US Takes Initiative On Clean Coal


Timetrvlr
#1
Canada should be doing this too!

LINK

Excerpts from a US Department of Energy press release:

Government, Industry Agree to Build Zero-Emissions Power Plant of the Future
.................................................. ..................
Quote:

The nearly $1 billion government-industry project will produce electricity and hydrogen with zero-emissions, including carbon dioxide, a greenhouse gas.

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Quote:

At the heart of the project will be coal-gasification technologies that can eliminate common air pollutants such as sulfur dioxide and nitrogen oxides and convert them to useable by-products such as fertilizers and soil enhancers. Mercury pollutants will also be removed.

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And they plan to sequester the Carbon Dioxide too:


Quote:

Carbon sequestration will be one of several key features that will set the prototype plant apart from other electric power plant projects. FutureGen will be designed to capture carbon dioxide and sequester it in deep underground geologic formations. No other power plant in the world has been built with this capability. The initial goal will be to capture 90 percent of the plant’s carbon dioxide, but capture of nearly 100 percent may be possible with advanced technologies.
Once captured, the carbon dioxide will be injected as a compressed liquid-like fluid deep underground, perhaps into saline reservoirs thousands of feet below the surface of much of the United States. It could even be injected into oil or gas reservoirs, or into unmineable coal seams, to enhance petroleum or coalbed methane recovery. Once trapped in these formations, the greenhouse gas would be permanently isolated from the atmosphere. The project will include an intensive measurement and monitoring effort to verify the efficacy of carbon sequestration.

 
Jo Canadian
#2
The energy crunch is starting to make people come up with some interesting ideas. This one here I find quite interesting:


Quote:

Ramp creates power as cars pass

A road ramp that uses passing cars to generate power has been developed.

Dorset inventor Peter Hughes' Electro-Kinetic Road Ramp creates around 10kW of power each time a car drives over its metal plates... more

 
Timetrvlr
#3
I'm a little troubled by this quote from the press release:
Quote:

Carbon sequestration will be one of several key features that will set the prototype plant apart from other electric power plant projects. FutureGen will be designed to capture carbon dioxide and sequester it in deep underground geologic formations. No other power plant in the world has been built with this capability.

I suppose technically it is true because this will be a new plant built with this capability from the start. The Australians did this several years ago by retrofitting two existing coal-burning power plants with emissions capture technology. CO2 Capture and Sequestration (external - login to view)

I think the Americans have just claimed the technology for their own after the Aussies developed it! A quote from their study:
Quote:

Note (1) The IGCC system removes sulphur from the fuel gas as H2S and COS compounds through the Selexol process prior to combustion in turbines

Of the two CO2 disposal options considered in this study, the disposal in a disused gas field would probably present less technical uncertainties at present and greater certainty of sequestering CO2 on a long term basis.

 

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