A.切斷歧化反應(yīng)進(jìn)料B.提高循環(huán)氫量C.切斷進(jìn)料緩沖罐補(bǔ)料D.切斷進(jìn)料加熱爐的燃料
A.反應(yīng)飛溫B.反應(yīng)壓力驟升C.反應(yīng)床層產(chǎn)生局部過(guò)熱點(diǎn)D.循環(huán)氫純度驟降