Ethylbenzene dehydrogenation method

The invention belongs to the technical field of synthesis, and particularly discloses an ethylbenzene dehydrogenation method, which comprises: carrying out dehydrogenation reaction on ethylbenzene under the catalysis of a boron-nitrogen-phosphorus catalyst to prepare styrene; wherein the boron-nitrogen-phosphorus catalyst is a boron nitride two-dimensional material modified with P=O and P-OH. Theprimary innovation of the invention lies in that the boron nitride two-dimensional material modified with P=O and P-OH is used as a dehydrogenation catalyst of ethylbenzene. The inventor innovativelyfinds that the catalyst can show excellent high temperature resistance, high activity, high stability and good carbon deposition resistance in ethylbenzene dehydrogenation reaction, can effectively improve the ethylbenzene conversion rate, improve the styrene selectivity and improve the reaction activity, and can also effectively improve the catalytic stability. 本发明属于合成技术领域，具体公开了乙苯脱氢方法，将乙苯在硼氮磷催化剂催化下进行脱氢反应，制得苯乙烯；所述的硼氮磷催化剂为修