Patents by Inventor Dean C. Draemel
Dean C. Draemel 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: 7594993Abstract: This invention relates to the feed injection zone of a FCC. The feed injection zone is non-circular in shape allows for optimal penetration between feed and catalyst in the feed injection zone.Type: GrantFiled: October 29, 2004Date of Patent: September 29, 2009Assignee: Exxonmobile Research and Engineering CompanyInventors: Dean C. Draemel, Todd R. Steffens
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Patent number: 7053260Abstract: The present invention provides a process for making an olefin product from an oxygenate feedstock which comprises: a) contacting the feedstock in a reaction zone with a catalyst comprising i) a molecular sieve having defined pore openings and ii) a CO oxidation metal, under conditions effective to convert the feedstock into an olefin product stream comprising C2–C3 olefins and to form carbonaceous deposits on the catalyst so as to provide a carbon-containing catalyst; b) contacting at least a portion of the carbon-containing catalyst with a regeneration medium comprising oxygen in a regeneration zone comprising a fluid bed regenerator having a dense fluid phase and a dilute fluid phase under conditions effective to obtain a regenerated catalyst portion, wherein the difference between the temperature of the dilute phase and the temperature of the dense phase is no greater than 100° C.; c) introducing said regenerated catalyst portion into said reaction zone; and d) repeating steps a)–c).Type: GrantFiled: June 13, 2002Date of Patent: May 30, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Teng Xu, Paul N. Chisholm, Stephen Neil Vaughn, Shun Chong Fung, Keith Holroyd Kuechler, James R. Lattner, Kenneth Ray Clem, Patrick J. Maher, Dean C. Draemel
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Patent number: 6783662Abstract: A cavitation enhanced atomizing process comprises forming a flowing solution of the liquid to be atomized and a lower boiling cavitating liquid. This flowing solution is then contacted with a pressure reducing means, at a temperature below the bubble point of the cavitating liquid in the solution, to produce cavitation bubbles. These bubbles comprise cavitation liquid vapor and the bubble nucleation produces a two-phase fluid of the bubbles and liquid solution. The two-phase fluid is passed downstream into and through an atomizing means, such as an orifice, and into a lower pressure atomizing zone, in which the bubbles vaporize to form a spray of liquid droplets. The nucleated bubbles also grow in size as the so-formed two-phase fluid passes downstream to and through the atomizing means.Type: GrantFiled: October 17, 2002Date of Patent: August 31, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Dean C. Draemel, Nicholas C. Nahas, Teh C. Ho
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Patent number: 6776607Abstract: The invention relates to a process and apparatus for controlling afterburning in the regenerator of a FCC unit. The process and apparatus inject steam into the dilute phase within a regenerator to promote combustion of carbon monoxide before it enters the regenerator cyclones, plenum, or flue gas transfer lines.Type: GrantFiled: June 26, 2001Date of Patent: August 17, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Nicholas C. Nahas, Richard E. Walter, Dean C. Draemel, Bruce J. Artuso
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Publication number: 20040142813Abstract: The invention relates to a process and apparatus for controlling afterburning in the regenerator of a FCC unit. The process and apparatus inject steam into the dilute phase within a regenerator to promote combustion of carbon monoxide before it enters the regenerator cyclones, plenum, or flue gas transfer lines.Type: ApplicationFiled: January 9, 2004Publication date: July 22, 2004Inventors: Nicholas C. Nahas, Richard E. Walter, Dean C. Draemel, Bruce J. Artuso
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Publication number: 20030163010Abstract: The present invention provides a process for making an olefin product from an oxygenate feedstock which comprises:Type: ApplicationFiled: June 13, 2002Publication date: August 28, 2003Inventors: Teng Xu, Paul N. Chisholm, Stephen Neil Vaughn, Shun Chong Fung, Keith Holroyd Kuechler, James R. Lattner, Kenneth Ray Clem, Patrick J. Maher, Dean C. Draemel
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Publication number: 20030102251Abstract: A cavitation enhanced atomizing process comprises forming a flowing solution of the liquid to be atomized and a lower boiling cavitating liquid. This flowing solution is then contacted with a pressure reducing means, at a temperature below the bubble point of the cavitating liquid in the solution, to produce cavitation bubbles. These bubbles comprise cavitation liquid vapor and the bubble nucleation produces a two-phase fluid of the bubbles and liquid solution. The two-phase fluid is passed downstream into and through an atomizing means, such as an orifice, and into a lower pressure atomizing zone, in which the bubbles vaporize to form a spray of liquid droplets. The nucleated bubbles also grow in size as the so-formed two-phase fluid passes downstream to and through the atomizing means.Type: ApplicationFiled: October 17, 2002Publication date: June 5, 2003Inventors: Dean C. Draemel, Nicholas C. Nahas, Teh C. Ho
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Publication number: 20020159922Abstract: A process and apparatus for atomizing a fluid is disclosed. The processes and apparatuses are useful for atomizing a feed oil for a fluid cat cracking (FCC) or other suitable process.Type: ApplicationFiled: May 24, 2002Publication date: October 31, 2002Inventors: Jackson I. Ito, Leonard Schoenman, Dean C. Draemel, Teh C. Ho, George A. Swan, Sandi Schoenman
