EVALUATION OF WET DRY SOLIDPHOSPHORIC ACID CATALYSTS ATDIFFERENT HYDRATION STATES FOROLIGOMERIZATION OF LIGHT OLEFINS

摘要

Solid phosphoric acid (SPA) catalyst has been used commercially for many years at Sasol Synfuels refinery as an oligomerization catalyst for converting Fischer-Tropsch (F-T) derived light olefins to transportation fuel. Catalyst hydration (water content) [1] is one of the important aspects of the SPA catalyst, as it influences the nature of the active phase. The active phase is a mixture of phosphoric acid species which is dependent on the feed water content and the operating temperature [2].