| 초록 |
Recent world oil demand gradually increase compare to supply of light oil. Since Oil shock hit the world wide, necessity of self-sufficiency in oil brings interest of non-conventional upgrading technology in petroleum industry. Even many catalysts developed nowadays, heavy oil upgrading technologies are facing lots of problems. Typical problems are mass transfer limitation, catalyst deactivation, and loosing valid carbon by coke form. Those problems are occurred by one main reason that heavy fraction in oil dramatically increased. Asphalthene and resin are large enough to block entrance of commercial supported catalysts and that bring mass transfer limitation and deactivation. To avoid issue of texture properties of support and sustain advantages of using support, colloidal dispersed catalysts are suitable. In this study, using general petroleum catalysts sources, molybdenum and cobalt molybdenum were used as dispersed colloidal catalysts. |
