发明名称 |
A PROCESS FOR MAINTAINING A CATALYST PARTICLE SIZE DISTRIBUTION IN A REACTION SYSTEM BY SELECTIVELY REMOVING UNDESIRABLY SIZED CATALYST PARTICLES FROM A REACTION SYSTEM |
摘要 |
The present invention provides various processes for selectively removing undesirably sized catalyst particles from a reaction system. In one embodiment, a plurality of catalyst particles, having a first median particle diameter, is withdrawn from the reaction system and is directed to a separation unit such as a counter flow cyclone separator. In the separation unit, the particles are separated into a small catalyst stream and a large catalyst stream, the small catalyst stream having a second median particle diameter less than the first median particle diameter, and the large catalyst stream having a third median particle diameter greater than the first median particle diameter. At least a portion of the small or large catalyst stream is then directed back to the reaction system in order to maintain a desirable particle size distribution therein. |
申请公布号 |
EA010716(B1) |
申请公布日期 |
2008.10.30 |
申请号 |
EA20060000488 |
申请日期 |
2004.08.31 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
VAUGHN STEVEN, N.;CLEM KENNETH, R.;KUECHLER KEITH, H.;LATTNER JAMES, R. |
分类号 |
C10G3/00;B01J8/00;C07C1/20 |
主分类号 |
C10G3/00 |
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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