Patents by Inventor Veli-Matti Purola
Veli-Matti Purola has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9598327Abstract: 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° C., in a hydrotreating reactor in the presence of catalyst, and the ratio of the diluting agent/fresh feed is 5-30:1.Type: GrantFiled: September 4, 2014Date of Patent: March 21, 2017Assignee: NESTE OIL OYJInventors: Jukka Myllyoja, Pekka Aalto, Pekka Savolainen, Veli-Matti Purola, Ville Alopaeus, Johan Gronqvist
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Patent number: 9234140Abstract: 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.Type: GrantFiled: February 22, 2013Date of Patent: January 12, 2016Assignee: COOLBROOK OYInventors: Jukka Seppala, Jyrki Hiltunen, Veli-Matti Purola
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Publication number: 20150329389Abstract: Use of off gas from the oxidation of cumene to cumene hydroperoxide to strip at least one organic compound from a waste water stream containing said at least one organic compound, in particular to strip at least one organic compound from a waste water stream formed during phenol production.Type: ApplicationFiled: April 25, 2013Publication date: November 19, 2015Inventor: Veli-Matti PUROLA
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Patent number: 8975444Abstract: A process for oxidizing cumene to cumene hydroperoxide using an oxygen containing gas, which process composes—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 oxidation mixture from one oxidation reactor to at least one subsequent reactor, wherein—the reactors are operated with reducing liquid levels; —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; —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; —the pressure within each oxidation reactor is in the range of 0-10 barg; —the off-gases from the top section of each oxidation reactor are separated and cooled, whereby a condensate containing unreacted cumene is formed, and—washing the condensate andType: GrantFiled: December 17, 2009Date of Patent: March 10, 2015Assignee: Borealis AGInventors: Veli-Matti Purola, Anja Mannerla
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Publication number: 20150057476Abstract: 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.Type: ApplicationFiled: September 4, 2014Publication date: February 26, 2015Applicant: NESTE OIL OYJInventors: Jukka MYLLYOJA, Pekka AALTO, Pekka SAVOLAINEN, Veli-Matti PUROLA, Ville ALOPAEUS, Johan GRONQVIST
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Patent number: 8952202Abstract: The present invention concerns a process for oxidizing cumene to cumene hydroperoxide using an oxygen containing gas, preferably air, which process comprises —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 —the reactors comprise at least one lower pressure oxidizer (1) as the first reactor in the series and at least one higher pressure oxidizer (2) as the last reactor in the series; —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.Type: GrantFiled: December 17, 2009Date of Patent: February 10, 2015Assignee: Borealis AGInventor: Veli-Matti Purola
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Patent number: 8859832Abstract: 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° C., in a hydrotreating reactor in the presence of catalyst, and the ratio of the diluting agent/fresh feed is 5-30:1.Type: GrantFiled: June 7, 2012Date of Patent: October 14, 2014Assignee: Neste Oil OyjInventors: Jukka Myllyoja, Pekka Aalto, Pekka Savolainen, Veli-Matti Purola, Ville Alopaeus, Johan Grönqvist
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Publication number: 20140243569Abstract: 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.Type: ApplicationFiled: February 22, 2013Publication date: August 28, 2014Applicant: COOLBROOK OYInventors: Jukka SEPPALA, Jyrki HILTUNEN, Veli-Matti PUROLA
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Patent number: 8389776Abstract: 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.Type: GrantFiled: December 22, 2008Date of Patent: March 5, 2013Assignee: Borealis Technology OyInventor: Veli-Matti Purola
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Publication number: 20130030229Abstract: 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.Type: ApplicationFiled: June 7, 2012Publication date: January 31, 2013Inventors: Jukka Myllyoja, Pekka Aalto, Pekka Savolainen, Veli-Matti Purola, Ville Alopaeus, Johan Grönqvist
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Patent number: 8299312Abstract: A process for dimerizing olefins in the presence of a catalyst, a hydrocarbon feedstock containing C4 to C6 isoolefins is subjected to dimerization. The process comprises the steps of contacting the C4 to C6 isoolefins 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° 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.Type: GrantFiled: October 26, 2006Date of Patent: October 30, 2012Assignee: Neste Oil OyjInventors: Niilo Oikarinen, Kari I. Keskinen, Antti Pyhälahti, Veli-Matti Purola
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Patent number: 8212094Abstract: 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° C., in a hydrotreating reactor in the presence of catalyst, and the ratio of the diluting agent/fresh feed is 5-30:1.Type: GrantFiled: May 13, 2011Date of Patent: July 3, 2012Assignee: Neste Oil OyjInventors: Jukka Myllyoja, Pekka Aalto, Pekka Savolainen, Veli-Matti Purola, Ville Alopaeus, Johan Grönqvist
