| 查看: 376 | 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
表哥与省会女结婚，父母去帮带孩子被省会女气回家生重病了
已经有12人回复
-
依托企业入选了国家启明计划青年人才。有无高校可以引进的。
已经有14人回复
-
江汉大学解明教授课题组招博士研究生/博士后
已经有3人回复
-
AI 太可怕了，写基金时，提出想法，直接生成的文字比自己想得深远，还有科学性
已经有11人回复
-
依托企业入选了国家启明计划青年人才。有无高校可以引进的。
已经有11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: 8122.5
- 散金: 576
- 红花: 51
- 帖子: 2078
- 在线: 399.9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