Operation of an internal combustion engine with a pre-engine ref

Details Operation of an internal combustion engine with a pre-engine ref Operation of an internal combustion engine with a pre-engine ref

1988-06-30

1989-12-05

Cross, E. Rollins

Internal-combustion engines

Combined devices

Generating plants

F02B 4308

Patent

active

048845310

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.

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patent: 4652360 (1987-03-01), Dessau
patent: 4716859 (1988-01-01), Konig
J. P. DeLuca and L. E. Campbell, "Monolithic Catalyst Supports" in Advanced Materials in Catalysis, J. J. Burton and R. L. Garten, eds., Academic Press, New York (1977), pp. 293 to 324.
J. Wei, "Catalysis for Motor Vehicle Emissions", Adv. Catalysis, vol. 24 (1975), pp. 77-86.

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