Process for producing paraffinic hydrocarbons
View Patent ↗Process for producing paraffinic hydrocarbons, the process comprising the following steps: (a) contacting hydrogen and a feedstock comprising triglycerides, diglycerides, monoglycerides and/or fatty acids with a hydrogenation catalyst under hydrodeoxygenation conditions; and (b) contacting the whole effluent of step (a) with a hydroprocessing catalyst comprising sulphided Ni and sulphided W or Mo as hydrogenation components on a carrier comprising amorphous silica-alumina and/or a zeolitic compound under hydro-isomerization conditions.
1. Process for producing paraffinic hydrocarbons, the process comprising the following steps:
(a) contacting hydrogen and a feedstock comprising triglycerides, diglycerides, monoglycerides and/or fatty acids with a hydrogenation catalyst under hydro-deoxygenation conditions; and
(b) contacting the whole effluent of step (a) with a hydroprocessing catalyst comprising sulphided Ni and sulphided W or Mo as hydrogenation components on a carrier comprising amorphous silica-alumina and/or a zeolitic compound under hydro-isomerisation conditions.
2. A process according to claim 1 , wherein the feedstock comprises triglycerides.
3. A process according to claim 2 , wherein the catalyst of step (b) comprises sulphided Ni and sulphided W as hydrogenation components.
4. A process according to claim 2 , wherein the catalysts of step (a) and of step (b) have the same composition.
5. A process according to claim 4 , wherein steps (a) and (b) are carried out in a single reactor vessel in the same catalyst bed.
6. A process according to claim 2 , wherein the process is carried out in a single reactor vessel in a stacked catalyst bed configuration.
7. A process according to claim 1 , wherein the catalyst of step (b) comprises sulphided Ni and sulphided W as hydrogenation components.
8. A process according to claim 7 , wherein the catalysts of step (a) and of step (b) have the same composition.
9. A process according to claim 7 , wherein the process is carried out in a single reactor vessel in a stacked catalyst bed configuration.
10. A process according to claim 1 , wherein the catalysts of step (a) and of step (b) have the same composition.
11. A process according to claim 10 , wherein steps (a) and (b) are carried out in a single reactor vessel in the same catalyst bed.
12. A process according to claim 10 , wherein the process is carried out in a single reactor vessel in a stacked catalyst bed configuration.
13. A process according to claim 1 , wherein the process is carried out in a single reactor vessel in a stacked catalyst bed configuration.
14. A process according to claim 13 , wherein the reactor is adiabatically operated.
15. A process according to claim 1 , wherein the temperature in step (a) is in the range of from 250 to 380° C.
16. A process according to claim 1 , wherein the temperature in step (b) is in the range of from 300 to 450° C.
17. A process according to claim 1 , wherein the total pressure in steps (a) and (b) is in the range of from 20 to 160 bar (absolute).
18. A process according to claim 1 , wherein the feedstock comprises vegetable oil, animal fat, fish oil, or a combination of one or more thereof.
19. A process according to claim 18 , wherein the feedstock comprises one or more vegetable oils.
20. A process according to claim 1 , wherein the effluent of step (b) is separated in a gaseous effluent and a liquid effluent comprising paraffinic hydrocarbons boiling in the diesel range.