US 11,655,422 B2
Purification of recycled and renewable organic material
Jouni Touronen, Porvoo (FI); Meri Hovi, Porvoo (FI); Antti Pasanen, Porvoo (FI); Salla Likander, Porvoo (FI); Sami Toppinen, Porvoo (FI); Pekka Aalto, Porvoo (FI); Kari Jansson, Porvoo (FI); Marina Lindblad, Porvoo (FI); Mats Käldström, Porvoo (FI); Kaisa Lamminpää, Porvoo (FI); and Andrea Perez Nebreda, Porvoo (FI)
Assigned to NESTE OYJ, Espoo (FI)
Appl. No. 17/261,736
Filed by NESTE OYJ, Espoo (FI)
PCT Filed Jul. 19, 2019, PCT No. PCT/EP2019/069482
§ 371(c)(1), (2) Date Jan. 20, 2021,
PCT Pub. No. WO2020/016405, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 20185651 (FI), filed on Jul. 20, 2018.
Prior Publication US 2021/0292656 A1, Sep. 23, 2021
Int. Cl. C10G 67/02 (2006.01); C10G 69/06 (2006.01); C10G 3/00 (2006.01); C10G 65/02 (2006.01)
CPC C10G 3/50 (2013.01) [C10G 3/40 (2013.01); C10G 65/02 (2013.01); C10G 67/02 (2013.01); C10G 69/06 (2013.01); C10G 2300/1003 (2013.01); C10G 2300/1014 (2013.01); C10G 2300/1018 (2013.01); C10G 2300/202 (2013.01); C10G 2300/4006 (2013.01); C10G 2300/4012 (2013.01)] 33 Claims
 
1. A method of purifying a recycled or renewable organic material, wherein the recycled or renewable organic material contains more than 1 ppm silicon as silicon compounds, the method comprising:
(a) providing the recycled or renewable organic material;
(b) heat treating the recycled or renewable organic material in a pressure from 500 to 5000 kPa 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 material are converted to volatile silicon compounds; and
(c) evaporating volatile silicon compounds from the heat treated recycled or renewable organic material;
to obtain
(i) a vapor fraction containing a major part of volatile silicon compounds, and (ii) a heat treated recycled or renewable organic material fraction containing less silicon than the recycled or renewable organic material provided in step (a).