Abstract
In order to meet the potential future needs of the power industry resulting from air toxic emissions regulation, ABB Combustion Engineering, Inc. (ABB CE) has been conducting a multi-faceted R and D program aimed at clarifying the impacts of fuel properties, furnace design and operating conditions (i.e., staged combustion) on air toxics emissions. Work on both organic and inorganic air toxics has been carried out in laboratory-, pilot- and commercial-scale furnaces. This paper presents the organic air toxics (Volatile Organic Compounds, Semi-Volatile Organic Compounds and Polycyclic Aromatic Hydrocarbons--VOCs, SVOCs and PAHs) results from combustion testing of an Eastern bituminous coal in a three-stage entrained flow reactor, with comparison to emission data from open literature field experience. This laboratory-scale reactor simulates the rapid suspension firing conditions encountered in pulverized-coal fired boilers. These results indicate that while coal combustion does result in the emissions of organic HAPs (VOCs, SVOCs and PAHs), the emission levels of these micro-pollutants were found to be quite low as compared to EPA.s MACT stipulations. Organic HAP results were obtained as a function of various operating parameters (e.g., reaction medium, stoichiometry) and are discussed in this paper.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
