| 查看: 566 | 回复: 1 | |||
[求助]
由于刚学工程不久，求解两道化工外文题目
|
|
Question 1 Compound A undergoes a reversible isomerization reaction over a supported metal catalyst. A⇆B Under pertinent conditions A and B are liquid, miscible and are of nearly identical density; the equilibrium constant for the reaction (in concentration units) is 5.8. In a fixed bed isothermal flow reactor in which back mixing is negligible (i.e. plug flow), a feed of pure A undergoes a net conversion to B of 55%. The reaction is elementary. If a second identical flow reactor at the same temperature is placed downstream from the first what overall conversion of A would you accept if: a)The reactors are directly connected in series? b)The products from the first reactor are separated by appropriate processing and only the uncovered A is fed to second reactor? Question 2The following reversible gas phase reaction follows an elementary rate law and is carried out isothermally at 325 K in a packed bed reactor. The two feed streams to the reactor mix to form a single feed stream that is equal molar in A and B (5 mol/s) with total volumetric flow rate of 60 dm3/s. (a)Calculate the maximum conversion that can be accomplished by the reaction. (b)Calculate the weight of catalyst required to achieve a conversion of 80%. A+B2Ck1k2 2(c)Calculate the conversion with catalyst of total weight of 125 kg. What is the catalyst weight you would recommend to use for this process? Giving that: FA0 = 5 mol/s E = 25 kcal/mol k1= 0.4 dm6/mol.kg.s @310K Ke= 10,000 @ 325 K α = 0.012 /kg  |
回复此楼» 猜你喜欢
0856调剂
已经有8人回复
-
275求调剂
已经有7人回复
-
26超级电容器申博
已经有3人回复
-
博士自荐
已经有5人回复
-
290分材料工程085601求调剂 数二英一
已经有4人回复
-
283求调剂
已经有5人回复
-
求调剂
已经有11人回复
-
材料270求调剂
已经有6人回复
-
材料085601调剂
已经有5人回复
-
085600 英一数二272求调剂
已经有16人回复
fatewu
主管区长 (文坛精英)
小木虫浪漫体验师~\(^o^)/~
-
专家经验: +790 - CE-EPI: 7
- 应助: 521 (博士)
- 贵宾: 19.629
- 金币: 19729
- 散金: 169099
- 红花: 648
- 沙发: 2560
- 帖子: 43961
- 在线: 6049.8小时
- 虫号: 3063713
- 注册: 2014-03-17
- 专业: 未来学
- 管辖: 化学化工区
2楼2015-10-17 20:29:15
5