柴油中硫化物的络合分离? 孙波,赵岩涛.杂多酸催化氧化脱除柴油中硫化物的研究[j]. 吉林化工学院学报,2010.(1):4-6,11.以活性炭负载磷钨杂多酸(hpw)为催化剂,h2o2为氧化剂,对含二苯并噻吩(dbt)模拟柴油进行催化氧化脱硫研究.考察了负载量、反应时间、反应温度及氧化剂与模拟柴油体积比v(o):v(m)对脱硫率的影响.结果表明:活性炭负载磷钨杂多酸对模拟柴油脱硫具有较好的催化活性;最适宜的催化氧化条件是hpw的负载量60%-70%,反应时间为1.5h;温度为60℃;v(o):v(m)=1:5;此条件下,dbt的脱除率为97.4%.[ last edited by wust67 on 2010-7-8 at 18:08 ] 查看更多
关于用化学吸附仪做化学脉冲实验计算金属分散度的一些问题!求帮助!!? 4楼回答的很好!2、还有氢气原子数与活性金属原子数都是一一对应的吗?氢气吸附一般适用于镍\钴等,但是不适合于贵金属及铜, 因为后者易发生氢溢流, 误差很大!贵金属多采用co吸附!catalysis communications, volume 10, issue 12, 25 june 2009, pages 1586-1590applied catalysis b: environmental, volume 127, 30 october 2012, pages 212-2203、我想测有fe2o3-cuo/al2o3这样的表面活性金属分散度,测得的金属分散度是不是可以理解为d=(活性fe原子数+活性cu原子数)/(样品总的fe原子数+样品总的cu原子数)铜的分散度测定最有效的是n2o氧化,fe的分散度估计很难,因为它很难被还原到金属态!n2o氧化测铜的分散度很技术成熟、也最为全世界的研究者认可!journal of catalysis, in press, corrected proof, available online 15 october 2012fuel, volume 96, june 2012, pages 419-425applied catalysis a: general, volume 403, issues 1–2, 22 august 2011, pages 173-182applied catalysis b: environmental, volume 101, issues 3–4, 14 january 2011, pages 431-440(hottes 25 papers of the journal)5、用来计算d的吸附的h2体积,是不可逆化学吸附的h2总体积吗?室温下氢的吸附在镍上多数都是不可逆的,关键是co吸附在pt上,有大量可逆吸附!所以测定的技巧需要锻炼!所以文献中常有这样的话the catalyst was cooled to room temperature and co pulses were injected from a calibrated on-line sampling valve. co adsorption was assumed to be completed after three successive peaks showed the same peak areas. a co/pt stoichiometry of 1 was used for calculations.catalysis communications, volume 10, issue 12, 25 june 2009, pages 1586-1590applied catalysis b: environmental, volume 127, 30 october 2012, pages 212-220, 查看更多