Air pollutant emissions from coal-fired power plants in China over the past two decades

Characteristics of condensable particulate matter before and after wet flue gas desulfurization and wet electrostatic precipitator from ultra-low emission coal-fired power plants in China

Review of hazardous materials in condensable particulate matter

Characteristics of water-soluble ions in condensable particulate matter emitted from stationary sources in Wuhan

Distribution and emissions of trace elements in coal-fired power plants after ultra-low emission retrofitting.

The dry impinger method, the indirect dilution method, and the direct dilution method can be used to measure the condensable particulate matter (CPM) emissions. We tested these methods in determini...

Evaluating Airborne Condensable Particulate Matter Measurement Methods in Typical Stationary Sources in China

With the retrofitting of coal-fired power plants and steel plants for ultra-low-emission control, the concentration of filterable particles (FPM) from these sources is decreasing gradually. The condensable particle matter (CPM) draws more attention. The understanding of CPM emission concentration and chemical characteristics is still limited. There has been no standard determination method of CPM in China until now. In this study, three methods, including the dry impinger method (US EPA method 202), indirect dilution method, and direct dilution method, are discussed and compared in measuring CPM emissions from coal-fired power plants, coke-making plants and sintering plants. The results show that method 202 overestimates the emissions of CPM, due to the fact that the gaseous HCl or SO2 dissolves into condensable liquid and cannot be completely eliminated by N2 purging after sampling. Instead, CPM measured using the indirect dilution method better represents its real emission levels into the atmosphere.

Measuring the Condensable Particle Matter from a Stationary Source

The invention discloses a pollution source coagulable particulate matter sampling device and method in the field of pollution source monitoring. A particulate matter classification device is placed ina fixed pollution source flue and is connected with each of an air distribution plate in a dilution cavity and a filterable particulate matter collection device through flue gas pipelines; a diluentair supply device, a diluent air organic matter and water vapor removal device, a diluent air particulate matter filtering device, a diluent air flow meter and a diluent air inlet of the dilution cavity are connected in sequence through a pipeline; a fist mixed gas outlet of the dilution cavity, a bypass gas particulate matter filtering device, a bypass gas flow meter and a bypass gas extraction device are connected in sequence through a pipeline; and a second mixed gas outlet of the dilution cavity, a total particulate matter collection device, a total particulate matter flow meter and a total particulate matter air extractor are connected in sequence through a pipeline. According to a measurement method provided by the invention, the particulate matter and total particulate matters can be collected at the same time, and then a difference value is calculated to obtain the coagulable particulate matters.

Pollution source coagulable particulate matter sampling device and method

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Evaluating Airborne Condensable Particulate Matter Measurement Methods in Typical Stationary Sources in China

Measuring the Condensable Particle Matter from a Stationary Source

Pollution source coagulable particulate matter sampling device and method