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RSR`s Quemetco selects BOC LoTOx TM System to manage emissions from smelting furnace

BOC Gases : 29 April, 2002  (Company News)
RSR Corporation's Quemetco Inc. has selected the BOC LoTOx nitrogen oxide control system to meet emissions requirements at its reverberatory furnace in City of Industry, California.
BOC won the contract to install and operate its patented LoTOx NOx control system following a month-long demonstration at the City of Industry site. The system was shown to be capable of reducing NOx levels by up to 90 percent under variable load conditions. The demonstration, which was partly funded by the California Air Resources Board’s Innovative Clean Air Technologies program, used a BOC mobile demonstration trailer to treat a slipstream from the Quemetco furnace exhaust. The pilot trailer handled possible variations in actual furnace exhaust gas conditions at the plant.

According to BOC’s Bob Ferrell, vice president LoTOx business development, the Quemetco site posed several challenges. He said, 'The reverberatory furnace used at Quetmetco is operated under variable load conditions and flue gas temperatures, which create fluctuation in the NOx levels being generated. During the demonstration, the LoTOx system was able to successfully follow these load swings to achieve Quemetco's targeted outlet NOx. Once installed, the full-scale system will enable Quemetco to meet stringent California emissions limits without affecting their furnace’s operation. The LoTOx system is a simple, reliable, effective, low-cost solution for NOx control. We are very pleased to be able to apply the technology to assist one of our valued customers achieve their environmental goals.'

Homer Hine, vice president of the Dallas, Texas-based RSR Corporation, the parent company of Quemetco, Inc., said, 'BOC did an effective job in using the pilot demonstration trailer to illustrate the kind of NOx removal that could be obtained using their process. Implementing the LoTOx system at our facility will allow Quemetco the operational flexibility we need and enable us to comply with environmental requirements at minimum cost.'

Quemetco is a South Coast Air Quality Management District facility, and a Title V facility. In addition to local district permitting requirements, significant projects must be reviewed and approved by the Environmental Protection Agency, Region IX, San Francisco.

Mike Buckantz of Justice Associates, an environmental consultant to Quemetco, said 'We applied to the SCAQMD for a ‘Permit To Construct’ to modify the reverberatory furnace air pollution control system.' At Quemetco’s site, the existing sulfur oxides scrubber will now also be used for LoTOx NOx control. This multi-constituent control integration results in lower overall compliance costs. 'Because we did not request any changes directly related to furnace operations,' Buckantz continued, 'the existing furnace permit remained untouched, thus greatly simplifying the permitting process.'

NOx, or nitrogen oxides, are an undesirable component of flue gases released from combustion processes into the atmosphere. NOx emissions are regulated under the Clean Air Act and state implementation programs. BOC’s LoTOx system uses ozone as a reaction agent to selectively oxidize relatively insoluble NOx in the flue gas to the higher oxides of nitrogen, which are readily soluble and easily removed in a wet scrubber.

The LoTOx technology is the recipient of Chemical Engineering Magazine’s 2001 Kirkpatrick Award, granted every two years to honor outstanding chemical engineering technology that through group effort has been successfully developed and commercialized.

LoTOx systems are installed and operating in a variety of industries, including steel production, power generation, and recycling. In addition, BOC has entered into marketing and licensing alliances with several companies that offer compatible emissions control technologies.

BOC offers solutions to a wide range of customers’ environmental needs such as air emissions, potable water and wastewater treatment, solid waste treatment, clean fuels, and enhanced combustion processes. It draws upon the extensive technological resources within BOC and those of its strategic partners to find best solutions to environmental problems.

Quemetco is a wholly-owned subsidiary of RSR Corporation, headquartered in Dallas, Texas. Through its three strategically located plants, the company reduces the amount of waste in the environment by recycling more than a third of the used lead-acid batteries generated in the United States every year.
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