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利用常压微反色谱、程序升温还原(TPR)等技术研究了钛对耐硫变换催化剂性能的影响,结果表明:(1)钛能明显提高耐硫变换催化剂的活性,尤其是在低于623K时活性提高最为明显;(2)工业侧流试验后,含钛样品的保留活性及活性保留率均高于K8-11;(3)催化剂中添加助剂TiO2后,能显著提高对原料气中H2S含量变化的适应能力,因此可以拓宽对原料气的选择范围,对工业生产有着十分重要的现实意义。
The effects of titanium on the performance of sulfur-tolerant shift catalysts were investigated by atmospheric pressure microdilution and temperature-programmed reduction (TPR). The results show that: (1) Titanium can significantly improve the activity of sulfur-tolerant shift catalysts, especially at lower than 623K (2) After the industrial side-flow test, the retention activity and retention rate of the titanium-containing samples were higher than that of K8-11. (3) The addition of TiO2 as a promoter in the catalyst could significantly improve the activity of the raw material gas H2S content of the adaptability to change, so you can broaden the selection of raw gas range, the industrial production has very important practical significance.