MOTOR FUEL ADDITIVE Russian patent published in 2007 - IPC C10L1/18 

FIELD: petroleum processing and petrochemistry.

SUBSTANCE: additive containing 10-90% butyl alcohol production hydrogenate, 5-85% oxygenate, 0.1-15% aromatic amine, and 0.1-1% anticorrosion agent. Proposed additive and fuel compositions including it show high antiknock efficiency, phase stability within a wide temperature range, and allow environmental properties of fuel to be improved owing to reduced amounts of CO and CxHy in exhaust gases. Additive contains no metal-bearing antiknock agents, which makes it possible to reduce wear of engine parts and to overcome negative effect on activity of catalytic neutralizers of automobiles. Utilization of butyl alcohol production by-product reduced cost of additive and composition including it. Using additive enables production of high-octane motor gasolines (AI-91, AI-92, AI-95, and AI-98) both of summer and of winter varieties.

EFFECT: avoided use of metals, reduced cost of additive, and widened resource of raw materials.

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