Microsoft Word master thesis report fina doc

4
 cut .................................................................................................................................. 43
4.2.4. Hydrogen make-up .................................................................................................................... 43
4.2.5. Catalyst ....................................................................................................................................... 43
4.3.
P
RODUCTS CHARACTERISTICS
........................................................................................................ 43
4.4.
N
ORMAL OPERATIONS
.................................................................................................................... 44
4.4.1. Selective hydrogenation of C
3
................................................................................................... 44
4.4.2. Selective hydrogenation of C
4
................................................................................................... 45
4.4.3. Gasoline hydrogenation ............................................................................................................ 46
4.4.4. Influents / effluents scheme ...................................................................................................... 47
4.5.
I
NTERMITTENT OPERATIONS
........................................................................................................... 49
4.5.1. Catalyst reduction / reactivation / hot hydrogen stripping .................................................... 49
4.5.2. Catalyst regeneration ................................................................................................................ 50
4.5.3. Catalysts sulfurization in the second reactor of gasoline hydrogenation unit ..................... 53
4.6.
E
FFLUENTS CHARACTERIZATION
.................................................................................................... 53