| 释义 |
裂化lièhuà在一定条件下,分子量较大的烷烃分解成分子量较小的烷烃和烯烃。是石油加工的重要方法,可分为热裂化(400—700℃)、催化裂化和加氢裂化。{cracking; process of breaking down alkanes of greater molecular weight into alkane and alkene of smaller molecular weights under specific conditions, an important part of distillation of petroleum that can be thermal cracking (400-700℃), catalytic cracking and hydrocracking} |