Experimental

Fig. 1 shows a photograph of the laboratory scale experimental facility used to examine the pyrolysis and gasification of food wastes. Steam is generated from the stoichiometric combustion of hydrogen and oxygen. Steam generated is then introduced into the superheater section to form the gasifying agent at the desired condition. The temperature of the gasifying agent heater is kept at the same temperature as that of the main reactor in which sample material was allowed to undergo gasification. Steam is then introduced into the main reaction chamber that contained the hydrocarbon sample. The syngas flowing out from the main reaction chamber is sub-divided into two paths; one passes to the sampling line while the other is passed through the exhaust system.

Fig. 1. A photograph of the experimental facility.

The bypass line has a non-return valve and a flow meter to assure the desired unidirectional flow out from the reactor. The syngas sample is then introduced to a condenser followed by a low pressure filter and a moister absorber (anhydrous calcium sulfate). This procedure assured that the sample is dry prior to its introduction into a gas analyzer. The filtered and dried syngas is then analyzed using a GC or a mass spectrometer.

[The description of the experiment is omitted]

Дата добавления: 2014-10-31