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Pyrolysis is a thermochemical process chemical decomposition of organic substances through the heating process without oxygen. It produced char, tar, and gas. Rotary kiln Pyrolysis is horizontal stove with biomass that being moved in certain rotary along the stove. Biomass particle movement in rotary kiln concentrated at the wall of the kiln in the passive layer. This layer will reach the surface where the layer will move to the bottom of the active layer. This research is an experimental study done with temperature variation 250 0 C, 350 O C, 450 O C,500 O C and 600 o C, the nitrogen flow rate 3 ml/min and the pyrolysis time is 180 minutes. The equipment that used is built and developed for better result of observation using rotary klin. The rotary kiln will rotate uses an electric motor with velocity 3 rpm. Then a kinetic rate enumeration process is done. The experiment result shows that the temperature is so influential to the tar volume, the higher the temperature, the more tar volume we got. The highest number is at temperature variation 500 o C with heating rate 1073 km/hour. The number of tar kinetic rate that produced from enumeration shows that the higher the temperature so the kinetic rate resulted is greater and the analysis result shows that tar volume from the enumeration approximates the actual number of tar volume.

Pengaruh Temperatur terhadap Laju Reaksi Tar Hasil Pirolisis Serbuk Kayu Mahoni pada Rotary Kiln