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NOXSO PILOT PROVES ACID RAIN CLEAN UP PROCESS AN OVERWHELMING SUCCESS

 BETHEL PARK, Pa., April 13 /PRNewswire/ -- Noxso Corporation (NASDAQ: NOXO) said its patented clean coal process removed 94 percent of the acid rain pollutants from flue gas at a coal-fired generating station operated by Ohio Edison.
 The results, obtained during 6500 hours of operation of the 5 MW pilot project in Toronto, Ohio are considered significant because they are the first to confirm the pollution clean up efficiency of the system at a scale indicative of commercial operation. Previously observed clean up efficiencies were at smaller scales, no larger than one-seventh the size of the test just completed.
 "Noxso's ability to clean up flue gases without creating a waste stream, and its ability to reduce nitrogen oxides are as important to utilities as SOx removal," Robert J. McWhorter, senior vice president at Ohio Edison, told utility and government representatives at a technical symposium at the pilot plant last week.
 The Noxso Process(TM) simultaneously removes both sulfur dioxide (SOx) and nitrogen oxides (NOx), the two components of acid rain. Under operating conditions typical of the Toronto installation, the Noxso Process removed 95 percent of the SOx and 90 percent of the NOx. The weighted average of the two produced an overall acid pollutant removal rate of 94 percent, versus a target of 90 percent.
 Federal laws now in effect require coal-fired utilities nationwide to reduce emissions of SOx by roughly 50 percent and NOx by substantial amounts in two phases, with initial compliance beginning in 1995. Reductions beyond the required amount will create so called "pollution credits," which can be sold or used to offset non-complying emissions at another plant owned by a utility.
 "The economic value of the Noxso Process goes far beyond clean up of the plant which it is installed," said Dr. L.G. Neal, president of Noxso. "Its high pollution removal efficiency will allow utilities to either avoid clean-up costs at other generating stations in their system, or sell the credits for cash to others."
 Unlike srubbers, which create sludge, the Noxso Process produces only saleable by-products, either elemental sulfur or sulfuric acid at the users' option. Both have commercial value. Noxso said this is one of the reasons why the Electric Power Research Institute (EPRI) ranked its process economically competitive to conventional limestone scrubbers coupled with Selective Catalytic Reduction technology to minimize NOx emissions.
 In addition, the Noxso Process does not interfere with the combustion efficiency of the boiler, as is the case with "Low-NOx" burners. It is located just ahead of the plant's emissions stack, and its NOx removal is much higher than methods requiring changes to boilers, Noxso said.
 The system operates by passing flue gas through a bed of small alumina beads, or sorbent, which chemically trap the SOx and NOx. The sorbent is then heated and treated successively with natural gas and steam to release the pollutants, which are turned into saleable by- products.
 As the pilot test drew to a close, engineers made refinements to the process. These included installation of a double bed and in-bed water spray to the absorber, which improved removal efficiencies to as high as 99 percent for SOx and 95 percent for NOx.
 The $12 million pilot program at Ohio Edison was funded primarily by the U.S. Department of Energy and the Ohio Coal Development Office. Commercial support for the project in addition to Noxso included Ohio Edison, W.R. Grace & Co., and Morrison Knudsen.
 Results from the project are being incorporated into the first commercial installation, a 115 MW Noxso system at Ohio Edison's Niles, Ohio Plant, Unit Number 1. Total funding for the project is $66 million. The U.S. Government and other parties are providing $45 million with the remaining funding coming from Noxso and its partners. Construction is planned to start next year, assuming all the project's funding is raised.
 -0- 4/13/93
 /CONTACT: Robert Long of Noxso Corp., 412-854-1200, or Thomas Redington of Redington, Inc., 203-222-7399, or 212-926-1733, for Noxso Corp./
 (NOXO)


CO: Noxso Corporation ST: Pennsylvania IN: SU:

TM-LD -- NYTU004 -- 5149 04/13/93 10:39 EDT
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Date:Apr 13, 1993
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