CN112871153A - Catalyst for normal-temperature combustion of methanol and preparation method thereof - Google Patents
Catalyst for normal-temperature combustion of methanol and preparation method thereof Download PDFInfo
- Publication number
- CN112871153A CN112871153A CN202110046533.3A CN202110046533A CN112871153A CN 112871153 A CN112871153 A CN 112871153A CN 202110046533 A CN202110046533 A CN 202110046533A CN 112871153 A CN112871153 A CN 112871153A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- carrier
- noble metal
- spraying
- methanol
- 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
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 89
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title abstract description 24
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 58
- 238000005507 spraying Methods 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000001354 calcination Methods 0.000 claims abstract description 15
- 150000002500 ions Chemical class 0.000 claims abstract description 14
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 50
- 229910052697 platinum Inorganic materials 0.000 claims description 31
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 27
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 24
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 22
- 230000003647 oxidation Effects 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 14
- 229910052763 palladium Inorganic materials 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 239000010948 rhodium Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract description 2
- 239000012876 carrier material Substances 0.000 abstract 1
- 238000006722 reduction reaction Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 28
- 239000002253 acid Substances 0.000 description 21
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 18
- -1 platinum ions Chemical class 0.000 description 12
- 239000011259 mixed solution Substances 0.000 description 8
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- MUJIDPITZJWBSW-UHFFFAOYSA-N palladium(2+) Chemical compound [Pd+2] MUJIDPITZJWBSW-UHFFFAOYSA-N 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
Classifications
-
- B01J35/394—
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- B01J35/51—
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
Abstract
The invention relates to a catalyst for normal-temperature combustion of methanol and a preparation method thereof. The method adopts a spraying device to spray a solution containing noble metal ions on a carrier, and then carries out calcination and reduction reactions to convert the noble metal from an ionic form into a simple substance which is uniformly dispersed on the surface of the carrier. The carrier used in the invention is spherical, so that the noble metal can be distributed more uniformly, the higher the dispersity is, the better the catalyst activity is, and the faster the methanol is ignited. In the method provided by the invention, the carrier material not only reduces the dosage of the noble metal in the catalyst, but also improves the catalytic performance of the catalyst and the stability of the catalyst. The catalyst has high preparation efficiency and can be used for preparing the catalyst in a relatively large scale.
Description
Technical Field
The invention relates to the technical field of catalysis, in particular to a catalyst for normal-temperature combustion of methanol and a preparation method thereof.
Background
With the development of new energy technology, methanol is widely applied to various fields due to the characteristics of high cost performance, easily available raw materials, large latent heat of vaporization, low cetane number and the like. In the industrial waste gas treatment, in the fields of civil heating equipment or fuel cells, etc., the methanol combustion catalyst is always a hot point of research.
From the prior art, a plurality of problems exist, and how to quickly ignite the methanol at normal temperature without external heating is the first time, so that the purposes of saving energy and improving efficiency are achieved. Besides, noble metals are expensive as effective active components in catalysts, and how to improve the catalytic efficiency and activity of noble metals is also a key problem under the condition of the same cost.
Disclosure of Invention
Therefore, the invention provides the catalyst for normal-temperature combustion of methanol and the preparation method thereof, and the catalyst can realize quick start of liquid fuel without external heat supply and has high heat efficiency and fuel conversion rate.
The invention is realized by the following technical scheme:
a methanol normal temperature combustion catalyst comprises a noble metal component and a carrier; the mass percentage of the noble metal component is 0.01-0.5%, and the mass percentage of the carrier is 99.5-99.99%.
Further, the noble metal component is at least one of platinum, palladium, ruthenium and rhodium.
Further, the carrier is one of alumina and titanium oxide or a combination of the two.
Further, the preparation method of the catalyst comprises the following steps:
s10: preparing a solution containing noble metal ions by using ionized water or absolute ethyl alcohol;
s20: spraying the solution containing the noble metal ions onto a carrier through a spraying device, wherein the carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at the temperature of 100-180 ℃ for 4-12h, and finally calcining at the constant temperature of 400-600 ℃ for 3-10 h; obtaining the catalyst in an oxidation state;
s30: and reducing the catalyst in the oxidation state to obtain the catalyst.
Furthermore, in the solution containing the noble metal ions, the mass percentage of the noble metal ions is 0.05-1%. The preparation method of the solution containing the noble metal ions comprises the following steps: one or more of chloroplatinic acid, palladium chloride, ruthenium chloride and rhodium chloride are dissolved in deionized water.
Further, the carrier is a sphere with the diameter of 3-5mm and the specific surface area of 200m2More than g.
