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Posts tagged “fischer tropsch”

By Robert Rapier on May 7, 2012 with 52 responses

Current and Projected Costs for Biofuels from Algae and Pyrolysis

A reader recently called my attention to a new and very interesting presentation from the Department of Energy’s Biomass Program:

Biofuels Design Cases

The presentation explored the question of whether the U.S. government is spending money on the right technology pathways. Costs were presented for biofuel produced from pyrolysis, algae, Fischer-Tropsch (FT), and methanol-to-gasoline (MTG) routes.

I want to share several slides from the presentation to give an idea of what the DOE thinks about the costs for producing biofuels via the various pathways. The first slide below shows the projected cost of production of biofuels via MTG, pyrolysis, and FT for the “Nth Biorefinery Plant” — which is defined as the projected fuel cost after a number of plants have been built and the learning curve has been mastered.

 Figure 1. DOE projections of costs for biofuel from MTG, pyrolysis, and FT routes.


By Robert Rapier on Jul 8, 2011 with 105 responses

What Happened at Choren?

If you have not heard by now, Choren Industries has begun bankruptcy proceedings. For those who don’t know, since 2009 I have worked as the technology advisor for the major investor and primary funding source for Choren’s day-to-day operations. I have just returned from a visit to their plant in Freiberg, Germany. Due to the nature of my relationships with my employer and with Choren, I have to be guarded about what I say. To be clear, I do not work for Choren, and thus am not writing this as a Choren spokesman of any sort. But I do want to shed a bit more light on the situation. First of all, to give a bit of background on Choren,… Continue»

By Robert Rapier on Aug 1, 2009 with no responses

Answering Reader Questions 2009: Part 1

Before I took a recent trip to Canada, I opened up the floor for questions. Getting them answered has taken longer than I intended. Fortunately, other readers answered a lot of them in the comments of that thread. So I have sifted through the list, trying to find questions that were still open, or those I wanted to make an additional comment on. Thanks to those who submitted questions, as well as to those who answered them. A special thanks to Kit P., who wrote some extensive answers to some of the questions around electricity and saved me a good deal of work. This is going to take at least three installments. But I have put this off long enough,… Continue»