Tag: additives

More Ethanol in Gas?

  • A corn ethanol refinery- The ethanol industry is asking the EPA to raise the legal limit of ethanol that can be added to regular gasoline from 10 to 15%. (Photo by Grant Hellman, Courtesy of US Department of Agriculture)

In the 1970s, the government limited the amount of ethanol that can be blended with gasoline at 10 percent. Now, a trade group called Growth Energy has asked the U-S EPA to raise the limit to 15 percent:

Transcript

In the 1970s, the government limited the amount of ethanol that can be blended with gasoline at 10 percent.

Now, a trade group called Growth Energy has asked the U-S EPA to raise the limit to 15 percent.

Agriculture Secretary Tom Vilsack has already said that 12 or 13 percent ethanol is possible soon.

But, an environmental groups says, “slow down.”

Jeremy Martin is with the Union of Concerned Scientists. He says, first, the government should make sure that a higher-ethanol blend doesn’t damage pollution controls on vehicle engines.

“We don’t want to quickly make a change and then find out that we’ve caused a lot of damage to lots of vehicles on the road or caused a lot of air quality impacts.”

Supporters of the increased ethanol blend say it would help US corn farmers and reduce the demand for foreign oil. But opponents say ethanol made from corn does more harm to the environment than good.

For The Environment Report, I’m Chuck Quirmbach.

Related Links

Ethanol Fuel Cells a Viable Alternative?

Hydrogen fuel cells may be the energy of the future, but so far the hydrogen to power them has only been made from fossil fuels. Now, researchers at the University of Minnesota have come up with a way to make hydrogen from a renewable fuel – ethanol, made from corn. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:

Transcript

Hydrogen fuel cells may be the energy of the future, but so far the hydrogen to power them has
only been made from fossil fuels. Now, researchers at the University of Minnesota have come up
with a way to make hydrogen from a renewable fuel – ethanol, made from corn. The Great Lakes
Radio Consortium’s Stephanie Hemphill reports:


Researchers published their findings in a recent issue of Science magazine.


Lanny Schmidt is a chemical engineer at the University of Minnesota. He says his team has
created a simple system. A fuel injector forces ethanol through a catalyst. The catalyst then
converts the ethanol into hydrogen and carbon dioxide.


Schmidt says because ethanol is made from corn, it doesn’t contribute to the greenhouse effect.


“We’re now just using that ethanol as a gasoline additive. What we’re proposing here is to use
this ethanol as a transportable liquid fuel to use in fuel cells, which have two or three times the
efficiency of simple combustion.”


Schmidt says early applications could include producing electricity at remote locations like
cabins.


He’s applied for a patent, and hopes a private company will commercialize the technology.


For the Great Lakes Radio Consortium, I’m Stephanie Hemphill.

Related Links

Finding a Healthier Holiday Turkey

A turkey dinner with all the fixin’s is as much a part of the
holidays as Santa Claus and Christmas carols. Most people buy their
turkey in the frozen food section of the local supermarket. But a
growing
number are looking for a healthier alternative. They’re getting their
birds
right from the farm. The Great Lakes Radio Consortium’s Karen Kelly
reports:

Can Agriculture Keep Up?

As of this month (Oct.), there are six billion people on the planet and
the population will keep rising. It’s predicted the population will hit
eight-and-half billion by the year 2025. But some experts say the demand
for food will rise even faster. The Great Lakes Radio Consortium’s
Lester Graham reports… feeding the world will be one of the biggest
challenges of the coming century:

Guide Educates Consumers on Food Additives

Americans are eating more and more processed foods. And that means that food labels are getting longer, as manufacturers add new ingredients to their products. But labels may not tell consumers much about those additives or how much the food was processed. To help educate themselves, consumers can now turn to a new guide to food ingredients. The Great Lakes Radio Consortium’s Steve Frenkel has more: