Oxygenated Butanol Gasoline Composition Having Good Driveability Performance

Patent metadata

Field	Value
Publication number	US-2016281012-A1
Application number	US-201615179469-A
Country	US
Kind code	A1
Filing date	Jun 10, 2016
Priority date	Jun 16, 2010
Publication date	Sep 29, 2016
Grant date	—

Abstract

Gasoline blends and methods for producing gasoline blends containing high concentrations of a butanol isomer and having good cold start and warm-up driveability characteristics are disclosed.

First claim

1 - 27 . (canceled)

28 . An isobutanol gasoline blend for conventional vehicles having good cold start and warm-up (CS&W) driveability performance comprising:
gasoline; and a biologically-sourced isobutanol, blended so the isobutanol gasoline blend has a specific ASTM D4814 Table 1 vapor pressure/volatility class; and a High Butanol Driveability Index (HBDI b ) value determined by the equation: DI+BuOH(44−0.61E200−0.83RVP), wherein:
BuOH is the concentration in volume percent of the biologically-sourced isobutanol in the isobutanol gasoline blend;
E200 is the volume percent of the isobutanol gasoline blend that distills at temperatures up to about 200° F.;
RVP is the Reid Vapor Pressure in psi; and
DI is the Driveability Index for the class of gasoline as specified in Table 1 of ASTM D 4814,
wherein the HBDI b value is lower than about 1400; and wherein the total weighted demerits of the gasoline blend is less than about 40.

29 . The isobutanol gasoline blend of claim 28 , further comprising a sufficient volume of light hydrocarbons to adjust the value of HBDI b value below about 1400.

30 . The isobutanol gasoline blend of claim 28 , further comprising one or more additives.

31 . The isobutanol gasoline blend of claim 30 , wherein the one or more additives are detergents, antioxidants, stability enhancers, demulsifiers, corrosion inhibitors, metal deactivators, or mixtures thereof.

32 . An isobutanol gasoline blend for conventional vehicles having good cold start and warm-up (CS&W) driveability performance comprising:
gasoline; and a biologically-sourced isobutanol, blended so the isobutanol gasoline blend has a specific ASTM D4814 Table 1 vapor pressure/volatility class, and a Design Variable Index (DVI) value determined by the equation: BuOH (9.69−0.146E200−0.212RVP), wherein:
BuOH is the concentration in volume percent of the biologically-sourced isobutanol in the blend;
E200 is the volume percent of the isobutanol gasoline blend that distills at temperatures up to about 200° F.;
RVP is the Reid Vapor Pressure in psi;
wherein the DVI value is lower than about 75, and the total weighted demerits of the gasoline blend is less than about 40.

33 . The isobutanol gasoline blend of claim 32 , wherein the isobutanol gasoline blend additionally comprises a sufficient volume of light hydrocarbons to adjust the DVI value lower than about 75.

34 . The isobutanol gasoline blend of claim 32 , further comprising one or more additives.

35 . The isobutanol gasoline blend of claim 34 , wherein the one or more additives are detergents, antioxidants, stability enhancers, demulsifiers, corrosion inhibitors, metal deactivators, or mixtures thereof.

Assignees

• Butamax Advanced Biofuels Llc

Inventors

• Torres-Ordonez Rowena Justo
• Kuberka Melanie
• Placzek Peter
• Wolf Leslie R
• Baustian James J

Classifications

• C10L2270/023

  for gasoline engines · CPC title

• C10L2200/0423

  Gasoline · CPC title

• C10L1/1824 Primary

  mono-hydroxy · CPC title

• C10L2200/0469

  Renewables or materials of biological origin · CPC title

• C10G2300/304

  Pour point, cloud point, cold flow properties · CPC title