Welcome to the North American Subaru Impreza Owners Club Saturday July 12, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > News & Rumors > Non-Subaru News & Rumors

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 10-19-2009, 08:58 AM   #1
AVANTI R5
Scooby Guru
 
Member#: 73805
Join Date: Nov 2004
Default Trash into gas: Coskata launches demonstration scale cellulosic ethanol biorefinery




Quote:
The greatest promise for biofuels is to produce a combustible liquid fuel from any kind of waste material. Thatís what Coskata, a startup company with investment capital from General Motors, claims it can do with new, patented technology. (Read "GM invests in cellulosic ethanol.")

Yesterday, the company said it got one step closer to that goal with the launch of a demonstration plant in Madison, PA. Coskata claims it can convert any type of waste material containing carbon into syngas, by heating it to 8,000 degrees Fahrenheit. (Syngas is a gaseous combination of carbon monoxide, hydrogen, and sometimes carbon dioxide with less than half the energy density of natural gas.) Patented microorganisms then convert the syngas into ethanol, in a process that saves a step compared to other methods of producing ethanol from cellulose, or woody plant fibers.

The company has not revealed the plant capacity, but demonstration plants of this sort are usually built to produce about 10 million gallons of ethanol a year. A 100-million gallon plant is generally considered optimum for a profitable commercial plant.

So far, Coskataís demonstration plant is running on wood chips, but the company says its process could work on any type of feedstock from corn stover to municipal garbage.

Whether it makes sense to use ethanol as an alternative fuel is a hotly debated topic. Consumer Reports tested a Chevrolet Tahoe flex-fuel vehicle running on E85 and gasoline, and found that its fuel economy dropped 27 percent, from a poor 14 mpg overall on gasoline to a dismal 10 mpg on ethanol. Even though a gallon of E85 ethanol costs less on average than gasoline ($2.13 nationwide average this summer, vs $2.44), it would cost a consumer more than $450 a year extra to fuel the Tahoe with E85 instead of gasoline due to the fuel economy differences. Most flex-fuel vehicles on the market today are large trucks and SUVs such as the Tahoe, incentivized by a federal fuel economy credit applicable to corporate fleet averages (CAF…) regardless whether the vehicles are actually operated with E85.

Ethanol supporters make the case that crops grown to produce ethanol absorb carbon-dioxide from the atmosphere, which would help slow global warming.

The U.S. government supports ethanol as a short-term substitute for petroleum consumption to wean the country off its dependence on foreign oil. Ethanol supporters hope that using waste materials instead of corn will eventually bring prices down and remove concerns about producing fuel from potential food stocks. However, converting trash or wood chips into ethanol would emit more carbon dioxide than refining gasoline, and it would not offset this increase by growing new crops.

In the final analysis, switching to any type of alternative fuel to reduce American demand for oil is likely cost consumers more.
http://blogs.consumerreports.org/car...orefinery.html
* Registered users of the site do not see these ads.
AVANTI R5 is offline   Reply With Quote
Old 10-19-2009, 11:12 AM   #2
Chromer
Scooby Specialist
 
Member#: 20325
Join Date: Jun 2002
Chapter/Region: NESIC
Vehicle:
08 Yamaha WR250R
07 Suzuki DL650

Default

They are still saying their production costs are around $1/gallon, so I'm not sure where Consumer Reports is getting that it'll cost more than gasoline. Getting two bites at the carbon (original product and then energy from the waste stream) is a net reduction as well...
According to other articles on this recently, depending on feedstock the net water usage is lower than for petroleum gasoline as well.
Chromer is offline   Reply With Quote
Old 10-19-2009, 11:33 AM   #3
WhiteKnightSTi
Scooby Specialist
 
Member#: 169250
Join Date: Jan 2008
Chapter/Region: NESIC
Vehicle:
2001 Schweizer 300CB
(wirlybird)

Default

Just to get it out of the way quickly...

WhiteKnightSTi is online now   Reply With Quote
Old 10-19-2009, 12:02 PM   #4
Siper2
Scooby Guru
 
Member#: 1134
Join Date: Mar 2000
Chapter/Region: MAIC
Location: Dillsburg, PA
Vehicle:
2007 BMW 328xi wagon
Silver

Default

^^ I figured someone would. Two replies already? One of them had to be smart enough to remember BttF.
Siper2 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
GM and Mascoma form cellulosic ethanol partnership AVANTI R5 Non-Subaru News & Rumors 2 05-02-2008 10:19 AM
GM and Coskata announce worldwide cellulosic ethanol partnership Chromer Non-Subaru News & Rumors 3 01-13-2008 01:58 PM
First commercial cellulosic ethanol plant in the U.S. NYCshopper Non-Subaru News & Rumors 5 11-09-2007 01:07 PM
America's 1st commercial-scale cellulosic ethanol plant breaks ground Chromer Non-Subaru News & Rumors 2 11-08-2007 10:48 AM
Venture capitalist eyes cellulosic ethanol NYCshopper Non-Subaru News & Rumors 0 01-17-2007 02:03 PM


All times are GMT -4. The time now is 08:45 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.