Patents by Inventor Montri Vichailak
Montri Vichailak 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: 9315741Abstract: A process for reducing the concentration of benzene in a hydrocarbon stream, the process including: fractionating a reformate to form a benzene concentrate fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; and hydrogenating the benzene concentrate fraction to form a hydrocarbon fraction having a reduced benzene concentration.Type: GrantFiled: September 8, 2008Date of Patent: April 19, 2016Assignee: Catalytic Distillation TechnologiesInventors: Montri Vichailak, Purvis K. Ho, Martinus J. Almering, Arvids Judzis, Jr., Willibrord A. Groten, Lawrence A. Smith, Jr., Yongqiang Xu
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Patent number: 8395002Abstract: A process for recovering benzene, the process including: feeding hydrogen and a hydrocarbon fraction comprising benzene, components lighter than benzene, components heavier than benzene, and diolefins to a catalytic distillation reactor system comprising at least one reaction zone comprising a hydrogenation catalyst; concurrently in the catalytic distillation reactor system: contacting the diolefins and hydrogen in the presence of the hydrogenation catalyst to selectively hydrogenate at least a portion of the diolefins; and fractionating the hydrocarbon fraction to form a fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; recovering the heavies fraction from the first catalytic distillation reactor system as a bottoms fraction; and withdrawing the fraction comprising benzene and other C6 hydrocarbons from the catalytic distillation reactor system as a benzene concentrate fraction.Type: GrantFiled: March 9, 2010Date of Patent: March 12, 2013Assignee: Catalytic Distillation TechnologiesInventors: Martinus J. Almering, Purvis K. Ho, Mitchell E. Loescher, Montri Vichailak
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Publication number: 20100228063Abstract: A process for recovering benzene, the process including: feeding hydrogen and a hydrocarbon fraction comprising benzene, components lighter than benzene, components heavier than benzene, and diolefins to a catalytic distillation reactor system comprising at least one reaction zone comprising a hydrogenation catalyst; concurrently in the catalytic distillation reactor system: contacting the diolefins and hydrogen in the presence of the hydrogenation catalyst to selectively hydrogenate at least a portion of the diolefins; and fractionating the hydrocarbon fraction to form a fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; recovering the heavies fraction from the first catalytic distillation reactor system as a bottoms fraction; and withdrawing the fraction comprising benzene and other C6 hydrocarbons from the catalytic distillation reactor system as a benzene concentrate fraction.Type: ApplicationFiled: March 9, 2010Publication date: September 9, 2010Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Martinus J. Almering, Purvis K. Ho, Mitchell E. Loescher, Montri Vichailak
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Publication number: 20100063334Abstract: A process for reducing the concentration of benzene in a hydrocarbon stream, the process including: fractionating a reformate to form a benzene concentrate fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; and hydrogenating the benzene concentrate fraction to form a hydrocarbon fraction having a reduced benzene concentration.Type: ApplicationFiled: September 8, 2008Publication date: March 11, 2010Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Montri Vichailak, Purvis K. Ho, Martinus J. Almering, Arvids Judzis, JR., Willibrord A. Groten, Lawrence A. Smith, JR., Yongqiang Xu
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Patent number: 7291258Abstract: A process for concurrently fractionating and hydrotreating a full range naphtha stream.Type: GrantFiled: November 12, 2005Date of Patent: November 6, 2007Assignee: Catalytic Distillation TechnologiesInventors: Gary G. Podrebarac, Mario J. Maraschino, Montri Vichailak
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Publication number: 20060065578Abstract: A process for concurrently fractionating and hydrotreating a full range naphtha stream.Type: ApplicationFiled: November 12, 2005Publication date: March 30, 2006Inventors: Gary Podrebarac, Mario Maraschino, Montri Vichailak
