Processes for an improvement to gasoline octane for long-chain paraffin feed streams
AssigneeSwift Fuels, LLC
InventorsChris D'Acosta, Jeffery Miller, Robert Hoch
Life of this patent
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Abstract
Methods for making higher-octane fuel components from a feed stream of C8+ paraffins, including catalytically cracking the C8+ paraffins using a Zeolite catalyst to produce a reaction product of mid-chain paraffins and olefins and short-chain paraffins and olefins. The reaction product comprises liquid phase paraffins having an increased Octane Value over the feed stream paraffins. The reaction product further comprises a gas phase of short-chain paraffins which are separated from the liquid phase. In embodiments, the short chain olefins are hydrogenated to form mid-chain paraffins and a gas phase containing short-chain paraffins.
Claims18
A method for making a higher-octane fuel component from a feed stream containing C8+ paraffins, comprising:
- catalytically cracking C8+ paraffins in the feed stream using a metal-impregnated Zeolite catalyst under operating conditions converting C8+ paraffins in the feed stream first middle-chain paraffins, first short-chain paraffins, C5-7 olefins, and C4-olefins converted from the C8+ paraffins,
- the C5-7 olefins and the C4-olefins being hydrogenated in the presence of the metal-impregnated Zeolite catalyst to form second short-chain paraffins and second middle-chain paraffins,
- the reaction product comprising a liquid phase containing first and second middle-chain paraffins and a gas phase containing first and second short-chain paraffins;
- the liquid phase paraffins having an Octane Value that is at least 1 Octane Value higher than the Octane Value of the paraffins in the feed stream;
- and
- separating the liquid phase from the gas phase.
Dependencies are inferred from the claim text.