Air Products to Site CO2 Purification System at Connecticut Test Facility for Oxyfuel Technology Development Testing
Project Funded In Part By The United States Department of Energy
In the project, Air Products will purify a portion of the CO2 from flue gas, or waste gas, coming from Alstom’s tangentially-fired (T-fired) coal combustion unit operated in oxy-combustion mode. T-fired boilers are the most prevalent pulverized boilers used to burn coal and make steam at coal-fired power plants, and make up over 40 percent of the installed base of utility boilers in the U.S. and around the world. Air Products’ technology is designed to purify the CO2 by targeting removal of up to 95 percent of the impurities in the waste gas including sulfur oxides (SOx), hydrogen chloride, and nitrogen oxides (NOx). These acidic impurities must be removed from the CO2 stream to prevent corrosion before the purified CO2 is introduced into a pipeline. Air Products’ CO2 purification and compression system is targeted to achieve over 90 percent CO2 capture, while improving cost savings over other technology such as amine-scrubbing, or more expensive and complex flue gas de-sulfurization units and de-NOx units.
“It’s now time to advance the technology from study and bench level testing to the next scale evaluation. Air Products’ oxyfuel technology has optimized the compression process to remove impurities to an acceptable level in the gas to make carbon sequestration possible. The ability to achieve this at lower costs is encouraging to industries with large scale CO2 emissions. We look forward to the results of this project and applaud DOE for its dedicated efforts on this important technology,” said
This project is part of DOE’s Office of Fossil Energy’s Existing Plants – Emissions & Capture program (EPEC), which is managed by the National Energy Technology Laboratory. The EPEC program maintains a portfolio of research projects to address these and other environmental challenges faced by America’s existing fleet of coal-fired power plants.
Air Products’ oxyfuel technology can reduce the cost of capturing CO2 for the power industry. The company has specifically focused on the purification of the resulting oxyfuel combustion flue gas, developing a robust process for the efficient removal of trace impurities. Air Products’ proprietary sour compression technology uses a staged compression process to optimize pressure, hold-up, and residence time to allow removal of impurities during the compression process. This allows cost savings in the oxyfuel combustion process and minimizes the content of these components in the sequestered CO2. For more information on Air Products’ CO2 and purification technologies please visit www.airproducts.com/CO2_capture.
Air Products (NYSE: APD) serves customers in industrial, energy, technology and healthcare markets worldwide with a unique portfolio of atmospheric gases, process and specialty gases, performance materials, and equipment and services. Founded in 1940, Air Products has built leading positions in key growth markets such as semiconductor materials, refinery hydrogen, home healthcare services, natural gas liquefaction, and advanced coatings and adhesives. The company is recognized for its innovative culture, operational excellence and commitment to safety and the environment. Air Products has annual revenues of over
***NOTE: This release may contain forward-looking statements. Actual results could vary materially, due to changes in current expectations.
SOURCE Air Products