An efficient and selective deoxygenation of sulfoxides over CoOMoO3Al2O3 hydrodesulfurization catalyst
An efficient and selective deoxygenation of sulfoxides over CoOMoO3Al2O3 hydrodesulfurization catalyst
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CoOMoO3Al2O3 加氢脱硫催化剂上亚砜的高效选择性脱氧
DOI：
10.1016/0021-9517(80)90365-6
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发表时间：
1980
影响因子：
7.3
通讯作者：
D. Levaché
中科院分区：
文献类型：
--
作者：
P. Geneste;M. Bonnet;C. Frouin;D. Levaché
亚砜向硫化物的转化可以通过使用廉价的普通工业加氢脱硫催化剂来实现。在这种实验中所用的实验条件可以减少到相当温和的条件-10大气压，70/sup 0/C，并适用于各种亚砜。该催化剂具有以下组成（重量%）：CoO 2.8; MoO/sub 3/，13.5; NiO<0.03; SiO/sub 2/，2.8;和Al/sub 2/O/sub 3/，80.9。使用H/sub 2/S 15体积%和H/sub 2/5体积%的气体混合物使催化剂硫化。将亚砜和催化剂在十二烷或苯溶液中引入反应器中。在低于工作温度10 - 15/sup 0/下引入H/sub 2/。通过用5个大气压的氮气吹扫除去空气。通过气相色谱法分析所有产物。通过与真实样品的ir、/sup 1/HNMR和/sup 13/CNMR谱的比较，对它们进行了鉴定。讨论了反应动力学。1张桌子。
The transformation from the sulfoxides to the sulfides can be achieved by using an inexpensive common industrial hydrodesulfurization catalyst. The experimental conditions used in such experiments can be reduced to fairly mild conditions--10 atm, 70/sup 0/C, and applied to various sulfoxides. The catalyst has the following composition(wt%): CoO 2.8; MoO/sub 3/, 13.5: NiO<0.03: SiO/sub 2/, 2.8; and Al/sub 2/O/sub 3/, 80.9. The catalyst was sulfurized using a gas mixture of H/sub 2/S 15% and H/sub 2/ 5% by volume. The sulfoxide and the catalyst were introduced into the reactor in a dodecane or benzene solution. H/sub 2/ was introduced at 10 to 15/sup 0/ below the working temperature. Air was removed by purging with nitrogen at 5 atm. All products were analyzed by vapor-phase chromatography. They were identified by comparison with ir, /sup 1/HNMR, and /sup 13/CNMR spectra with those of authentic specimens. The kinetics are discussed. 1 table.