| 查看: 399 | 回复: 2 | |||
guolianshun铜虫 (著名写手)
|
[求助]
请帮我翻译一段文摘谢谢，自己翻译了几遍，老板很不满意。谢谢。
|
|
A monolithic cocurrent downflow contactor (CDC) reactor was used for the palladium catalysed liquid phase hydro-genation of 2-butyne-1,4-diol (B) tocis-2-butene-1,4-diol (C) in the temperature range 293–333 K and in the pressure range 102–304 kPa. Its performance was compared with a slurry CDC reactor and a stirred tank reactor (STR). Appar-ent energy of activation (46–54.5 kJ/mol) and transport calculations indicated the reaction was surface rate controlled. A Langmuir–Hinshelwood mechanism was used to model the reaction. A good agreement was found between the rates from the model and the experimental rates. Selectivity to the product C was significantly greater for the monolith and slurry CDC (0.980–0.993) compared with the STR (0.90–0.95) at conversions of B approaching 100%. It was concluded that the monolith CDC possesses a performance comparable with the slurry CDC particularly in the selective production of C, but has the added advantage of allowing easy catalyst separation. |
回复此楼» 猜你喜欢
求计算机方向调剂
已经有6人回复
-
湖南大学刘巧玲课题组2026年第二批次博士研究生招生信息
已经有3人回复
-
通信工程求调剂！！！
已经有7人回复
-
26药学专硕105500求调剂
已经有8人回复
-
297，工科调剂?
已经有11人回复
-
申博自荐
已经有4人回复
-
294求调剂
已经有9人回复
-
289 分105500药学专硕求调剂(找B区学校)
已经有5人回复
-
291求调剂
已经有11人回复
-
304求调剂
已经有8人回复
hookhans
铁杆木虫 (著名写手)
Farmer
- 翻译EPI: 263
- 应助: 186 (高中生)
- 贵宾: 0.142
- 金币: 7919
- 散金: 576
- 红花: 51
- 帖子: 2092
- 在线: 401.5小时
- 虫号: 2260260
- 注册: 2013-01-25
- 专业: 催化化学
2楼2013-03-25 10:58:07
guolianshun
铜虫 (著名写手)
- 应助: 0 (幼儿园)
- 金币: 52.4
- 散金: 193
- 红花: 61
- 帖子: 1404
- 在线: 231.2小时
- 虫号: 979838
- 注册: 2010-03-23
- 性别: GG
- 专业: 无机材料化学
3楼2013-03-25 12:08:32
50