| 查看: 210 | 回复: 2 | ||
| 当前主题已经存档。 | ||
| 【悬赏金币】回答本帖问题，作者huangxiandi2007将赠送您 3 个金币 | ||
huangxiandi2007木虫 (初入文坛)
|
[求助]
求助翻译!
|
|
|
请高手帮帮忙!急用 A procedure to prepare Pt-promoted sulfated zirconia (SZ) catalysts which results in highly active and stable catalyst for n-pentane isomerization at atmospheric conditions, is described. High temperature calcination of SZ prior to Pt addition leads to elimination of loosely-bound sulfur species from the zirconia surface. Reducing the catalyst after Pt addition results in further increase in apparent activity. Upon repeated regenerations, an increase of up to 60% in conversion with iso-pentane selectivity of over 80% is observed. It is proposed that regenerative oxidation/reduction cycles lead to a restructuring of the acid and metal sites which facilitates hydrogen migration and helps to arrest deactivation. |
回复此楼» 猜你喜欢
0856材料与化工，270求调剂
已经有3人回复
-
材料化工调剂
已经有11人回复
-
高分子化学与物理调剂
已经有12人回复
-
0805总分292，求调剂
已经有5人回复
-
306分材料调剂
已经有5人回复
-
化工299分求调剂 一志愿985落榜
已经有5人回复
-
材料学硕318求调剂
已经有11人回复
-
0856化工专硕求调剂
已经有12人回复
-
265分求调剂不调专业和学校有行学上就
已经有7人回复
-
298求调剂
已经有6人回复
2楼2008-04-17 17:13:55
3楼2008-04-17 23:42:05
30