Patents by Inventor Brian W. Hokkanen
Brian W. Hokkanen 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).
-
Patent number: 9663437Abstract: A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid. Preferably the second reactor is a homogeneous reactor and a reactor carbon monoxide partial pressure is less than 1.05 MPa.Type: GrantFiled: February 8, 2012Date of Patent: May 30, 2017Assignee: CELANESE INTERNATIONAL CORPORATIONInventors: G. Paull Torrence, Brian W. Hokkanen, Ronald David Shaver
-
Patent number: 9567282Abstract: A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.Type: GrantFiled: February 28, 2013Date of Patent: February 14, 2017Assignee: CELANESE INTERNATIONAL CORPORATIONInventors: G. Paull Torrence, Brian W. Hokkanen, Michael O. Nutt, Tianshu Pan, Ronald D. Shaver
-
Patent number: 9409163Abstract: In one embodiment, the invention is to an ion exchange resin composition comprising a metal-functionalized exchange resin comprising from 3% to 94% metal-functionalized active sites; and a non-metal-functionalized exchange resin comprising non-metal-functionalized active sites.Type: GrantFiled: January 13, 2014Date of Patent: August 9, 2016Assignee: CELANESE INTERNATIONAL CORPORATIONInventors: Ronald D. Shaver, Greg Blanchard, Brian W. Hokkanen, G. Paull Torrence
-
Patent number: 8877963Abstract: The present invention is to a process for producing acetic acid comprising the step of reacting a carbon monoxide feed and methanol and/or a methanol derivative in a first reactor to produce a crude acetic acid product. The carbon monoxide may comprise less than 99.5 mol % carbon monoxide. The process further comprises the step of purging a carbon monoxide purge stream comprising a first amount of residual carbon monoxide and one or more impurities. Preferably, the first amount is greater than 20 mol %. The process further comprises the step of separating the crude acetic acid product into at least one derivative stream comprising a second amount of residual carbon monoxide. The process further comprises the step of reacting at least a portion of the second amount of residual carbon monoxide and methanol and/or a methanol derivative in a second reactor to produce additional acetic acid.Type: GrantFiled: September 13, 2011Date of Patent: November 4, 2014Assignee: Celanese International CorporationInventors: Brian W. Hokkanen, Michael Nutt, Tianshu Pan, Ronald David Shaver, G. Paull Torrence
-
Publication number: 20140128487Abstract: In one embodiment, the invention is to an ion exchange resin composition comprising a metal-functionalized exchange resin comprising from 3% to 94% metal-functionalized active sites; and a non-metal-functionalized exchange resin comprising non-metal-functionalized active sites.Type: ApplicationFiled: January 13, 2014Publication date: May 8, 2014Applicant: Celanese International CorporationInventors: Ronald D. Shaver, Greg Blanchard, Brian W. Hokkanen, G. Paull Torrence
-
Patent number: 8664283Abstract: In one embodiment, the invention is to an ion exchange resin composition comprising a metal-functionalized exchange resin comprising from 3% to 94% metal-functionalized active sites; and a non-metal-functionalized exchange resin comprising non-metal-functionalized active sites.Type: GrantFiled: December 28, 2011Date of Patent: March 4, 2014Assignee: Celanese International CorporationInventors: Greg Blanchard, Ronald D. Shaver, Brian W. Hokkanen, G. Paull Torrence
-
Publication number: 20130066107Abstract: A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid. Preferably the second reactor is a homogeneous reactor and a reactor carbon monoxide partial pressure is less than 1.05 MPa.Type: ApplicationFiled: February 8, 2012Publication date: March 14, 2013Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: G. Paull Torrence, Brian W. Hokkanen, Ronald David Shaver
-
Patent number: 8394988Abstract: A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.Type: GrantFiled: September 28, 2010Date of Patent: March 12, 2013Assignee: Celanese International CorporationInventors: G. Paull Torrence, Brian W. Hokkanen, Michael O. Nutt, Tianshu Pan, Ronald David Shaver
-
Publication number: 20120202900Abstract: In one embodiment, the invention is to an ion exchange resin composition comprising a metal-functionalized exchange resin comprising from 3% to 94% metal-functionalized active sites; and a non-metal-functionalized exchange resin comprising non-metal-functionalized active sites.Type: ApplicationFiled: December 28, 2011Publication date: August 9, 2012Applicant: Celanese International CorporationInventors: Greg Blanchard, Ronald D. Shaver, Brian W. Hokkanen, G. Paull Torrence
-
Publication number: 20120083623Abstract: The present invention is to a process for producing acetic acid comprising the step of reacting a carbon monoxide feed and methanol and/or a methanol derivative in a first reactor to produce a crude acetic acid product. The carbon monoxide may comprise less than 99.5 mol % carbon monoxide. The process further comprises the step of purging a carbon monoxide purge stream comprising a first amount of residual carbon monoxide and one or more impurities. Preferably, the first amount is greater than 20 mol %. The process further comprises the step of separating the crude acetic acid product into at least one derivative stream comprising a second amount of residual carbon monoxide. The process further comprises the step of reacting at least a portion of the second amount of residual carbon monoxide and methanol and/or a methanol derivative in a second reactor to produce additional acetic acid.Type: ApplicationFiled: September 13, 2011Publication date: April 5, 2012Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Brian W. Hokkanen, Michael Nutt, Tianshu Pan, Ronald David Shaver, G. Paull Torrence
-
Publication number: 20120078012Abstract: A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.Type: ApplicationFiled: September 28, 2010Publication date: March 29, 2012Applicant: Celanese International CorporationInventors: G. Paull Torrence, Brian W. Hokkanen, Michael O. Nutt, Tianshu Pan, Ronald David Shaver