关键词: 催化重整生成油, NiO/Al₂O₃催化剂, 选择性加氢

Abstract: The NiO/Al₂O₃ catalyst was prepared by equal volume impregnation using aluminum hydroxide dry glue as the raw material, and the catalytic performance of NiO/Al₂O₃ catalyst for selective hydrogenation of alkenes was investigated by using reformmate withthe bromine index of 3 836 mgBr/(100 g) as the raw material. The effects of carrier calcination temperature and NiO loading on the performance of NiO/Al₂O₃ catalysts were investigated. The results show that when the carrier calcination temperature is 650 ℃, and the catalyst with 25% NiO loading (w) is used, under the conditions of a reaction pressure of 1.0 MPa, a volume space velocity of 8 h^-1,a volume ratio of hydrogen to oil of 25:1 and a reaction temperature of 120 ℃, the oil bromine index is less than 100 mgBr/(100 g) , and the aromatics loss rate is less than 0.75%.

Key words: reformate, NiO/Al₂O₃ catalyst, selective hydrogenation