Neste Oyj

Neste Oil Oyj

Annika Malm

Jukka-Pekka Pasanen

Reijo Tanner

Mervi Hujanen

Ronny Wahlström

Hemanathan Kumar

Olli Byman

Tuula Lehtimaa

Mervi Waddilove

Rami Piilola

Väinö Sippola

Ossi A Pastinen

Blanka Toukoniitty

Simo Laakso

Jarmo Halttunen

Miia Mujunen

Heidi Kahelin

Pia Bergström

Arto Heiska

Juha Apajalahti

Eero Pennala

Pia Bergstrom

Pia BERGSTRÖM

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.

Method for producing renewable hydrocarbons

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.

Method for reducing amount of dissolved impurities in a renewable feedstock

A process for producing free fatty acids from oil containing chlorophyll is disclosed. Exemplary processes include blending oil containing chlorophyll with fats, followed by hydrolysis and distillation.

Process for producing free fatty acids

Present invention relates to a novel process for purification of feedstock for further use as a source of fuel or chemicals.

Purification of feedstock by heat treatment

A method of purifying biomass-based lipid material, as disclosed includes providing a feed of biomass-based lipid material; optionally drying the feed; removing oxygen from the feed under reduced pressure; heat treating the feed at 180 to 300&#xb0; C. under reduced pressure to solidify at least part of phosphorous and/or metal containing impurities, simultaneously distilling off at least part of free fatty acids and low molecular weight nitrogen compounds, to obtain at least a fraction containing free fatty acids and low molecular weight nitrogen compounds, and heat treated biomass-based lipid material containing degraded phosphorous and/or metal containing impurities in solid form; and removing the solid degraded phosphorous and/or metal containing impurities from the second fraction.

Purification of biomass-based lipid material

The invention relates to a process for purification of oil by heat treatment in order to degrade phospholipids present in the non-purified oil.

Oil purification process

Present invention relates to a novel process for purification of lipid material for further use as such as e.g. a source of fuel or chemicals.

Method for purification of animal or vegetable fats

A method is disclosed for recovering lipids from microbial biomass, and for producing lipids. In the method, an aqueous suspension includes fermentation broth containing oleaginous yeast biomass which is subjected to hydrothermal treatment and lipids are recovered from the biomass by solvent extraction.

Method for recovering lipids from microbial biomass

The present invention relates to a process for producing enzymes and single cell oil. The process comprises that microorganisms capable of producing both single cell oil and enzymes are cultivated under conditions suitable for single cell oil production and enzyme production in a single cell oil production process. A microorganism culture comprising single cell oil and enzymes is obtained and at least part of the microorganism culture, of the supernatant and/or microorganism cells separated from the microorganism culture, of protein fraction enriched from the supernatant, and/or of protein fraction obtained from the cells is used as an enzyme preparation or as a source of enzymes. Single cell oil is recovered from the microorganism cells and used as biofuel, component of biofuel or as a starting material for biofuel production. Enzymes produced according to the process are used in the same or in another industrial process.

Process for producing enzymes

A method for recovering lipids from microbial biomass, the method including providing wet microbial biomass which contains lipids to extraction without disrupting the biomass cell walls, and subsequently, extracting the wet microbial biomass with a liquid extractant at elevated temperature of at least 170&#xb0; C. and elevated pressure. The combination of the temperature and pressure is such that the lipids in the cells are contacted with the extractant. Subsequently the extracted lipids are recovered from or with the extractant.

Method for lipid extraction from biomass

The present invention relates to a method for purification of lipid material originating from biological material. In the method the lipid material comprising acylglycerols and phosphorus impurities and at least one added nonpolar solvent and at least one added polar solvent is provided into a reaction zone whereby at least a two phase system comprising a nonpolar phase and a polar phase is formed. The phase system is heated in the closed reaction zone under mixing at a temperature from 150&#xb0; C. to 300&#xb0; C. and at a pressure wherein said solvents are in subcritical state, preferably of below 100 bar, dependent on the vapor pressure of the selected solvents, until the phosphorus impurity is removed from the polar phase. Subsequently, the nonpolar phase including the purified oil comprising acylglycerols is separated and recovered from said phase system.

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Helsinki, Finland

Annika Malm