Vliv oxidu siřičitého, peroxidu vodíku a kysliny sírové na de novo syntézy PCD/F a PCB v atmosféře N2 + 10% O2 za laboratorních podmínek

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F07%3A00019416" target="_blank" >RIV/60461373:22340/07:00019416 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985858:_____/07:00096153

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of sulfur dioxide, hydrogen peroxide and sulfuric acid on the de novo synthesis of PCDD/F and PCB in the N2 + 10 % O2 atmosphere under model laboratory conditions.

Popis výsledku v původním jazyce

In a laboratory model system consisting of fly ash from municipal waste incinerator, CuCl2 Ć 2H2O, NaCl and activated carbon in N2 + 10% O2 atmosphere, the de novo synthetic reactions of formation of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs) were studied under laboratory conditions in the presence of sulfur dioxide, hydrogen peroxide, and sulfuric acid. It has been found that the formation of PCDD is suppressed by sulfur dioxide more efficiently than the formation of PCDF. A similar effect has also been observed in the presence of hydrogen peroxide. The formation of PCDF is strongly suppressed in the presence of sulfuric acid. On the basis of the experimental results and thermodynamic calculations, the following mechanisms are proposed and discussed: oxidative destruction of PCDD and PCDF oxygen rings, conversion of cupric chloride and possibly also cupric oxide into the non-reactive sulfate, and the Deacon oxychlorination pr

Název v anglickém jazyce

Effect of sulfur dioxide, hydrogen peroxide and sulfuric acid on the de novo synthesis of PCDD/F and PCB in the N2 + 10 % O2 atmosphere under model laboratory conditions.

Popis výsledku anglicky

In a laboratory model system consisting of fly ash from municipal waste incinerator, CuCl2 Ć 2H2O, NaCl and activated carbon in N2 + 10% O2 atmosphere, the de novo synthetic reactions of formation of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs) were studied under laboratory conditions in the presence of sulfur dioxide, hydrogen peroxide, and sulfuric acid. It has been found that the formation of PCDD is suppressed by sulfur dioxide more efficiently than the formation of PCDF. A similar effect has also been observed in the presence of hydrogen peroxide. The formation of PCDF is strongly suppressed in the presence of sulfuric acid. On the basis of the experimental results and thermodynamic calculations, the following mechanisms are proposed and discussed: oxidative destruction of PCDD and PCDF oxygen rings, conversion of cupric chloride and possibly also cupric oxide into the non-reactive sulfate, and the Deacon oxychlorination pr

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA104%2F04%2F0829" target="_blank" >GA104/04/0829: Zplyňování biomasy ve fluidním loži - zdroj obnovitelné energie</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Chemosphere

ISSN

0045-6535

e-ISSN

—

Svazek periodika

—

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

8

Strana od-do

1947-1954

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—