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Patent number: 6863778Abstract: A process for the separation of diisobutylene from tertiary butyl alcohol utilizing pressure swing azeotropic distillation to achieve the desired separation. The pressure swing azeotropic distillation takes advantage of the fact that different azeotropes are formed at different pressures. Isobutylene in C4 streams is oligomerized in the presence of tertiary butyl alcohol to produce the diisobutylene. Tertiary butyl alcohol is present in the dimerization because it improves the selectivity to the dimer (diisobutylene) by suppressing further reaction to the trimer or higher. The diisobutylene is separated from the tertiary butyl alcohol utilizing two distillation columns. The first distillation is operated at a higher pressure than the second such that the minimum boiling azeotropes of tertiary butyl alcohol and diisobutylene have different concentrations of tertiary butyl alcohol. Diisobutylene is removed as bottoms from the first distillation column and unreacted C4's are removed as overheads at 60-130 psig.Type: GrantFiled: December 9, 2002Date of Patent: March 8, 2005Assignee: Catalytic Distillation TechnologiesInventors: Jianhua Wang, Nishit Sahay, Mitchell E. Loescher, Montri Vichailak
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Publication number: 20040129606Abstract: A process for concurrently fractionating and hydrotreating a full range naphtha stream.Type: ApplicationFiled: June 18, 2003Publication date: July 8, 2004Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Gary G. Podrebarac, Mario J. Maraschino, Montri Vichailak
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Publication number: 20040020758Abstract: A process for the separation of diisobutylene from tertiary butyl alcohol utilizing pressure swing azeotropic distillation to achieve the desired separation. The pressure swing azeotropic distillation takes advantage of the fact that different azeotropes are formed at different pressures. Isobutylene in C4 streams is oligomerized in the presence of tertiary butyl alcohol to produce the diisobutylene. Tertiary butyl alcohol is present in the dimerization because it improves the selectivity to the dimer (diisobutylene) by suppressing further reaction to the trimer or higher. The diisobutylene is separated from the tertiary butyl alcohol utilizing two distillation columns. The first distillation is operated at a higher pressure than the second such that the minimum boiling azeotropes of tertiary butyl alcohol and diisobutylene have different concentrations of tertiary butyl alcohol. Diisobutylene is removed as bottoms from the first distillation column and unreacted C4's are removed as overheads at 60-130 psig .Type: ApplicationFiled: December 9, 2002Publication date: February 5, 2004Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Jianhua Wang, Nishit Sahay, Mitchell E. Loescher, Montri Vichailak
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Patent number: 6676830Abstract: A process for the desulfurization of a light boiling range (C5-350° F.) fluid catalytically cracked naphtha, which may be first subjected to a thioetherification to react the diolefins with mercaptans contained in it to form sulfides, is fed to a high pressure (>250 psig) catalytic distillation hydrodesulfurization step along with hydrogen under conditions to react most of the organic sulfur compounds, including sulfides from the thioetherification to form H2S. The H2S and a light product stream (C5's and C6's) are removed as overheads. The bottoms from the catalytic distillation hydrodesulfurization step is fractionated and the bottoms from the fractionation contacted with hydrogen in a straight pass hydrogenation step in the presence of a hydrodesulfurization catalyst at pressure of >250 and temperature >400° F. to further reduce the sulfur content.Type: GrantFiled: September 17, 2001Date of Patent: January 13, 2004Assignee: Catalytic Distillation TechnologiesInventors: Montri Vichailak, Bertrand Klussman, Mario J. Maraschino
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Patent number: 6416658Abstract: 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, which have been treated to covert mercaptans in the fractions to H2S, which is separated with and separated from the light naphtha wherein the improvement is a further hydrodesulfurization by contacting the light boiling range naphtha with hydrogen in countercurrent flow in a fixed bed of hydrodesulfurization catalyst to remove recombinant mercaptans which are formed by the reverse reaction of H2S with olefins in the naphtha during the initial hydrodesulfurization.Type: GrantFiled: October 19, 2000Date of Patent: July 9, 2002Assignee: Catalytic Distillation TechnologiesInventors: Mario J. Maraschino, Montri Vichailak, Bertrand Klussman, Harjeet Virdi