| 초록 |
The manufacturing and production of premium cokes have been issued to remove nitrogen species for upgrading their quality. APPI FT-ICR MS was applied to elucidate a detail knowledge for nitrogen formula at the molecular level. The big data with 15,000 chemical formula were classified with single(CcHh-Nn), binary(CcHh-NnOo, -NnSs), and ternary(CcHh-NnOoSs) hetero nitrogen to study the characteristics of N-species, according to the as received coal tar samples. In addition, a relative abundance of DBE versus carbon and m/z as well as the DBE distribution were studied in each N-classes. These results will be further beneficial to investigate over the behaviors of N removal process(hydrodenitrogenation, oxidative denitrogenation, and thermal-denitrogenation) at the molecular level. |
