Adsorption Separation and Optimizing Utilization of Normal and iso-Hydrocarbons in Hydrotreated Coker Gasoline

The technology of separating normal hydrocarbons from the hydrotreated coker gasoline through the adsorption process using 5A molecular sieves was studied with the purpose of optimizing the(utilization) of hydrotreated coker gasoline.With the use of the desorption oil as the raw material,the ethylene yield increases by 11% and the aromatic potential content of the raffinate oil increases by 14% compared with the hydrotreated coker gasoline in the present plant and operation conditions.And the octane number of the raffinate oil can be increased 30 units by this method,which is more suitable to be used as the concoction component of the high octane number clean gasoline.