使用具有减小的孔开口的 ZSM-5 催化剂通过催化快速热解从生物质生产对二甲苯。
Production of p-xylene from biomass by catalytic fast pyrolysis using ZSM-5 catalysts with reduced pore openings.
机构信息
Chemical Engineering, University of Massachusetts, 159 Goessmann Lab, 686 North Pleasant Street, Amherst, MA 01003-9303, USA.
出版信息
Angew Chem Int Ed Engl. 2012 Oct 29;51(44):11097-100. doi: 10.1002/anie.201205230. Epub 2012 Oct 4.
Pores for thought: Chemical liquid deposition of silica onto ZSM-5 catalysts led to smaller pore openings that resulted in >90% selectivity for p-xylene over the other xylenes in the catalytic fast pyrolysis of furan and 2-methylfuran (see scheme). The p-xylene selectivity increased from 51% with gallium spray-dried ZSM-5 to 72% with a pore-mouth-modified catalyst in the pyrolysis of pine wood.
发人深省的小孔
通过化学液相沉积法将硅酸钠沉积到 ZSM-5 催化剂上，导致孔径变小，在呋喃和 2-甲基呋喃的催化快速热解中，对二甲苯的选择性超过其他二甲苯，达到>90%（见图）。与使用过的 Ga 喷雾干燥 ZSM-5 相比，在松木热解中，通过对孔口进行修饰的催化剂，对二甲苯的选择性从 51%提高到 72%。
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