In summary, the catalyst and the preparation method thereof provided by the invention have one or more of the following advantages or beneficial effects:
1. the catalyst provided by the invention can ignite methanol at normal temperature, can quickly rise from room temperature to 800 ℃, and simplifies the heating step in the methanol combustion process, thereby simplifying the complexity of equipment, saving energy and saving time.
2. The invention adopts alumina or titanium oxide as a carrier, and the two materials have lower cost and are easy to obtain; meanwhile, the dosage of the noble metal is controlled to be 0.01-0.5%, and the cost is controlled while the catalytic efficiency is ensured.
3. The carrier adopted by the invention is spherical, the diameter is 3-5mm, and the specific surface area is 200m2More than g, the active components can be distributed more uniformly, the dispersion degree is higher, and the ignition is faster.
4. The invention adopts the method of spraying the noble metal ions on the carrier, the noble metal ions are uniformly distributed in the solution and then are uniformly sprayed on the carrier, the dispersion degree and the activity of the noble metal ions are increased, the consumption of the noble metal is reduced, the catalytic performance and the stability of the catalyst are improved, and the catalytic efficiency of the catalyst is higher.
5. The preparation method provided by the invention is simple, has lower requirements on equipment, and can be widely applied to industrial production.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of the preparation of a catalyst.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The catalyst provided by the invention has simple components, and comprises a noble metal component and a carrier; the noble metal component is at least one of platinum, palladium, ruthenium and rhodium, and the carrier is alumina or titania or a combination of alumina and titania. The preparation process is shown in fig. 1 by preparing a solution containing noble metal ions and attaching the solution to a carrier in a spray manner. The carrier is selected from spheres with a diameter of 3-5mm, and the specific surface area is required to be 200m2The catalyst prepared by the method has the advantages of uniform distribution of the noble metal components, higher dispersion degree, high thermal efficiency and high fuel conversion rate.
[ example 1 ]
A methanol normal temperature combustion catalyst comprises 0.01 percent of noble metal component and 99.99 percent of carrier by mass; the noble metal component is platinum and the carrier is alumina.
The preparation method comprises the following steps:
s10: preparing a chloroplatinic acid solution with platinum ions of which the mass fraction is 0.05% by using ionized water;
s20: spraying 20g of chloroplatinic acid solution onto 100g of alumina carrier through a spraying device, wherein the alumina carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 165 ℃ for 5h, and finally calcining at constant temperature of 400-600 ℃ for 3-10 h; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to give catalyst 1.
[ example 2 ]
A methanol normal temperature combustion catalyst comprises 0.02 percent of noble metal component and 99.98 percent of carrier by mass; the noble metal component is platinum and the carrier is alumina.
The preparation method comprises the following steps:
s10: preparing a chloroplatinic acid solution with platinum ion concentration of 0.2% by using absolute ethyl alcohol;
s20: spraying 10g of chloroplatinic acid solution onto 100g of alumina carrier through a spraying device, wherein the alumina carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 145 ℃ for 7h, and finally calcining at 400 ℃ for 10h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to obtain catalyst 2.
[ example 3 ]
A methanol normal temperature combustion catalyst comprises 0.05 percent of noble metal component and 99.95 percent of carrier by mass; the noble metal component is platinum and the carrier is alumina.
The preparation method comprises the following steps:
s10: preparing a chloroplatinic acid solution with platinum ion concentration of 0.5% by using ionized water;
s20: spraying 10g of chloroplatinic acid solution onto 100g of alumina carrier through a spraying device, wherein the alumina carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 125 ℃ for 8h, and finally calcining at 420 ℃ for 9h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to obtain catalyst 3.
[ example 4 ]
A methanol normal temperature combustion catalyst comprises 0.1 percent of noble metal component and 99.9 percent of carrier by mass; the noble metal component is platinum and the carrier is alumina.
The preparation method comprises the following steps:
s10: preparing a chloroplatinic acid solution with platinum ion concentration of 0.5% by using absolute ethyl alcohol;
s20: spraying 20g of chloroplatinic acid solution onto 100g of alumina carrier through a spraying device, wherein the alumina carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 180 ℃ for 4h, and finally calcining at 440 ℃ for 8h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to obtain catalyst 4.
[ example 5 ]
A methanol normal temperature combustion catalyst comprises 0.5 percent of noble metal component and 99.5 percent of carrier by mass; the noble metal component is platinum and the carrier is alumina.
