The catalytic incineration of ethyl mercaptan over a MnO/Fe<sub>2</sub>O<sub>3</sub>catalyst

Chu, Hsin; Wu, Lifeng

doi:10.1080/10934529809376779

Cited by 10 publications

(5 citation statements)

References 13 publications

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“…However, Figure 12 shows that the LangmuirHinshelwood model is an even better method, compared with the results of high temperature, to describe the catalytic incineration of (CH 3 ) 2 S 2 at low temperatures. The findings of this study are consistent with the results of previous papers, 5,11,12,17 …”

Section: Resultssupporting

confidence: 95%

The Kinetics of Catalytic Incineration of Dimethyl Sulfide and Dimethyl Disulfide over an MnO/Fe₂O₃ Catalyst

Chu

Hao

Tseng

2001

Journal of the Air & Waste Management Association

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The catalytic incineration of dimethyl sulfide and dimethyl disulfide [(CH3)2S and (CH3)2S2] over an MnO/Fe2O3 catalyst was carried out in a bench-scale catalytic incinerator. Three kinetic models (i.e., the power-rate law, the Mars and Van Krevelen model, and the Langmuir-Hinshelwood model) were used to analyze the results. A differential reactor design was used for best fit of kinetic models in this study. The results show that the Langmuir-Hinshelwood model may be feasible to describe the catalytic incineration of (CH3)2S and (CH3)2S2. This suggests that the chemical adsorption of O2 molecules is important in this incineration.

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Section: Resultssupporting

confidence: 95%

The Kinetics of Catalytic Incineration of Dimethyl Sulfide and Dimethyl Disulfide over an MnO/Fe₂O₃ Catalyst

Chu

Hao

Tseng

2001

Journal of the Air & Waste Management Association

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“…At 250 °C, however, no deactivation effect is applied. This is consistent with the results of Chu and Wu 14 and Chu et al, 16 in which no poisoning effect of C 2 H 5 SH was significantly applied to the MnO/ Fe 2 O 3 catalyst and the Pt/Al 2 O 3 catalyst if the operating temperature was sufficiently high. Figure 7 shows that the Brunauer-Emmett-Teller method (BET)-specific surface areas of the deactivated Mn 2 O 3 /Fe 2 O 3 catalysts are less than the specific surface area of the fresh catalyst.…”

Section: Resultssupporting

confidence: 82%

The Catalytic Incineration of Styrene over an Mn₂O₃/Fe₂O₃ Catalyst

Tseng

Chu

2002

Journal of the Air & Waste Management Association

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In this study, styrene monomer (SM) was treated by a commercial catalyst, Mn 2 O 3 /Fe 2 O 3 , in a fixed-bed reactor. The study can be classified into two major parts. First, the effects of operating factors, such as temperature, SM concentration, space velocity, and O 2 concentration, on the performance of the catalyst were investigated. Second, two catalyst life tests were carried out to characterize the deactivation effect of SM.The results show that the catalyst results in higher conversion of SM at a higher inlet temperature and higher O 2 concentrations. The conversion of SM decreases with increasing SM concentration and space velocity. From the statistical analysis of the data, we find that temperature is the most important factor on the catalytic incineration. Oxygen concentration, SM concentration, and space velocity are significant parameters as well. This paper also provides information on the deactivation effect of SM. The catalysts were characterized by surface and pore-size analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM), and electron spectroscopy for chemical analysis (ESCA) before and after the tests. The results show that the catalytic deactivation may be caused by carbon coating, and the pore size and surface area of the catalyst are smaller after deactivation.

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“…Understanding the surface chemistry of manganese oxides has important implications in catalytic, [1][2][3][4] electrochemical, 5,6 magnetic, [7][8][9] and atmospheric aerosol [10][11][12] processes. Manganese oxide films have been employed in a number of applications, including ion exchange, 13 sensors, 14 electrodes 15,16 and catalytic materials.…”

Section: Introductionmentioning

confidence: 99%

Water dissociation on MnO(1 × 1)/Ag(100)

Arble

Tong

Giordano

et al. 2016

Phys. Chem. Chem. Phys.

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In this work we utilize experimental and simulation techniques to examine the molecular level interaction of water with a MnO(1 × 1) thin film deposited onto Ag(100). The formation of MnO(1 × 1)/Ag(100) was characterized by low energy electron diffraction and scanning tunneling microscopy. Density functional theory (DFT) shows MnO(1 × 1) is thermodynamically more stable than MnO(2 × 1) by ∼0.4 eV per MnO. Upon exposure to 2.5 Torr water vapor at room temperature, X-ray photoemission spectroscopy results show extensive surface hydroxylation attributed to reactivity at MnO(1 × 1) terrace sites. DFT calculations of a water monomer on MnO(1 × 1)/Ag(100) show the dissociated form is energetically more favorable than molecular adsorption, with a hydroxylation activation barrier 0.4 eV per HO. These results are discussed and contrasted with previous studies of MgO/Ag(100) which show a stark difference in behavior for water dissociation.

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The catalytic incineration of ethyl mercaptan over a MnO/Fe₂O₃catalyst

Cited by 10 publications

References 13 publications

The Kinetics of Catalytic Incineration of Dimethyl Sulfide and Dimethyl Disulfide over an MnO/Fe₂O₃ Catalyst

The Kinetics of Catalytic Incineration of Dimethyl Sulfide and Dimethyl Disulfide over an MnO/Fe₂O₃ Catalyst

The Catalytic Incineration of Styrene over an Mn₂O₃/Fe₂O₃ Catalyst

Water dissociation on MnO(1 × 1)/Ag(100)

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The catalytic incineration of ethyl mercaptan over a MnO/Fe2O3catalyst

Cited by 10 publications

References 13 publications

The Kinetics of Catalytic Incineration of Dimethyl Sulfide and Dimethyl Disulfide over an MnO/Fe2O3 Catalyst

The Kinetics of Catalytic Incineration of Dimethyl Sulfide and Dimethyl Disulfide over an MnO/Fe2O3 Catalyst

The Catalytic Incineration of Styrene over an Mn2O3/Fe2O3 Catalyst

Water dissociation on MnO(1 × 1)/Ag(100)

Contact Info

Product

Resources

About

The catalytic incineration of ethyl mercaptan over a MnO/Fe₂O₃catalyst

The Kinetics of Catalytic Incineration of Dimethyl Sulfide and Dimethyl Disulfide over an MnO/Fe₂O₃ Catalyst

The Kinetics of Catalytic Incineration of Dimethyl Sulfide and Dimethyl Disulfide over an MnO/Fe₂O₃ Catalyst

The Catalytic Incineration of Styrene over an Mn₂O₃/Fe₂O₃ Catalyst