Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO2020016405 - PURIFICATION D'UNE MATIÈRE ORGANIQUE RECYCLÉE ET RENOUVELABLE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLA1MS

1. A method of purifying a recycled or renewable organic material (10), wherein the recycled or renewable organic material (10) comprises more than 1 ppm silicon as silicon compounds, comprising the steps of

(a) providing the recycled or renewable organic material (10);

(b) heat treating (20) the recycled or renewable organic material (10) to form a heat treated recycled or renewable organic material, wherein the at least part of silicon compounds present in the recycled or renewable organic ma terial are converted to volatile silicon compounds, and

(c) evaporating volatile silicon compounds (30) from the heat treated recycled or renewable organic material,

to obtain

(i) a vapor fraction (32) comprising the major part of volatile silicon compounds, and (ii) a heat treated recycled or renewable organic material frac tion (31) comprising less silicon than the recycled or renewable organic material provided in step (a).

2. A method as claimed in claim 1, wherein the method further com prises (d) hydrotreating (40) the heat treated recycled or renewable organic ma terial fraction (31) in a presence of a hydrotreating catalyst to obtain purified re cycled or renewable organic material (41).

3. A method as claimed in claim 2, wherein the purified recycled or re newable organic material (41) comprises less silicon than the recycled or renew able organic material provided in step (a) preferably recycled or renewable or ganic material comprises less than 20%, more preferably less than 10%, even more preferably less than 5%, of the original silicon content of the recycled or renewable organic material provided in step (a).

4. A method as claimed in claim 2 or 3, wherein hydrotreating (40) step (d) takes place under continuous hydrogen flow.

5. A method as claimed in claim 4, wherein in step (d) the continuous hydrogen flow has H2/feed ratio from 500 to 2000 n-L/L, preferably from 800 to 1400 n-L/L.

6. A method as claimed in any one of claims 2 to 5, wherein step (d) is performed at a temperature from 270 to 380°C, preferably from 275 to 360°C, more preferably from 300 to 350°C.

7. A method as claimed in any one of claims 2 to 6, wherein step (d) is performed under pressure from 4 to 20 MPa.

8. A method as claimed in any one of claims 2 to 7, wherein the hy drotreating catalyst in step (d) comprises at least one component selected from 1UPAC group 6, 8 or 10 of the Periodic Table.

9. A method as claimed in any one of claims 2 to 8, wherein the hy drotreating catalyst in step (d) is a supported Pd, Pt, Ni, NiW, NiMo or a CoMo cat alysts and the support is zeolite, zeolite-alumina, alumina and/or silica, prefera bly N1W/AI2O3, N1M0/AI2O3 or C0M0/AI2O3.

10. A method as claimed in claim 2, wherein step (d) is accomplished by (dl) hydrodeoxygenating (HDO) the heat treated recycled or renewable organ ic material fraction (31).

11. A method as claimed in claim 10, wherein step (dl) is performed in a presence of a HDO catalyst at 290 to 350°C under pressure from 4 to 20 MPa and under continuous hydrogen flow.

12. A method as claimed in claim 10, wherein step (dl) is accom plished by (dl) hydrodeoxygenating (HDO) the heat treated recycled or renewa ble organic material fraction (31) in a presence of a HDO catalyst at a temperature from 290 to 350°C under pressure from 4 to 20 MPa and under continuous hy drogen flow to obtain purified recycled or renewable organic material (41) com prising less than 1 wt% of oxygen and less than 20%, preferably less than 10 %, more preferably less than 5%, of the original silicon content of the recycled or renewable organic material (10) provided in step (a).

13. A method as claimed in claim 11 or 12, wherein in step (dl) the HDO catalyst is sulfided NiW, NiMo or CoMo catalyst.

14. A method as claimed in any one of claim 11 to 13, wherein in step (dl) the continuous hydrogen flow has H2/feed ratio from 500 to 2000 n-L/L, preferably from 800 to 1400 n-L/L.

15. A method as claimed in any one of claims 1 to 14, wherein step (b) is performed at 180 to 325°C, preferably at 200 to 300°C, more preferably at at 240 to 280°C.

16. A method as claimed in any one of claims 1 to 15, wherein the resi dence time, is from 1 to 300 min, preferably from 5 to 90 min, more preferably from 20 to 40 min in step (b).

17. A method as claimed in any one of claims 1 to 16, wherein the pressure in step (b) is from 500 to 5000 kPa, preferably from 800 to 2000 kPa.

18. A method as claimed in any one of claims 1 to 17, wherein step (c) is performed at from 145 to 250°C, preferably from 150°C to 225°C, more prefer ably at from 160°C to 200°C, even more preferably at 160 to 180°C.

19. A method as claimed in any one of claims 1 to 18, wherein the pressure in step (c) is 0.1 to 5 kPa, preferably from 0.1 to 3 kPa.

20. A method as claimed in any one of claim 1 to 19, wherein in step (c) from 1 to 10 wt%, preferably from 1 to 8 wt%, more preferably from 1 to 5 wt%, even more preferably from 1 to 3 wt%, of the heat treated recycled or re newable organic material is evaporated.

21. A method as claimed in any one of claim 1 to 20, wherein water is added to the heat treated recycled or renewable organic material so that the wa ter content of the heat treated recycled or renewable material before evaporation step (c) is from 1 to 5 wt%, preferably from 1.5 to 4 wt%, more preferably from 2 to 3 wt%.

22. A method as claimed in any one of claims 1 to 21, wherein after step (c) silicon content of the heat treated recycled or renewable organic material fraction (31) is less than 50 %, preferably less than 30%, of the original silicon content of the recycled or renewable organic material provided in step (a).

23. A method as claimed in any one of claims 1 to 22, wherein the re cycled or renewable organic material (10) is selected from a group consisting of plant based fats and oils, animal based fats and oils, fossil waste-based oils, waste oils, algal oils and microbial oils.

24. A method as claimed in any one of claims 1 to 23, wherein the re cycled or renewable organic material (10) is selected from a group consisting of crude tall oil (CTO), tall oil pitch (TOP), crude fatty acid (CFA), tall oil fatty acid (TOFA) and distilled tall oil (DTO); more particularly the recycled or renewable organic material is crude tall oil (CTO) or tall oil pitch (TOP).

25. A process for producing recycled or renewable hydrocarbons, comprising steps of

(x) purifying the recycled or renewable organic material as claimed in any one of claims 1 to 24, and

(y) subjecting the purified recycled or renewable organic material to a oil refinery conversion process, wherein the oil refinery conversion process com prises altering the molecular weight of the feed, removal of heteroatoms from the feed, altering the degree of saturation of the feed, rearranging the molecular

structure of the feed, or any combination thereof to obtain at least one recycled or renewable hydrocarbon.

26. A process as claimed in claim 25 wherein step (y) is hydrocracking.

27. A process as claimed in claim 26, wherein step (y) is performed in a mild hydrocracking (MHC) refinery unit.

28. A process as claimed in claim 26 or 27, wherein step (y) is per formed in a presence of a hydrocracking catalyst.

29. A process as claimed in claim 25 wherein step (y) is steamcracking.

30. A process as claimed in claim 25 wherein step (y) is isomerization. 31. A process as claimed in claim 25 wherein step (y) is hydrotreating.

32. A process as claimed in claim 25 wherein step (y) is thermal cata lytic cracking.

33. A process as claimed in claim 25 wherein step (y) is fluid catalytic cracking.