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2. 发明授权

US06207605B1 High silica content zeolite-based catalyst 失效
标题翻译：高二氧化硅含量的沸石基催化剂
公开(公告)号：US06207605B1
公开(公告)日：2001-03-27
申请号：US08905409
申请日：1997-08-04
申请人： Masatsugu Kawase , Kouji Nomura , Yukito Nagamori , Jiro Kinoshita
发明人： Masatsugu Kawase , Kouji Nomura , Yukito Nagamori , Jiro Kinoshita
IPC分类号： B01J2904
CPC分类号： C10G11/05 , B01J29/70 , B01J2229/16 , B01J2229/36 , C10G35/095
摘要： A high silica content zeolite-based catalyst for use in a reaction which uses a feedstock containing an aromatic hydrocarbon or which gives a product containing an aromatic hydrocarbon, which catalyst satisfies the following requirements (1), (2), (3) and (4): (1) the zeolite constituting a zeolite-based catalyst has an SiO2/Al2O3 molar ratio of from 20 to 200; (2) the zeolite constituting a zeolite-based catalyst has a primary particle diameter of from 0.3 to 3 &mgr;m; (3) when a zeolite-based catalyst is converted into H type, the H type zeolite-based catalyst has a ratio of the number of surface acid sites to the total number of acid sites is from 0.03 to 0.15; and (4) a zeolite-based catalyst exhibits a pyridine-desorbed amount (B) as measured at a temperature of from 500° C. to 900° C. by a hot desorption method when converted into H type after being subjected to a steam treatment at an H2O partial pressure of 0.8 atm and a temperature of 650° C. for 5 hours, and a pyridine-desorbed amount (A) as measured at a temperature of from 500° C. to 900° C. by a hot desorption method when converted into H type without the steam treatment, which amounts satisfy the following requirements: &agr;≦1.6 α = ( 1 B 2 - 1 A 2 ) ÷ 5 × 10 5 .
摘要翻译：用于反应中的高二氧化硅含量的沸石基催化剂，其使用含有芳族烃的原料或产生含有芳族烃的产物，该催化剂满足以下要求（1），（2），（3）和（ 4）：（1）构成沸石型催化剂的沸石的SiO 2 / Al 2 O 3摩尔比为20〜200; （2）构成沸石型催化剂的沸石的初级粒径为0.3〜3μm; （3）当沸石型催化剂转化为H型时，H型沸石型催化剂的表面酸性位数与酸性位置总数之比为0.03〜0.15; 和（4）沸石型催化剂在通过热脱附法在500℃〜900℃的温度下测定的吡啶解吸量（B）后，在经受蒸汽后变为H型时在H 2 O分压为0.8atm，温度为650℃下处理5小时，并通过热解吸在500℃至900℃的温度下测定吡啶解吸量（A）方法转换为H型无蒸汽处理，其数量满足以下要求：

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