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printreg, September, 2000
RE: Particulate & NOx Emission Reductions


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From:Jeff Adrian(jeffadrian@johnroberts.com)
Date:05 Sep 00 14:17:40 -0500


RE: Particulate & NOx Emission Reductions 9/5/00 Gary: to the best of my knowledge, and based upon my experience, I do not believe that NOx emissions are an issue for most printers. As we know, NOx emissions are mostly derived from the burning of fossil fuels, so for printers, fuels used to heat their facilities and to operate dryers would be the most likely source. If natural gas is the fuel being used, emissions would be very small indeed (calculated using AP-42). If one used fuel oils (#2 or #4), the emissions NOx would be somewhat more. In neither case, would emissions be on a par with VOCs. When it comes to particulates, one possible source may be from pneumatic trim waste systems delivering the trim waste to a cyclonic separator. The key here would be if the air stream was vented to the outside. This would be expensive as the massive amounts of air involved would be conditioned air (heated, cooled and hymidified). To conserve energy, we filter and return all pneumatic air back into the building and thus also avoid any issue of release to the environment. Hope this helps. Jeff Adrian Director, Environment & Safety The John Roberts Company



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