crystallized product J obtained is washed with deionized, and filters, obtains filter cake, 100 DEG C of dry 12h of filter cake, at 550 DEG C of roasting 5h,
I.e. obtain Cu-SAPO-18 molecular sieve catalyst.
The preparation method of the Cu-SAPO-18 molecular sieve catalyst of high hydrothermal stability the most according to claim 1, it is special
Levy and be: the temperature that gel I heats in a kettle. is 160-200 DEG C.
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| CN201610715873.XA CN106315617A (en) | 2016-08-24 | 2016-08-24 | Preparing method for Cu-SAPO-18 molecular sieve catalyst of high hydrothermal stability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914273A (en) * | 2017-02-23 | 2017-07-04 | 华中科技大学 | The preparation method and its usage of the molecular sieve catalysts of one-step method fabricated in situ Cu SAPO 18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2246111A2 (en) * | 2007-03-26 | 2010-11-03 | PQ Corporation | Novel microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure and methods of making and using same |
| CN101948120A (en) * | 2010-09-08 | 2011-01-19 | 久泰能源科技有限公司 | SAPO-18 molecular sieve catalyst for producing low-carbon olefin and preparation method thereof |
| CN104209141A (en) * | 2014-09-24 | 2014-12-17 | 中国科学院生态环境研究中心 | Cu-SAPO-34 molecular sieve catalyst and preparation method and application thereof |
| WO2015185781A1 (en) * | 2014-06-03 | 2015-12-10 | Consejo Superior De Investigaciones Científicas (Csic) | Synthesis of sapo-18 and the catalytic applications thereof |
-
2016
- 2016-08-24 CN CN201610715873.XA patent/CN106315617A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2246111A2 (en) * | 2007-03-26 | 2010-11-03 | PQ Corporation | Novel microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure and methods of making and using same |
| CN101948120A (en) * | 2010-09-08 | 2011-01-19 | 久泰能源科技有限公司 | SAPO-18 molecular sieve catalyst for producing low-carbon olefin and preparation method thereof |
| WO2015185781A1 (en) * | 2014-06-03 | 2015-12-10 | Consejo Superior De Investigaciones Científicas (Csic) | Synthesis of sapo-18 and the catalytic applications thereof |
| CN104209141A (en) * | 2014-09-24 | 2014-12-17 | 中国科学院生态环境研究中心 | Cu-SAPO-34 molecular sieve catalyst and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| RAQUEL MARTÍNEZ-FRANCO,ET AL.: "Direct synthesis design of Cu-SAPO-18, a very efficient catalyst for the SCR of NOx", 《JOURNAL OF CATALYSIS》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914273A (en) * | 2017-02-23 | 2017-07-04 | 华中科技大学 | The preparation method and its usage of the molecular sieve catalysts of one-step method fabricated in situ Cu SAPO 18 |
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Address after: Double Dunzhen Changfeng County of Hefei City, Anhui province 231100 Applicant after: Hefei Shenzhou catalytic purifier Limited by Share Ltd Address before: Double Dunzhen Changfeng County of Hefei City, Anhui province 231100 Applicant before: Catalytic cleaner Co., Ltd of Hefei divine boat |
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Application publication date: 20170111 |