文献类型：期刊文献

英文题名：A potential catalyst for α-pinene isomerization: a solid superacid

作者：Meng, Xuan[1];Chen, Yanqi[1];Wu, Wenxing[1];Liu, Naiwang[1];Shi, Li[1]

机构：[1]East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：48

期号：18

起止页码：8082

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;EI(收录号：20241615932086);WOS:【SCI-EXPANDED(收录号:WOS:001199778600001)】；

语种：英文

外文关键词：Ammonia - Chemical reactors - Crystallinity - Isomerization - Isomers - Olefins

摘要：A series of SO42-/TiO2 solid superacid catalysts were prepared under different conditions. The effect of different preparation conditions on the SO42-/TiO2 catalyst was investigated by evaluating the change of its crystallinity, chemical structure and acid content. The catalytic performance of the SO42-/TiO2 catalyst was evaluated by alpha-pinene isomerization in a continuous fixed bed reactor. When ammonia was used as the precipitation agent, the concentration of sulfuric acid impregnation solution was 2 M, and the calcination temperature was 500 degrees C, the activity of the SO42-/TiO2 catalyst reached the maximum, the conversion rate of alpha-pinene was stable at about 95%, and the selectivity of camphene reached 40%. It was found that the structure and textural properties of the SO42-/TiO2 catalyst did not change significantly after regeneration by studying the regeneration performance of the SO42-/TiO2 catalyst. The calcination temperature affects the crystallinity of the catalyst.