The mass fraction of n - butene in mixed C 4 from catalytic cracking after etherized was approximately 40 %.
醚化后的催化裂化混合C4中含有質(zhì)量分?jǐn)?shù)約為40%的正丁烯,是生產(chǎn)丙烯的優(yōu)質(zhì)原料.
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