新型流化催化裂化汽油脱硫降烯烃催化剂的研究  

Study on a new catalyst for removing sulfur and reducing olefins in FCC gasoline

作　　者：柯明[1] 朱坤磊[1] 刘成翠[1] 蒋庆哲[1] 宋昭铮[1] 潘惠芳[1] 

机构地区：[1]中国石油大学(北京)重质油国家重点实验室,北京102249

出　　处：《现代化工》2005年第11期33-37,共5页Modern Chemical Industry

摘　　要：以L沸石作为活性组分负载Co-Mo氧化物制备了改性L沸石催化剂,并用X射线衍射、BET测试和红外光谱等方法对催化剂进行表征.以全馏分流化催化裂化(FCC)汽油为原料,临氢条件下,在固定床连续微反应装置上对催化剂脱除硫和烯烃的性能进行了评价,考察了n(Co):n(Mo)、金属含量、温度、压力、体积空速和氢油比对催化剂反应性能的影响.结果表明,当催化剂中n(Co):n(Mo)=1:2,w(CoO)=2.5%时,在温度320℃、压力1.5 MPa、体积空速4.0 h-1、V(H2):V(FCC汽油)=600:1的条件下,FCC汽油质量脱硫率达92%左右,烯烃体积饱和率42%左右,汽油抗爆指数损失小于1.0个单位,液体质量收率97%～98%,且催化剂的稳定性好.A modified zeolite-L catalyst was prepared by impregnating Co-Mo oxides as active componems onto it, and characterized by XRD, IR and BET. In the presence of hydrogen, the performance of Co-Mo/L catalyst for removing sulfur and olefins was tested in a fixed-bed microreactor with feeding full range of FCC gasoline. The influences of n （Co）： n （Mo）, metal content, reaction temperature, reaction pressure, LHSV and V（ H2） ： V（ FCC gasoline） on the removal of sulfur and reduction of olefins in gasoline were studied. Under such optimal conditions as follows ： n （Co） ： n （Mo） = 1 ： 2, w （CoO） = 2.5 %, T = 320℃ ,p（H2） = 1.5 MPa, V（H2） ： V（FCC gasoline） = 600：1 and LHSV = 4.0 h^-1,tbe FCC gasoline desulfurization rate can be about 92 %, olefin saturation rate, about 42 % , gasoline octane number loss, less than 1.0, gasoline yield, 97 % - 98 %, and the stability of Co-Mo/L catalyst is also good.

关 键 词：流化催化裂化汽油 加氢精制 催化剂 脱硫降烯烃 

分 类 号：TE624.4[石油与天然气工程—油气加工工程]