关键词: 载体, 沥青质, 贯穿性孔道, 孔分布, 纳米, 氧化铝

Abstract: An alumina carrier was synthesized by the method of secondary self-assembly technique. This prepared alumina carrier holds penetrating pore structure with pore size distribution concentrated at 32~95 nm, which is favourable for asphaltene micelles to diffuse. The characterization results show that said alumina carrier possesses a pore volume of 0.852 mL/g, a specific surface area of 195 m2/g, an average pore size of 41.9 nm, a most probable pore diameter of 62.5 nm, a pore-throat ratio of 2.7 and the pore volume of pores in the range of 32~95 nm occupied 52.33% of the total pore volume.

Key words: carrier, asphaltene, penetrating pore channel, pores distribution, nanometer, alumina