| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.924 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Effects on Organic Solvents on the Upgrading of Vacuum Residue |
| 초록 |
This study is focused on the effect of solvents having different H-donor index, asphaltene solubility and alkyl substitution. In order to confirm the solvent effect on the VR(vacuum residue) conversion the reaction tests were performed at 673K 10.0 MPa (N2 or H2) in the presence of different H-donor index solvents. As a result, the precipitate yield was lowered with following the order; blank (42.2 wt%) ＞ naphthalene (27.5 wt%) ≥ 1-methyl naphthalene (22.6 wt%) ＞ decalin (14.4 wt%) ＞ tetralin (3.4 wt%). The formation of precipitate was formal highly affected by H-donor index. Moreover, asphaltene solubility enhanced the fluidity of VR and reduced phase separation during the VR conversion. As a result, the coke formation followed the order: tridecane(32.7wt%) ＞ heptane(34.2wt%) ＞ hexane(36.4wt%). These results demonstrated that there is good qualitative agreement between coke reduction performance and the asphaltene solubility. The solvent of alkyl substitution produced more precipitate. 1-methyl naphthalene has similar H-donor index as decalin. However, it generated free radicals that can lead to increased coke formation about 50%. we verified that VR conversion was highly enhanced by h-donor solvents with high asphaltene solubility and low alkyl-substitution. |
| 저자 |
김성호1, 김기덕1, 이용걸1, 서혜련2, 고재현2, 김도완2, 오승훈2
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| 소속 |
1단국대, 2SK innovation |
| 키워드 |
Vaccum residue; 감압잔사유; H-donor; Slurry bed process
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| E-Mail |
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| 원문파일 |
초록 보기 |
