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OALib Journal期刊
ISSN: 2333-9721
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金属载体结合方式对镍钨催化剂费托合成蜡加氢裂化性能的影响
, PP. 691-697
Keywords: 加氢裂化,催化剂,费托合成蜡,柴油,选择性
Abstract:
？以ni/w为加氢金属组分,hy/al2o3为载体,采用浸渍法制备三种金属-载体不同结合方式的加氢裂化催化剂,研究了结合方式对催化剂酸性、加氢性能及ft合成蜡加氢裂化性能的影响。调整金属-载体的结合方式可明显调节催化剂加氢性能与裂解性能之间的平衡,ni/w预先浸渍在hy分子筛上提高了催化剂的加氢性能,降低了载体的酸性。结果表明,高加氢性能-弱酸性的匹配有利于抑制f-t蜡的二次裂解,提高柴油选择性。而ni/w均匀浸渍在hy/al2o3载体上可获得相对均衡的加氢/裂解性能匹配,催化剂具有较高的反应活性及灵活的反应调控性。
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