The NiMo/Indonesian natural zeolite (NiMo/ZA) and CoMo/ZA catalysts are produced through the impregnation methods. These catalysts were characterized by using X-Ray Fluorescence (XRF), Fourier Transform Infra-Red (FTIR), X-Ray diffraction (XRD), and Scanning Electron Microscope (SEM). The XRF data show that the CoMo/ZA catalyst has a large amount of metal content more than NiMo/ZA. The FTIR spectra of catalyst show a shift of asymmetric stretching of TO4 group to a larger wavenumbers than the FTIR spectra of ZA. Meanwhile, the metal phase in the CoMo/ZA catalyst is CoO and MoO3, and the metal phase in the NiMo/ZA catalyst is NiO and MoO3.
Conversion of wood waste into bio-oil with low temperature pyrolysis method has been successfully carried out using tubular transport reactors. Pyrolysis carried out at temperatures of 250-300°C without using N2 gas. Bio-oil purified by a fractionation distillation method to remove water and light fraction compounds. The materials obtained from different types of wood waste, namely: Randu wood (Ceiba pentandra), Sengon wood (Paraserianthes falcataria), Coconut wood (Cocos nucifera), Bangkirei wood (Shorea laevis Ridl), Kruing wood (Dipterocarpus) and Meranti wood (Shorea leprosula). Bio-oil products are analyzed for their properties and characteristics, namely the nature of density, acidity, high heat value (HHV), and elements contained in bio-oil such as carbon, nitrogen and sulfur content based on SNI procedures, while bio-oil chemical compositions are investigated using Gas Chromatography Mass Spectroscopy (GC-MS). The maximum yield of bio-oil products occurs at 300°C by 40%. Bio-oil purification by fractional distillation method can produce purity of 16-31% wt. The characterization results of the chemical content of bio-oil showed that bio-oil of methyl formate, 2,6-dimetoxy phenol, 1,2,3 trimethoxy benzene, levoglucosan, 2,4-hexadienedioic acid and 1,2- benzenediol.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.