Some novel preparations prevent the catalysts from reacting with the supports, and thus extend the catalyst service life.
某些制备技术可以有效地防止催化剂与载体的反应，从而延长了催化剂的使用寿命。
Through combining rotational flow plate and silk net skimmer, the utility model can effectively prevent liquid droplets carrying phenomenon, thereby reducing loss of rhodium catalyst.
通过将旋流板和丝网除沫器组合在一起，本实用新型能有效地阻止液滴夹带现象，减少铑催化剂的损失。
If the gas is processed in contact plants, this fluorine must be removed to prevent damage to the catalyst.
假若该气体在接触法工厂中加工，则氟必须除去，以免损害摧化剂。
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