[2E15-2E18] C1 chemistry (1)

[2E18] Highly selective synthesis of light aromatics from CO₂ by chromium-doped ZrO₂ aerogels in tandem with HZSM-5@SiO₂ catalyst

○Lijun Zhang¹, Weizhe Gao¹, Yingluo He¹, Shuhei Yasuda¹, Guohui Yang¹, Noritatsu Tsubaki¹ (1. University of Toyama)

Keywords:Tandem catalyst, CO2 hydrogenation, Light aromatics

Although direct conversion of CO₂ to aromatics via a methanol-mediated pathway has made great progress recently, how to selectively synthesize light aromatics (benzene, toluene and xylenes) remains a great challenge for the perspective of industrial demand. In this work, a highly active tandem catalyst composed of chromium-doped ZrO₂ aerogel and HZSM-5@SiO₂ zeolite was employed for the hydrogenation of CO₂ to light aromatics. The ZrO₂-Cr/HZSM-5@SiO₂ catalyst achieved 13.9% CO₂ conversion, 76.8% aromatics selectivity and 51.2% light aromatics selectivity.