The preparation method comprises the following steps:
s10: preparing a chloroplatinic acid solution with platinum ion concentration of 1% by using ionized water;
s20: spraying 50g of chloroplatinic acid solution onto 100g of alumina carrier through a spraying device, wherein the alumina carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 170 ℃ for 5h, and finally calcining at 460 ℃ for 7 h; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to obtain catalyst 5.
[ example 6 ]
A methanol normal temperature combustion catalyst comprises 0.02 percent of noble metal component and 99.98 percent of carrier by mass; the noble metal component is platinum and the carrier is titanium oxide.
The preparation method comprises the following steps:
s10: preparing a chloroplatinic acid solution with platinum ion concentration of 0.2% by using absolute ethyl alcohol;
s20: spraying 10g of chloroplatinic acid solution onto 100g of titanium oxide carrier through a spraying device, wherein the titanium oxide carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 160 ℃ for 6h, and finally calcining at 480 ℃ for 6h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to obtain catalyst 6.
[ example 7 ]
A methanol normal temperature combustion catalyst comprises 0.05 percent of noble metal component and 99.95 percent of carrier by mass; the noble metal component is platinum and the carrier is titanium oxide.
The preparation method comprises the following steps:
s10: preparing a chloroplatinic acid solution with platinum ion concentration of 0.2% by using ionized water;
s20: spraying 25g of chloroplatinic acid solution onto 100g of titanium oxide carrier through a spraying device, wherein the titanium oxide carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 150 ℃ for 7h, and finally calcining at 500 ℃ for 5h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to give catalyst 7.
[ example 8 ]
A methanol normal temperature combustion catalyst comprises 0.1 percent of noble metal component and 99.9 percent of carrier by mass; the noble metal component is platinum and the carrier is titanium oxide.
The preparation method comprises the following steps:
s10: preparing a chloroplatinic acid solution with platinum ion concentration of 0.4% by using absolute ethyl alcohol;
s20: spraying 25g of chloroplatinic acid solution onto 100g of titanium oxide carrier through a spraying device, wherein the titanium oxide carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 140 ℃ for 8h, and finally calcining at 520 ℃ for 4h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to obtain catalyst 8.
[ example 9 ]
A methanol normal temperature combustion catalyst comprises 0.1 percent of noble metal component and 99.9 percent of carrier by mass; the noble metal component is platinum and palladium, the mass ratio of the platinum to the palladium is 0.05 percent, and the carrier is titanium oxide.
The preparation method comprises the following steps:
s10: preparing a mixed solution of chloroplatinic acid and palladium chloride with platinum ion and palladium ion concentrations of 0.5% by using ionized water;
s20: spraying 10g of the mixed solution onto 100g of titanium oxide carrier through a spraying device, wherein the titanium oxide carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 130 ℃ for 9h, and finally calcining at 540 ℃ for 3h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to obtain catalyst 9.
[ example 10 ]
A methanol normal temperature combustion catalyst comprises 0.2 percent of noble metal component and 99.8 percent of carrier by mass; the noble metal component is platinum and palladium, the mass ratio of the platinum to the palladium is 0.1%, and the carrier is titanium oxide.
The preparation method comprises the following steps:
s10: preparing a mixed solution of chloroplatinic acid and palladium chloride with platinum ion and palladium ion concentrations of 0.4% by using absolute ethyl alcohol;
s20: spraying 25g of the mixed solution onto 100g of titanium oxide carrier through a spraying device, wherein the titanium oxide carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 120 ℃ for 10h, and finally calcining at 560 ℃ for 3h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to provide catalyst 10.
[ example 11 ]
A methanol normal temperature combustion catalyst comprises 0.1 percent of noble metal component and 99.9 percent of carrier by mass; the noble metal component is platinum and palladium, the mass ratio of the platinum to the palladium is 0.05 percent, and the carrier is alumina.
The preparation method comprises the following steps:
s10: preparing a mixed solution of chloroplatinic acid and palladium chloride with platinum ion and palladium ion concentrations of 0.05% by using ionized water;
s20: spraying 100g of the mixed solution onto 100g of the alumina carrier through a spraying device, wherein the alumina carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 110 ℃ for 11h, and finally calcining at 580 ℃ for 3h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to obtain catalyst 11.
[ example 12 ]
A methanol normal temperature combustion catalyst comprises 0.2 percent of noble metal component and 99.8 percent of carrier by mass; the noble metal component is platinum and palladium, the mass ratio of the platinum to the palladium is 0.1%, and the carrier is alumina.
