On the utilization of modified red mud in dimethyl disulfide and methyl mercaptan emission abatement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F23%3A10250891" target="_blank" >RIV/61989100:27710/23:10250891 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985858:_____/23:00569338

Výsledek na webu

<a href="https://doi.org/10.3390/resources12010009" target="_blank" >https://doi.org/10.3390/resources12010009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/resources12010009" target="_blank" >10.3390/resources12010009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On the utilization of modified red mud in dimethyl disulfide and methyl mercaptan emission abatement

Popis výsledku v původním jazyce

In this paper, a novel application of industrial waste, namely red mud (RM), in the abatement of two malodorous and harmful sulfur compounds, dimethyl disulfide (DMDS) and methyl mer-captan (MM), is presented. The effects of calcination and activations with hydrochloric acid or a mixture of hydrochloric and orthophosphoric acid on the properties and performance of RM are compared using laboratory-scale experiments. The RM-based materials were characterized by XRF, XRD, FE-SEM, N2-physisorption, TGA/DTA, and FTIR analyses. RM exhibits very promis-ing catalytic properties in the abatement of both DMDS and MM. The hydrochloric acid-activated RM was the most active in both cases, which was explained by its rather high specific surface ar-ea (144 m2 gMINUS SIGN 1), higher contents of Fe2O3 and TiO2, as well as lower content of phosphorus. For both DMDS and MM, the main oxidation products were sulfur dioxide, carbon monoxide, and carbon dioxide. DMDS was observed as a reaction intermediate in MM oxidation. While the final conversions of DMDS and MM were high, the oxidation was not complete, indicated by the for-mation of carbon monoxide. Nevertheless, the modified RM appears as a very interesting alter-native to the existing DMDS and MM abatement catalysts.

Název v anglickém jazyce

On the utilization of modified red mud in dimethyl disulfide and methyl mercaptan emission abatement

Popis výsledku anglicky

In this paper, a novel application of industrial waste, namely red mud (RM), in the abatement of two malodorous and harmful sulfur compounds, dimethyl disulfide (DMDS) and methyl mer-captan (MM), is presented. The effects of calcination and activations with hydrochloric acid or a mixture of hydrochloric and orthophosphoric acid on the properties and performance of RM are compared using laboratory-scale experiments. The RM-based materials were characterized by XRF, XRD, FE-SEM, N2-physisorption, TGA/DTA, and FTIR analyses. RM exhibits very promis-ing catalytic properties in the abatement of both DMDS and MM. The hydrochloric acid-activated RM was the most active in both cases, which was explained by its rather high specific surface ar-ea (144 m2 gMINUS SIGN 1), higher contents of Fe2O3 and TiO2, as well as lower content of phosphorus. For both DMDS and MM, the main oxidation products were sulfur dioxide, carbon monoxide, and carbon dioxide. DMDS was observed as a reaction intermediate in MM oxidation. While the final conversions of DMDS and MM were high, the oxidation was not complete, indicated by the for-mation of carbon monoxide. Nevertheless, the modified RM appears as a very interesting alter-native to the existing DMDS and MM abatement catalysts.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20700 - Environmental engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Resources

ISSN

2079-9276

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

22

Strana od-do

9

Kód UT WoS článku

000916056300001

EID výsledku v databázi Scopus

2-s2.0-85146756613