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Brewer E.,University of California at Riverside | Li Y.,University of California at Riverside | Finken B.,Air Quality Services Inc. | Quartucy G.,Fossil Energy Research Corp | And 4 more authors.
Atmospheric Environment | Year: 2016

The generation of electricity from natural gas-fired turbines has increased more than 200% since 2003. In 2007 the South Coast Air Quality Management District (SCAQMD) funded a project to identify control strategies and technologies for PM2.5 and ultrafine emissions from natural gas-fired turbine power plants and test at pilot scale advanced PM2.5 technologies to reduce emissions from these gas turbine-based power plants. This prompted a study of the exhaust from new facilities to better understand air pollution in California. To characterize the emissions from new natural gas turbines, a series of tests were performed on a GE LMS100 gas turbine located at the Walnut Creek Energy Park in August 2013. These tests included particulate matter less than 2.5 μm in diameter (PM2.5) and wet chemical tests for SO2/SO3 and NH3, as well as ultrafine (less than 100 nm in diameter) particulate matter measurements. After turbine exhaust was diluted sevenfold with filtered air, particle concentrations in the 10-300 nm size range were approximately two orders of magnitude higher than those in the ambient air and those in the 2-3 nm size range were up to four orders of magnitude higher. This study also found that ammonia emissions were higher than expected, but in compliance with permit conditions. This was possibly due to an ammonia imbalance entering the catalyst, some flue gas bypassing the catalyst, or not enough catalyst volume. SO3 accounted for an average of 23% of the total sulfur oxides emissions measured. While some of the SO3 is formed in the combustion process, it is likely that the majority formed as the SO2 in the combustion products passed across the oxidizing CO catalyst and SCR catalyst.The 100 MW turbine sampled in this study emitted particle loadings of 3.63E-04 lb/MMBtu based on Methods 5.1/201A and 1.07E-04 lb/MMBtu based on SMPS method, which are similar to those previously measured from turbines in the SCAQMD area (FERCo et al., 2014), however, the turbine exhaust contained orders of magnitude higher particles than ambient air. © 2015 Elsevier Ltd. Source

Boddeker S.,South Coast Air Quality Management District SCAQMD | Polidori A.,South Coast Air Quality Management District SCAQMD | Fine P.M.,South Coast Air Quality Management District SCAQMD
Air and Waste Management Association - Symposium on Air Quality Measurement Methods and Technology 2010 | Year: 2010

Our newy developed MMS has been designed to integrate multiple monitoring technologies on a mobile platform and to characterize UFP, BC and other important particulate and gaseous pollutants in real time. A preliminary analysis of the data Collected in Colton showed that the use of the propane generator introduced a substantial background noise in the UFP concentration measurements obained at this site. This was considerably allieviated by removing the power line condition from the DC to AC inverter and ducting the exhaust from the MMS. A more detailed data analysis from this and other field measurement studies is currently underway and will be discussed during the presentation. Source

Tisopulos L.,South Coast Air Quality Management District SCAQMD | Cassmassi J.C.,South Coast Air Quality Management District SCAQMD | Quinn G.,South Coast Air Quality Management District SCAQMD | Orellana K.,South Coast Air Quality Management District SCAQMD
Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA | Year: 2011

The Governing Board of the South Coast Air Quality Management District (AQMD) adopted amendments to its Regional Clean Air Incentives Market (RECLAIM) program on 11/5/2010 that will result in cumulative reductions of > 51% reduction, of SO x from the total RECLAIM program by 2019. The majority of the SO x emissions are generated from seven categories of sources, i.e., FCC units, sulfur recovery and tail gas treatment units, refinery boilers and heaters, sulfuric acid manufacturing plants, a container glass melting furnace, coke calciner, and cement kilns and a coal fired steam boiler at a cement manufacturing facility. The control technologies that were identified for these sources included wet gas scrubbers, SO x reducing catalysts, lower sulfur fuels, improving equipment efficiency, and spray dry absorbers. Through a collaborative effort among the various stakeholders and the AQMD, the recent amendment to the SO x RECLAIM program has resulted in considerably more than expected SO x reductions. This is an abstract of a paper presented at the 104th AWMA Annual Conference and Exhibition 2011 (Orlando, FL 6/21-24/2011). Source

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