Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5PW12O40 Keggin-Type Heteropolyanion
The reactivity of Co1.5PW12O40 in the direct synthesis of dimethyl carbonate (DMC) from CO2 and CH3OH was investigated. The synthesized catalyst has been characterized by means of FTIR, XRD, TG, and DTA and tested in gas phase under atmospheric pressure. The effects of the reaction temperature, time...
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| Format: | Article |
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MDPI AG
2010-03-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | http://www.mdpi.com/1422-0067/11/4/1343/ |
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| author | Ahmed Aouissi Zeid Abdullah Al-Othman Amro Al-Amro |
| author_facet | Ahmed Aouissi Zeid Abdullah Al-Othman Amro Al-Amro |
| author_sort | Ahmed Aouissi |
| collection | DOAJ |
| description | The reactivity of Co1.5PW12O40 in the direct synthesis of dimethyl carbonate (DMC) from CO2 and CH3OH was investigated. The synthesized catalyst has been characterized by means of FTIR, XRD, TG, and DTA and tested in gas phase under atmospheric pressure. The effects of the reaction temperature, time on stream, and methanol weight hourly space velocity (MWHSV) on the conversion and DMC selectivity were investigated. The highest conversion (7.6%) and highest DMC selectivity (86.5%) were obtained at the lowest temperature used (200 °C). Increasing the space velocity MWHSV increased the selectivity of DMC, but decreased the conversion. A gain of 18.4% of DMC selectivity was obtained when the MWHSV was increased from 0.65 h-1 to 3.2 h-1. |
| first_indexed | 2024-04-13T06:02:04Z |
| format | Article |
| id | doaj.art-1c71aa408ec947b4bde7cb1ec2589242 |
| institution | Directory Open Access Journal |
| issn | 1422-0067 |
| language | English |
| last_indexed | 2024-04-13T06:02:04Z |
| publishDate | 2010-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-1c71aa408ec947b4bde7cb1ec25892422022-12-22T02:59:24ZengMDPI AGInternational Journal of Molecular Sciences1422-00672010-03-011141343135110.3390/ijms11041343Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5PW12O40 Keggin-Type HeteropolyanionAhmed AouissiZeid Abdullah Al-OthmanAmro Al-AmroThe reactivity of Co1.5PW12O40 in the direct synthesis of dimethyl carbonate (DMC) from CO2 and CH3OH was investigated. The synthesized catalyst has been characterized by means of FTIR, XRD, TG, and DTA and tested in gas phase under atmospheric pressure. The effects of the reaction temperature, time on stream, and methanol weight hourly space velocity (MWHSV) on the conversion and DMC selectivity were investigated. The highest conversion (7.6%) and highest DMC selectivity (86.5%) were obtained at the lowest temperature used (200 °C). Increasing the space velocity MWHSV increased the selectivity of DMC, but decreased the conversion. A gain of 18.4% of DMC selectivity was obtained when the MWHSV was increased from 0.65 h-1 to 3.2 h-1.http://www.mdpi.com/1422-0067/11/4/1343/heteropolyanionKeggin structuremethanoldimethyl carbonatedirect synthesiscarbon dioxide |
| spellingShingle | Ahmed Aouissi Zeid Abdullah Al-Othman Amro Al-Amro Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5PW12O40 Keggin-Type Heteropolyanion International Journal of Molecular Sciences heteropolyanion Keggin structure methanol dimethyl carbonate direct synthesis carbon dioxide |
| title | Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5PW12O40 Keggin-Type Heteropolyanion |
| title_full | Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5PW12O40 Keggin-Type Heteropolyanion |
| title_fullStr | Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5PW12O40 Keggin-Type Heteropolyanion |
| title_full_unstemmed | Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5PW12O40 Keggin-Type Heteropolyanion |
| title_short | Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5PW12O40 Keggin-Type Heteropolyanion |
| title_sort | gas phase synthesis of dimethyl carbonate from methanol and carbon dioxide over co1 5pw12o40 keggin type heteropolyanion |
| topic | heteropolyanion Keggin structure methanol dimethyl carbonate direct synthesis carbon dioxide |
| url | http://www.mdpi.com/1422-0067/11/4/1343/ |
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