Neste Oil Oyj

Neste Oyj

Borealis Ag

Fortum Oyj

Borealis Technology Oy

Coolbrook Oy

Veli-Matti Purola

Jukka Myllyoja

Pekka Aalto

Petri Lindqvist

Ville Alopaeus

Pekka Savolainen

Johan Gronqvist

Antti Pyhälahti

Johan Grönqvist

Marina Lindblad

Sami Toppinen

Pirjo Siira

Juha Jakkula

Isto Eilos

Vesa Niemi

Jukka Seppala

Jouko Nikkonen

Jukka Seppälä

Matti Nurminen

Jan Wahlström

Juha Lehtonen

Kari I Keskinen

Hanna Honkanen

Jyrki Hiltunen

Anja Mannerla

Niilo Oikarinen

Filip Thierie

Matti Koskinen

Harri JÄRVELIN

Antti PYHÄLAHTI

Johan Groenqvist

Jan Wahlstrom

Antti Pyhalahti

The invention relates to a process for the manufacture of diesel range hydrocarbons wherein a feed is hydrotreated in a hydrotreating step and isomerised in an isomerisation step, and a feed comprising fresh feed containing more than 5 wt % of free fatty acids and at least one diluting agent is hydrotreated at a reaction temperature of 200-400° C., in a hydrotreating reactor in the presence of catalyst, and the ratio of the diluting agent/fresh feed is 5-30:1.

Process for the manufacture of diesel range hydrocarbons

The current disclosure relates to an apparatus and a process for producing poly-α-olefins (PAO), including reacting olefin monomers in a presence of a catalyst complex to form PAO product. The reaction is performed in a reaction including a reactor vessel and a system for recycling and cooling part of reactor outlet stream. At least one reactor is a cone reactor with a first cross sectional area in an upper part of the vessel and the cross sectional area decreases downwards to a second cross sectional area, which is smaller than the first cross sectional area.

Process and apparatus for producing poly-alpha-olefins

The invention relates to a process for the manufacture of diesel range hydrocarbons wherein a feed is hydrotreated in a hydrotreating step and isomerised in an isomerisation step, and a feed comprising fresh feed containing more than 5 wt % of free fatty acids and at least one diluting agent is hydrotreated at a reaction temperature of 200-400&#xb0; C., in a hydrotreating reactor in the presence of catalyst, and the ratio of the diluting agent/fresh feed is 5-30:1.

The invention relates to a process for the manufacture of diesel range hydrocarbons wherein a feed is hydrotreated in a hydrotreating step and isomerized in an isomerization step, and a feed comprising fresh feed containing more than 5 wt % of free fatty acids and at least one diluting agent is hydrotreated at a reaction temperature of 200-400&#xb0; C., in a hydrotreating reactor in the presence of catalyst, and the ratio of the diluting agent/fresh feed is 5-30:1.

A rotary machine type shock wave reactor suitable for thermal cracking of hydrocarbon-containing materials includes a casing, a rotor whose periphery contains an axial-flow blade cascade, and a directing rim, provided with at least two stationary vane cascades, adjoining an axial-flow rotor cascade, wherein the casing substantially encloses the periphery of the rotor and the directing rim. The cascades are configured to direct feedstock containing process stream to repeatedly pass the cascades in a helical trajectory while propagating within the duct between the inlet and exit and to generate stationary shock-waves to heat the feedstock. The axial-flow rotor cascade is configured to provide kinetic energy and add velocity to feedstock containing process stream, and the stationary vanes located downstream the rotor cascade are configured to reduce the velocity of the stream and convert kinetic energy into heat. The reactor may also process carbohydrate-and glyceride-based feedstock, and gaseous biomass matter.

Process and rotary machine type reactor

A process for oxidizing cumene to cumene hydroperoxide using an oxygen containing gas, which process composes&#x2014;conducting a cumene feed and an oxygen containing gas feed to at least the first oxidation reactor in a series of 3-8 reactors, thereby forming an oxidation mixture, and&#x2014;conducting the oxidation mixture from one oxidation reactor to at least one subsequent reactor, wherein&#x2014;the reactors are operated with reducing liquid levels; &#x2014;the oxidation is operated as a dry oxidation, whereby the only gaseous feeds conducted to the oxidation reactors are the cumene feed and the oxygen containing gas feed; &#x2014;the oxygen containing gas feed is washed with caustic and then with water to remove all acidic or caustic traces before conducting it into an oxidation reactor; &#x2014;the pressure within each oxidation reactor is in the range of 0-10 barg; &#x2014;the off-gases from the top section of each oxidation reactor are separated and cooled, whereby a condensate containing unreacted cumene is formed, and&#x2014;washing the condensate and recycling at least a part of it to at least the first oxidation reactor; &#x2014;the non-condensed off-gases are treated in a thermal oxidizer; and&#x2014;the first reactor in the series of oxidation reactors has a liquid inventory of 30-300% larger than in the remaining reactors, preferably 50-100%, or the first two reactors in the series of oxidation reactors have a liquid inventory of 30-300% larger than in the remaining reactors, preferably 50-100%.

Cumene oxidation

The present invention concerns a process for oxidizing cumene to cumene hydroperoxide using an oxygen containing gas, preferably air, which process comprises &#x2014;conducting a cumene feed and an oxygen containing gas feed to at least the first oxidation reactor in a series of 3-8 reactors, thereby forming an oxidation mixture, and conducting the formed oxidation mixture from one reactor to the next, preferably after an oxidation reaction has taken place, wherein &#x2014;the reactors comprise at least one lower pressure oxidizer () as the first reactor in the series and at least one higher pressure oxidizer () as the last reactor in the series; &#x2014;any lower pressure oxidizer is operated at a pressure of at least atmospheric pressure and any higher pressure oxidizer is operated at a pressure of at least 0.5 bar higher than said at least one lower pressure oxidizer.

Multistage cumene oxidation

A process for the removal of by-products from a phenolic mixture, which process may include the following steps: subjecting a phenolic mixture to extractive distillation to produce an initial phenolic mixture, contacting the initial phenolic mixture containing phenol and one or more by products with a catalyst to produce a first purified phenol product mixture, and distilling the first purified phenol product mixture to produce a second purified phenol product mixture; wherein the extractive distillation is carried out in two columns, a higher pressure column and a lower pressure column.

Treatment of phenol

A process for dimerizing olefins in the presence of a catalyst, a hydrocarbon feedstock containing Cto Cisoolefins is subjected to dimerization. The process comprises the steps of contacting the Cto Cisoolefins at conditions conducive to dimerization with a catalytic material comprising an acidic mesoporous molecular sieve, the catalytic material being thermally stable at a temperature of at least 900&#xb0; C., and carrying out the contacting step essentially in the absence of butadiene and water in the feedstock. By means of the invention, the dimerization process can be operated over extended periods of time with prolonged maintenance intervals.

Process for dimerizing olefins

Growing community of inventors

Hamari, Finland

Veli-Matti Purola