铂—铼双金属催化剂具有比一般铂催化剂更高的稳定性,在石油重整工业中得到很好的利用。它可以在较低压力下,较高起始温度下操作,使芳烃产率由原来铂重整的30%左右提高到40%。国内现在使用的3741铂铼催化剂为以η—Al_2O_3为担体的全氯型铂—铼—铝催化剂。催化剂在高温高压下与烃类原料长期接触以后会慢慢地被毒害钝化。含碳物在催化剂活性位置上是使催化剂失去活性的一个因素。因此催化剂必须采用熟知的方法在一定的时期内加以再生更新。一般是在氧化气氛中加热使催化剂活性恢复。但是催化剂经过多次再生之后,就越来越难于恢复到它原先的活性。因此,必须用新催化剂替换失去活性的催化剂。钝化的催化剂必须进行处理以回收其中的有价元素 Platinum - rhenium bimetallic catalysts with higher stability than the average platinum catalyst, the oil reforming industry is well used. It can operate at lower pressures and at higher initial temperatures, raising the aromatics yield from about 30% of the original platinum reforming to 40%. The 3741 platinum-rhenium catalyst currently used in China is a perchloroaluminum-rhenium-aluminum catalyst supported on η-Al 2 O 3. Catalysts at high temperature and pressure and long-term contact with hydrocarbon raw materials will be slowly passivated poison. Carbonaceous material is a factor in deactivating the catalyst at the site of catalyst activity. Therefore, the catalyst must be regenerated and renewed within a certain period of time by well-known methods. The catalyst activity is generally restored by heating in an oxidizing atmosphere. However, after repeated regeneration of the catalyst, it becomes more and more difficult to recover its original activity. Therefore, it is necessary to replace the deactivated catalyst with a new one. Passivated catalysts must be treated to recover the valence elements therein