| 发明名称 |
PROCESS FOR PRODUCING CUMENE |
| 摘要 |
In a process for producing cumene, benzene and a C3 alkylating agent comprising isopropanol are supplied to an alkylation zone comprising a molecular sieve alkylation catalyst under alkylation conditions such that the isopropanol reacts with the benzene to produce a reaction product comprising cumene. Subsequently, the supply of benzene and C3 alkylating agent to the alkylation zone is ceased and a gaseous stripping agent is supplied to the molecular sieve alkylation catalyst under conditions effective to remove nitrogenous impurities deposited on the catalyst during the preceding alkylation reaction. The supply of benzene and C3 alkylating agent to the alkylation zone is then reinitiated. |
| 申请公布号 |
US2015182956(A1) |
申请公布日期 |
2015.07.02 |
| 申请号 |
US201314415960 |
申请日期 |
2013.07.23 |
| 申请人 |
BADGER LICENSING LLC |
发明人 |
Birkhoff Ronald;Hwang Shyh-Yuan H. |
| 分类号 |
B01J29/90;C07C37/08;C07C407/00;B01J38/10;C07C29/145;B01J29/70;B01J38/04;C07C2/86;C07C45/00 |
主分类号 |
B01J29/90 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process for producing cumene comprising:
(a) supplying benzene and a C3 alkylating agent comprising isopropanol to an alkylation zone comprising a molecular sieve alkylation catalyst under alkylation conditions such that the isopropanol reacts with the benzene to produce a reaction product comprising cumene; (b) ceasing the supply of benzene and C3 alkylating agent to the alkylation zone; (c) supplying a gaseous stripping agent to the molecular sieve alkylation catalyst under conditions to remove nitrogenous impurities deposited on the catalyst during (a); and (d) reinitiating the supply of benzene and C3 alkylating agent to the alkylation zone. |
| 地址 |
Boston MA US |
