Reducing agent injection device and exhaust gas treatment device
US10100694B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | Mar 14, 2017 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Mar 14, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A reducing agent injection device includes a first honeycomb structure and a urea spraying device spraying a urea water solution in mist form. A pair of electrode members is formed in the first honeycomb structure. The ratio L/D of length L in the cell extending direction of the honeycomb structure body to diameter D of the cross section perpendicular to the cell extending direction is 0.5 to 1.2. Also, it is preferable that a urea hydrolysis catalyzer is provided in the second end face side of the honeycomb structure body, with a gap from the second end face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.