Archive: Coal

EEI Leaders Say Promise of Carbon Capture and Storage “Overblown”

In a sobering assessment of a key technology that’s expected to help keep the coal industry viable in the face of likely greenhouse gas caps, several electric utility executives have expressed deep concern that the promise of carbon capture and storage for coal-fired power plants has been “overblown” and “oversold.”

Environmentally Sound Handling of Deactivated SCR Catalyst

Selective catalytic reduction systems were introduced as a means of reducing the nitrogen oxide emissions of power generators in the 1980s. Since then, environmental issues have increased in importance, as has the value of an SCR reactor. Unfortunately, because this technology is still so new, not all users understand its full potential and proper maintenance techniques.

PRB Coal Users’ Group enjoys growing interest in its concerns

The 2008 Powder River Basin Coal Users’ Group (PRBCUG) set new records for attendance again this year with more than 400 registered members for the three-and-a-half-day event, 268 of whom were from operating companies. The meeting’s Grand Sponsor was Benetech and its Plant Professionals group. The meeting began with the Power Plant Awards Banquet on […]

Carbon Constraint Conference: Dealing with the climate change conundrum

“Once it’s enacted, the impact of climate change legislation on the electric power industry will be ten times bigger than that of the Clean Air Act,” said Dan Adamson, an attorney with the law firm of Davis Wright Tremaine and chair of the opening session at the 2nd Annual Carbon Constraint Conference (Figure 1). 1. […]

Woods and power company CEOs agree: “The state of the industry is cautious”

It is rare indeed to witness, at an otherwise staid industry forum, the public rebuke of the country’s most prominent supplier to the electric power industry. But at the Keynote session and Power Industry CEO Roundtable of the 2008 ELECTRIC POWER Conference & Exhibition in Baltimore this May, Milton Lee, general manager and CEO of […]

Options for reducing a coal-fired plant’s carbon footprint, Part II

A conventional coal plant’s CO2 emissions can be reduced either after combustion (see Part I of this article in POWER, June 2008) or before. In the latter case, typified by integrated gasification combined-cycle (IGCC) plants, the fuel used is synthesis gas (syngas), which contains mostly hydrogen (H2) and CO. A water-shift reactor converts the CO […]

Luminant’s Big Brown Plant wins for continuous improvement and safety programs

Staff from Luminant’s Big Brown Plant accepted the PRB Coal Users’ Group’s top honor for innovative improvements to coal-handling systems and a sterling safety record. The numbers reveal their accomplishments: an average EFOR less than 4%, an availability factor averaging 90% for a plant that burns a lignite/PRB mix, and staff who worked more than 2.6 million man-hours since March 2000 without a lost-time injury.

Global Monitor (July 2008)

Yucca Mountain plan sent to NRC/ CPV cells get cooling chips from IBM/ StatoilHydro to pilot test first offshore floating wind turbine/ U.S. rivers next massive power source?/ Siemens delivers 500-MW gasifiers/ Algae: A green solution/ POWER digest

Debate on the Cost of Carbon Control Begins

Senate legislation to cap U.S. greenhouse gas (GHG) emissions beginning in 2012 would have generally modest cost impacts on the national economy, leading to reductions in gross domestic product (GDP) by 2030 that range from 0.2%, or $444 billion, to 0.6%, or $1.3 trillion, according to an Energy Information Administration analysis.

But the analysis, which concluded that the costs of the legislation would depend largely on the availability of advanced nuclear and coal-fired generation technologies, drew criticism from Republicans for its projection of a massive buildup of nuclear generation.

A Fieldbus Primer

Many automation engineers are coming face to face with real fieldbus applications for the first time. Fieldbus (the use of digital communications networks for distributed instrumentation and control) is a wonderful technology with many benefits, but fieldbus installation requires some additional considerations over and above normal 4-20 mA projects. In this article, I present some of those issues and show you how to deal with them.