Patents by Inventor Willibrord A. Groten
Willibrord A. Groten 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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Publication number: 20040195151Abstract: A process for concurrently fractionating and treating a full range naphtha stream. The full boiling range naphtha stream is first subjected to simultaneous thioetherification and splitting into a light boiling range naphtha, an intermediate boiling range naphtha and a heavy boiling range naphtha. The intermediate boiling range naphtha containing thiophene and thiophene boiling range mercaptans is passed on to a polishing hydrodesulfurization reactor where a low sulfur, low olefin gas oil is concurrently fed to the polishing reactor to insure that a liquid phase is present.Type: ApplicationFiled: April 7, 2004Publication date: October 7, 2004Inventors: Gary G. Podrebarac, Willibrord A. Groten, Lawrence A. Smith
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Publication number: 20040188327Abstract: A process for fractionating and treating of a full range naphtha stream. The full boiling range naphtha stream is first split into a light boiling range naphtha, an intermediate boiling range naphtha and a heavy boiling range naphtha. The bottoms are subjected to hydrodesulfurization and the effluent combined with the intermediate boiling range naphtha containing thiophene and thiophene boiling range mercaptans and subjected to a second hydrodesulfurization. The effluent from the polishing reactor may be combined with the light boiling range naphtha to produce a new full boiling range naphtha containing substantially less total sulfur than the original feed. The mercaptans in the light naphtha may be removed by thioetherification prior to splitting or by wet caustic wash afterwards. The object being to meet higher standards for sulfur removal, by treating the components of the naphtha feed with the process that preserves the olefinic while most expediently removing the sulfur compounds.Type: ApplicationFiled: December 12, 2001Publication date: September 30, 2004Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventor: Willibrord A. Groten
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Publication number: 20040055933Abstract: A process for the production of low benzene content gasoline is disclosed wherein a full boiling range naphtha is fractionated to produce a light naphtha, a medium naphtha and a heavy naphtha. The benzene is contained in the medium naphtha and this stream is subjected to hydrogenation to convert the benzene to cyclohexane which may be isomerized to improve the octane. The valuable olefins are removed in the light naphtha and the valuable heavier aromatics (toluene and xylenes) are removed in the heavy naphtha. In a preferred embodiment all of the reactions are carried out in distillation column reactors.Type: ApplicationFiled: January 29, 2003Publication date: March 25, 2004Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Willibrord A. Groten, Kerry L. Rock
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Publication number: 20040040889Abstract: A process for concurrently fractionating and hydrotreating of a full range naphtha stream. The full boiling range naphtha stream, for example which is derived from fluid catalytic cracking, is first subjected to simultaneous hydrogenation of the thiophene contained therein and thioetherification and fractionation to remove the mercaptans the light fraction and then to simultaneous hydrodesulfurization and splitting of the bottoms into an intermediate boiling range naphtha and a heavy boiling range naphtha. The three boiling range naphthas are treated separately according to the amount of sulfur in each cut and the end use of each fraction.Type: ApplicationFiled: August 27, 2003Publication date: March 4, 2004Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventor: Willibrord A. Groten
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Publication number: 20040030207Abstract: A process for removing acetylenic compounds using unsulfided metallic nickel or unsulfided metallic nickel modified with metallic Mo, Re, Bi or mixtures in which the catalyst is used alone or is used in combination with other acetylenic selective catalysts. The unsulfided metallic nickel catalyst or modified catalyst must be the first catalyst to contact the hydrocarbon stream.Type: ApplicationFiled: August 8, 2002Publication date: February 12, 2004Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: J. Yong Ryu, John R. Adams, Willibrord A. Groten
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Publication number: 20040000506Abstract: A light cracked naphtha is treated to convert mercaptans to sulfides and saturate dienes and then subjected to destructive hydrodesulfurization (HDS) to convert the organic sulfur compounds to hydrogen sulfide. The recombinant mercaptans formed by reaction of hydrogen sulfide and olefins at the outlet of the HDS are generally heavier than the light cracked naphtha is fractionated in admixture with a heavy cracked naphtha. A low sulfur content light cracked naphtha is produced as an overheads and the major portion of the mercaptans leave with heavy cracked naphtha as bottoms. It also advantageous to pass the heavy cracked naphtha through the HDS in admixture with the light cracked naphtha, since the recombinant mercaptans formed with the heavy cracked naphtha olefins (which displace some of the lower mercaptans which would form the light cracked naphtha olefins) will be even higher boiling and easier to separate by fractionation.Type: ApplicationFiled: November 1, 2002Publication date: January 1, 2004Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Gary G. Podrebarac, Willibrord A. Groten, Manoj Som, Martinus J. Almering
