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以SO2 为毒物 ,采用脉冲中毒方法 ,再以CO氧化反应为探针 ,对三元复合氧化物催化剂La0 .5Sr0 .5NiO3 与La0 .5Sr0 .5CuO3 以及四元复合氧化物催化剂La0 .5Sr0 .5Ni0 .5Cu0 .5O3 等三种催化剂样品的抗硫毒能力、失活曲线、中毒催化剂的再生性能以及毒物残留形态等进行了全面考察和对比分析。实验结果表明四元复合氧化物催化剂La0 .5Sr0 .5Ni0 .5Cu0 .5O3 在SO2 毒物含量是 1 2 2×10 -2 mmol时 ,特别是在高温 (≥ 30 0℃ )条件下 ,具有优异的抗硫性能
Using SO2 as poison, using pulse poisoning method, and CO oxidation reaction probe, the ternary composite oxide catalyst La0 .5Sr0 .5NiO3 and La0 .5Sr0 .5CuO3 and quaternary composite oxide catalyst La0 .5Sr0 .5Ni0. 5Cu0 .5O3 three kinds of catalyst samples such as anti-sulfur toxicity, inactivation curve, poisoning catalyst regeneration performance and poison residue morphology were investigated and comparative analysis. The experimental results show that La0.5Sr0.5Ni0.5Cu0.5O3, which is a quaternary composite oxide catalyst, has excellent anti-oxidant activity when the SO2 poison content is 112 2 × 10 -2 mmol, especially under high temperature (≥30 0 ℃) Sulfur performance