Gas phase catalytic oxidation of VOCS using hydrothermally synthesized nest-like K-OMS 2 catalyst

Toluene and benzene are hazardous air pollutants commonly found in the atmosphere at relatively high concentrations. Due to this, a need to remove these pollutants became a necessity. In this study, octahedral molecular sieve type manganese oxide (K-OMS 2) prepared by hydrothermal method was utilize...

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Main Authors: M.D. de Luna, J.M. Millanar, A. Yodsa-Nga, K. Wantala
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2017
Online Access:http://journalarticle.ukm.my/10680/
http://journalarticle.ukm.my/10680/
http://journalarticle.ukm.my/10680/1/12%20M.D.%20De%20Luna.pdf
id ukm-10680
recordtype eprints
spelling ukm-106802017-09-20T09:17:55Z http://journalarticle.ukm.my/10680/ Gas phase catalytic oxidation of VOCS using hydrothermally synthesized nest-like K-OMS 2 catalyst M.D. de Luna, J.M. Millanar, A. Yodsa-Nga, K. Wantala, Toluene and benzene are hazardous air pollutants commonly found in the atmosphere at relatively high concentrations. Due to this, a need to remove these pollutants became a necessity. In this study, octahedral molecular sieve type manganese oxide (K-OMS 2) prepared by hydrothermal method was utilized to decompose toluene and benzene. X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmet-Teller (BET), X-ray absorption near edge structure (XANES) analysis were used to investigate the crystallinity, morphology, surface area and oxidation state of K-OMS 2, respectively. It was confirmed that K-OMS 2 was successfully produced from hydrothermal method. Central composite design (CCD) was used to investigate the main and interaction effects of gas hourly space velocity (GHSV) and reaction temperature on the thermal catalytic oxidation of benzene and toluene. Both factors were found to have significant main and interaction effects on toluene oxidation. However, only the main effects of the factors were significant for benzene. This result was due to the difference in the stability of the structures of the two VOCs. The K-OMS 2 obtained has excellent efficiency on toluene and benzene removal. Toluene was completely decomposed at a temperature as low as 250°C while benzene decomposition reached around 98% at 292.4°C. Universiti Kebangsaan Malaysia 2017-02 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/10680/1/12%20M.D.%20De%20Luna.pdf M.D. de Luna, and J.M. Millanar, and A. Yodsa-Nga, and K. Wantala, (2017) Gas phase catalytic oxidation of VOCS using hydrothermally synthesized nest-like K-OMS 2 catalyst. Sains Malaysiana, 46 (2). pp. 275-283. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol46num2_2017/contentsVol46num2_2017.html
repository_type Digital Repository
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institution Universiti Kebangasaan Malaysia
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language English
description Toluene and benzene are hazardous air pollutants commonly found in the atmosphere at relatively high concentrations. Due to this, a need to remove these pollutants became a necessity. In this study, octahedral molecular sieve type manganese oxide (K-OMS 2) prepared by hydrothermal method was utilized to decompose toluene and benzene. X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmet-Teller (BET), X-ray absorption near edge structure (XANES) analysis were used to investigate the crystallinity, morphology, surface area and oxidation state of K-OMS 2, respectively. It was confirmed that K-OMS 2 was successfully produced from hydrothermal method. Central composite design (CCD) was used to investigate the main and interaction effects of gas hourly space velocity (GHSV) and reaction temperature on the thermal catalytic oxidation of benzene and toluene. Both factors were found to have significant main and interaction effects on toluene oxidation. However, only the main effects of the factors were significant for benzene. This result was due to the difference in the stability of the structures of the two VOCs. The K-OMS 2 obtained has excellent efficiency on toluene and benzene removal. Toluene was completely decomposed at a temperature as low as 250°C while benzene decomposition reached around 98% at 292.4°C.
format Article
author M.D. de Luna,
J.M. Millanar,
A. Yodsa-Nga,
K. Wantala,
spellingShingle M.D. de Luna,
J.M. Millanar,
A. Yodsa-Nga,
K. Wantala,
Gas phase catalytic oxidation of VOCS using hydrothermally synthesized nest-like K-OMS 2 catalyst
author_facet M.D. de Luna,
J.M. Millanar,
A. Yodsa-Nga,
K. Wantala,
author_sort M.D. de Luna,
title Gas phase catalytic oxidation of VOCS using hydrothermally synthesized nest-like K-OMS 2 catalyst
title_short Gas phase catalytic oxidation of VOCS using hydrothermally synthesized nest-like K-OMS 2 catalyst
title_full Gas phase catalytic oxidation of VOCS using hydrothermally synthesized nest-like K-OMS 2 catalyst
title_fullStr Gas phase catalytic oxidation of VOCS using hydrothermally synthesized nest-like K-OMS 2 catalyst
title_full_unstemmed Gas phase catalytic oxidation of VOCS using hydrothermally synthesized nest-like K-OMS 2 catalyst
title_sort gas phase catalytic oxidation of vocs using hydrothermally synthesized nest-like k-oms 2 catalyst
publisher Universiti Kebangsaan Malaysia
publishDate 2017
url http://journalarticle.ukm.my/10680/
http://journalarticle.ukm.my/10680/
http://journalarticle.ukm.my/10680/1/12%20M.D.%20De%20Luna.pdf
first_indexed 2023-09-18T19:58:11Z
last_indexed 2023-09-18T19:58:11Z
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