会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • Transalkylation Of Heavy Aromatic Hydrocarbon Feedstocks
    • 重芳香烃原料的烷基转移
    • US20130259775A1
    • 2013-10-03
    • US13899854
    • 2013-05-22
    • ExxonMobil Chemical Patents Inc.
    • Doron LevinApril D. RossJames H. Beech, JR.
    • B01J8/04
    • B01J8/04B01J29/064B01J29/072B01J29/076B01J29/44B01J29/46B01J29/7034B01J29/7669B01J35/0006B01J35/023B01J37/0009B01J37/20B01J2229/42C07C6/12C07C2529/42Y02P20/52C07C15/08
    • In a process for producing xylene by transalkylation of a C9+ aromatic hydrocarbon feedstock with a C6 and/or C7 aromatic hydrocarbon, the C9+ aromatic hydrocarbon feedstock, at least one C6 and/or C7 aromatic hydrocarbon and hydrogen are contacted with a first catalyst comprising (i) a first molecular sieve having a Constraint Index in the range of about 3 to about 12 and (ii) at least first and second different metals or compounds thereof of Groups 6 to 12 of the Periodic Table of the Elements. Contacting with the first catalyst is conducted under conditions effective to dealkylate aromatic hydrocarbons in the feedstock containing C2+ alkyl groups and to saturate C2+ olefins formed so as to produce a first effluent. At least a portion of the first effluent is then contacted with a second catalyst comprising a second molecular sieve having a Constraint Index less than 3 under conditions effective to transalkylate C9+ aromatic hydrocarbons with said at least one C6-C7 aromatic hydrocarbon to form a second effluent comprising xylene.
    • 在通过C 9 +芳族烃原料与C 6和/或C 7芳烃的烷基转移生产二甲苯的方法中,C 9 +芳烃原料,至少一种C 6和/或C 7芳烃和氢与第一催化剂接触,所述第一催化剂包含( i)具有在约3至约12范围内的约束指数的第一分子筛和(ii)至少元素周期表第6至12族的第一和第二不同金属或其化合物。 与第一催化剂接触在有效地使含有C 2 +烷基的原料中芳族烃脱烷基化并使形成的C 2 +烯烃饱和以产生第一流出物的条件下进行。 然后至少一部分第一流出物与包含第二分子筛的第二催化剂接触,该第二催化剂在有效使C 9+芳族烃与所述至少一种C 6 -C 7芳族烃烷基转移的条件下具有小于3的约束指数,以形成第二流出物 包括二甲苯。