Catalyst for lowering regeneration temperature of diesel particulate filter (DPF) and preparation method of catalyst
A technology for regenerating temperature and catalyst, which is applied in catalyst activation/preparation, chemical instruments and methods, chemical elements of heterogeneous catalysts, etc. Low, easy-to-operate effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] A catalyst capable of lowering the regeneration temperature of DPF, the catalyst carrier is SiC, the volume is 3.3L, the pore density is 300 mesh / square foot; the coating contains γ-alumina, cerium oxide, magnesia, and γ-alumina and oxide The mass ratio of the mixture of cerium and magnesium oxide is 10:1; the coating amount of the coating is 5g / L; the precious metal is platinum, and the coating amount of the precious metal platinum is 0.1g / L.
[0031] A kind of preparation method of the catalyst that reduces DPF regeneration temperature, comprises the following steps:
[0032] (1) Preparation of coating slurry: Weigh 360g of γ-alumina and 36g of a mixture of cerium oxide and magnesia respectively, add deionized water to prepare an aqueous solution, and then make the mass ratio of γ-alumina and other oxides 10 Mix the two prepared aqueous solutions at a ratio of 1, and fully stir for 3 hours, and then further add additives to adjust the pH value;
[0033] (2) Slurry ba...
Embodiment 2
[0039] A catalyst capable of lowering the regeneration temperature of DPF. The catalyst carrier is SiC, with a volume of 3.3L and a pore density of 300 mesh / square foot; the coating contains γ-alumina, cerium-zirconium composite oxide, titanium oxide, and γ-oxidation The mass ratio of aluminum to cerium-zirconium composite oxide and titanium oxide mixture is 8:1; the coating amount is 20g / L; the precious metals are platinum and palladium, and the mass ratio of platinum and palladium is 1:1. Amount 1.1g / L.
[0040] A kind of preparation method of the catalyst that reduces DPF regeneration temperature, comprises the following steps:
[0041] (1) Preparation of coating slurry: Weigh 360g of γ-alumina and 45g of a mixture of cerium-zirconium composite oxide and titanium oxide respectively, add deionized water to prepare an aqueous solution, and then weigh 360g of γ-alumina and other oxides Mix the two prepared aqueous solutions at a ratio of 8:1, and stir them thoroughly for 3 ho...
Embodiment 3
[0048] A catalyst capable of reducing the regeneration temperature of DPF, the catalyst carrier is AT, the volume is 3.3L, and the pore density is 300 mesh / square foot; the coating contains γ-alumina and manganese oxide, and the mass of γ-alumina and manganese oxide The ratio is 6:1; the coating amount of the coating is 10g / L; the noble metals are platinum and palladium, the mass ratio of platinum and palladium is 15:1, and the coating amount of the noble metal is 0.3g / L;
[0049] A kind of preparation method of the catalyst that reduces DPF regeneration temperature, comprises the following steps:
[0050] (1) Preparation of coating slurry: Weigh 360g of γ-alumina and 60g of manganese oxide respectively, add deionized water to prepare an aqueous solution, and then mix γ-alumina and other oxides at a mass ratio of 6:1 The two prepared aqueous solutions were mixed and fully stirred for 3 hours, and then further additives were added to adjust the pH value;
[0051] (2) Slurry ba...
PUM
Property | Measurement | Unit |
---|---|---|
Volume | aaaaa | aaaaa |
Volume | aaaaa | aaaaa |
Volume | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com