The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2023
Filed:
Jul. 19, 2019
Neste Oyj, Espoo, FI;
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;
Andrea Perez Nebreda, Porvoo, FI;
NESTE OYJ, Espoo, FI;
Abstract
A method is disclosed of purifying a recycled or renewable organic material, wherein the recycled or renewable organic material includes more than 1 ppm silicon as silicon compounds. Exemplary steps include (a) providing the recycled or renewable organic material; (b) heat treating the recycled or renewable organic material 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 recycled or renewable organic material fraction containing less silicon than the recycled or renewable organic material provided in step (a).