Abstract: The DHT-1 hydrorefining catalysts for diesel oil hydrogenation based on γ-Al2O3 modified by carbon black is introduced. The envaluation results showed that its hydrogenation activity was a little better than the reference catalyst. When combining it with a kind of hydrodewaxing catalyst for processing Daqing diesel oil，the tests results showed that the yield of diesel fuel was more than 93.0 wt%，the sulfur content was lower than 50.0µg/g，the freezing point was lower by 19.2℃，and the cetane number increased by 1.0 to 3.4. All of these show that the DHT-1 catalyst can be well matched with the hydrodewaxing catalysts.

摘要： 介绍了一种以炭黑改性的γ-Al2O3为载体的柴油加氢降凝预精制催化剂DHT-1，活性评价结果显示其加氢活性略好于参比剂。该催化剂与柴油异构降凝剂组合活性考察结果为：以大庆焦化柴油为原料，柴油收率在93.0％以上，产品硫含量小于50.0 µg/g，凝点降低最高达19.2个单位，十六烷值提高1.0～3.4个单位。以上结果表明，DHT-1能与异构降凝剂较好地匹配使用。