Improving the gasoline quality of liquid products from the Fisher–Tropsch process

The un-fractionated, un-hydro treated liquid fractions from the high temperature Fisher–Tropsch (HTFT) process was aromatized over HZSM-5 catalysts at different reaction temperatures and pressures to determine the impact. The flame ionisation detector–gas chromatography (FID–GC) results indicated that there were high amounts of aromatic and BTX (benzene, toluene, and xylenes) compounds contained in the gasoline fraction at a reaction temperature between 400 and 425 °C. Over a period of 6 days of TOL, the estimated Research Octane Numbers (RON) of different streams ranged between 102 and 93 and Motor Octane Numbers (MON) between 92 and 80. The RON and MON values of the streams resulting from the aromatization reaction indicated an improvement in octane and hence improved the blend ability or the component.