Stories tagged with "cellulosic ethanol"
Renewable Fuel Niches
Posted by Robert Rapier on September 18, 2009 - 10:23am
Topic: Alternative energy
Tags: algal biodiesel, cellulosic ethanol, ethanol, hydrogen [list all tags]
This is the final installment of a three-part series that examines some of the renewable energy options that are presenting themselves as possible contenders to step up as petroleum steps down the depletion curve. The previous installments were:
Today I want to talk about Biofuel Niches. Here is how I would define a Biofuel Niche: A technology that is capable of supplying, long-term, up to 10% of our present liquid fossil fuel consumption, often by utilizing specific, localized synergies.
This definition covers a great number of possibilities, and I don't pretend that I will even cover a large fraction of them. But I want to cover some specific fuels - like cellulosic ethanol - that I believe can work in a niche. If readers can think of others, let's discuss them. I want to lead off with some of the options I categorized as "Pretenders", and then discuss corn ethanol which I did not discuss in the previous installments.
Renewable Fuel Pretenders
Posted by Robert Rapier on September 3, 2009 - 10:16am
Topic: Alternative energy
Tags: algal biodiesel, biodiesel, cellulosic ethanol, hydrogen, john benemann [list all tags]
Introduction
This essay initially started out as "Pretenders, Contenders, and Niches." However, the section on pretenders grew to the point that I have decided to split that essay up. The first part, Renewable Fuel Pretenders, will cover some of the current media and political darlings. The second part, Renewable Fuel Contenders, will discuss some options that have received less attention, but in the long term are more likely to have staying power in my view. The final part on niches will discuss situations in which certain options might work in very specific situations.
One thing that probably goes without saying. Most pretenders don't believe they are pretenders. They are often completely sincere people who believe they have cracked the code, and thus they take exception to my characterization. The cellulosic guys, the algae guys, and even the hydrogen guys will insist that I have it all wrong. In fact, following the posting of this essay on my blog, I heard from all of them. I got numerous e-mails assuring me that they really had come up with the solution. What I have discovered in many of these cases is that people often believe this because they have no experience at scaling up technologies. They might have something that works in the lab, but this can instill a false sense of confidence in those who have never scaled a process up.
Inside POET: A Conversation with the World's Largest Ethanol Producer
Posted by Robert Rapier on July 19, 2009 - 10:57am
Topic: Alternative energy
Tags: biogas, biomass, cellulosic ethanol, poet [list all tags]
On July 17th I spent some time on the phone with POET's VP of Science and Technology Dr. Mark Stowers. (I was invited up for a visit, but I couldn't swing that just now). Dr. Stowers is in charge of company R&D, which includes corn and cellulose to ethanol, as well as the investigation of novel processes for utilizing waste to power their facilities.
Joining us on the call was Matt Merritt, POET's Media Relations Specialist. We covered a lot of ground on the call. Along with the environmental impact, key interests of mine in assessing fuels of any kind are the energy inputs – what kind, how much – and the related topic of logistics. I probed the energy inputs in some depth, as I consider that critical when considering long-term commercial feasibility.
Vinod Khosla at Milken Institute: Interview Excerpts
Posted by Robert Rapier on May 9, 2009 - 10:08am
Topic: Miscellaneous
Tags: biomass, cellulosic ethanol, electric car, nuclear energy, prius, solar power, vinod khosla [list all tags]
Vinod Khosla (VK) recently did a lengthy interview at the Milken Institute 2009 Global Conference. The interview was conducted by Elizabeth Corcoran (EC) of Forbes. You can see the video of the interview here:
Milken: Khosla on the Shift to Renewable Energy
These are excerpts from a transcript I put together from the recording. You can read the entire transcript (in three segments) on my R-Squared Energy Blog. I have labeled my comments with RR.
EC (13:40): In the past 90 days we have seen something like a billion dollars being put into solar investments - whether in the form of equity or debt. Is that stupid money?
Open Letter on Biofuels
Posted by Gail the Actuary on January 20, 2009 - 10:33am
Topic: Policy/Politics
Tags: biofuel, cellulosic ethanol, corn ethanol, ethanol [list all tags]
Now is the time when everyone is writing letters to the new Obama administration. It seems like it might be worthwhile discussing a letter written by a group of organizations warning of the dangers of biofuels. The letter can be found at the site of the Global Justice Ecology Project. The statement on the website about this letter says:
Corn and sugar based agrofuels have already come under extreme scrutiny due to their documented contribution to the food crisis, with venture capital investment in these so-called 'first generation biofuels' dropping to zero. The open letter exposes the further problems that will result from the so-called 'second generation' of agrofuels. These problems range from wholesale destruction of the world's rainforests and other sensitive forests, to the forced displacement of entire communities to make way for agrofuel expansion, and the biosafety risks of gambling on novel technologies like Synthetic Biology and genetically engineered trees. The letter also makes clear that agrofuels made from inedible plant feedstocks (cellulosic fuels) will continue to exacerbate the food crisis by monopolizing additional agricultural lands for the growing of agrofuel crops such as grasses and trees, instead of food crops.
My Top 10 Energy Stories of 2008
Posted by Robert Rapier on December 29, 2008 - 10:52am
Topic: Miscellaneous
Tags: barack obama, cellulosic ethanol, ethanol production, oil prices, original, peak oil, windfall profits, xethanol [list all tags]
Tis the season for Top 10 stories, and here are what I think were the Top 10 energy stories of the year.
