MOLECULAR SIEVE DESULFURIZERS AND METHODS OF MAKING THEM

摘要

The present invention relates to a molecular sieve desulfurizer for removing organic sulfur compounds contained in liquid petroleum gas or light oil and methods for preparing the same. The main component of the desulfurizer is a X- or Y-molecular sieve exchanged with lanthanum, cerium or mixed light rare earth elements in its high valence state, the percentage of cations exchanged by the high valence metal cation are 70 %-95 %. Particularly, the desulfurizer can be used for directly removing neutral organic sulfur compounds contained in liquid petroleum gas or light oil by physical adsorption process, and has large adsorbing capacity, high percentage of removal, and the features of long regeneration period, easy-to-regenerate, long life period, and repeatable reuse.