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高硫合成气制甲硫醇钼硫基催化剂的制备
Preparation of Mo S based Catalysts for Methanthiol Synthesis from High H 2S containing Syngas
【摘要】 考察2 种 不同前 驱体制得 的 钼硫 基催 化 剂对 含 高硫 化氢 合 成气 转化 为 甲硫 醇的 催 化性能,探讨 助剂( K2 C O3 、 K Cl 和 K F) 、温度 和压力 对催化剂 活性的影 响,以( N H4) 2 Mo S4 作为前驱 物料所制得 的 Mo S2/ K2 C O3/ γ Al2 O3 催化 剂具有与 K2 Mo S4 衍生所 得到的 催化剂行 为相似. X R D 谱学表征结 果显示, 弱碱性 钾 盐( K2 C O3 和 K F) 促 进的 Mo S2/ K + / γ Al2 O3 与 K2 Mo S4/ γ Al2 O3 催 化剂工作表 面皆生 成了 Mo S K新 的活性相(2 θ= 29 8°和308°) .
【Abstract】 The catalytic performance of Mo S K based catalysts prepared with different precursors for synthesis of methanthiol from high H 2S containing syngas has been investigated. The effects of the promotors K 2CO 3, KCl and KF on the activity of the catalyst under various temperature and pressure conditions have been examined. The results show that MoS 2/K 2CO 3/ γ Al 2O 3 cata lyst prepared with precursor (NH 4) 2MoS 4 was found to have the same catalytic behavoir as that prepared from K 2MoS 4. XRD measurements indicate the existence of a new Mo S K phase ( 2 θ = 29 8° and 30 8°) in the catalyst both of MoS 2/K +/ γ Al 2O 3 promoted by weak basic potassium salts (K 2CO 3 and KF) and of K 2MoS 4/ γ Al 2O 3 respectively.
【Key words】 Mo S based catalyst; H 2S containing syngas; methanthiol; preparation;
- 【文献出处】 应用化学 ,CHINESE JOURNAL OF APPLIED CHEMISTRY , 编辑部邮箱 ,1999年04期
- 【分类号】TQ426.94
- 【被引频次】8
- 【下载频次】148