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Patent number: 6454933Abstract: A process and apparatus for atomizing a fluid is disclosed. The processes and apparatuses are useful for atomizing a feed oil for a fluid cat cracking (FCC) or other suitable process.Type: GrantFiled: April 2, 2001Date of Patent: September 24, 2002Assignee: ExxonMobil Research and Engineering CompanyInventors: Jackson I. Ito, Leonard Schoenman, Dean C. Draemel, Teh C. Ho, George A. Swan, III
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Publication number: 20020072465Abstract: The invention relates to a process and apparatus for controlling afterburning in the regenerator of a FCC unit. The process and apparatus inject steam into the dilute phase within a regenerator to promote combustion of carbon monoxide before it enters the regenerator cyclones, plenum, or flue gas transfer lines.Type: ApplicationFiled: June 26, 2001Publication date: June 13, 2002Inventors: Nicholas C. Nahas, Richard E. Walter, Dean C. Draemel, Bruce J. Artuso
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Publication number: 20020043478Abstract: A cavitation enhanced atomizing process comprises forming a flowing solution of the liquid to be atomized and a lower boiling cavitating liquid. This flowing solution is then contacted with a pressure reducing means, at a temperature below the bubble point of the cavitating liquid in the solution, to produce cavitation bubbles. These bubbles comprise cavitation liquid vapor and the bubble nucleation produces a two-phase fluid of the bubbles and liquid solution. The two-phase fluid is passed downstream into and through an atomizing means, such as an orifice, and into a lower pressure atomizing zone, in which the bubbles vaporize to form a spray of liquid droplets. The nucleated bubbles also grow in size as the so-formed two-phase fluid passes downstream to and through the atomizing means.Type: ApplicationFiled: August 6, 2001Publication date: April 18, 2002Inventors: Dean C. Draemel, Nicholas C. Nahas, Teh Chung Ho
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Patent number: 6352639Abstract: An atomizing gas, such as steam, and a hot fluid comprising a hot liquid to be atomized, are passed under pressure, through separate fluid conduits in a heat exchange means, in which the hot liquid heats the steam to a superheat temperature, by indirect heat exchange. The superheated steam is then injected into the hot fluid, which comprises a two-phase fluid comprising steam and the hot liquid, subsequent to the superheated steam injection. The two-phase fluid is passed through an atomizing means, such as an orifice, into a lower pressure atomizing zone, which causes the steam to expand and atomize the liquid into a spray of liquid droplets. The two-phase fluid is formed before or as a consequence of the superheated steam injection and is preferably steam-continuous when passed through the atomizing means. This process is useful for atomizing a hot feed oil for a fluid cat cracking (FCC) process.Type: GrantFiled: December 13, 2000Date of Patent: March 5, 2002Assignee: Exxon Research and Engineering CompanyInventors: Jackson I. Ito, Leonard Schoenman, Dean C. Draemel, Teh C. Ho, George A. Swan
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Publication number: 20010043888Abstract: A process and apparatus for atomizing a fluid is disclosed. The processes and apparatuses are useful for atomizing a feed oil for a fluid cat cracking (FCC) or other suitable process.Type: ApplicationFiled: April 2, 2001Publication date: November 22, 2001Inventors: Jackson I. Ito, Leoonard Schoenman, Dean C. Draemel, Teh C. Ho, George A. Swan, Sandi Schoenman
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Publication number: 20010042703Abstract: A process and apparatus for atomizing a fluid is disclosed. The processes and apparatuses are useful for atomizing a feed oil for a fluid cat cracking (FCC) or other suitable process.Type: ApplicationFiled: April 2, 2001Publication date: November 22, 2001Inventors: Jackson I. Ito, Leoonard Schoenman, Sandi Schoenman, Dean C. Draemel, Teh C. Ho, George A. Swan
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Publication number: 20010000600Abstract: An atomizing gas, such as steam, and a hot fluid comprising a hot liquid to be atomized, are passed under pressure, through separate fluid conduits in a heat exchange means, in which the hot liquid heats the steam to a superheat temperature, by indirect heat exchange. The superheated steam is then injected into the hot fluid, which comprises a two-phase fluid comprising steam and the hot liquid, subsequent to the superheated steam injection. The two-phase fluid is passed through an atomizing means, such as an orifice, into a lower pressure atomizing zone, which causes the steam to expand and atomize the liquid into a spray of liquid droplets. The two-phase fluid is formed before or as a consequence of the superheated steam injection and is preferably steam-continuous when passed through the atomizing means. This process is useful for atomizing a hot feed oil for a fluid cat cracking (FCC) process.Type: ApplicationFiled: December 13, 2000Publication date: May 3, 2001Inventors: Jackson I. Ito, Leonard Schoenman, Dean C. Draemel, Teh C. Ho, George A. Swan
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Patent number: 6171476Abstract: A cavitation enhanced atomizing process comprises forming a flowing solution of the liquid to be atomized and a lower boiling cavitating liquid. This flowing solution is then contacted with a pressure reducing means, at a temperature below the bubble point of the cavitating liquid in the solution, to produce cavitation bubbles. These bubbles comprise cavitation liquid vapor and the bubble nucleation produces a two-phase fluid of the bubbles and liquid solution. The two-phase fluid is passed downstream into and through an atomizing means, such as an orifice, and into a lower pressure atomizing zone, in which the bubbles vaporize to form a spray of liquid droplets. The nucleated bubbles also grow in size as the so-formed two-phase fluid passes downstream to and through the atomizing means.Type: GrantFiled: March 18, 1999Date of Patent: January 9, 2001Assignee: Exxon Research and Engineering CompanyInventors: Dean C. Draemel, Nicholas C. Nahas, Teh Chung Ho