FINES CO-FEED FOR MAINTAINING EFFICIENT REACTOR HYDRODYNAMICS
摘要
This invention provides processes for maintaining a desired particle size distribution in an oxygenate to olefin reaction system. In one embodiment, the invention comprises replacing lost catalyst fines with less active co-catalyst particles. By adding less active co-catalyst particles to the reaction system, desirable fluidization characteristics and hydrodynamics can be maintained without affecting the overall (or primary catalyst) performance and product selectivities. The invention is also directed to a population of catalyst particles having a desirable particle size distribution well-suited for realizing ideal fluidization and hydrodynamic characteristics.
申请公布号
EA009187(B1)
申请公布日期
2007.12.28
申请号
EA20060000354
申请日期
2004.06.17
申请人
EXXONMOBIL CHEMICAL PATENTS INC.
发明人
MARTENS LUC, R. M.;LATTNER JAMES, R.;PATEL RUTTON, D.;SKOUBY DAVID, C.;VAUGHN STEPHEN, N.;CHANG YUN-FENG;GOELLNER JESSE, F.;JANSSEN MARCEL, J. G.;SENIOR RICHARD, C.