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US6099720A Method and device for descending catalytic cracking by injecting feedstock at an adequate angle on a conditioned catalyst 有权
通过在调节催化剂上以足够角度注入原料来降低催化裂化的方法和装置

Method and device for descending catalytic cracking by injecting
feedstock at an adequate angle on a conditioned catalyst
摘要:
A process is described for catalytic cracking of a petroleum feed in which a catalyst from a regeneration zone 4 is caused to flow in a dense fluidized bed conditioning zone 2 upstream of an injection zone 10, the fluidization rate being 0.1 to 30 cm/s. The throughput of catalyst into injection zone 10 is regulated by a constriction means 11. The hydrocarbon feed 12 is injected below the constriction means and flows counter-current to the direction of flow of the shaped catalyst flow. The hydrocarbon feed 12 is injected at a set injection angle depending on the movement of the feed and the catalyst.
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