Patents by Inventor Willibald Serrand
Willibald Serrand 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: 6652739Abstract: An improved process for deasphalting a residua feedstock by use of a short vapor residence time process unit comprised of a horizontal moving bed of fluidized and/or stirred hot particles. The vapor phase product stream from said process unit is passed to a soaker drum where a high boiling fraction is separated and recycled to the process unit after undergoing reactions causing molecular weight growth. This reactive recycle using the soaker drum results in substantially improved qualities of the liquid products compared with what is achieved by once-through residua deasphalting process alternatives.Type: GrantFiled: October 29, 2002Date of Patent: November 25, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Mitchell Jacobson, Willibald Serrand, Norman H. Sweed, Hans J. M. Weiss, Ingo W. Dreher, Udo Zentner, Jorg H. Schmalfeld
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Publication number: 20030121828Abstract: An improved process for deasphalting a residua feedstock by use of a short vapor residence time process unit comprised of a horizontal moving bed of fluidized and/or stirred hot particles. The vapor phase product stream from said process unit is passed to a soaker drum where a high boiling fraction is separated and recycled to the process unit after undergoing reactions causing molecular weight growth. This reactive recycle using the soaker drum results in substantially improved qualities of the liquid products compared with what is achieved by once-through residua deasphalting process alternatives.Type: ApplicationFiled: October 29, 2002Publication date: July 3, 2003Inventors: Mitchell Jacobson, Willibald Serrand, Norman H. Sweed, Hans J.M. Weiss, Ingo W. Dreher, Udo Zentner, Jorg H. Schmalfeld
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Patent number: 6352638Abstract: A two-stage process for converting petroleum residua and other low value oils to high valued gasoline blendstocks and light olefins. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated at temperatures from about 500 to 600° C. and having a short vapor residence time, and the second stage is comprised of a catalytic conversion zone operated at a temperature of about 525° C. to about 650° C., and also having a short vapor residence time, preferably shorter than that of the first stage reaction zone.Type: GrantFiled: December 13, 2000Date of Patent: March 5, 2002Assignee: Exxon Research and Engineering CompanyInventors: Mitchell Jacobson, Willibald Serrand
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Publication number: 20010000399Abstract: A two-stage process for converting petroleum residua and other low value oils to high valued gasoline blendstocks and light olefins. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated at temperatures from about 500 to 600° C. and having a short vapor residence time, and the second stage is comprised of a catalytic conversion zone operated at a temperature of about 525° C. to about 650° C., and also having a short vapor residence time, preferably shorter than that of the first stage reaction zone.Type: ApplicationFiled: December 13, 2000Publication date: April 26, 2001Inventors: Mitchell Jacobson, Willibald Serrand
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Patent number: 6179993Abstract: A process for obtaining a substantial amount of olefinic products from a residual feedstock by use of a vapor short contact time conversion process unit comprised of a bed of fluidized heat transfer solids. The vapor short contact time process unit is operated at conditions which includes steam dilution to reduce partial pressure of hydrocarbon vapors and a vapor residence time less than about 0.5 seconds.Type: GrantFiled: February 21, 1997Date of Patent: January 30, 2001Assignee: Exxon Chemical Patents Inc.Inventors: Noel M. Seimandi, Tony T. Cheng, Willibald Serrand, Mitchell Jacobson, Paul K. Ladwig, John F. Pagel, Michael R. Parrish, Hans A. Weisenberger
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Patent number: 5952539Abstract: A process for producing normally gaseous olefins from two different process units sharing common downstream quench and fractionation facilities, wherein one of the process units is a short contact time mechanically fluidized vaporization unit for processing petroleum residual feedstocks and the other is a conventional steam cracking unit.Type: GrantFiled: February 21, 1997Date of Patent: September 14, 1999Assignee: Exxon Chemical Patents Inc.Inventors: Noel M. Seimandi, Tony T. Cheng, Willibald Serrand, Mitchell Jacobson, Paul K. Ladwig, John F. Pagel, Michael R. Parrish, Hans A. Weisenberger
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Patent number: 5919352Abstract: A process wherein a residuum feedstock is upgraded in a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles, then fed to a fluid catalytic cracking process unit. Hot flue gases from the fluid catalytic cracking unit is used to circulate solid particles and to provide process heat to the thermal process unit.Type: GrantFiled: July 17, 1997Date of Patent: July 6, 1999Assignee: Exxon Research and Engineering Co.Inventors: Willibald Serrand, David G. Hammond, Mitchell Jacobson, John F. Pagel, Martin C. Poole
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Patent number: 5879535Abstract: A two-stage process for obtaining a substantial amount of olefinic product from a residua feedstock. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated at temperatures from about 500.degree. to 600.degree. C. and having a short vapor residence time, and the second stage thermal conversion zone operated at a temperature of about 700.degree. C. to about 1100.degree. C., and also having a short vapor residence time.Type: GrantFiled: December 17, 1996Date of Patent: March 9, 1999Assignee: Exxon Research and Engineering CompanyInventors: Willibald Serrand, Mitchell Jacobson, Michael R. Parrish, David G. Hammond
