Studied is the character of C4 fraction from FCC. Investigated is the status of the catalytic pyrolysis of C4 fraction from FCC at home and abroad in detail.
研究了催化裂化C4烃类的典型组成和特点，详细调研了催化裂化C4烃类催化裂解的国内外现状、C4烃类的催化剂及其机理研究的最新进展。
The mass fraction of n-butene in mixed C4 from catalytic cracking after etherized was approximately 40%.
混合c 4中含有质量分数约为40%的正丁烯，是生产丙烯的优质原料。
A process in which the selective hydrogenation of butadiene in FCC C4 + fraction and the distillation separation of the fraction take place concurrently to produce butylene.
催化裂化C4 +馏分中的丁二烯选择性加氢和该馏分蒸馏分离同时进行以生产丁烯的一种过程。
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