FCC CLOSED-CYCLONE SYSTEM ELIMINATES POST-RISER CRACKING

Amos A. Avidan, Frederick J. Krambeck Mobil Research & Development Corp. Paulsboro, N.J. Hartley Owen, Paul H. Schipper Mobil Research & Development Corp. Princeton, N.J. A major improvement in high-temperature, short-contact time catalytic cracking has been commercialized by Mobil Corp. The use of closed cyclones in fluid catalytic cracking (FCC) reactors has eliminated post-riser, nonselective thermal cracking.

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