摘要
运用固定床流动反应装置、ＴＰＲ和ＸＲＤ等手段考察了载体的晶相组成、比表面和孔结构等性质对Ｎｉ基催化剂在甲烷部分氧化制合成气中反应性能的影响。结果表明，热稳定性好、导热好的惰性材料如（Ｃａ）ＭｇＡｌ２Ｏ４等是甲烷部分氧化制合成气理想的催化剂载体。载体必须具有适当的比表面和孔结构，以利于反应物分子在催化剂表面吸附并与活性中心充分接触，同时也有利于产物分子脱附并离开催化剂表面，防止副反应（积碳反应和燃烧反应）的发生，及时把反应热移走，避免热点产生使催化剂失活。另外还发现。
The activity of nickel catalysts on different supports were examined in a fixedbed flow
reactor. The influences of support component, surface area and pore radius on the performance
of catalysts were investigated through temperature-programmed reduction (TPR) and XRD
analysis.It is found that the inert material as (Ca)MgaAl2O4,with certain surface area and pore
radius,high thermal stability and fine heatconduction is an ideal catalyst support for partial
oxidation of methane to syngas.It is also found there is each one optimum space velocity for
catalyst with different surface area and pore radius.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
1999年第3期4-8,共5页
Natural Gas Chemical Industry
基金
国家自然科学基金
