水蒸气处理β-沸石载体对降烯烃催化剂性能的影响  

EFFECT OF THE CARRIER OF β-ZEOLITE ON THE REDUCTION OLEFIN CATALYSTS PERFORMANCE BY WATER-STEAMING TREATMENT

作　　者：李丽华[1] 于廷云[2] 张金生[2] 王吉林[2] 穆文俊[2] 翟玉春[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110006 [2]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《石油化工高等学校学报》2004年第4期26-29,共4页Journal of Petrochemical Universities

基　　金：沈阳蜡化有限公司资助项目 ( 0 2 0 1 1 6 1 )

摘　　要：应用BET、XRD和吡啶吸附红外光谱研究了高温水蒸气处理对A、C/ β-沸石催化剂性能的影响 ,并利用荧光色谱法对催化剂的催化活性进行了评价。结果表明 ,水蒸气处理 β -沸石 ,使载体中的不稳定骨架铝脱出 ,孔径由 2 .0 5× 1 0 -9/m增加到 2 .4 3× 1 0 -9/m ,酸性由 0 .4 90mmol·g-1 降低到 0 .32 9mmol·g-1 ,而 β-沸石的基本结构并未发生改变 ,催化剂的活性大大增强 ,烯烃体积分数由 4 7.39%下降到 30 .6 2 % 。Effect of water steaming treatment on A,C/β-zeolite catalysts was investigated by using BET, XRD, IR spectrum of pyridine absorbed. The activity of catalysts was evaluated by fluorescent indicator adsorption method. The result shows that of β-zeolite treated with water steaming makes unstable framework aluminium taken out of carrier. The pore diameter is increased from 2.05×10^(-9) m to 2.43×10^(-9) m. Acid properties is decreased from 0.490 mmol·g^(-1) to 0.329 mmol·g^(-1). Structure of β-zeolite remains unchanged. It is concluded that the activity of catalysts increases greatly, the volume fraction of olefin of FCC gasoline decreases from 47.39% to 30.62%. These meet the requirement of the new standard for producing FCC gasoline.

关 键 词：水蒸气处理 Β-沸石 降烯烃催化剂 比表面 孔结构 

分 类 号：TE624.91[石油与天然气工程—油气加工工程]