Polyethylene from Ethanol/Manufacturing Instructions: Difference between revisions
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=Dehydration reaction protocol= | |||
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Revision as of 23:33, 17 May 2012
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Ethanol production
Ethanol can be purchased or produced on-site
Construction of fluid bed reactor
Instructions for construction of fluid bed reactor can be found on its own wikipage.
Ethanol dehydration catalyst preparation protocol
Base treated gamma aluminium oxide has been report to have 90%+ yields and 97%+ selectivity and could be a 1st generation catalyst.
Gamma aluminium oxide doped with Ti02 has been reported to have 99%+ yields and selectivity and has been shown to be superior to other metals.
"30 g g-Al2O3 powder with BET specific surface areas of 200 m2/g are diluted and mixed well with a small quantity of 0.5 mol/L Na2CO3 solution in a three-necked rounded-bottomed flask. Then, 0.19 mol/L Ti(SO4)2 aqueous solution and 0.5 mol/L Na2CO3 solution are added simultaneously to the flask, and agitate well with a magnetic stirrer. Keep the pH of the solution at 7–8, and then the material is washed to eliminate (SO4)2 via a centrifugal machine, followed by dried at 110 8C for 8 h and calcined at 500 8C for 4 h. Finally, the TiO2/g-Al2O3 catalysts with the size of 30–50 mesh are obtained after forming, crushing and sieving" Chen et al.
Protocol for preparation:
Prepare reagents