环境学术沙龙第825期，欢迎感兴趣的老师和同学参加。

报告题目：Novel NH₃ selective catalytic reduction (SCR) catalyst for stationary application/面向固定源应用的新型氨选择性催化还原（NH₃-SCR）催化剂

报告人：Prof. Do Heui Kim

主持人：李俊华 院士

时间：2026年9月14日（周一）15:00-17:00

地点：环境学院209会议室

报告人简介：

Prof. Do HeuiKim is a professor and chair in the Department of Chemical and Biological Engineering at Seoul National University. He received his PhD from KAIST in 2000, trained at Northwestern University, and worked at Pacific Northwest National Laboratory from 2002 to 2011. His research focuses on heterogeneous catalysis for energy and environmental applications, including the conversion of light alkanes, plastic waste and biomass, and the removal of harmful gases. He has published 275 papers and has received the 2023 Catalyst Development Excellence Award from the Asia-Pacific Societies of Catalysis.

报告内容简介

NH₃ selective catalytic reduction (NH₃-SCR) efficiently removes NO_x from flue gases. TiO₂-supported vanadia catalysts offer excellent activity and sulfur resistance at 300℃–400℃, but operation below 250℃is increasingly important. At low temperatures, ammonium bisulfate can block catalyst pores and cause sulfur-induced deactivation. This presentation introduces a simple, novel “physical mixing” strategy that enables vanadia NH₃-SCR catalysts to combine high NO_x removal efficiency with excellent sulfur resistance at low temperatures.