Renewable Diesel Primer

Given the recent news that biodiesel has caused buses in Minnesota to malfunction in cold weather, I thought this would be a good time to review the differences between diesel, biodiesel, and green diesel. In […]

Biodiesel, Green Diesel, and Jet Fuel

It is annoying to me that the definition of cellulosic ethanol has now been officially coopted in last year’s energy bill to include gasification processes. To me, that’s like redefining the definition of ‘birds’ to […]

Games Politicians Play

In a bid to keep 1st generation biodiesel technology competitive with the more desirable 2nd generation variety, politicians have voted to keep a $1/gal tax credit for biodiesel made from food, but deny the credit […]

Neste Moves Forward with Green Diesel

I have written periodically on ‘green diesel’, which should not be confused with biodiesel. Neste, Petrobras, and ConocoPhillips (in a venture with Tyson foods), have all entered the green diesel arena. (See a bit on […]

The Right Ideas

As a native of Oklahoma, this story was bound to catch my attention: Oklahoma’s painful car culture I know well how dependent Oklahoma is on the car. The reason? NEW YORK (CNNMoney.com) — For many […]

Visit to New Choren BTL Plant

Figure 1. Choren BTL Production Process. (Source: Choren) Introduction I had to dig way back in my Gmail archives to figure out how it was that I first interacted with Choren. I had written several […]

LCA on Renewable Diesel

Thanks to a reader for this tip. Argonne National Laboratory has just published a Life-Cycle Analysis (LCA) of biogasoline, biodiesel, green diesel, and petroleum diesel: Life-Cycle Assessment of Energy and Greenhouse Gas Effects of Soybean-Derived […]

Jatropha in NYT

An interesting jatropha story in today’s New York Times: Mali’s Farmers Discover a Weed’s Potential Power It will be archived pretty soon, but here are a couple of excerpts to chew on: But now that […]

Biodiesel’s Green Diesel Nightmare

I have been saying this for months, and others are starting to realize the same thing: Renewable Diesel: Biodiesel’ s Nightmare I first heard of this process last October at an NREL presentation (they called […]

A Disjointed Energy Policy

Hypothetical question: If a group of farmers in Iowa cut a deal with Tyson Foods to produce 2nd generation renewable diesel via a hydrotreating process, would Congress step in to stop them from receiving the […]