发明名称 |
Transalkylation Of Heavy Aromatic Hydrocarbon Feedstocks |
摘要 |
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.
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申请公布号 |
US2013259775(A1) |
申请公布日期 |
2013.10.03 |
申请号 |
US201313899854 |
申请日期 |
2013.05.22 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
LEVIN DORON;ROSS APRIL D.;BEECH, JR. JAMES H. |
分类号 |
B01J8/04 |
主分类号 |
B01J8/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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