diolefin

英

美

n. 二烯

When non-noble metal catalysts are selected for selective hydrogenation of diolefin, full-range FCC gasoline hydrogenation process is preferred.
当选用非贵金属催化剂时，二烯烃选择性加氢单元应优先采用催化裂化全馏分加氢流程；
An optimum technological condition for separating the diolefin substance from raw materials by the solvent precipitation from dially alcohol ketone acetate waste residue was determined.
通过分析双烯醇酮醋酸酯废渣的组成，提出溶剂沉淀法回收分离废渣中的产品和原料的工艺路线，确定了优惠工艺条件。
Infrared spectrum analyses show that the grease includes oxygen containing polymer and diolefin polymer.
红外光谱分析结果表明，黄油中不但有含氧聚合物，同时也含有裂解气中丁二烯的聚合物。
Some measures to avoid coking on the assignment plate or the top of protecting catalyst for the polymerizing of diolefin in gasoline at high temperature and further arising in pressure dorp of reactor were presented.
并提出了避免装置因原料中二烯烃、胶质等高温聚合在分配盘或保护剂上部结焦而出现反应器压降升高多项措施。