testo completo in italiano

27 February 2003

Energy Department Announces Innovative Clean Energy Project, February 27, 2003

(Prototype plant will produce electricity, hydrogen, low emissions)

The Bush administration announced the newest element in its climate change and hydrogen fuel initiatives February 27, an initiative that will extract energy from coal by gasification instead of by combustion .

The Integrated Sequestration and Hydrogen Research Initiative is a joint government-industry plan to build and operate a coal-fired electric and hydrogen production plant. But the burning of coal is considered a polluting technology for power generation because it results in the emission of greenhouse gases that cause global warming. The new initiative will instead employ gasification, a cutting-edge technology, which will also produce hydrogen, according to an Energy Department press release.

The resulting hydrogen is to be used in conjunction with the hydrogen fuel goals President Bush has announced since his state of the Union address in January.

Developing technologies to safely "sequester" the plant's emissions will be another technological goal of the project. Rather than releasing emissions into the atmosphere as most power plants currently do, 90 percent of the emissions will be sequestered, or stored away, in order to ease global warming.

Following is the Energy Dept. text:
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U.S. Department of Energy
Office of Fossil Energy
February 2003

"Technology offers great promise to significantly reduce greenhouse gas emissions, especially carbon capture, storage, and sequestration technologies."

President George W. Bush Announcing the National Climate Change Technology Initiative June 11, 2001
U.S. Department of Energy
Office of Fossil
Energy February 2003

FutureGen -- A Sequestration and Hydrogen Research Initiative

The Integrated Sequestration and Hydrogen Research Initiative is a $1 billion government/ industry partnership to design, build and operate a nearly emission-free, coal-fired electric and hydrogen production plant. The 275-megawatt prototype plant will serve as a large scale engineering laboratory for testing new clean power, carbon capture, and coal-to-hydrogen technologies. It will be the cleanest fossil fuel-fired power plant in the world.

Responding to the President's Initiatives

The project is a direct response to the President's Climate Change and Hydrogen Fuels Initiatives. President Bush emphasized the importance of technology in stabilizing greenhouse gas concentrations in the atmosphere with two major policy announcements: the National Climate Change Technology Initiative on June 11, 2001, and the Global Climate Change Initiative on February 14, 2002. Carbon capture and sequestration technologies likely will be essential to meeting the President's goals. Without them, it will be virtually impossible to limit global carbon emissions.

The President's Hydrogen Fuel Initiative, announced on January 28, 2003, envisions the ultimate transformation of the nation's transportation fleet from a reliance on petroleum to the use of clean-burning hydrogen. Today, most hydrogen in the United States and about half of the world's hydrogen supply, is produced from natural gas. The new technologies to be integrated into the prototype plant will expand the options for producing hydrogen from coal, providing a more diversified and secure source of feedstocks for the President's initiative.

The Technology

Virtually every aspect of the prototype plant will employ cutting-edge technology. Rather than using traditional coal combustion technology, the plant will be based on coal gasification which produces a synthesis gas in which the coal's carbon is converted to a "synthesis gas" made up primarily of hydrogen and carbon monoxide.

Advanced technology will be used to react the synthesis gas with steam to produce additional hydrogen and a concentrated stream of CO2. Initially the hydrogen will be used as a clean fuel for electric power generation either in turbines, fuel cells or hybrid combinations of these technologies. The hydrogen could also be supplied as a feedstock for refineries. In the future, as hydrogen-powered automobiles and trucks are developed as part of President Bush's Hydrogen Fuels Initiative, the plant could be a source of transportation-grade hydrogen fuel.

The captured CO2 will be separated from the hydrogen perhaps by novel membranes currently under development. It would then be permanently sequestered in a geologic formation. Candidate reservoir(s) could include depleted oil and gas reservoirs, unmineable coal seams, deep saline aquifers, and basalt formations – all common in the United States. The reservoir(s) will be intensively monitored to verify the permanence of CO2 storage.

Goals

-- Design, construct, and operate a nominal 275-megawatt (net equivalent output) prototype plant that produces electricity and hydrogen with near-zero emissions. The size of the plant is driven by the need for producing commercially-relevant data, including the requirement for producing one million metric tons per year of CO2 to adequately validate the integrated operation of the gasification plant and the receiving geologic formation.

-- Sequester at least 90 percent of CO2 emissions from the plant with the future potential to capture and sequester nearly 100 percent.

-- Prove the effectiveness, safety, and permanence of CO2 sequestration.

-- Establish standardized technologies and protocols for CO2 measuring, monitoring, and verification.

-- Validate the engineering, economic, and environmental viability of advanced coal-based, near-zero emission technologies that by 2020 will: (1) produce electricity with less than a 10% increase in cost compared to non-sequestered systems; (2) produce hydrogen at $4.00 per million Btus (wholesale), equivalent to $0.48/gallon of gasoline, or $0.22/gallon less than today's wholesale price of gasoline.

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