采用炭黑粉为扩孔剂，制备出双重孔径分布的氧化铝载体。并考察了各种制备条件下以炭黑粉为扩孔剂的载体的孔径分布。试验表明，炭黑粉的种类和用量是决定载体孔分布的主要因素。采用适量碱性物质中和的方法能明显地增大载体的孔容和扩大孔径。 The carbon black powder is used as a hole-expanding agent to prepare the alumina carrier with double pore size distribution. The pore size distribution of the carrier with carbon black powder as reaming agent under various preparation conditions was investigated. Experiments show that the type and amount of carbon black powder is the main factor that determines the pore distribution of the carrier. Using appropriate amount of alkaline substances can obviously increase the pore volume of the carrier and enlarge the pore size.