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Publication number: 20040000731Abstract: A collapsible sparger for insertion into a vessel through a flanged opening is disclosed having a central tubular conduit having a plurality of rotatable members along its length. The rotatable members may be rotated and secured into position after insertion.Type: ApplicationFiled: January 11, 2002Publication date: January 1, 2004Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Ralph E. Casas, Henry J. Semerak, Rodney D. Chevalier, Willibrord A. Groten, Clifford S. Crossland
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Publication number: 20030230517Abstract: A process for concurrently fractionating and hydrotreating of a full range naphtha stream. The full boiling range naphtha stream, for example which is derived from fluid catalytic cracking, is first subjected to simultaneous hydrogenation of the thiophene contained therein and thioetherification and fractionation to remove the mercaptans the light fraction and then to simultaneous hydrodesulfurization and splitting of the bottoms into an intermediate boiling range naphtha and a heavy boiling range naphtha. The three boiling range naphthas are treated separately according to the amount of sulfur in each cut and the end use of each fraction.Type: ApplicationFiled: June 8, 2001Publication date: December 18, 2003Inventor: Willibrord A. Groten
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Patent number: 6659434Abstract: A collapsible sparger for insertion into a vessel through a flanged opening is disclosed having a central tubular conduit having a plurality of rotatable members along its length. The rotatable members may be rotated and secured into position after insertion.Type: GrantFiled: January 11, 2002Date of Patent: December 9, 2003Assignee: Catalytic Distillation TechnologiesInventors: Ralph E. Casas, Henry J. Semerak, Rodney D. Chevalier, Willibrord A. Groten, Clifford S. Crossland
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Patent number: 6620965Abstract: A process for producing vinyl acetate comprising reacting ethylene, acetic acid and oxygen together in at least partially liquid phase in the presence of a catalyst comprising a noble metal component.Type: GrantFiled: March 8, 2002Date of Patent: September 16, 2003Assignee: Catalytic Distillation TechnologiesInventors: John R. Adams, Willibrord A. Groten, Speros P. Nemphos
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Patent number: 6592750Abstract: A process for the hydrodesulfurization of a cracked naphtha stream is disclosed where very little of the valuable olefins are saturated. The process is a two staged process wherein the H2S is removed between the stages to prevent recombinant mercaptans formation. Because the H2S is removed between the stages milder conditions can be used in the second stage polishing reactor to achieve the same desulfurization levels with less olefin loss.Type: GrantFiled: June 21, 2001Date of Patent: July 15, 2003Assignee: Catalytic Distillation TechnologiesInventors: Gary G. Podrebarac, Gary R. Gildert, Willibrord A. Groten
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Patent number: 6416659Abstract: A process for the hydrodesulfurization of a diesel boiling range petroleum fraction wherein the hydrodesulfurization is carried out concurrently with a fractional distillation in a distillation column reactor containing a catalyst bed. The diesel is fed above the catalyst bed and hydrogen is fed below the bed. The bottoms from the distillation column reactor is then separated by fractional distillation to remove a bottoms containing most of the unconverted sulfur.Type: GrantFiled: August 17, 2000Date of Patent: July 9, 2002Assignee: Catalytic Distillation TechnologiesInventors: Willibrord A. Groten, Mitchell E. Loescher
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Publication number: 20010047952Abstract: A process for the hydrodesulfurization of a cracked naphtha stream is disclosed where very little of the valuable olefins are saturated. The process is a two staged process wherein the H2S is removed between the stages to prevent recombinant mercaptans formation. Because the H2S is removed between the stages milder conditions can be used in the second stage polishing reactor to achieve the same desulfurization levels with less olefin loss.Type: ApplicationFiled: June 21, 2001Publication date: December 6, 2001Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Gary G. Podrebarac, Gary R. Gildert, Willibrord A. Groten
