SD-BX催化剂是提高液化气中丙烯浓度的催化裂化助剂。目前市场对丙烯的需求不断增长。炼厂无需对装置进行改造，采用助剂，即可达到增产丙烯的目的。助剂的使用具有较大的灵活性，炼厂可根据市场的需求改变助剂的加入量。助剂有高低活性两种产品可供炼厂选择。
SD-BX is a FCC promoter,which is applied to increase the concentration of propylene in liquefied petroleum gas. At present, the demand of propylene is increasing gradually. Through the applying of this promoter, the refineries can increase the yield of propylene without revamping the facilities. The applying can change the make up quantity of the promoter based on the requirement of propylene. There are two options for the refineries, one is high activity promoter, and the other is low activity promoter.
