Effect of Synthetic Zeolite on Some Physical Characteristics and Research Octane Number of Final Product Gasoline Sample Produced from Khartoum Refinery in Sudan

This research explored the effect of synthetic zeolite on pH, density, vapour pressure and Research Octane Number (RON) for gasoline final product, gasoline sample was taken from Khartoum refinery. The Used sample was tested according to American Society for Testing and Materials (ASTM) before and after blended with synthetic zeolite. Previously tetra ethyl lead (TEL) and tetra methyl lead (TML) have been used to improve the fuels octane number, but they have negative effects on the environment, and have been banned internationally. The (RON) of marked gasoline sample was recorded 90.7 before blended with zeolite. In order to enhance the RON of used gasoline synthetic zeolite was added to the gasoline with concentration (10% w/v). Octane number of blends was measured by Cooperative Fuels Research (CFR) engine. Some of the physical properties for final product gasoline after addition were improved into a limits assigned by ASTM and Khartoum Refinery (KR). (RON) was increased to 91.9 after adding synthetic zeolite.