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:
Nov. 05, 2024
Filed:
Apr. 07, 2023
Neste Oyj, Espoo, FI;
Olli Byman, Porvoo, FI;
Annika Malm, Porvoo, FI;
Ronny Wahlström, Porvoo, FI;
Tuula Lehtimaa, Porvoo, FI;
Hemanathan Kumar, Porvoo, FI;
NESTE OYJ, Espoo, FI;
Abstract
The present invention relates to a method for producing renewable hydrocarbons from an oxygen containing renewable feedstock, the feedstock comprising dissolved impurities selected from impurities comprising phosphorus and impurities comprising at least one metal, the feedstock further comprising at least one of triglycerides and free fatty acids. The method comprises obtaining a net elementary charge based on phosphorus and the at least one metal of a first feedstock; mixing the first feedstock with an elementary charge balancing component to obtain the feedstock to be purified, which feedstock to be purified has a net elementary charge within a range of from −5 to 15 mmol elementary charge/kg of the feedstock to be purified; subjecting the feedstock to be purified to heat treatment at a temperature of 180-400° C. in order to precipitate compounds containing said phosphorus and said at least one metal; removing formed precipitate compounds comprising said at least one metal and said phosphorus to obtain a purified feedstock; and subjecting the purified feedstock to a hydrotreatment using a catalyst sensitive to at least one of said impurities.