Catalytic Conversion for Hydrogen Sulfide
Abstract In this study, a series of transition metal mono-substituted heteropoly compounds H7PMo11MO39 (M = Co2+, Mn2+, Ni2+ and Zn2+) (HPMo11M) and single-absent heteropoly compounds H3PMo11O39 (HPMo11) were prepared for highly effective removal of hydrogen sulfide (H2S) from gas stream. The hetero...
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| Format: | Article |
| Language: | English |
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Springer
2021-07-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.210065 |
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| _version_ | 1823862836861861888 |
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| author | Xiaoyu Zhou Xiaoning Pei Rui Wang Tiansheng Zhao |
| author_facet | Xiaoyu Zhou Xiaoning Pei Rui Wang Tiansheng Zhao |
| author_sort | Xiaoyu Zhou |
| collection | DOAJ |
| description | Abstract In this study, a series of transition metal mono-substituted heteropoly compounds H7PMo11MO39 (M = Co2+, Mn2+, Ni2+ and Zn2+) (HPMo11M) and single-absent heteropoly compounds H3PMo11O39 (HPMo11) were prepared for highly effective removal of hydrogen sulfide (H2S) from gas stream. The heteropoly compounds were characterized Fourier transform infrared spectroscopy (FT-IR), elemental analysis and scanning electron microscopy (SEM). The results confirmed that the transition metal ions successfully replaced the Mo atom. H7PMo11CoO39 showed that the outstanding desulfurization capacity and the H2S removal efficiency can reach more than 90% for 3 h. Besides, after regeneration, the desulfurization capacity of H7PMo11CoO39 towards H2S only a drop of 5.11% of the initial desulfurization capacity. Optimization experiments demonstrated that H7PMo11CoO39 had the ideal desulfurization performance under the condition of low H2S concentration or high dosage of H7PMo11CoO39. An appropriate temperature of 25°C is necessary for high removal efficiency. The optimum pH value for desulfurization is 5. The kinetic data can be well described by pseudo-first-order kinetic model. The desulfurization products were proved to be S and SO4 2− based on X-ray photoelectron spectroscopy (XPS) characterization results. |
| format | Article |
| id | doaj-art-b75989574c5643f29b85cbb7509e0dd6 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2021-07-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-b75989574c5643f29b85cbb7509e0dd62025-02-09T12:21:34ZengSpringerAerosol and Air Quality Research1680-85842071-14092021-07-0121911410.4209/aaqr.210065Catalytic Conversion for Hydrogen SulfideXiaoyu Zhou0Xiaoning Pei1Rui Wang2Tiansheng Zhao3School of Environmental Science and Engineering, Shandong UniversitySchool of Environmental Science and Engineering, Shandong UniversitySchool of Environmental Science and Engineering, Shandong UniversityState Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia UniversityAbstract In this study, a series of transition metal mono-substituted heteropoly compounds H7PMo11MO39 (M = Co2+, Mn2+, Ni2+ and Zn2+) (HPMo11M) and single-absent heteropoly compounds H3PMo11O39 (HPMo11) were prepared for highly effective removal of hydrogen sulfide (H2S) from gas stream. The heteropoly compounds were characterized Fourier transform infrared spectroscopy (FT-IR), elemental analysis and scanning electron microscopy (SEM). The results confirmed that the transition metal ions successfully replaced the Mo atom. H7PMo11CoO39 showed that the outstanding desulfurization capacity and the H2S removal efficiency can reach more than 90% for 3 h. Besides, after regeneration, the desulfurization capacity of H7PMo11CoO39 towards H2S only a drop of 5.11% of the initial desulfurization capacity. Optimization experiments demonstrated that H7PMo11CoO39 had the ideal desulfurization performance under the condition of low H2S concentration or high dosage of H7PMo11CoO39. An appropriate temperature of 25°C is necessary for high removal efficiency. The optimum pH value for desulfurization is 5. The kinetic data can be well described by pseudo-first-order kinetic model. The desulfurization products were proved to be S and SO4 2− based on X-ray photoelectron spectroscopy (XPS) characterization results.https://doi.org/10.4209/aaqr.210065Transition metal ionsHeteropoly compoundsH2SDesulfurization |
| spellingShingle | Xiaoyu Zhou Xiaoning Pei Rui Wang Tiansheng Zhao Catalytic Conversion for Hydrogen Sulfide Aerosol and Air Quality Research Transition metal ions Heteropoly compounds H2S Desulfurization |
| title | Catalytic Conversion for Hydrogen Sulfide |
| title_full | Catalytic Conversion for Hydrogen Sulfide |
| title_fullStr | Catalytic Conversion for Hydrogen Sulfide |
| title_full_unstemmed | Catalytic Conversion for Hydrogen Sulfide |
| title_short | Catalytic Conversion for Hydrogen Sulfide |
| title_sort | catalytic conversion for hydrogen sulfide |
| topic | Transition metal ions Heteropoly compounds H2S Desulfurization |
| url | https://doi.org/10.4209/aaqr.210065 |
| work_keys_str_mv | AT xiaoyuzhou catalyticconversionforhydrogensulfide AT xiaoningpei catalyticconversionforhydrogensulfide AT ruiwang catalyticconversionforhydrogensulfide AT tianshengzhao catalyticconversionforhydrogensulfide |