The preparation method comprises the following steps:
s10: preparing a mixed solution of chloroplatinic acid and palladium chloride with platinum ion and palladium ion concentrations of 0.1% by using absolute ethyl alcohol;
s20: spraying 100g of the mixed solution onto 100g of the alumina carrier through a spraying device, wherein the alumina carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at 100 ℃ for 12h, and finally calcining at 600 ℃ for 3h at constant temperature; obtaining the catalyst in an oxidation state;
s30: the catalyst in the oxidized state is reduced to provide catalyst 12.
In the normal-temperature methanol combustion reaction of the catalysts 1-12, the catalytic efficiency is 100%, and the following experimental tests are carried out from the angle of the temperature rise time of the catalytic reaction:
20ml of each catalyst was charged in a 2520 stainless steel tubular reactor having a diameter of 25X 2.5X 100mm, air and liquid methanol were introduced at the inlet, and the flow rate was 2Nm at room temperature3The air/h was bubbled through a vessel containing methanol, which brought the naturally volatile methanol into the reactor, and the temperature measurement point was placed in the catalyst bed, with the test results shown in table 1 below.
TABLE 1 temperature rise time of catalysts 1-12
As can be seen from the above table: the more the noble metal is added, the better the catalytic effect is; the catalyst effect of the catalyst taking alumina as a carrier is better than that of the catalyst taking titanium oxide as a carrier; when the active component is the combination of two noble metals, the temperature rising capability is better than that of a single noble metal catalyst, and when the total mass of the noble metals accounts for 0.2%, the catalytic effect is best.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A methanol normal temperature combustion catalyst is characterized by comprising a noble metal component and a carrier; the mass percentage of the noble metal component is 0.01-0.5%, and the mass percentage of the carrier is 99.5-99.99%.
2. The catalyst of claim 1 wherein the noble metal component is at least one of platinum, palladium, ruthenium, rhodium.
3. The catalyst of claim 1 wherein the support is one or a combination of alumina and titania.
4. A process for preparing a catalyst as claimed in any one of claims 1 to 3, comprising the steps of:
s10: preparing a solution containing noble metal ions by using ionized water or absolute ethyl alcohol;
s20: spraying the solution containing the noble metal ions onto a carrier through a spraying device, wherein the carrier is continuously and uniformly turned over in the spraying process; after spraying, airing at room temperature for 12h, then drying at the temperature of 100-180 ℃ for 4-12h, and finally calcining at the constant temperature of 400-600 ℃ for 3-10 h; obtaining the catalyst in an oxidation state;
s30: and reducing the catalyst in the oxidation state to obtain the catalyst.
5. The method according to claim 4, wherein the noble metal ion is contained in the solution containing the noble metal ion in an amount of 0.05 to 1% by mass.
6. The process according to claim 4, wherein the carrier is a sphere having a diameter of 3 to 5mm and a specific surface area of 200m2More than g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110046533.3A CN112871153A (en) | 2021-01-14 | 2021-01-14 | Catalyst for normal-temperature combustion of methanol and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110046533.3A CN112871153A (en) | 2021-01-14 | 2021-01-14 | Catalyst for normal-temperature combustion of methanol and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112871153A true CN112871153A (en) | 2021-06-01 |
Family
ID=76045950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110046533.3A Pending CN112871153A (en) | 2021-01-14 | 2021-01-14 | Catalyst for normal-temperature combustion of methanol and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112871153A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636631A (en) * | 2003-10-08 | 2005-07-13 | 株式会社德山 | Catalyst for reduction of polychloralkane, producing process thereof and process for producing low-grade chloralkane |
| CN101347726A (en) * | 2008-08-22 | 2009-01-21 | 中国石化扬子石油化工有限公司 | Process for preparing catalyst Pd/TiO2 for hydrogenation of p-carboxybenzaldehyde |
| CN102764646A (en) * | 2012-07-03 | 2012-11-07 | 上海大学 | Preparation method of supported room-temperature combustion catalyst |
| CN104437476A (en) * | 2014-11-18 | 2015-03-25 | 张家港格林台科环保设备有限公司 | Pd/Al2O3 catalyst prepared by adopting spraying method and application of Pd/Al2O3 catalyst in catalytically reducing bromate in water |
| CN111659415A (en) * | 2019-03-05 | 2020-09-15 | 绍兴胜迹新材料科技有限公司 | Preparation method of coupled nano composite noble metal catalyst of active alumina carrier |
-
2021