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Publication number: 20110301384Abstract: A process for oxidizing cumene to cumene hydroperoxide using an oxygen containing gas, which process composes—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 oxidation mixture from one oxidation reactor to at least one subsequent reactor, wherein—the reactors are operated with reducing liquid levels; —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; —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; —the pressure within each oxidation reactor is in the range of 0-10 barg; —the off-gases from the top section of each oxidation reactor are separated and cooled, whereby a condensate containing unreacted cumene is formed, and—washing the condensate andType: ApplicationFiled: December 17, 2009Publication date: December 8, 2011Applicant: BOREALIS AGInventors: Veli-Matti Purola, Anja Mannerla
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Publication number: 20110282116Abstract: 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.Type: ApplicationFiled: May 13, 2011Publication date: November 17, 2011Inventors: Jukka MYLLYOJA, Pekka AALTO, Pekka SAVOLAINEN, Veli-Matti PUROLA, Ville ALOPAEUS, Johan GRÖNQVIST
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Publication number: 20110263905Abstract: The present invention concerns a process for oxidizing cumene to cumene hydroperoxide using an oxygen containing gas, preferably air, which process comprises—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—the reactors comprise at least one lower pressure oxidizer (1) as the first reactor in the series and at least one higher pressure oxidizer (2) as the last reactor in the series; —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.Type: ApplicationFiled: December 17, 2009Publication date: October 27, 2011Applicant: BOREALIS AGInventor: Veli-Matti Purola
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Patent number: 8022258Abstract: 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.Type: GrantFiled: June 30, 2006Date of Patent: September 20, 2011Assignee: Neste Oil OyjInventors: Jukka Myllyoja, Pekka Aalto, Pekka Savolainen, Veli-Matti Purola, Ville Alopaeus, Johan Grönqvist
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Publication number: 20100280285Abstract: 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.Type: ApplicationFiled: December 22, 2008Publication date: November 4, 2010Applicant: BOREALIS TECHNOLOGY OYInventor: Veli-Matti Purola
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Patent number: 7473811Abstract: The present invention relates to a process for the hydrogenation of olefins. The process comprises hydrogenation of a feed stock comprising more than 90 wt-% of olefins, carried out in a hydrogenation reactor comprising at least two reaction stages, wherein the feed stock is hydrogenated in the first reaction stage equipped with a cooling circuit and comprising a first and an optional second catalyst bed, and the effluent from the first reaction stage is hydrogenated in the final reaction stage comprising one or more catalyst beds and optionally equipped with a cooling circuit, the process is operated in trickling or pulse flow mode in a three phase reactor with a fixed catalyst bed and at least one catalyst of same or different type is used in each stage, the catalyst having different particle size and/or optionally different shape in at least two stages.Type: GrantFiled: November 12, 2004Date of Patent: January 6, 2009Assignee: Neste Oil OyjInventors: Isto Eilos, Antti Pyhälahti, Matti Nurminen, Veli-Matti Purola
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Patent number: 7304196Abstract: A method for dimerizing isobutene, wherein, in dimerizing conditions, the isobutene is brought into contact with a porous cation exchange resin comprising a styrene polymer, which is cross-linked with divinyl benzene, and any sulphonic acid groups adhering to the polymer. The harmful deactivation of this catalyst, which is caused by the accumulation of the oligomers and polymers of isobutene and other C4-olefins in the cation exchange resin catalyst, is essentially decreased by selecting the cation exchange resin from a group including cation exchange resins, the acid,capacity of which is 4.7 equivalents/kg at a minimum, and the portion of divinyl benzene units of which is 5% by weight at a minimum and smaller than 20% by weight.Type: GrantFiled: October 29, 2004Date of Patent: December 4, 2007Assignee: Neste Oil OYJInventors: Veli-Matti Purola, Sami Toppinen, Antti Pyhalahti, Marina Lindblad, Johan Gronqvist, Pirjo Siira
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Publication number: 20070191662Abstract: A process for dimerizing olefins in the presence of a catalyst, a hydrocarbon feedstock containing C4 to C6 isoolefins is subjected to dimerization. The process comprises the steps of contacting the C4 to C6 isoolefins 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° 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.Type: ApplicationFiled: October 26, 2006Publication date: August 16, 2007Applicant: Neste Oil OyjInventors: Niilo Oikarinen, Kari Keskinen, Antti Pyhalahti, Veli-Matti Purola