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论述ＦＣＣ急冷技术的原理，介绍国内外急冷技术的开发应用情况，对ＦＣＣ急冷技术应用的经济效益分析表明，采用急冷技术的ＦＣＣ装置可获得显著的经济效益。
The principle of FCC quenching technology is discussed. The development and application of rapid cooling technology at home and abroad are introduced. The economic benefit analysis of FCC rapid cooling technology application shows that the FCC device adopting quenching technology can obtain significant economic benefits.