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Effects of Calcination Treatment of Diatomite on Dimethyl Ether Synthesis from Methanol |
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| รหัสดีโอไอ | |
| Creator | Watcharakorn Pranee |
| Title | Effects of Calcination Treatment of Diatomite on Dimethyl Ether Synthesis from Methanol |
| Contributor | Pornsawan Assawasaengrat, Arthit Neramittagapong, Sutasinee Neramittagapong |
| Publisher | TUENGR Group |
| Publication Year | 2557 |
| Journal Title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| Journal Vol. | 5 |
| Journal No. | 1 |
| Page no. | 10-Jan |
| Keyword | DME, renewable energy, methanol, acid catalyst. |
| URL Website | http://tuengr.com |
| Website title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| ISSN | 2228-9860 |
| Abstract | The synthesis of dimethyl ether via methanol dehydration over diatomite catalysts was investigated. The reactions were carried out in a fixed bed reactor. The effects of calcinations of diatomite on its catalytic performance were studied. Diatomite calcined at 500?C (DM500) gave the higher BET surface than fresh diatomite (DM) due to the loss of ignition. The rate of reaction over DM500 catalyst was lower than fresh DM due to the loss of active sites on the catalyst surface. However, the decrease of basicity of DM500 surface showed the higher selectivity to DME than fresh DM. The DM500 catalyst exhibits better DME yield than fresh DM catalyst, although it can be used as a selective catalyst for DME synthesis from methanol. |