- 2021-01-14 CN CN202110046533.3A patent/CN112871153A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636631A (en) * | 2003-10-08 | 2005-07-13 | 株式会社德山 | Catalyst for reduction of polychloralkane, producing process thereof and process for producing low-grade chloralkane |
| CN101347726A (en) * | 2008-08-22 | 2009-01-21 | 中国石化扬子石油化工有限公司 | Process for preparing catalyst Pd/TiO2 for hydrogenation of p-carboxybenzaldehyde |
| CN102764646A (en) * | 2012-07-03 | 2012-11-07 | 上海大学 | Preparation method of supported room-temperature combustion catalyst |
| CN104437476A (en) * | 2014-11-18 | 2015-03-25 | 张家港格林台科环保设备有限公司 | Pd/Al2O3 catalyst prepared by adopting spraying method and application of Pd/Al2O3 catalyst in catalytically reducing bromate in water |
| CN111659415A (en) * | 2019-03-05 | 2020-09-15 | 绍兴胜迹新材料科技有限公司 | Preparation method of coupled nano composite noble metal catalyst of active alumina carrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102125865B (en) | Mesoporous carbon supported Pt nano catalyst and preparation method thereof | |
| CN102614868B (en) | Supported noble metal hydrogenation catalyst and preparation method thereof | |
| CN106622227A (en) | Preparation method of monoatomic catalyst for indoor air purification | |
| CN104888804A (en) | Pd-based catalyst for low-temperature catalytic combustion of low-concentration methane as well as preparation method of Pd-based catalyst | |
| CN109675556A (en) | A kind of ruthenium catalyst and preparation method thereof for propane catalysis burning | |
| CN106207202A (en) | The platinum palladium nickel ternary nano alloy catalyst that nitrogen-doped graphene supports | |
| CN105236547B (en) | The method that CWO reduces COD in waste water | |
| CN102443454A (en) | Oxygen carrier of chemical-looping combustion and preparation method and application thereof | |
| CN113996293B (en) | Cerium lanthanum solid solution supported iridium catalyst, preparation method and application thereof | |
| CN105148930A (en) | Modified Co-Ce core-shell structure catalyst for carbon monoxide (CO) low-temperature oxidation | |
| CN114308030A (en) | Preparation method of high-activity aluminum-based VOCs catalyst | |
| CN112871153A (en) | Catalyst for normal-temperature combustion of methanol and preparation method thereof | |
| CN102500393B (en) | Monolithic catalyst for coal mine low-concentration ventilation air methane (VAM) combustion and preparation method thereof | |
| CN108786896A (en) | A kind of preparation method of noble metal catalyst | |
| JP3902395B2 (en) | Wastewater treatment catalyst and wastewater treatment method using the catalyst | |
| CN102240569B (en) | Modified mesoporous carbon supported Pt nano catalyst and preparation method thereof | |
| CN108172842B (en) | Preparation method of three-element double-layer PdNi @ Pt nanowire | |
| CN105688904A (en) | Method for preparing toluene catalytic combustion monolithic catalysts and application | |
| CN101116815A (en) | Un-equipartition combustion catalyst and method for preparing the same | |
| CN108435190A (en) | The cobalt cerium zirconium O composite metallic oxide catalyst and preparation method thereof of low-concentration methane gas is aoxidized for electrostatic field concerted catalysis | |
| WO2001047806A1 (en) | Process for selective oxidation of carbon monoxide in a hydrogen containing stream | |
| Zhang et al. | Development and performance of a K–Pt/γ-Al2O3 catalyst for the preferential oxidation of CO in hydrogen-rich synthesis gas | |
| CN115155647B (en) | Preparation method and application of BCN aerogel catalyst loaded with bimetallic single atoms | |
| JP4652834B2 (en) | CO removal catalyst and method for producing the same | |
| CN113600187B (en) | Catalytic oxidation catalyst with low Pt content and normal temperature activation and preparation method thereof |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220801 Address after: 210000 room 1501, 15th floor, building 1, Yutong building, No. 599, Pugang street, Jiangning District, Nanjing City, Jiangsu Province (Jiangning Development Zone) Applicant after: Voloda Technology Co.,Ltd. Address before: No.404, building 14, new town entrepreneurship center, Zengcheng low carbon headquarters park, No.400 Xincheng Avenue, Zengcheng District, Guangzhou, Guangdong Province Applicant before: Guangdong alcohol hydrogen New Energy Research Institute Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231221 Address after: Building 1, Unit 1, 2nd Floor, No. 112-1 Hongqiao Street, High tech Zone, Neijiang City, Sichuan Province, 641000, No. 21 BC Zone Applicant after: Sichuan Woyouda Technology Co.,Ltd. Address before: 210000 room 1501, 15th floor, building 1, Yutong building, No. 599, Pugang street, Jiangning District, Nanjing City, Jiangsu Province (Jiangning Development Zone) Applicant before: Voloda Technology Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210601 |