引用本文:
李玉敏, 王海南, 王日杰, 张继炎, 张鎏. Mo-Co-Mg/Al2O3工业耐硫变换催化剂的失活[J]. 应用化学,
1999, 16(1): 42-45.
Citation: Li Yumin, Wang Hainan, Wang Rijie, Zhang Jiyan, Zhang Liu. Deactivation of Commercial Sulfur-resisting WGSR Catalyst Mo-Co-Mg/γ-Al2O3[J]. Chinese Journal of Applied Chemistry, 1999, 16(1): 42-45.
Citation: Li Yumin, Wang Hainan, Wang Rijie, Zhang Jiyan, Zhang Liu. Deactivation of Commercial Sulfur-resisting WGSR Catalyst Mo-Co-Mg/γ-Al2O3[J]. Chinese Journal of Applied Chemistry, 1999, 16(1): 42-45.
Mo-Co-Mg/Al2O3工业耐硫变换催化剂的失活
摘要:
利用活性评价、程序升温技术、硫的测定、X光衍射和孔结构分析等手段,对工业耐硫变换催化剂(K)失活原因进行了研究,并与模型催化剂进行了比较.结果表明,催化剂(K)失活的原因是烧结;部分物相分离及转化生成不活泼MoS2、CoS2、CoSO4和MgAl2O4及活性硫转化为非活性硫.模型实验表明,反应温度偏高和水蒸汽量过大是加速失活的主要原因.
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关键词:
- 水煤气变换反应
- / Mo-Co-Mg/Al2O3催化剂
- / 失活
English
Deactivation of Commercial Sulfur-resisting WGSR Catalyst Mo-Co-Mg/γ-Al2O3
Abstract:
The deactivation of commercial catalyst for water gas shift reaction (WGSR) has been studied through activity evaluation, temperature program med technique, XRD, porosity and sulfur content measurements. It is found that the deactivation of a long-run catalyst is the results of sintering, formation of the inactive phases of MoS2, CoS2, CoSO4 and MgAl2O4, and irreversible conversion of the active sulfur component into inactive ones. Temperature and steam advance the deactivation.
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Key words:
- water gas shift reaction
- / Mo-Co-Mg/Al2O3 catalyst
- / deactivation
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