Oxidation of dichloromethane and perchloroethylene as single compounds and in mixtures

Pitkäaho, Satu; Ojala, Satu; Maunula, Teuvo; Savimäki, A.; Kinnunen, Toni; Keiski, Riitta L.

doi:10.1016/j.apcatb.2010.12.011

Cited by 46 publications

(19 citation statements)

References 31 publications

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“…In our previous study the effect of e.g. water and ethanol in DCM oxidation in laboratory experiments was examined [14] and besides notably enhancing the HCl yield, water also improved the oxidation of DCM. Instead, ethanol was seen to inhibit the DCM oxidation, especially at higher temperatures this was obvious.…”

Section: Resultsmentioning

confidence: 98%

“…The incinerator utilizes the catalysts that were developed to the oxidation of CVOCs, to be exact, to dichloromethane (DCM) and perchloroethylene (PCE) oxidation based on our previous study [14]. In this article results from laboratory-scale catalyst activity experiments are compared with this real life industrial DCM and PCE oxidation study in order to understand differences between laboratory scale experiments and real industrial scale results.…”

Section: Introductionmentioning

confidence: 98%

“…In designing a catalyst and a reactor for an end-of-pipe environmental control system high activity and selectivity as well as good resistance towards deactivation at low reaction temperatures are required. Based on the literature [10][11][12][13] and on our previous study [14] it can be concluded that noble metal catalysts are suitable for selective total oxidation of CVOCs to the desired end-products: CO 2 , H 2 O and HCl.…”

Section: Introductionmentioning

confidence: 98%

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Catalytic Oxidation of Dichloromethane and Perchloroethylene: Laboratory and Industrial Scale Studies

Pitkäaho

Ojala

Kinnunen³

et al. 2011

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Development of a reliable laboratory scale test for the design of industrial catalysts is crucial. In this article, different laboratory-scale tests were compared with an industrial scale CVOCs treatment. With dichloromethane (DCM) the laboratory scale test results corresponded well to the industrial scale oxidation results. However, the perchloroethylene (PCE) conversions measured in industry were always higher than what was achieved in the laboratory scale indicating that the industrial scale catalytic incinerator operating in transient conditions is highly beneficial in PCE oxidation. It was clearly shown that in order to design high-quality laboratory scale experiments, information on complete composition and total concentration of the emission is needed but also different types of catalytic tests need to be used depending on the industrial reactor. In addition, the catalysts' performance in an industrial VOC abatement unit was examined as the oxidation efficiencies of DCM, PCE and other hydrocarbons (OHC) were compared after 3, 10 and 23 months of operation. After 23 months and 13,065 operating hours, no significant decrease in the activity of the catalysts was observed showing that the used noble metal catalysts are highly resistant towards these demanding conditions.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

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Catalytic Oxidation of Dichloromethane and Perchloroethylene: Laboratory and Industrial Scale Studies

Pitkäaho

Ojala

Kinnunen³

et al. 2011

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“…Additives tested during these experiments showed only minor impacts on the PCE conversion. Both DCM and PCE inhibited DMF oxidation but in EGEE destruction, the presence of CVOC did not have any influence [119]. In earlier studies [110,111,117] the catalytic oxidation of CVOCs in VOC mixtures has shown to inhibit VOC oxidation indicating that the most important role in the reaction pathway may be a competition between the reacting compounds in the mixture to the same active sites.…”

Section: Cvocsmentioning

confidence: 96%

Catalysis in VOC Abatement

et al. 2011

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Volatile organic compounds (VOCs) are harmful to environment and human health. Catalytic oxidation has been used in VOC abatement for over 60 years, and it has proven to be an effective technology. A large variety of VOCs set high demands for the treatment, and therefore catalytic oxidation needs still to be developed further. This paper reviews current aspects and future research needs related to VOCs and catalytic VOC treatment concentrating on solvent-based, chlorinated and sulphur-containing VOCs.

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“…It means that the composition of the emissions may change in connection of different products made. Pharmaceutical industry uses substituted organic compounds, e.g., chlorinated compounds, for example as solvents [336]. In addition to chlorinated compounds, the emissions typically contain oxygenated organic compounds, such as, acetone and ethyl acetate.…”

Section: Considerations On Catalyst Durability In Utilization Of Orgamentioning

confidence: 99%

Utilization of Volatile Organic Compounds as an Alternative for Destructive Abatement

et al. 2015

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Abstract:The treatment of volatile organic compounds (VOC) emissions is a necessity of today. The catalytic treatment has already proven to be environmentally and economically sound technology for the total oxidation of the VOCs. However, in certain cases, it may also become economical to utilize these emissions in some profitable way. Currently, the most common way to utilize the VOC emissions is their use in energy production. However, interesting possibilities are arising from the usage of VOCs in hydrogen and syngas production. Production of chemicals from VOC emissions is still mainly at the research stage. However, few commercial examples exist. This review will summarize the commercially existing VOC utilization possibilities, present the utilization applications that are in the research stage and introduce some novel ideas related to the catalytic utilization possibilities of the VOC emissions. In general, there exist a vast number of possibilities for VOC OPEN ACCESSCatalysts 2015, 5 1093 utilization via different catalytic processes, which creates also a good research potential for the future.

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Oxidation of dichloromethane and perchloroethylene as single compounds and in mixtures

Cited by 46 publications

References 31 publications

Catalytic Oxidation of Dichloromethane and Perchloroethylene: Laboratory and Industrial Scale Studies

Catalytic Oxidation of Dichloromethane and Perchloroethylene: Laboratory and Industrial Scale Studies

Catalysis in VOC Abatement

Utilization of Volatile Organic Compounds as an Alternative for Destructive Abatement

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