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FGD increases particulate emissions in one study
This is an 8-year old study showing increases in particulate emission through the FGD. The U.S. experience is that well operated FGD systems aid in particulate reduction and that condensibles are not increased but that they can occur in the stack and be measured by the PM monitor rather than forming after they leave the stack.
Revision Date: 7/25/2019
Tags: Emissions Reduction
Biomass reburn for NOx reduction
Biomass reburn has the advantage of net CO2 reduction as well as reducing NOx. This is an 8-year old study, but we will pursue the authors for any updates.
Revision Date: 7/25/2019
Tags: Emissions Reduction
This study by Sargent & Lundy provides methods to determine costs of DSI for acid gas removal. The sorbent requirement is a function of particle size, particulate control device, and other factors. 2016 cost factors are utilized. Based on commercial testing, removal efficiencies with DSI are limited by the particulate capture device employed. Trona, when captured in an ESP, typically removes 40 to 50% of SO2 without an increase in particulate emissions, whereas hydrated lime may remove an even lower percentage of SO2. A baghouse used with sodium-based sorbents generally achieves a higher SO2 removal efficiency (70 to 90%) than that of an ESP. DSI technology, however, should not be applied to fuels with sulfur content greater than 2 lb SO2/MMBtu.
Revision Date: 2/25/2019
Tags: 221112 - Fossil Fuel 化石燃料, Sargent & Lundy, Dry Sorbent Injection