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催化剂广泛应用于化学加工工业中,用于非均相催化过程的多数催化剂,在使用一段时间之后,活性会下降。催化剂的活性下降到无实用价值时所用的时间随操作条件及催化反应的类型而变,石油催化裂解催化剂仅于几秒内活性就下降了,氨合成催化剂的寿命可达一年以上。催化剂使用时间的大幅度变化,对催化反应器的设计和操作有很大影响,如果催化剂活性衰退的时间很短,需连续再生,应选用
Catalysts are widely used in the chemical processing industry and most catalysts used in the heterogeneous catalysis process have a reduced activity after a period of use. Catalytic activity decreased to no practical value of the time used with the operating conditions and the type of catalytic reaction and change, petroleum catalytic cracking catalyst activity decreased in just a few seconds, ammonia synthesis catalyst life of up to one year. Significant changes in the catalyst life, the catalytic reactor design and operation have a great impact, if the catalyst activity decline is very short, continuous regeneration, should be used