Gasoline vapor contributes to ground-level ozone ... It gets trickier with ethanol. Since 97 percent of all gasoline sold contains ethanol—and, according to the American Petroleum Institute ...

If the vapor pressure of gasoline is too high ... because of its non-ideal behavior in gasoline blends. Ethanol Is Not Ideal Pure ethanol has an RVP of 2 psi. If the mixing was ideal, a blend ...

Ethanol increases vapor pressure (more on that here), which is why the Environmental Protection Agency has strictly mandated summer gasoline blends since 1989. One benefit to consumers ...

Whenever a fuel is listed as E10, E15, E85, E100 or E##, the number simply represents the percentage of ethanol in the fuel by volume. So for example, most pump gas today is E10, meaning up to 10% ...

Ethanol also wants to evaporate more than gasoline, and fuel evaporation is a major source of air pollution, so you need those spring-loaded vapor seals on fuel pumps and similar gear at the ...

The campaign against a 50 percent increase in the ethanol content of gasoline has ... the evaporative emissions that occur when gasoline vapor escapes. But there's serious concern that such ...

For ethanol, it's approximately 130 kilojoules per kilogram, which is more than twice that value for gasoline. Why is this important? Before a fuel combusts, it must exist as vapor mixed with air ...