| 摘要 |
Apparatus suitable for introducing catalyst particles into a moving bed of catalyst, which apparatus comprises a housing having in the upstream part thereof inlet means for introducing catalyst particles in the housing and fluidization means, and in the downstream part thereof a passage for the catalyst particles defined between directing means and the inner wall of the housing and/or between adjacent directing means facing each other, wherein the passage has a narrowing part and a narrow part in downstream direction. The invention further relates to a process for introducing catalyst particles into a moving bed of catalyst. It is preferably used for the catalytic cracking of a hydrocarbonaceous feedstock to lighter products. <IMAGE> |
