URS CORP June 19, 2014 - URS Corporation has developed a novel approach to improve the energy efficiency of coal-fired power plants by 1 to 3 percent, with a corresponding reduction in carbon dioxide (CO2) emissions.
The new process, based on SBS Injection (sodium-based solution) technology, enables power plants to realize significant operational cost savings by burning less coal. It also results in less coal combustion residual wastes and lower air pollution emissions.
The SBS technology injects sorbent into the combustion system, removing SO3 (sulfur trioxide) prior to the selective catalytic reduction system and/or air preheater. It improves plant operational performance and reliability, enhancing the capture and removal of mercury while helping the plant to meet stringent sulfuric acid emission limits. By eliminating sulfuric acid and other compounds from the flue gas, which lead to fouling and corrosion of air preheater equipment in the power plant, the performance and efficiency of the equipment can be dramatically improved.
Working with a leading supplier of air preheaters for the power industry, long-term testing of the SBS technology has successfully shown recovery of thermal energy from combustion gases down to temperatures as low as 220°F, corresponding to an improvement in overall plant efficiency of up to 3 percent or approximately a 300 Btu/MW-hr. heat rate reduction. To achieve maximum efficiency gains, most plants will require relatively simple modifications to the air preheater.
"This new development is good for the power industry and the environment," stated Sterling Gray, URS Business Development Manager. "It offers a reasonable and cost-effective way to reduce carbon emissions and combat climate change, without adversely affecting U.S. electricity prices or the economy." To learn more about URS' process technology services, please go to (www.urs-processtechnologies.com).
URS Corporation is a leading provider of engineering, construction, and technical services for public agencies and private sector companies around the world. The Company offers a full range of program management; planning, design and engineering; systems engineering and technical assistance; construction and construction management; operations and maintenance; management and operations; information technology; and decommissioning and closure services. URS provides services for federal, oil and gas, infrastructure, power, and industrial projects and programs. Headquartered in San Francisco, URS Corporation has more than 50,000 employees in a network of offices in nearly 50 countries (www.urs.com).
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