| 查看: 649 | 回复: 1 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
ankang276金虫 (正式写手)
|
[求助]
求校对一段汉译英
|
||
|
本论文采用核磁共振光谱（NMR）研究了ZSM-22/ZSM-23共结晶分子筛负载贵金属制备的催化剂的加氢异构反应性能，通过200SN脱蜡油、650SN糠醛精制油和加氢裂化尾油三种原料油加氢异构反应前后油品的结构特征和结构参数变化与倾点、粘度指数宏观性质相关联可知：加氢异构反应后，基础油产品的支化度都有不同程度的增大，正构烷烃含量降低，异构烷烃含量增加，基础油的倾点和粘度指数也随之降低，但是基础油产品的平均链长变化较少，表明了ZSM-22/ZSM-23共结晶分子筛负载贵金属制备的催化剂有较好的加氢异构性能。与Pt/ZSM-22和Pt/ZSM-23催化剂相比较，在弱酸性的Pt/ZSM-22/ZSM-23催化剂上650SN糠醛精制油经加氢异构反应得到的产品中异构烃含量较多，平均链长较大，Pt/ZSM-22/ZSM-23催化剂表现出了较好的加氢异构性能。 The hydroisomerization performance of ZSM-22/ZSM-23 which loaded noble metal was studied by NMR. According to the variety of strcture characters and structure index, and associated with macroscopic properties such as pour point and viscosity index for 200SN, 650SN, hydrocracking tail oil and their isomerization products, it shown the branch degree of lube base oil products increased in varying degrees, normal paraffin content decreased, and the isoparaffin content increased after hydroisomerization reaction, so the pour point and viscosity index of base oil also decreased, but the average chain length changed little. Compared with the Pt/ZSM-22 and Pt/ZSM-23 catalyst, 650SN furfural refined oil after hydroisomerization on Pt/ZSM-22/ZSM-23 catalyst which had weaker acidity, the products had more isoparaffin, and longer average chain length, which indicated that Pt/ZSM-22/ZSM-23 has better hydroisomerization performance. |
回复此楼» 猜你喜欢
能否退出参与的面上项目解除限项
已经有18人回复
-
如果此刻你正在为国基感到焦虑，不妨来听听这首《基金之外》
已经有3人回复
-
今日不放榜？网传国自然预计 8 月 27 日可查结果
已经有21人回复
-
估计是周四
已经有4人回复
-
我面上完蛋了
已经有9人回复
-
2026国自然函评费到账
已经有18人回复
-
建议基金发布提前给出明确的时间点
已经有15人回复
-
范进中举一文的中心思想
已经有7人回复
-
朋友圈看到的
已经有9人回复
-
让我中一个面上吧！
已经有16人回复
8814402
至尊木虫 (职业作家)
- 翻译EPI: 509
- 应助: 18 (小学生)
- 贵宾: 0.381
- 金币: 12921.1
- 散金: 47
- 红花: 16
- 帖子: 4185
- 在线: 357.9小时
- 虫号: 1184404
- 注册: 2011-01-06
- 专业: 药物学其他科学问题
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
sltmac: 金币+1 2012-05-03 08:53:49
ankang276: 金币+30, 翻译EPI+1, ★★★很有帮助 2012-05-03 13:36:33
sltmac: 金币+1 2012-05-03 08:53:49
ankang276: 金币+30, 翻译EPI+1, ★★★很有帮助 2012-05-03 13:36:33
| The hydroisomerization performance of the catalyst of ZSM-22/ZSM-23 cocrystallization molecules loaded onto noble metal was studied through nuclear magentic resonance spectroscopy (NMR). By associating the change of strcture characters and structure index of oils before and after hydroisomerization reactions with macroscopic properties including pour point and viscosity index of 200SN, 650SN, hydrocracking tail oil and their corresponding isomerization products, it can be known that the branch degree of lube base oil products increased to various extents, the content of normal paraffin decreased, and the content of isoparaffin increased after hydroisomerization reaction, and thus the pour point and viscosity index of base oil also decreased while the average chain length changed little. Compared with on Pt/ZSM-22 and Pt/ZSM-23 catalysts, the products of 650SN furfural refined oil after hydroisomerization on the Pt/ZSM-22/ZSM-23 catalyst with weak acidity had more isoparaffin, and longer average chain length. It indicated better hydroisomerization performance of Pt/ZSM-22/ZSM-23 than that of Pt/ZSM-22 and Pt/ZSM-23 catalysts. |
2楼2012-05-03 08:48:51
20