化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2013年
7期
1564-1569
,共6页
加氢处理催化剂%浸渍技术%水热沉积%原位晶化%化学气相沉积
加氫處理催化劑%浸漬技術%水熱沉積%原位晶化%化學氣相沉積
가경처리최화제%침지기술%수열침적%원위정화%화학기상침적
hydrotreating catalyst%impregnation method%hydrothermal deposition method%in situ crystallization%chemical vapor deposition
从过渡金属硫化物催化剂活性相理论出发,认为在加氢催化剂制备过程中保证活性组分的适度分散和金属-载体之间适度的相互作用能提高加氢催化剂的性能。本文针对加氢处理催化剂的制备技术,综述了添加有机助剂、平衡吸附法、浆液浸渍法等浸渍改进技术以及水热沉积法、原位晶化法、化学气相沉积法等新型的制备技术,并介绍了相关的国内外研究进展。分析指出有机助剂能与载体、金属作用,进而改变金属在载体表面的存在形态,有利于高活性 CoMoS 相的生成;水热沉积法和原位晶化法能够使活性组分在载体上均匀吸附沉积,从而实现活性组分在载体上的分散,并形成堆积程度更高的高活性Ⅱ型活性中心。
從過渡金屬硫化物催化劑活性相理論齣髮,認為在加氫催化劑製備過程中保證活性組分的適度分散和金屬-載體之間適度的相互作用能提高加氫催化劑的性能。本文針對加氫處理催化劑的製備技術,綜述瞭添加有機助劑、平衡吸附法、漿液浸漬法等浸漬改進技術以及水熱沉積法、原位晶化法、化學氣相沉積法等新型的製備技術,併介紹瞭相關的國內外研究進展。分析指齣有機助劑能與載體、金屬作用,進而改變金屬在載體錶麵的存在形態,有利于高活性 CoMoS 相的生成;水熱沉積法和原位晶化法能夠使活性組分在載體上均勻吸附沉積,從而實現活性組分在載體上的分散,併形成堆積程度更高的高活性Ⅱ型活性中心。
종과도금속류화물최화제활성상이론출발,인위재가경최화제제비과정중보증활성조분적괄도분산화금속-재체지간괄도적상호작용능제고가경최화제적성능。본문침대가경처리최화제적제비기술,종술료첨가유궤조제、평형흡부법、장액침지법등침지개진기술이급수열침적법、원위정화법、화학기상침적법등신형적제비기술,병개소료상관적국내외연구진전。분석지출유궤조제능여재체、금속작용,진이개변금속재재체표면적존재형태,유리우고활성 CoMoS 상적생성;수열침적법화원위정화법능구사활성조분재재체상균균흡부침적,종이실현활성조분재재체상적분산,병형성퇴적정도경고적고활성Ⅱ형활성중심。
Based on the active phase theory for transition metal sulfide catalysts,it was concluded that the performance of hydrotreating catalyst can be improved by increasing the dispersion of active species and by modifying the metal-support interaction in the preparation of hydrotreating catalyst. The improved technologies in the impregnation method,such as addition of organic additives,equilibrium deposition filtration,and slurry impregnation,and the novel preparation technologies,such as hydrothermal deposition method,in situ crystallization,and chemical vapor deposition,were reviewed. And the related research progresses were introduced. Organic additives could interact with support and metal,and then cause the morphology of metal change in the support surface. Therefore,more active type Ⅱ CoMoS phases can be formed. Hydrothermal deposition method and in situ crystallization method could employed to produce catalyst with better dispersion and higher stacking degree of active metal species.