| 초록 |
Various parameters in the catalytic hydroconversion of triglycerides were investigated for maximizing the biojet fuel production. The results demonstrated that the two-step process composed of separate hydrotreating/hydrocracking steps is more advantageous than the single-step process in terms of high biojet fuel yield, suppressed production of aromatic compounds, and long catalyst lifetime. In the two-step process, the diffusion characteristics of the multibranched hydrocarbon in the hydrocracking catalysts could be correlated with the biojet fuel yields and the iso/n-paraffin ratios. Consequently, Pt supported on nanocrystalline BEA zeolite produced the largest biojet fuel yield with high iso-paraffin content as a result of suppressed overcracking. |
