关键词: 制氢转化炉, 烟气脱硝, 低温SCR, 催化剂, 反应器

Abstract: At present, the mature low temperature denitration technologies applied in hydrogen production reformer mainly include low nitrogen combustion technology and selective catalytic reduction technology (SCR). Low temperature SCR denitration technology is more suitable for denitration transformation of petrochemical hydrogen production reformer. The key of denitration technology lies in the selection of catalyst. Through the transformation example, this paper puts forward the technical transformation of low temperature denitration with domestic manganese catalyst to stabilize the NO_x concentration at the outlet of reformer below 50 mg/m³, which has the characteristics of maintaining the original process flow configuration of hydrogen production reformer, stable performance, reliable technology and low investment. In the process of reconstruction design, auxiliary design such as flow field simulation and system optimization can reduce construction investment and improve operation reliability. It can provide reference for denitration transformation of hydrogen production reformer.    

Key words: hydrogen production reformer, flue gas denitration, low temperature SCR, catalyst, reactor