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Patent number: 5879536Abstract: A two-stage process for obtaining a substantial amount of olefinic product from a residua feedstock. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated at temperatures from about 500.degree. to 600.degree. C. and having a short vapor residence time, and the second stage thermal conversion zone operated at a temperature of about 700.degree. C. to about 1100.degree. C., and also having a short vapor residence time.Type: GrantFiled: December 17, 1996Date of Patent: March 9, 1999Assignee: Exxon Research and Engineering CompanyInventors: Willibald Serrand, Mitchell Jacobson
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Patent number: 5714663Abstract: A process for obtaining a substantial amount of olefinic products from a residua feedstock by use of a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles.Type: GrantFiled: February 23, 1996Date of Patent: February 3, 1998Assignee: Exxon Research and Engineering CompanyInventors: Willibald Serrand, Mitchell Jacobson, Paul K. Ladwig, John F. Pagel, Michael R. Parrish, Noel Seimandi, Hans A. Weisenberger
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Patent number: 5714056Abstract: A process for deasphalting a residua feedstock by use of a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. It is preferred that a mechanical means be used to fluidize a bed of hot particles.Type: GrantFiled: July 17, 1995Date of Patent: February 3, 1998Assignee: Exxon Research and Engineering CompanyInventors: David G. Hammond, Mitchell Jacobson, John F. Pagel, Martin C. Poole, Willibald Serrand
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Patent number: 5658455Abstract: An improved fluidized bed coking process wherein a residuum feedstock is introduced into a first stage comprised of a short vapor contact time reactor containing a horizontal moving bed of fluidized hot particles. Carbonaceous material is deposited onto the hot particles on contact with the hot particles, and a vapor product is produced. The hot particles, containing the carbonaceous deposits, are fed to a second stage fluidized bed coking process.Type: GrantFiled: July 17, 1995Date of Patent: August 19, 1997Assignee: Exxon Research & Engineering CompanyInventors: David G. Hammond, Mitchell Jacobson, John F. Pagel, Martin C. Poole, Robert C. Green, Willibald Serrand
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Patent number: 5365006Abstract: An alkane-containing feedstream is passed through one or more tubes, which may contain alkane-dehydrogenation catalyst, immersed in a bed of fluidized particles. The bed is at an elevated temperature which maintains the temperature within the tube(s) at an alkane-dehydrogenation temperature. The particles may be inert, chemically active and/or catalytically active. In one embodiment, cracking catalyst particles are circulated between a reaction zone wherein they contact a cracker feedstock which is converted to cracked hydrocarbon products and a regenerator (22) wherein carbonaceous deposits on the catalyst particles are exothermically removed by contact with an oxygen-containing gas (24). Hot regenerated particles from the regenerator (22) are recirculated (27) to the reaction zone for re-use therein.Type: GrantFiled: December 31, 1992Date of Patent: November 15, 1994Assignee: Exxon Research and Engineering CompanyInventor: Willibald Serrand
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Patent number: 5348642Abstract: A catalytic cracking process and apparatus wherein particles of cracking catalyst circulate continuously between a reaction zone and a regeneration zone and hot regenerated catalyst from the regeneration zone contacts hydrocarbon feed in the reaction zone to produce cracked hydrocarbon products and spent catalyst. The spent catalyst is recovered and subjected to stripping in a stripping zone to remove strippable material therefrom. The stripped spent catalyst is circulated to the regeneration zone for oxidative exothermic regeneration. Some hot regenerated catalyst is passed directly from the regenerator to the stripping zone via a conduit provided for this purpose. Another hydrocarbon stream is passed into contact with the hot regenerated catalyst in this conduit. The said other hydrocarbon stream is converted to products of enhanced value (e.g., olefins) during contact with catalyst in the conduit, and the said products are recovered.Type: GrantFiled: February 11, 1993Date of Patent: September 20, 1994Assignee: Exxon Research Engineering Co.Inventors: Willibald Serrand, Philip Holmes, Todd R. Steffens, Patrick H. Terry, Paul E. Eberly
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Patent number: 5023069Abstract: Claus tail-gas containing H.sub.2 S and SO.sub.2 in a mol ratio of 2:1 is passed in contact with a catalyst-adsorbent bed (19A) at a temperature of 135.degree. to 150.degree. C. and a space velocity of 50 to 1500 h.sup.-1 whereby elemental sulfur produced by the reaction of H.sub.2 S and SO.sub.2 is deposited upon and/or adsorbed on said bed. The resulting sulfurous gas mixture is cooled by indirect heat exchange (26) to a temperature of 120.degree. to 135.degree. C. and liquid elemental sulfur is recovered (27,54,55,101) the sulfurous gas (28) thereafter being cooled and diluted by adding cool inert gas (34) thereto to maintain the water partial pressure below the saturation vapor pressure, and the cooled diluted gas mixture is contacted with a bed of catalyst-adsorbent (32A) at a temperature of 90.degree. to 125.degree. C. whereby further elemental sulfur is produced by the reaction of SO.sub.2 and H.sub.2 S.Type: GrantFiled: March 8, 1989Date of Patent: June 11, 1991Assignee: Exxon Research & Engineering CompanyInventor: Willibald Serrand