The catalytic dehydration of methanol (ME) to form dimethyl ether (DME) and water was carried out over an ion exchange catalyst [K. Klusacek, .Collection Czech. Chem. Commun., 49, 170(1984)]. The packed bed was initially filled with nitrogen and at t = 0 a feed of pure methanol vapor entered the reactor at 413 K, 100 kPa, and 0.2 cm3/s. The following partial pressures were recorded at the exit to the differential reactor containing 1.0 g of catalyst in 4.5 cm3 of reactor volume.
t(s) | |||||||
| 0 | 10 | 50 | 100 | 150 | 200 | 300 |
PN2(kPa) | 100 | 50 | 10 | 2 | 0 | 0 | 0 |
PME(kPa) | 0 | 2 | 15 | 23 | 25 | 26 | 26 |
PH2O(kPa) | 0 | 10 | 15 | 30 | 35 | 37 | 37 |
PDME(kPa) | 0 | 38 | 60 | 45 | 40 | 37 | 37 |
Discuss the implications of these data.
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