Reactive Adsorption Desulfurization of FCC Gasoline over NiO/ZnO-Al2O3-SiO2 in a Fixed-fluidized Bed Reactor

Abstract

The oxides adsorbent of NiO/ZnO-Al2O3-SiO2 was prepared by a co-precipitation method. NiO/ZnO-SiO2-Al2O3 is an effective adsorbent for reactive adsorption desulfurization of fluid catalytic cracking gasoline. The reaction conditions, such as reaction temperature, total pressure, weight hourly space velocity, and volume ratio of hydrogen to oil for desulfurization over NiO/ZnO-SiO2-Al2O3 in a fixed-fluidized bed reactor were investigated. With the optimum conditions, the sulfur content of FCC gasoline can be decreased from 180 to 11.6 mg·L−1, and the loss of olefin content of gasoline product is 1.05%, the research octane number loss of gasoline product is only 1.3 unit.