微波辅助双功能渣油加氢催化剂的研究  

STUDY OF MICROWAVE-ASSISTED DUAL FUNCTIONAL RESIDUE HYDROGENATION CATALYST

作　　者：刘文洁[1] 张庆军[1] 隋宝宽[1] 袁胜华[1] 

机构地区：[1]中国石化抚顺石油化工研究院,辽宁抚顺113001

出　　处：《石油炼制与化工》2016年第9期57-61,共5页Petroleum Processing and Petrochemicals

摘　　要：利用微波选择性加热的特性,在制备过程中加入微波敏化剂制得2种微波辅助双功能渣油加氢催化剂C-Fe和C-Si。对比微波辅助双功能加氢催化剂与相同活性金属含量的商业催化剂,用X射线衍射、氮吸附-脱附、红外光谱、氢气程序升温还原、场发射透射电镜等方法分析了催化剂的物相结构、孔结构、酸性质和酸强度分布、还原性、微观形貌等。在相同的微波反应条件下进行微波辅助渣油加氢反应。结果表明:催化剂在C-Fe制备的焙烧阶段,微波敏化剂Fe_3O_4氧化生成Fe_2O_3;C-Fe中的Fe_2O_3和C-Si中的SiC均未与载体以及活性金属发生化学反应;包含微波敏化剂的催化剂孔体积减小,中低温B酸量增加,C-Fe的还原峰面积增大,且还原峰向高温方向移动;微波辅助催化剂中敏化剂被Al_2O_3包裹;C-Si的微波辅助脱硫性能与商业催化剂相当,C-Fe的微波辅助加氢脱硫性能较好。Using the microwave heating possesses selective characteristics, two kinds of microwaveassisted dual functional residue hydrogenation catalysts C-Fe and C-Si was prepared by adding the microwave sensitizer during the preparation of catalysts. The crystal phase, pore structure, acidity, acid strength distribution, reducibility and micro-morphology of the catalysts were characterized by X-ray diffraction, nitrogen adsorption-desorption, infrared spectroscopy, hydrogen temperature programmed reduction and field emission TEM techniques. The microwave-assisted catalytic hydrogenation of residue was conducted under the same microwave conditions to compare with the commercial catalyst. It is found that Fe203 is formed in the burning stage of the catalyst C-Fe. However, no reactions of the support or active metals with formed Fe2O3 or SiC in C-Si catalyst is observed. The pore volume of the catalyst containing microwave sensitizer is decreased, while the content of Bronsted acid at mid-low temperature is increased. The reduction peak area of C-Fe is increased and the peak moves to higher temperature. The TEM results indicate that the microwave sensitizer was wrapped by alumina in the prepared residue hydrogenation catalyst. The C-Si has the equivalent impurity removal activity under microwave-assisted conditions with the commercial catalyst, while the performance of the catalyst C-Fe is the best of the three.

关 键 词：微波 微波敏化剂 微波辅助双功能加氢催化剂 渣油加氢 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]