COAL POWER Direct

The Environmental Protection Agency (EPA) issued a final rule in December that strengthens its National Ambient Air Quality Standard (NAAQS) for fine particulate matter (PM2.5) to 12.0 micrograms per cubic meter (μg/m³) but declared it would not finalize a proposal to update separate secondary PM2.5 standards. The final rule’s issuance was lauded by environmental and public health groups, though industry groups opposed it, citing concerns that nonattainment areas would suffer economic setbacks.

Fuel for power generation will account for about 55% of demand-related energy growth through 2040, ExxonMobil forecasts in its latest annual energy forecast. Like several other forecasters, the Irving, Texas–based oil and gas company also predicts that natural gas will emerge as the leading source of electricity generation by 2040.

The Environmental Protection Agency (EPA) on Dec. 20 finalized changes to a specific set of adjustments to the Clean Air Act that apply to coal, oil, natural gas, and biomass boilers and certain solid waste incinerators.

Embattled Environmental Protection Agency (EPA) Administrator Lisa Jackson announced her resignation on December 27 citing the pursuit of “new challenges” and “opportunities to make a difference” as the reasons for leaving her high-profile post. I suspect her departure was caused less by altruism and more by self-preservation.

The world’s first supercritical pulverized coal–fired low mass flux vertical tube Benson boiler is Jinzhushan 3, located in the Hunan Province of the People’s Republic of China. The 600-MW Babcock & Wilcox Power Generation Group Inc. once-through boiler burns Chinese anthracite using downshot pulverized coal (PC) technology. Part 1 of this three-part article presented a summary of the project design features. Part 2 discussed the boiler technology. This third and final part reviews the plant’s performance test results.

Duke Energy said  in mid-October that testing was under way in preparation for commercial operation next year of its 630-MW integrated gasification combined cycle (IGCC) Edwardsport power plant in Knox County, Ind.

A bipartisan delegation of lawmakers from Pennsylvania on Oct. 15 urged the Environmental Protection Agency (EPA) to consider creating a separate subcategory for power plants that convert coal refuse into energy in its final Mercury and Air Toxics Standards (MATS). Though waste coal plants made an important environmental contribution by reducing coal refuse piles, the hydrochloric acid (HCl) standard in the MATS rule could push them out of business, they said.

The Environmental Protection Agency (EPA) on Oct. 5 appealed a federal court decision handed down on Aug. 21 that vacated the agency’s July 2011–finalized Cross-State Air Pollution Rule (CSAPR) because, the court said, it violated federal law. The EPA is now seeking a rehearing en banc that would involve all eight judges that serve at the U.S. Court of Appeals for the D.C. Circuit.

The 15-year-old Kyoto Protocol expires at the end of 2012. With U.S. CO₂ emissions at a 20-year low, what’s the point in the U.S. signing a new agreement?

This synopsis of today’s most interesting research related to power generation gives you a glimpse of what’s possibly coming to your plant in the not-so-distance future. Research under way today will surely determine how power plants are designed, operated, and maintained for many years to come.