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本文介绍了由实验测定的天然气与水蒸汽(或炉顶气、空气)转化制冶金用还原气的催化剂的孔结构与其活性及抗结炭、抗烧炭粉化性能之间的关系。实验发现,在常压、高温、低水碳比条件下,双峰孔结构催化剂的表面利用率要比单峰孔结构的为高。在双峰孔结构中,其小孔的最可几半径以1000±500×10~(-10)m较合适,它在反应中较稳定,活性随这部份孔容的增加而有所增高.而双峰孔结构的大孔应以大于10000×10~(-10)m的孔为主,其孔容反应占总孔容的80%左右。孔容大,其抗结炭、抗烧炭粉化性能较好。
This paper describes the experimental determination of the natural gas and steam (or the top gas, air) into the metallurgical reduction gas used in the catalyst pore structure and its activity and anti-carbon, anti-charcoal powdered performance relationship. The experimental results show that the surface utilization ratio of bimodal pore structure catalyst is higher than that of single pore structure under the conditions of atmospheric pressure, high temperature and low water-carbon ratio. In the bimodal pore structure, the most radii of the pores are more suitable at 1000 ± 500 × 10 ~ (-10) m, which is more stable in the reaction and activity increases with the increase of pore volume While that of bimodal pore structure should be dominated by pores larger than 10000 × 10 ~ (-10) m, and its pore volume reaction accounts for about 80% of the total pore volume. Hole capacity, its anti-caking charcoal, anti-charcoal powder better performance.