Hydrocarbon cracking, dehydrogenation and etherification process

Details Hydrocarbon cracking, dehydrogenation and etherification process Hydrocarbon cracking, dehydrogenation and etherification process

1990-11-13

1992-11-03

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208120, 585310, 585324, 585649, 585653, 585654, 568697, C10G 5700, C07C 406

Patent

active

051604248

ABSTRACT:
A method for upgrading paraffinic naphtha to high octane fuel by contacting a feedstock, such as C7-C22 fresh virgin naphtha, with porous acid cracking catalyst under low pressure selective cracking conditions effective to produce C4 -C5 isoalkenes and C4-C5 isoalkanes. The preferred feedstock is straight run naphtha containing C7+ alkanes, at least 15 wt % C7+ cycloaliphatic hydrocarbons and less than 20% aromatics, which can be converted with a fluidized zeolite catalyst in a vertical riser reactor during a short contact period.
The isoalkane products of cracking are dehydrogenated and etherified to provide high octane fuel components.

REFERENCES:
patent: 3926781 (1975-12-01), Gale
patent: 4423251 (1983-12-01), Pujado et al.
patent: 4827045 (1989-05-01), Harandi et al.
patent: 4969987 (1990-11-01), Le et al.
patent: 5100534 (1992-03-01), Le et al.

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