关键词: 脱沥青油, 糠醛, 溶剂抽提, 催化裂化, 抽余油

Abstract: In this paper, pilot plant riser reactor was used to evaluate the catalytic cracking performances of desaphalted oil (DAO) and its raffinate oils (denoted as feed A and feed B), which were obtained by extracting DAO with furfural under the conditions of furfural/DAO mass ratio of 2, extraction temperature of 80 ℃ and 85 ℃, respectively. Experimental results indicated that compared with DAO, both feed A and feed B exhibited improved catalytic cracking performances: higher heavy oil conversion and light oil yield, lower yields of coke and slurry oil, besides, the properties of cracking products from feed A and feed B are also better in some ways.

Key words: deasphalted oil, furfural, solvent deasphalting process, catalytic cracking, raffinate oil