Catalyst for low temperature catalytic combustion and preparation method thereof
A catalytic combustion and catalyst technology, which is applied in the direction of combustion methods, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of poor catalytic combustion effect, large precious metal platinum, and inability to carry out catalytic combustion, so as to reduce costs and improve Effect of temperature range
Inactive Publication Date: 2017-01-11
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In the prior art, cordierite is used as a substrate, and metal platinum is loaded as a catalytic active substance to make a catalyst for the catalytic combustion of methanol. However, the amount of precious metal platinum loaded on this catalyst is relatively large, and usually at least 0.1 wt% is required to be loaded. Combustion effect, and this kind of catalyst is even worse at low temperature (especially at sub-zero temperature), and even cannot carry out catalytic combustion
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The present application will be further elaborated below by way of examples.
[0026] The low-temperature catalytic combustion catalyst of the embodiment of the present invention includes the following components in mass percentage:
[0027] Nano Platinum 0.005-0.05%
[0028] Nano oxide 0.3-3.0%
[0029] The remainder is the carrier;
[0030] The carrier is metal mesh or metal felt.
[0031] The material of the metal mesh is titanium, titanium alloy, tungsten, molybdenum, zirconium or tantalum, the aperture of the metal mesh is 0.002-0.83mm, the thickness of the metal mesh is 0.01-7.8mm, the porosity is 40-99%, and the specific surface area 50-5000m 2 / m 3 .
[0032] The material of the metal felt is stainless steel, the porosity is 40-80%, and the specific surface area is 1000-5000m 2 / g.
[0033] The nano-oxide is nano-alumina or nano-titanium oxide, and the particle size is 10-50nm.
[0034] The preparation method of the catalyst of above-mentioned low-tempe...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a catalyst capable of low-temperature catalytic combustion and a preparation method thereof. The catalyst comprises the following components in mass percent: 0.005-0.05 percent of nanometer platinum, 0.3-3.0 percent of nanometer oxide and the balance of carrier, wherein the carrier is a metal mesh or a melt felt. With the special carrier and according to the carrier processing method, the consumption amount of the noble metal catalyst material platinum (lower than 0.1 percent) can be greatly reduced, the cost is greatly reduced, and the catalytic combustion of methanol and hydrogen below zero DEG C is realized, and the sensing temperature range of methanol and hydrogen is widened.
Description
technical field [0001] The invention relates to the technical field of catalysts, in particular to a low-temperature catalytic combustion catalyst and a preparation method thereof. Background technique [0002] Methanol has strong toxicity, not only has the greatest impact on the nervous system and blood system of the human body, but methanol vapor can also damage the human respiratory mucosa and vision. In practice, methanol vapor is a component of many industrial waste gases. Effectively sensing the presence of methanol vapor and using flameless catalytic combustion to generate heat from waste methanol is of great significance for energy utilization and environmental protection. In the energy industry, the use of catalytic combustion can improve the efficiency of methanol combustion and greatly reduce the generation of air pollutants such as carbon monoxide. [0003] In the prior art, cordierite is used as a substrate, and metal platinum is loaded as a catalytic active su...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/42B01J23/89F23G7/07
Inventor 王文韬彭海炎曾德文张欢钱小立李建军王慰
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI