Selectivity of the dimethylether to hydrocarbons conversion on various zeolites
โ Scribed by F.X. Cormerais; G. Perot; Michael Guisnet
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 322 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0144-2449
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โฆ Synopsis
The transformation of dimethylether into light olefins was carried out, at 350ยฐC, on H-erionite-chabazite, H-mordenite, H-Y zeolite and H-ZSM5. The selectivity for the formation of light olefins and the sensitivity to coke deposit are connected to the structure of the zeolites and especially to their pore size. * H-Y zeolite (H-Y) Exchange of Na-Y from Na (1.15) Union Carbide, calcined under wet air at 550ยฐC * H-ZSM5 Synthesized, according to Na (0.01) Mobil patents H-mordenite (H-M) Zeolon 9O0H from Norton Na (0.4) Amorphous silica HA3P (25% AI203) from Na (0.01) alumina (S-A) Ketjen *These catalysts have been prepared at the Institut Franqais du P~trole
๐ SIMILAR VOLUMES
The conversion of methanol to hydrocarbons over an H-beta zeolite catalyst at 400ยฐC has been investigated. The experiments were carried out at a methanol pressure of about 150 mbar, using a WHSV of 0.8 or 7.2 h-1. With WHSV=0.8 h-1 the methanol conversion was still 30% after 16 h on stream. There wa
The conversion of methanol to hydrocarbons over HZSM-5 zeolites of different SIO2/AI203 ratio was studied at 450ยฐC. The initial zeolite activity in the different steps of the reaction (alkene formation from methanol and dimethyl ether, alkene aromatization, coke formation) was strictly proportional