Heterogeneous and non-acid process for production of epoxidized soybean oil from soybean oil using hydrogen peroxide as clean oxidant over TS-1 catalysts
Heterogeneous and non-acid process for production of epoxidized soybean oil from soybean oil using hydrogen peroxide as clean oxidant over TS-1 catalysts
复制标题
TS-1催化剂上过氧化氢作为清洁氧化剂以大豆油为原料生产环氧化大豆油的非均相非酸工艺
DOI：
10.1016/j.micromeso.2018.09.028
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发表时间：
2019
影响因子：
5.2
通讯作者：
Wu Guoqiang
中科院分区：
文献类型：
--
作者：
Chen Chao;Cai Lei;Li Liang;Bao Lixia;Lin Zhengguo;Wu Guoqiang
为了开发一种高效、环境友好的大豆油环氧化催化剂，在控制反应条件下制备了一系列不同硅钛比（TS-1-x，x= 40，70，80）的钛硅分子筛（TS-1-x）、介孔分子筛TS-1-40（MTS-1-40）和纳米TiO 2催化剂。采用XRD、IR、UV-Vis、TGA、ICP、SEM、TEM和N2吸附等表征手段对催化剂进行了表征，并以H2 O2为清洁氧化剂，系统研究了催化剂上SO环氧化反应的催化性能。结果表明，TS-1-x催化剂具有较高的环氧化催化活性和较低的H2 O2消耗量，TS-1骨架中Ti位的数量对其环氧化反应的催化性能有着重要的影响，这与TS-1骨架中Ti位的性质和配位构型有关.此外，还对TS-1-40催化剂的重复使用和再生性能进行了研究。
In order to develop an efficient and environmental friendly approach for epoxidation of soybean oil (SO), a series of hetero-catalysts, titanium silicalite-1 (TS-1) with different Si/Ti ratio (TS-1-x,x= 40, 70, 80), mesoporous TS-1-40 (MTS-1-40) and anatase TiO2, were prepared under controlled conditions. These different catalysts were characterized by various characterization methods like XRD, IR, UV–Vis, TGA, ICP, SEM, TEM and N2-adsorption, respectively, and the catalytic reaction experiments of the SO epoxidation were studied systematically using hydrogen peroxide (H2O2) as clean oxidant over the different catalysts. The results reveal that the TS-1-xcatalysts exhibit higher epoxidation catalytic activity and less consumption of H2O2than anatase TiO2, and the number of framework Ti sites in TS-1 structure played a very important role in their catalytic performance of the epoxidation reaction, which is attributed to the unique nature and coordination geometry of the Ti sites in TS-1 framework. Furthermore, the reusability and regeneration behaviors of TS-1-40 catalyst were also studied.