Abstract

The purpose of this research was to study pyrolysis of glycerol to produce hydrogen using microwave. The useof microwave aimed to produce high temperatures, because pyrolysis require high temperature.The effect of kindof catalyst and microwave power were studied. The catalyst was activated carbon and Ni/HZSM-5.The catalystof activated carbon was ready to use, whereas Ni/HZSM-5 catalyst was obtained by ion exchange fromNa-ZSM-5 with NH4Cl and then HZSM-5 was impregnated with metal solution of Ni (NO3)2.6 H2O.Experiments were conducted by mixing catalyst in the reactor together with glycerol solution of 10% (weightpercent) as much as 100 ml. Reactor was made from pyrex and mounted on microwave equipped with athermocouple. And then, reactor was heated on power of 400-700 Watt during thirty minutes. The reactionproduced gases and liquid to be analyzed by chromatography gas.The conclusion stated that microwave couldpyrolysis glycerol into hydrogen. By product of this reaction were methanol, allyl alcohol, acrolein andunidentified products. The difference of catalyst produced different product as well. The pyrolysis of glycerolusing activated carbon produced conversion of 60 %, while using catalysts Ni/HZSM-5 obtained conversion of87 %. The reaction produced hydrogen gases was relatively small for both of catalysts that is minimum of 0,59%and maximum of 0,88%.

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