Operation of an internal combustion engine with a pre-engine reformer
US4884531A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1988 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | Jun 30, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method is provided of operating an internal combustion engine comprising subjecting a hydrocarbon fuel of relatively low octane number to in situ reforming at elevated temperatures by passing it through a reaction zone containing a substantially non-acid catalyst comprising a Group VIII hydrogenation/dehydrogenation metallic element, e.g., platinum, and an intermediate pore zeolite, e.g., having an X-ray diffraction pattern similar to that of an acidic zeolite which has a Constraint Index in the approximate range of about 1 to 12, such that the fuel leaving said reaction zone has an increased octane number, and passing the fuel to the combustion chamber of said engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.