[2D01-09] Hydrogen production, Energy carriers, CCU(2)

9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)Japanese

[2D01] Direct synthesis of dimethyl ether by hydrogenation of carbon dioxide using Cu-Al₂O₃-SiO₂ based catalysts prepared by sol-gel method

○Kaoru TAKEISHI¹, Koki IGARI¹ (1. Shizuoka University, Graduate School of Integrated Science and Technology)

Keywords:

dimethyl ether (DME),carbon dioxide,hydrogen

Cu-based alumina catalysts prepared using sol-gel method are excellent for direct synthesis of dimethyl ether by CO and/or CO₂ hydrogenation, because Cu sites (active species for methanol formation) and acid sites (Al₂O₃) which are the active species for methanol dehydration are close to each other and are highly dispersed. In this study, the activity of the direct synthesis of DME from CO₂ has been improved by preparing the acid catalysts Al₂O₃-SiO₂, which work for methanol dehydration, using the sol-gel method.