Neste Oy

Neste Oyj

Taminco Finland

Perstorp Specialty Chemicals Ab

Niacet B.v.

Neste Chemical Oy

Jukka Hietala

Pekka Knuuttila

Virpi Rämö

Anja Leminen

Juhana Ahola

Esko Tirronen

Lars Peter Lindfors

Suvi P Haukka

Jukka Myllyoja

Marina Lindblad

Marja Tiitta

Hilkka R Knuuttila

Outi Krause

Harri Hokkanen

Tuomo Suntola

Eeva-Liisa Lakomaa

Leila Lahtinen

Hannu Nousiainen

Erkki Paatero

Dominicus Brendler

Antero Laitinen

Angeliki Anagnostou

Arla Kyt&ouml;kivi

Jeroen Martens

Rami Haakana

Peter Van Kuik

Esa Nummi

Tom Granstrom

Anja Linna

Arla Kytokivi

Ari Lehtonen

Reijo Sillanpaa

Henk Jan Van Lent

A process for combined renewable 1-decene and renewable carboxylic diacid production from a fatty acid ester containing feedstock, wherein the feedstock is first subjected to metathesis reaction conditions, recovery of 1-decene and then to microbial oxidation to yield diacids in a fermentation broth. Diacids of unusual carbon chains lengths are thereby obtainable.

Renewable chemical production engaging metathesis and microbial oxidation

An integrated production plant system includes, at one production site at least two plants of different kinds selected from a renewable paraffinic fuel plant to produce renewable paraffinic fuel in a renewable paraffinic fuel process, a renewable fatty acid alkyl ester (FAAE) fuel plant to produce renewable FAAE fuel in a renewable FAAE process, a renewable base oil plant to produce renewable base oil in a renewable base oil process, and a renewable chemical plant to produce renewable chemical in a renewable chemical process. Each of the processes is provided with a respective renewable feed, where the feed of each of the processes originates from a common renewable system feed, and the feed to at least one of the processes is altered for example by directing at least part of the feed of at least one of the processes to another of the processes.

Flexible integrated production plant system and method

Herein is provided a process for producing renewable products, such as alkenes, from a feedstock of biological origin. The process includes subjecting a feedstock including fatty acid glycerides and optionally free fatty acids, wherein at least one hydrocarbon chain is unsaturated, to esterification reaction in the presence of an alcohol. The ester stream thereby obtained is then fractionated and a fraction including esters of unsaturated C18 fatty acids is subjected to metathesis conditions in the presence of an alkene to obtain metathesis products. Fractionation of the metathesis products includes recovery of at least renewable 1-decene, and unsaturated C10-C15 fatty acid esters.

Renewable alkene production engaging metathesis

A process is disclosed for producing renewable products, such as a renewable base oil, from a feedstock of biological origin. The process includes subjecting a feedstock containing free fatty acids and fatty acid glycerides, wherein at least one hydrocarbon chain is unsaturated, to esterification reaction in the presence of an alcohol. An ester stream thereby obtained is then subjected to metathesis conditions in the presence of a renewable alkene to obtain a metathesis product. Separation of the metathesis product includes recovery of a fraction containing or consisting essentially of C16 fatty acid esters, which is subjected to ketonisation reaction conditions to produce long chain ketones, which after hydrotreatment meet requirements for a renewable base oil. Ketonisation reaction produces renewable alkene usable in metathesis reaction.

Renewable base oil production engaging metathesis

The invention relates to a foodstuff preservation composition comprising potassium acetate and alkali metal diacetate. The present invention further relates to a use of the foodstuff preservation composition for preventing growth ofstrain and mesophilic aerobic bacteria under storage conditions. Additionally it relates to a method for preserving foodstuff, and to a cooked meat product comprising said composition.

Foodstuff preserving composition and use thereof

The present invention relates to a method and an arrangement for separation and recovery of at least one carboxylic acid and furfural from a dilute aqueous mixture thereof. In the method of the present invention a dilute aqueous mixture comprising at least one carboxylic acid and furfural is extracted with methyltetrahydrofurane, and at least one carboxylic acid and furfural are recovered. The arrangement of the present invention comprises an extraction unitfor carrying out extraction of at least one carboxylic acid and furfural from dilute aqueous mixture with methyltetrahydrofuran, connected to distillation unitfor carrying out distillation of the extractfrom the extraction unit, and connected to acids distillation unitfor carrying out distillation of the bottom streamfrom the distillation unitto separate at least one carboxylic acid and furfural.

