Biodiesel is a fatty acid alkyl ester which is renewable, biodegradable and non-toxic fuel which can be derived from any vegetable oil and animal fats. Vegetable oils and animal fats in their raw form have high viscosity that makes them unsuitable as fuels for diesel engines. Transesterification is one of the well-known process by which fats and oils are converted into biodiesel. The reaction o...

Thermolysis of waste plastics in an inert atmosphere has been gazed at as a useful method, because this technique can convert waste plastics into hydrocarbons that can be used either as fuels or as other valued chemicals. In this work, waste polyethylene (PE) was chosen as the raw material for thermolysis. A well designed semi batch reactor has been used for thermolysis of waste polyethylene (P...

........................................................................................ 1 1.Introduction: .............................................................................. 1 1.1.What is Used Oil? ......................................................................... 2 1.2.Why is Used Oil: "Risky Waste"? ................................................ 2 1.3.How is Used Oil Recy...

The American oil shale industry is on the threshold of commercial industrial development. Potential occupational hazards include shalosis or oil shale pneumoconiosis, dermatoses, cancer of the skin, lung, and possibly other sites, and accidents. Air, water, and solid waste pollution problems are complicated by the aridity of the Green River oil shale formation located in Utah, Colorado, and Wyo...

Thermal degradation of waste plastics in an inert atmosphere has been regarded as a productive method, because this process can convert waste plastics into hydrocarbons that can be used either as fuels or as a source of chemicals. In this work, waste high-density polyethylene (HDPE) plastic was chosen as the material for pyrolysis. A simple pyrolysis reactor system has been used to pyrolyse was...

An active heterogeneous Al2O3 modified MgZnO (MgZnAlO) catalyst was prepared and the catalytic activity was investigated for the transesterification of different vegetable oils (refined palm oil, waste cooking palm oil, palm kernel oil and coconut oil) with methanol to produce biodiesel. The catalyst was characterized by using X-ray diffraction, Fourier transform infrared spectra, thermo gravim...

Concerning the level of negative effect on the environment oil industry takes one of the leading places among the branches of national economy. Losses of petroleum, contained in waste, according to the expert’s research, equal to approximately 3% of its yearly production. With yearly oil production of 491.4 million ton in Russia annual volume of wastes generated may reach 15 million ton. It is ...

erythromycin production is clearly enhanced by the addition of vegetable oils. however,whether this positive effect is brought about by the triglyceride or non-triglyceride fraction, isnot clear. the non-triglyceride portions of the oils accumulate in the waste during the refiningprocess leaving mainly triglycerides in the refined oil. in this research, sub-fractions of soybeanoil, including le...

Oils with high content of free fatty acid (FFA) can be treated by acid esterification where an alcohol reacts with the given oil in the presence of acid catalyst. The investigated parameters include methanol to oil ratio, temperature and amount of catalyst. The optimum conditions for acid esterification which could reduce FFA content in the feedstock to less than 1.88% (acid value 3.76 mg KOH/g...