1. Unprecedented volatility in the energy markets
Oil prices raced to nearly $150 a barrel, and then fell to the $30's by year end. This marks the highest ever prices for oil, followed by the lowest prices in four years. Gasoline, diesel, and natural gas prices demonstrated the same kind of volatility. There are multiple factors behind the volatility. The role of speculation was hotly debated, and the economic collapse - fueled by cash-strapped consumers who had overextended themselves - resulted in a sharp drop in demand. Some even argued that the real reason behind the plunge in prices was closure of the so-called "Enron loophole."
Thoughts on the New Energy Team
Posted by Robert Rapier on December 22, 2008 - 11:35am
Topic: Policy/Politics
Tags: cellulosic ethanol, coal, conservation, doe, energy policy, gas tax, global warming, greenhouse gas, politics, steven chu [list all tags]
In case you are just venturing out of your cave for the first time in a week, you are probably aware that President-elect Obama has announced his new energy team:
The team includes Nobel Prize winning physicist Steven Chu as Secretary of Energy, former EPA head Carol Browner to fill the newly-created job of Energy Czar, and Lisa Jackson to head the EPA. The focus of this essay will be on Dr. Chu, but I will comment briefly on the others.
Lisa Jackson is trained as a chemical engineer (as was the outgoing Secretary of Energy Samuel Bodman). It should go without saying that I like to see technical people in roles like this, where understanding science and data are both critical. Carol Browner, while not trained as a technical person, has a lot of administrative experience within the EPA. Incidentally, I once met Mrs. Browner, as she was the person who presented my research group with the 1996 Green Chemistry Challenge Award at the National Academy of Sciences for our work on biomass conversion to fuels.
Cutting Through the Coskata Cellulosic Ethanol Hype
Posted by Robert Rapier on October 30, 2008 - 9:50am
Topic: Alternative energy
Tags: biomass, cellulosic ethanol, coskata, ethanol, membrane separation, plasma gasification, vinod khosla [list all tags]
I have a strong distaste for companies or individuals who overpromise and underdeliver. Changing World Technologies (CWT) and their thermal depolymerization (TDP) technology is probably the poster child for companies that promised lots and delivered little. The hype was that they had the "technological savvy" to "turn 600 million tons of turkey guts and other waste into 4 billion barrels of light Texas crude each year." Further, they were going to "make oil for $8 to $12 a barrel." (See TDP: The Next Big Thing).
Of course as time went by, the hype unraveled. But not before the hype resulted in CWT getting earmarks for building their plant (money that went down the drain as documented here) as well as a tax credit inserted by Missouri Congressman Roy Blunt to specifically benefit CWT. That money came out of the pockets of American taxpayers, and could have been better utilized. But it was hijacked by CWT and their overpromises.
These are the sorts of implications that cause me to be very skeptical of companies that make seemingly far-fetched claims. I don't want technologies receiving legal and tax benefits because of hollow boasts. This is also the reason I have been critical in my assessments of some of the cellulosic ethanol claims made by ethanol evangelists like Vinod Khosla.
Biofuel Conference Call Including a New Biodiesel from Algae
Posted by Gail the Actuary on August 22, 2008 - 10:43am
Topic: Alternative energy
Tags: algae, algal biodiesel, bio, biodiesel, biofuel, biotechnology industry organization, cellulosic ethanol, ethanol, original [list all tags]
A few days ago I participated in a conference call (recording available here) about biofuels with an organization called Biotechnology Industry Organization (BIO). In this article, I will discuss some things I found interesting, including a new technique for making biodiesel that involves feeding biomass to algae.
The call had three speakers. The first, Jim McMillan of the National Renewable Energy Laboratory gave an overview of the current US biofuel situation. According to him, a lot of current interest is in cellulosic ethanol, since corn ethanol doesn't scale up very well. At this point, the cost of cellulosic ethanol seems to be double or more that of corn ethanol. The economics are still being clarified by demonstration projects. Until there is some sort of climate legislation that raises the price of carbon, it will be difficult to overcome the price gap.
Peak Oil Media: Food v. (Bio)fuel, Fast Money saying "It's Supply, Stupid" and Cramer on Ending the Ethanol Mandate
Posted by Prof. Goose on May 9, 2008 - 10:00am
Topic: Alternative energy
Tags: algal biodiesel, cellulosic ethanol, corn, eroi, ethanol, fast money, jim cramer, joe terranova, mad money, peak oil media [list all tags]
UNDER THE FOLD, you will find two youtube videos that are worth your time. The first is from Fast Money (CNBC) yesterday entitled "It's Supply, Stupid." After a bit of discussion on the panel, Joe Terranova provides a really nice discussion (about 4 mins) of the reasoning behind why the price oil is rising: supply and demand. Sure, it's a little bit the weak dollar, it's a little bit speculation, but Terranova makes an elegant argument as to why it's mostly the fundamentals--which is kinda what we've been saying for a while around here, eh?
The second video, is Jim Cramer of CNBC's Mad Money (1:30) discussing ethanol and its implications for food; he uses the words "Wall of Ethanol Truth," "that issue is killing Americans," "ending the ethanol mandate," and "Malthusian." Wow. Let's discuss.



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