| 1. | This process is endothermic with rapid carbon deposition and deactivation of the catalyst .
此过程是吸热的，同时很快发生碳积沉并使催化剂活性减低。 |
| 2. | Mechanical test results must be evaluated in conjunction with catalyst activity, selectivity, and stability data .
必须将机械测试结果和催化剂活性、选择性和稳定性数据联系起来进行综合评价。 |
| 3. | Ethanol synthesis ; rh - mn catalyst ; active site ; si - oh
乙醇合成铑锰催化剂活性位硅羟基 |
| 4. | Sulfur recycle catalyst activeness decline reason and its preventive measures are analyzed
摘要分析了硫磺回收催化剂活性衰退的原因及防止措施。 |
| 5. | The effect of the new platinum precursor on the activity of automotive emission purification catalyst
新型铂前驱体对汽车尾气净化催化剂活性的影响 |
| 6. | Influence of operation condition and basic nitrogen compounds in the feed oil on activity stability of the catalyst was investigated
考察了操作条件及原料中的碱性氮化物对催化剂活性稳定性的影响。 |
| 7. | Four years of operation saw slow decline of activity of the catalysts and remarkable savings of sulfiding agent
装置近4年的应用结果表明，催化剂活性下降缓慢，节约了大量的硫化剂，取得了较好的效果。 |
| 8. | The results showed that instability of operation temperature and increase in space velocity and pressure would cause deterioration of the activity stability , resulting in shorter service cycle
结果表明，操作温度的不平稳、空速及压力的提高均会造成催化剂活性稳定性变差，运转周期缩短。 |
| 9. | Big basic nitrogen compounds ( bnc ) molecules poisoned the active sites on external surface of the catalyst , while small bnc molecules entered pore channels of the catalyst , both caused deactivation of the active sites
大分子碱性氮化物可以毒化催化剂外表面活性中心，小分子碱性氮化物可以进入催化剂孔道，造成催化剂活性中心全部失活。 |
| 10. | Compared with the catalyst prepared by precipitation , the catalyst prepared by microwave shows more homogenous distribution in particle and pore size and better catalytic activity with the yield of dpc of about 7 %
与沉淀法相比，微波法制备的催化剂具有比较均匀的尺寸和形状，活性组分在载体上的分布较好，催化剂活性较高，碳酸二苯酯的收率接近7 % 。 |
