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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/TE02000236" target="_blank" >TE02000236: Centrum kompetence pro energetické využití odpadů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Environmental Management

ISSN

0301-4797

e-ISSN

—

Svazek periodika

166

Číslo periodika v rámci svazku

JAN 15

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

499-511

Kód UT WoS článku

000367757200052

EID výsledku v databázi Scopus

2-s2.0-84946893426