Method and an arrangement for separating at least one carboxylic acid and furfural from a dilute aqueous mixture thereof

The present invention provides a method for purifying and recovering propionic acid from an aqueous mixture containing a fermentation product obtained from a fermentation process using glycerol as substrate, the method comprising optionally acidifying the aqueous mixture to a pH below 4.5, subjecting the aqueous mixture to an extraction with extracting agent containing a heavy extractant and optionally a light extractant as a diluent to obtain an extract comprising the extracting agent and organic acids, and a raffinate comprising water and any unreacted glycerol, and subjecting the extract to vacuum evaporation to separate propionic acid-containing organic acids from the extractant.

Method for recovering and purifying propionic acid

Disclosed is a novel deicing composition having improved corrosion inhibition and being obtained by mixing 89-99.98% by weight of an alkali metal formate 0.01-6% by weight of an alkali metal silicate and 0.01-5% by weight of a C-Calkyl carboxylic acid, said weight percentages being calculated on dry substances.

Deicing composition and use thereof

The present invention concerns a method for preparing heterogeneous catalysts. According to the method, preparation is carried out under such process conditions in which the bonding of compounds from the gas phase onto the surface of a support material is primarily determined by the properties of the support surface. The constituents contained in the reagent are then selectively bonded to the bonding sites of the support material surface, thus forming stable surface bonds. According to the invention, the number of surface-bond sites available for preparing a stable product with surface bonds is controlled by varying the reaction temperature and/or selecting a suitable reagent. The invention makes it possible to control the metal content of the end product at a predetermined level.

Method for preparing heterogeneous catalysts of desired metal content

The invention relates to a process for the preparation of polyvalent alcohols by hydrogenation of an aldehyde. According to the invention said aldehyde is obtained by aldolisation reaction of an aldehyde containing an &agr; hydrogen atom and having the formula R,CHO, or the mixture of said aldehyde with a second different aldehyde having the formula or R,CHO, wherein R,is selected from alkyl having 1-12 carbon atoms, cycloalkyl, aryl and aralkyl having 1-14 carbon atoms, and R,is selected from H, alkyl having 1-12 carbon atoms, cycloalkyl, aryl and aralkyl having 1-14 carbon atoms, said aldolisation being carried out in the presence of a weak base anion exchange resin, and the hydrogenation being carried out in the presence of a solvent and a hydrogenation catalyst.

Process for the preparation of polyvalent alcohols

The present invention concerns a heterogeneous catalyst particularly suited to the metathetic reactions of olefins in liquid or gas phase. Such a catalyst generally includes catalytically active species of tungsten on an inorganic support. The catalyst in accordance with the invention is prepared by vaporizing a precursor of tungsten, such as tungsten oxychloride or hexachloride and then routing the vapor of the tungsten-containing reagent into a reaction space, where the vapor is brought to interaction with the support material at approximately 160.degree. to 500.degree. C. The vapor pressure of the tungsten-containing reagent is kept sufficiently high, and the duration of interaction with the support sufficiently long, to keep the amount of the reagent at least equal to the number of available bonding sites of the support, whereby the bonding of the tungsten-containing reagent to the support surface is determined by the surface properties of the support. The catalyst can be posttreated after its preparation to modify its catalytic activity. The specific activity of the catalytic metal species of the catalyst according to the invention is high.

Catalyst for metathetic reactions of olefins

The invention relates to a catalyst to be utilized in the metathesis reactions of olefines, the catalyst comprising an after-treated tungsten complex containing diol ligands and hydrocarbon ligands, which are benzenes substituted with a lower alkyl group. The invention also relates to a method for preparing a heterogenous catalyst to be used in the metathesis reaction of olefines as well as to a metathesis process for the conversion of olefines.

Catalyst for metathesis reactions of olefines and a method for preparing

A metathesis process of the conversion of olefines, in which at least one olefine is brought into contact with a solid catalyst system comprising on a solid silica carrier 0.1-40% by weight of a tungsten compound under reaction conditions such that the catalyst system converts the olefine into olefines having a different molecular weight. In the process a magnesium oxide or titanium oxide containing co-gel prepared by means of a co-gelling system is used as the silica carrier.

Metathesis process for olefines and a catalyst to be applied therein

Growing community of inventors

Porvoo, Finland

Jukka Hietala