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Posts tagged “Neste”

By Robert Rapier on Mar 28, 2012 with 12 responses

Vinod Khosla, Cellulosic Ethanol, and Biomass Fuel Pathways — R-Squared Energy TV Ep. 16

In this week’s episode of R-Squared Energy TV, I answer a few questions about pathways to biofuels, cellulosic ethanol, and Vinod Khosla. I have to apologize this week, because the microphone was a bit away from my mouth, so the volume is lower than normal.

Some of the topics discussed this week are:

  • Some of the commercially viable pathways for turning biomass into energy
  • The prospects for drop-in fuels
  • The shift in Vinod Khosla’s optimism over the past 5 years
  • What I think Vinod’s statements to the Wall Street Journal really signal

 

CONTINUE»

By Robert Rapier on Jan 17, 2009 with no responses

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 order to explain the key issues, I am going to excerpt from the chapter on renewable diesel that I wrote for Biofuels, Solar and Wind as Renewable Energy Systems: Benefits and Risks. First, what happened in Minnesota? Biodiesel fuel woes close Bloomington schools All schools in the Bloomington School District will be closed today after state-required biodiesel fuel clogged in school buses Thursday morning and left dozens of students stranded in frigid weather, the district said late Thursday. Rick Kaufman, the district’s spokesman, said elements… Continue»

By Robert Rapier on Jun 13, 2008 with no responses

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 projects from these companies here; explore the green diesel stories I have written here). Green diesel is produced either from hydrotreating or hydrocracking plant oils or animal fats (Neste, Petrobras, COP) or via the BTL reaction (Choren). Green diesel is chemically different from biodiesel. Green diesel has chemical properties identical to petroleum diesel, while biodiesel is not a pure hydrocarbon (it contain oxygen atoms, hence the somewhat different physical properties). Today, Bob Rohantensky sent me the following story indicating that Neste just announced that… Continue»