hydrotraitement
| valorisant
| hydrotraitement | |
| oil chem. | hydrogen treatment; hydrotreating; hydrotreatment |
| valoriser | |
| tech. coal. | upgrade |
| |||
| hydrogen treatment; hydrotreating; hydrotreatment | |||
|
hydrotraitement : 4 phrases in 3 subjects |
| Chemistry | 1 |
| Coal | 2 |
| Oil / petroleum | 1 |