Coyote Blog

A lot of climate skeptic sites are jumping on the apparent irony of this story:

Senator Dianne Feinstein introduced legislation in Congress on Monday to protect a million acres of the Mojave Desert in California by scuttling some 13 big solar plants and wind farms planned for the region.

But before the bill to create two new Mojave national monuments has even had its first hearing, the California Democrat has largely achieved her aim. Regardless of the legislation's fate, her opposition means that few if any power plants are likely to be built in the monument area, a complication in California's effort to achieve its aggressive goals for renewable energy.

I think that there is an important lesson here that even "clean" energy sources have environmental downsides.  Its funny how things come full circle - thirty years ago I used to argue with people who had obsessive concerns about nuclear waste.  I would say that the volume of waste was really small, and in fact coal and oil were no different in that they generated a lot of waste but that they spewed their waste all over the atmosphere -- at least nuclear waste was compact and defined and easy to store.

Anyway, I actually think Feinstein is correct here.   Here is the origin of the plot of land:

For Mrs. Feinstein, creation of the Mojave national monuments would make good on a promise by the government a decade ago to protect desert land donated by an environmental group that had acquired the property from the Catellus Development Corporation.

"The Catellus lands were purchased with nearly $45 million in private funds and $18 million in federal funds and donated to the federal government for the purpose of conservation, and that commitment must be upheld. Period," Mrs. Feinstein said in a statement.

I have some bias in this, because my personal charities of choice tend to be private land trusts, that use private funds to buy lands for conservation.   I have always argued from an individual liberty angle that people who want land conserved shouldn't be demanding that government take it, they should be putting their money where their mouth is and helping to buy the land.  This story actually gives me another argument, because you can see that the private conservation buyers made a mistake in giving it to the Feds.  The Bush Administration, looking to score a PR victory in the alternative energy front, reneged on the promised conservation and committed the land to solar projects.

Glen Reynolds brings us this:

A provision in the US Carbon Neutral Government Act incorporated
into the Energy Independence and Security Act of 2007 act effectively
bars the US government from buying fuels that have greater life-cycle
emissions than fuels produced from conventional petroleum sources.

The United States has defined Alberta oilsands as unconventional
because the bitumen mined from the ground requires upgrading and
refining as opposed to the traditional crude pumped from oil wells.

California Democrat Representative Henry Waxman, chairman of the
House Committee on Oversight and Government Reform and Republican Tom
Davis added the clause.

Uh, right.  Since we all burn pure unrefined crude oil pumped right from the oil well in our car. 

Here is what a traditional crude oil goes through before it becomes gasoline:

• Water and salt must be removed
• The oil is heated up to over 700 degrees, and is separated into its fractions via distillation.  Oil is made up of hydrocarbon chains of many lengths, from short ones (methane, ethane, propane) to very long ones (asphalt, heavy motor oils).  Gasoline is somewhere in between.
• Each fraction generally has to be de-sulfurized.  This generally occurs by injecting hydrogen into the fraction across a catalyst bed to remove the sulfur as Hydrogen Sulfide, a dangerous gas that must be further processed to produce pure sulfur.
• The gasoline fractions in a typical oil are nowhere near large enough for the relative demand.  So additional steps must be taken to produce gasoline:
  • Very heavy fractions have their molecules cracked at high temperatures, either in cokers, high temperature crackers or in fluid catalyst bed crackers.  These processes either remove carbon in its pure form or remove it by combining it with hydrogen
  • Certain fractions are reformed in combination with hyrdrogen, sometimes across a platinum catalyst, to produce molecules with better properties for gasoline, including higher octane.
  • All over a refinery, there are small units that take individual fractions that use a variety of processes to create specific molecules that have useful properties
• All of these different fractions and products are blended in various proportions to make different grades of gasoline.  These blends and proportions can change from city to city (to meet environmental regulations, Phoenix must have a gasoline blend that is unique in the US) and must change season to season (gas that burns well in winter will vapor lock in the summer time).

I am sure I left tons of steps out, but you get the idea.  Below are my old digs at Exxon's Baytown Texas Refinery, where I worked as an engineer for 3 years out of college: