Dust separation on bio mass combustion plants

Srebrenkoska, Vineta (2011) Dust separation on bio mass combustion plants. In: Course development workshop 1, 17-21 Jan 2011, Ohrid, Macedonia.

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Abstract

Biomass is material from vegetation, it can be used as a fuel in various boilers and combustor. The main components: carbon, oxygen and hydrogen but it also contains nitrogen, sulphur, small amounts of chlorides and ash. The main part of the ash comprises: Ca, K, Si, Mg, Mn, Al, Fe, P, Na and Zn. During combustion, various kinds of impurities are generated and some of them we find in the flue gas. Most of these are related to the composition of the biomass: particles from ash, NOx from nitrogen, SO2 from sulphur, etc. The impurities in the flue gas are harmful if they are emitted to the atmosphere. The gas cleaning systems can be divided as follows: 1. Removal of particles or dust collection; 2. Removal of water soluble gases: SO2, HCl, HF and NH3; 3. Removal of NOx, mainly NO; 4. Removal of the very toxic substances: dioxin and mercury (Hg); One equipment or system can be specific for a certain pollutant or can, sometimes with some additions, take care of the whole gas cleaning. There are often several possible solutions for an actual plant with respect to emission limits, performance, reliability, costs, etc.

Item Type: Conference or Workshop Item (Speech)
Subjects: Engineering and Technology > Materials engineering
Divisions: Faculty of Technology
Depositing User: Vineta Srebrenkoska
Date Deposited: 02 Dec 2012 09:44
Last Modified: 07 Aug 2015 11:07
URI: http://eprints.ugd.edu.mk/id/eprint/2714

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