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Patent number: 6303020Abstract: A process for the hydrodesulfurization of a cracked naphtha stream is disclosed where very little of the valuable olefins are saturated. The process is a two staged process wherein the H2S is removed between the stages to prevent recombinant mercaptans formation. Because the H2S is removed between the stages milder conditions can be used in the second stage polishing reactor to achieve the same desulfurization levels with less olefin loss.Type: GrantFiled: February 11, 2000Date of Patent: October 16, 2001Assignee: Catalytic Distillation TechnologiesInventors: Gary G. Podrebarac, Gary R. Gildert, Willibrord A. Groten
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Patent number: 6232509Abstract: A process for the separation and recovery of methyl tertiary butyl ether from mixed C4/C5 streams, such as resulting from the co-production of methyl tertiary butyl ether and tertiary amyl methyl ether from the reaction of methanol with isobutene and isoamylenes in a mixed C4/C5 stream. In a distillation column reactor the reaction is carried out concurrently with distillation of the products from the unreacted materials. In the distillation little or no MTBE is carried overhead with the unreacted C4's, C5's and methanol by controlling the methanol concentration in said column to maintain substantially a methanol/C5 azeotrope in the overheads.Type: GrantFiled: June 9, 2000Date of Patent: May 15, 2001Assignee: Catalytic Distillation TechnologiesInventors: Lawrence A. Smith, Jr., Henry J. Semerak, Willibrord A. Groten
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Patent number: 6083378Abstract: A process for concurrently fractionating and hydrotreating of a full range naphtha stream. The full boiling range naphtha stream is subjected to simultaneous hydrodesulfurization and splitting into a light boiling range naphtha and a heavy boiling range naphtha. The two boiling range naphthas are treated separately according to the amount of sulfur in each cut and the end use of each fraction.Type: GrantFiled: September 10, 1998Date of Patent: July 4, 2000Assignee: Catalytic Distillation TechnologiesInventors: Gary R. Gildert, Willibrord A. Groten, Hugh M. Putman
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Patent number: 6000685Abstract: A gas liquid contact structure having a plurality of corrugated woven wire sheets alternated with rigid support members to separate and support the woven wire sheets. The vees or peaks of the corrugations are aligned and oriented in the same direction with the rigid support members separating and preventing the corrugations from nesting together.Type: GrantFiled: June 29, 1998Date of Patent: December 14, 1999Assignee: Catalytic Distillation TechnologiesInventors: Willibrord A. Groten, Derwyn Booker
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Patent number: 5886055Abstract: A process for the production of methanol is disclosed wherein the gaseous reactants of CO, H.sub.2 and optimally CO.sub.2 are reacted in a distillation column reactor in the presence of an inert C.sub.7 -C.sub.12 component, which is boiling at the reaction temperature within the catalyst bed. The inert component is taken overhead along with the methanol and separated therefrom for reflux of the inert component back to the reactor.Type: GrantFiled: January 13, 1997Date of Patent: March 23, 1999Assignee: Catalytic Distillation TechnologiesInventors: Speros P. Nemphos, Willibrord A. Groten, John R. Adams
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Patent number: 5811623Abstract: A isomerization process for C.sub.4 to C.sub.15 olefins carried out by the reaction of C.sub.4 to C.sub.15 olefins, having a first skeletal distribution, with aromatic compounds under alkylation conditions to produce an alkylated aromatic product, dealkylation of the alkylated aromatic product under dealkylation conditions to produce a dealkylated product comprising said aromatic compounds and olefins corresponding to the olefins in the alkylation and having a second skeletal distribution different than said first skeletal distribution. Acidic catalysts such as molecular sieves are used in both alkylation and dealkylation. The reactions may be carried out in either straight pass fixed beds or in catalytic distillation reactors.Type: GrantFiled: June 9, 1997Date of Patent: September 22, 1998Assignee: Catalytic Distillation TechnologiesInventors: J. Yong Ryu, Willibrord A. Groten
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Patent number: 5730843Abstract: A contact structure, useful as a distillation structure, has a rigid frame made of two substantially vertical duplicate grids spaced apart and held rigid by a plurality of substantially horizontal rigid members and a plurality of substantially horizontal wire mesh tubes mounted to the grids to form a plurality of fluid pathways among the tubes. For use as a catalytic distillation structure, which serves as both the distillation structure and the catalyst, at least a portion of the wire mesh tubes contain a particulate catalytic material. The catalyst within the tubes provides a reaction zone where catalytic reactions may occur and the wire mesh provides mass transfer surfaces to effect a fractional distillation. The spacing elements provide for a variation of the catalyst density and loading and structural integrity.Type: GrantFiled: December 29, 1995Date of Patent: March 24, 1998Assignee: Chemical Research & Licensing CompanyInventors: Willibrord A. Groten, Derwyn Booker, Clifford S. Crossland