Possibilities of Mercury Removal in the Dry Flue Gas Cleaning Lines of Solid Waste Incineration Units

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F16%3A00450927" target="_blank" >RIV/67985858:_____/16:00450927 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jenvman.2015.11.001" target="_blank" >http://dx.doi.org/10.1016/j.jenvman.2015.11.001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jenvman.2015.11.001" target="_blank" >10.1016/j.jenvman.2015.11.001</a>

Result language
angličtina
Original language name
Possibilities of Mercury Removal in the Dry Flue Gas Cleaning Lines of Solid Waste Incineration Units
Original language description
Dry methods of the flue gas cleaning are useful particularly in smaller solid waste incineration units. The amount and forms of mercury emissions depend on waste composition, content of mercury and chlorine and on the entire process of the flue gas cleaning. In the case of high HCl/total Hg molar ratio in the flue gas, the majority of mercury is present in the form of HgCl2 and a smaller amount in the form of mercury vapors at higher temperatures. Removal of both main forms of mercury from the flue gas is dependent on chemical reactions and sorption processes at the temperatures below approx. 340°C. Significant part of HgCl2 and a small part of elemental Hg vapors can be adsorbed on fly ash and solid particle in the air pollution control processes, which are removed in dust filters. Injection of non-impregnated active carbon or activated lignite coke particles is able to remove mainly the oxidized Hg2þ compounds. Vapors of metallic Hgo are adsorbed relatively weakly. Much better chemisorption of Hgo together with higher sorbent capacity is achieved by AC-based sorbents impregnated with sulfur, alkali poly-sulfides, etc.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20402 - Chemical process engineering

Project
<a href="/en/project/TE02000236" target="_blank" >TE02000236: Waste-to-Energy (WtE) Competence Centre</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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