Infrared Spectra Patterns of Coconut Shell Charcoal as Result of Pyrolysis and Acid Activation Origin of Sulawesi, Indonesia

Coconut is one of the industrial plants that plays an important role in Indonesian economy. The part coconut has a high economic value shell. This study aims to see maximum temperature shell pyrolysis reactor and examine spectrum pattern charcoal purified using activation hydrochloric acid (HCl), acetic (CH 3 COOH), nitric (HNO ) hot water (H 2 O). process steps are carried out at ± 310 °C for hours 4 types solvents with different acidity levels, soaking 12 hours. Infrared spectra testing Fourier Transform (FTIR). results produce charcoal, liquid smoke, tar condensed gases. spectral each was analyzed analysis showed activated low level impurity absorption, namely HCl activator concentration M.