Oxidative desulfurization of petroleum products using oxidized cobalt oxide on the surface-modified carbon nanotubes
عنوان دوره: 1
1Hakim Sabzevari University, Sabzevar, Iran
2Chemical Engineering Department, School of Petroleum and Petrochemical Engineering, Hakim Sabzevari University, Sabzevar, Iran
Due to the dangerous effects of sulfur in hydrocarbon compounds and its impact on environmental health, a new formulation based on surface-modified carbon nanotubes and a cobalt oxide has been prepared. Oxidative desulfurization was the main reaction of this process that was utilized to reduce this impurity. After the preparation of this nanocatalyst, the TEM images and Thermogravimetric analysis were studied to evaluate the structure of this complex. The results show that the combination of metal oxide and functionalized nanoparticles presents better efficiency in sulfur removal. In addition, the reaction rate raised by increasing the number of functional groups on the surface of nanotubes. The influence of temperature, reaction time and the amount of oxidizing agent in the sample was investigated. The results show that high temperature and high amount of oxidizing agents increase the oxidation efficiency. This phenomena also enhance the efficiency of desulfurization. This finding can be more effective in sulfur removal of hydrocarbons in oil, gas, and petrochemical industries.