Coal's crystal ball: Ernie Moniz, professor of physics at MIT, announces a new road map for reducing carbon emissions from coal. Credit: Kevin Bullis
Posted on 10/24/2007 9:55:01 AM PDT by SunkenCiv
According to the MIT report, a clean-coal solution will likely lie in a combination of several new technologies for capturing carbon dioxide and storing it to keep it out of the atmosphere... the MIT report reached the surprising conclusion that an acclaimed new type of coal-fired power plant, called integrated gasification combined cycle (IGCC), may not provide the best solution for reducing carbon emissions. So far no commercial-scale coal plants have been designed to capture carbon dioxide--and without a price on the greenhouse gas, there has been no economic reason to do so. But IGCC has long been lauded as a type of plant that would make it less expensive to capture carbon dioxide in the future because it produces more concentrated carbon dioxide than is emitted from conventional coal plants. Capturing carbon dioxide from an IGCC could be, in theory, relatively cheap and easy to implement. IGCC plants use a process called gasification, in which coal is heated to produce syngas, a combination of carbon monoxide and hydrogen. The carbon monoxide can be converted into carbon dioxide using high-pressure steam. Because the carbon dioxide is highly concentrated, it's possible to separate it from the hydrogen using weakly binding solvent. The hydrogen can then be burned to turn a turbine, or it can be run through a fuel cell to generate electricity. The carbon dioxide would be released from the solvent when engineers allowed the pressure to drop.
(Excerpt) Read more at technologyreview.com ...
Coal's crystal ball: Ernie Moniz, professor of physics at MIT, announces a new road map for reducing carbon emissions from coal. Credit: Kevin Bullis
Clean Diesel from Coal
Technology Review | April 19, 2006 | By Kevin Bullis
Posted on 04/19/2006 8:56:25 AM EDT by aculeus
http://www.freerepublic.com/focus/f-news/1617581/posts
MIT issues call to arms on energy
need policies to avert a “perfect storm” forming around energy.
CNET | May 3, 2006, 2:26 PM PDT | Martin LaMonica Staff Writer
Posted on 05/04/2006 4:53:00 PM EDT by Ernest_at_the_Beach
http://www.freerepublic.com/focus/f-news/1626875/posts
Biowaste to fuels, cars that plug in, lithium-ion batteries that don’t explode...
MIT Technology Review | 12/28/2006 | By Kevin Bullis
Posted on 12/29/2006 12:56:09 PM EST by Red Badger
http://www.freerepublic.com/focus/f-news/1759951/posts
Turning Black Coal Green
Popular Science | 2005 | Se·n Captain
Posted on 02/17/2007 11:40:00 PM EST by SunkenCiv
http://www.freerepublic.com/focus/f-news/1786796/posts
Gasification is a much more expensive process than what they are portraying.
“they run on laser beans”
more like dilithium crystals.
“It’s the mirrors.”
The natural gas produced is being sold at market prices which far exceed the profitability hurdle of $2.25 per MBTU.
Add water to the chemical process and voila GASOLINE.
This new approach obviates the need for that expensive corbamite catalyst.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.
