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US08435401B2 Fluidized catalytic cracker with active stripper and methods using same 失效
带活性汽提器的流化催化裂化器及其使用方法

Fluidized catalytic cracker with active stripper and methods using same
Abstract:
A staged fluidized catalytic cracker and method for cracking a hydrocarbonaceous material includes a plurality of staged reactors that have catalyst particles flowing in series from one reactor to the next and hydrocarbon feed that is delivered in parallel to the reactors. Between each reactor the partially spent catalyst is actively stripped to partially reactivate the catalyst. Once the catalyst is fully spent in the final reactor the catalyst can be oxidatively regenerated.
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