催化重整生成油选择性加氢脱烯烃催化剂NiO/Al2O3的研究

以氢氧化铝干胶为原料,采用等体积浸渍法制备了NiO/Al2 O3催化剂;以溴指数为3836 mgBr/(100 g)的催化重整生成油评价NiO/Al2 O3催化剂的选择性加氢脱烯烃性能.考察了载体焙烧温度和NiO负载量对NiO/Al2 O3催化剂选择性加氢脱烯烃性能的影响.结果表明:载体焙烧温度为650℃时,采用NiO...

STUDY ON NiO/Al2O3 CATALYST FOR SELECTIVE HYDROGENATION OF OLEFINS IN REFORMATE

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%.