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100金悬赏翻译化工英文文献
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100金求助翻译一遍化工英文文献，不要直接用翻译软件，以下是文献摘要，全文在米人里。 Abstract The effect of promoter addition on activity of CeO2/c-Al2O3 was assessed via the CWAO of phenol. Adding Cu as the promoter rendered the most effective performance, followed by Mn, although the performance of Mn-promoted catalyst was inferior to CeO2/ c-Al2O3. Mineralization of phenol was effectively implemented at 160 C using Cu-promoted catalyst (Ce15Cu5). Furthermore, at 180 C this catalyst produced about 100% conversion of phenol (1 h) and 95% removal of chemical oxygen demand (4 h), higher than that of CeO2/c-Al2O3. In contrast, Mn-promoted catalyst (Ce15Mn5) required a temperature above 220 C for acceptable performance. Activity of re-used catalyst declined noticeably, due to deposits of carbonaceous compounds and leaching of metal ions. Regeneration with acetone rinsing after the first run was effective in recovering activity of Ce15Cu5, although after a second run further regeneration with acetone rinsing had only a moderate effect, due to residual carbonaceous deposits and the additive effect of leached metal species in each run. As an alternative to acetone, HCl or HNO3 solution (0.01 M) was less effective at regenerating activity. In promoted catalysts, leached metal ions accounted for the majority of mineralization of phenol, while the solid catalyst played a dual role of initiator and terminator of free radicals. Despite a superior catalytic performance, leaching of Cu2+ from the promoted catalyst caused a severe decline in activity and poses the problem of secondary pollution of treated wastewater. Therefore, addition of Cu, as well as other metal species, is unfavorable in promoting the CeO2/c-Al2O3 catalyst. https://www.namipan.com/d/%e6%b1%82%e5%8a%a9%e7%bf%bb%e8%af%91.pdf/ |
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6楼2010-04-27 20:59:14
2楼2010-04-25 14:19:09
3楼2010-04-25 14:44:54
xxsst888
铜虫 (小有名气)
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rainny8823(金币+2, 翻译EPI+1): 2010-04-27 20:59
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添加催化剂的引发剂对催化剂ceo2/c-al203活性的影响可通过苯酚的降解来评估。添加铜作为引发剂可得到最好的效果，其次为锰，（虽然锰引发的催化剂的效果不及ceo2/c-al203） 使用铜做引发剂的催化剂ce15cu5时，苯酚的成盐反应可在160*c进行，180 *c 时，苯酚的转化率高达100%（1小时），氧气的去除率达95%（4小时） ，催化效果强于ceo2/c-al203。锰引发的催化剂ce15mn5则需要220*c。 由于碳化合物和金属离子的沉淀作用，重复使用的催化剂其催化效果会明显降低。 催化剂的重复使用 第一次使用过的ce15cu5可以用丙酮淋洗可恢复活性。由于沉淀的碳化合物和金属物的影响，即使用丙酮的替代品盐酸或硝酸（0.01摩尔）溶液，恢复的效果也不是很理想。含有引发剂的催化剂在苯酚成盐反应中起着重要的作用，因为引发剂既是自由基的提供者也是终结者。没有引发剂铜，催化剂的活性会降低很多，但铜离子2+会对废水的处理构成二次污染，所以，在ceo2-c-al20l3中，最好不用金属类引发剂。 |
5楼2010-04-27 11:09:55
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