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提升管后部急冷可改善ＦＣＣ产品分布提高经济效益现代化ＦＣＣ工艺采用垂直提升管高反应温度、短停留时间和选择性优良的催化剂。提升管出口温度为５２７～５３８℃，有些ＦＣＣ高达５６０℃；提升管停留时间是１．５～３．０ｓ。提升管内反应一旦完成，使用提升管出口终...
Quenching the rear of the riser improves the distribution of FCC products and increases economic efficiency The modern FCC process uses vertical risers with high reaction temperatures, short residence times and excellent selectivity. Riser outlet temperature is 527 ~ 538 ℃, some FCC up to 560 ℃; riser residence time is 1.5 ~ 3.0s. As soon as the reaction inside the riser is completed, use the riser outlet to finish ...