在内燃、电力机车空气干燥器中,作为吸附剂使用活性氧化铝,经过多次反应,因化学变化和结构变化而导致活性降低,比表面积下降,不能满足生产需要而废弃。废弃的活性氧化铝大量堆积造成资源浪费,对环境也造成极大的污染。因此有必要对其进行再生利用。本文就其再生利用的方法进行了阐述。 In the internal combustion, electric locomotive air dryer, the use of activated alumina as an adsorbent, after repeated reactions, due to chemical changes and structural changes resulting in reduced activity, the specific surface area decreased, can not meet the production needs and abandoned. Abandoned large amount of active alumina accumulation waste of resources, also caused great pollution to the environment. Therefore, it is necessary to recycle it. This article describes its recycling method.