分析了影响醚化催化剂使用寿命的因素，提出了延长醚化催化剂使用寿命的措施。
The factors which influences the service life of catalyst for etherification are analyzed, and the measures to lengthen its life are putted forword.
这样就避免了催化剂与原料中的污染物和重质毒物接触，因而催化剂使用寿命较长。
Thus the contact of the catalyst with pollutants in feedstock and heavy toxicants is avoided. So the catalyst service life is longer.
为加氢裂化装置所使用的精制催化剂和反应催化剂的性能、脱硫效果以及催化剂使用寿命的判断提供了依据。
This provides a good basis for assessing the performance and desulfurization result of the refining catalyst and cracking catalyst of the hydrocracker as well as the service life of the catalysts.
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