公开(公告)号：US20230323242A1

公开(公告)日：2023-10-12

申请号：US18297210

申请日：2023-04-07

Applicant: Neste Oyj

Inventor： Tuula LEHTIMAA ,  Hemanathan KUMAR ,  Annika MALM ,  Olli BYMAN ,  Ronny WAHLSTRÖM

IPC: C11B3/00 ,  C11B3/08

CPC classification number: C11B3/001 ,  C11B3/08 ,  C11B3/005

Abstract: The present invention relates to a method for reducing an amount of dissolved impurities in an oxygen containing renewable feedstock, the dissolved impurities being selected from impurities comprising phosphorus and impurities comprising at least one metal. The method comprises obtaining a net elementary charge of a first feedstock; mixing the first feedstock with an elementary charge balancing component to obtain the feedstock to be treated, whereby the feedstock to be treated has a net elementary charge which is closer to zero net elementary charge than the net elementary charge of the first feedstock; and subjecting the feedstock to be treated to a heat treatment at a temperature of 180-400° C. in order to precipitate compounds containing said phosphorus and said at least one metal.

公开(公告)号：US20230323214A1

公开(公告)日：2023-10-12

申请号：US18297196

申请日：2023-04-07

Applicant: Neste Oyj

Inventor： Olli BYMAN ,  Annika MALM ,  Ronny WAHLSTRÖM ,  Tuula LEHTIMAA ,  Hemanathan KUMAR

IPC: C10G3/00

CPC classification number: C10G3/40 ,  C10G3/42 ,  C10G3/50 ,  C10G3/60 ,  C10G2300/202 ,  C10G2300/205 ,  C10G2300/1018 ,  C10G2300/1014 ,  C10G2300/4006

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.

公开(公告)号：US20180010051A1

公开(公告)日：2018-01-11

申请号：US15545408

申请日：2016-02-09

Applicant: Neste Oyj

Inventor： Petri LINDQVIST ,  Tuula LEHTIMAA ,  Väinö SIPPOLA ,  Olli-Pekka LEHTINEN ,  Gerard FAAIJ

IPC: C10G3/00 ,  B01D3/14 ,  G01N23/201 ,  C11B1/04

CPC classification number: C10G3/46 ,  B01D3/14 ,  C10G3/50 ,  C10G2300/1014 ,  C10G2300/1018 ,  C11B1/04 ,  G01N23/201 ,  Y02P30/20

Abstract: This disclosure relates to the field of renewable oil compositions and to the use of renewable oil compositions for production of hydrocarbon compositions, which can be used for traffic fuels and other solutions. An exemplary composition contains free fatty acids and triglycerides, in a concentration of free fatty acids from 15 wt-% to 80 wt-% and a remainder being predominantly triglycerides. A method for producing hydrocarbons from a renewable oil feedstock, in which the feedstock which contains free fatty acids from 15 wt-% to 80 wt-%, and a remainder being predominantly triglycerides, is subjected to a pretreatment process followed by a hydrotreatment process for obtaining hydrocarbons.