Green Car Congress

JANUARY 5, 2011

ExxonMobil Research and Engineering Company has filed a US patent application (# 20100326387 , published 30 December 2010) on methods using a wide range of fuel-alcohol blends to expand the operating envelope of engines operating in advanced combustion modes. fuels often do not auto-ignite at low loads.

Alcohol Blend 199

Alcohol Blend Fuel Range Exhaust 199

Green Car Congress

NOVEMBER 26, 2013

Formaldehyde, acetaldehyde, and butyraldehyde were the most significant carbonyls from the n-butanol blend, while formaldehyde, acetone, and 2-methylpropanal were the most significant from the i-butanol blend. The 12% i-butanol/7% ethanol blend was designed to produce no increase in gasoline vapor pressure.

Gasoline 236

Gasoline Alcohol Blend Light Emissions 236

Green Car Congress

OCTOBER 11, 2019

This work will help the research community better understand the efficiencies that biofuels bring to the table, and identifies the biofuels that enable more efficient engine design and operation. These blendstocks are best-suited for light-duty (LD) gasoline BSI engines.

Engine 207

Engine Alcohol Blend Idaho Davis 207

Green Car Congress

JULY 18, 2014

The alternative fuel types to be addressed under this FOA are specified by the Energy Policy Act of 1992 and are: Methanol, ethanol, and other alcohols. Blends of 85% or more of alcohol with gasoline. Fuels (other than alcohol) derived from biological materials (including pure biodiesel (B100)). Coal-derived liquid fuels.

Alcohol Blend 240

Alcohol Blend Alternative Fuels Fuel Vehicles 240

Green Car Congress

JUNE 28, 2019

While fuel economy ratings of today’s cars significantly outstrip those of just a decade ago, cost-effective efficiency improvements remain limited by existing engine designs and fuel formulas. —NREL Vehicle Technologies Program Manager John Farrell.

Alcohol Blend 170

Alcohol Blend Fuel Economy Engine Fuel 170

Green Car Congress

MARCH 27, 2020

Of these 10 blendstocks, six were assessed to have the fewest significant practical barriers to adoption which include alcohols and an olefine (alkene): di-isobutylene, ethanol, a fusel alcohol blend, isobutanol, n-propanol, and isopropanol. What Will Work in the Real World? —Co-Optima capstone report.

Alcohol Blend 243

Alcohol Blend Fuel Engine Fuel Economy 243

Green Car Congress

AUGUST 25, 2015

The preflame reactions are a strong function of temperature, so evaporative cooling from the fuel can also play a significant role, which is particularly important for fuels containing alcohol. Alcohol and gasoline-alcohol blends also offer efficiency benefits independent of their octane value. —Leone et al.

Engine 150

Engine Fuel GM Ford 150