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Process of producing high-quality lube base oil by using refined oil fraction of waste lubricant |
Young Wook Jeon, Jin Hee Ok, Kyung Seok Noh |
2025-02-18 |
| 11873456 |
Process of producing high-quality lube base oil by using refined oil fraction of waste lubricant |
Young Wook Jeon, Jin Hee Ok, Kyung Seok Noh |
2024-01-16 |
| 10544374 |
Process for reducing haze in heavy base oil and hydroisomerization catalyst system having reduced haze |
Do Kyoung Kim, Seung Woo Lee, Yoon Kyung Lee, Seon Ju Lim |
2020-01-28 |
| 10406510 |
Catalyst containing metal cluster in structurally collapsed zeolite, and use thereof |
Min Kee CHOI, Ju Hwan Im, Do Kyoung Kim, Tae Jin Kim, Seung Hoon Oh +1 more |
2019-09-10 |
| 10385277 |
Catalyst for producing hydrogenated biodiesel and method of producing the same |
Sang Il Lee, Hee Jung Jeon, Sang Jun Ju, Jae Wook Ryu, Gyung Rok Kim +1 more |
2019-08-20 |
| 10155219 |
Catalyst containing metal cluster in structurally collapsed zeolite, and use thereof |
Min Kee CHOI, Ju Hwan Im, Do Kyoung Kim, Tae Jin Kim, Seung Hoon Oh +1 more |
2018-12-18 |
| 9782760 |
Method of preparing an activated EU-2 zeolite |
Yoon Kyung Lee, Seung Woo Lee, Jae Suk Choi, Tae Jin Kim, Seon Ju Lim |
2017-10-10 |
| 9687828 |
Activated EU-2 zeolite and use thereof |
Yoon Kyung Lee, Seung Woo Lee, Jae Suk Choi, Tae Jin Kim, Seon Ju Lim |
2017-06-27 |
| 9550947 |
Hydrocracking process of heavy hydrocarbon distillates using supercritical solvent |
Jae Wook Ryu, Il Yong Jeong, Gyung Rok Kim, Sung-Bum Park, Eun Kyoung Kim +4 more |
2017-01-24 |
| 9283553 |
Hydrocracking catalyst for preparing valuable light aromatic hydrocarbons from polycyclic aromatic hydrocarbons |
Jae Hyun Koh, Sang Il Lee, Seung Woo Lee, Seung Hoon Oh, Jae Suk Koh +5 more |
2016-03-15 |
| 9127215 |
Method for reducing the amount of organic acids in a hydrocarbon oil fraction |
Jin Kyu Choi, Cheol-Woo Park, Tae Won Uhm, Il Yong Jeong, Ha Na Song +5 more |
2015-09-08 |
| 8980082 |
Method of simultaneously removing sulfur and mercury from hydrocarbon material using catalyst by means of hydrotreating reaction |
Do Kyoung Kim, Sang Il Lee, Seung Hoon Oh, Woo Kyung Kim, Han Seung Pan +3 more |
2015-03-17 |
| 8962900 |
Method for producing valuable aromatics and light paraffins from hydrocarbonaceous oils derived from oil, coal or wood |
Hong Chan Kim, Yong Seung Kim, Sang Hun Oh, Hyuck-Jae Lee, Jae Suk Koh +9 more |
2015-02-24 |
| 8911613 |
Method of simultaneously manufacturing high quality naphthenic base oil and heavy base oil |
Kyung Seok Noh, Jae Wook Ryu, Do Hyoun Kim, Gyung Rok Kim, Seung Woo Lee +4 more |
2014-12-16 |
| 8912377 |
Method for producing high value aromatics and olefin from light cycle oil produced by a fluidized catalytic cracking process |
Cheol Joong Kim, Tae Jin Kim, Sung Won Kim, Sang Hun Oh, Sam Ryong Pakr +7 more |
2014-12-16 |
| 8834706 |
Method for preparing lubricating base oils by using vacuum distilled deasphalted oil |
Kyung Seok Noh, Jae Wook Ryu, Do Hyoun Kim, Gyung Rok Kim, Seung Woo Lee +4 more |
2014-09-16 |
| 8585889 |
Process for manufacturing high quality naphthenic base oils |
Chang Kuk Kim, Jee Sun Shin, Kyung Seok Noh, Ju Hyun Lee, Byoung In Lee +5 more |
2013-11-19 |
| 8506892 |
Exhaust gas purifying device for diesel engine |
Yong Woo Kim, Joon-Seok Min, Seong Ho Lee, Hong Seok Jung, Yun-Guen Cho +4 more |
2013-08-13 |
| 5968228 |
Process for preparing cobalt metals using nitrogen reductant |
Son-Ki Ihm, Dong Keun Lee |
1999-10-19 |
