【摘要】 采用热重、差热分析、FT-IR和X-射线衍射分析手段,对催化加氢催化剂MoS2的前躯物(NH4)2MoS4分段热分解和晶体结构等进行了热分解机理研究,还试验了催化热解性能。四硫代钼酸铵的热分解与热处理温度密切相关,350℃以上开始分解为具有催化活性的硫化钼。利用催化剂前躯物浸渍的煤样品,在氢气氛中550℃进行催化加氢热裂解实验,显示出其催化性能。更多还原

【Abstract】 The mechanism of the stepwise thermal decomposition and the crystal structure of ammonium tetrathiomolybdate（ATTM）,the precursor of a catalyst in hydropyrolysis,was studied with thermo-gravimetric analysis（TG）,FTIR,differential thermal analysis（DTA） and X-ray diffraction（XRD） techniques.A series of intermediates of ammonium tetrathiomolybdate were identified during the course of heating.The results indicate that there is a close correlation between thermal decomposition and temperature,and ammonium tetrathiomolybdate is decomposed to form the catalyst of MoS₂ at 350℃ in the hydrogen atmosphere.The catalyst performance is displayed with catalytic hydroprolysis of impregnated coal at 550℃.更多还原