Development of Zeolite-Based Catalyst for Resid Hydrocracking

摘要

Japan Cooperation Center, Petroleum (JCCP) has been developing heavy oil upgrading technology since 1993, and developed many promising catalysts. Among them is a zeolite-based new catalyst. In resid hydrocracking, following three features are required, i.e. appropriate acidity for mild cracking, mesopore for the diffusion of huge molecules such as asphaltene to active sites, and high hydrogenation activity to avoid coking (1-4). A zeolite modification method with titanium sulfate was devised to satisfy those requirements at the same time. Its performance was evaluated on batch-type autoclaves with Arabian-Heavy atomospheric resid (AH-AR), and its excellent peformance as resid hydrocracking catalyst was confirmed (5). This paper discusses its optimization study with catalyst characterization and pilot plant test results.