Patents by Inventor Gerrit S. Swart

Gerrit S. Swart 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).

  • Reforming with two fixed-bed units, each having a moving-bed tail reactor sharing a common regenerator
    Patent number: 5417843
    Abstract: A process for reforming a gasoline boiling range naphtha stream using a reforming process unit comprised of two independent process units, each of which are operated in two stages. The first stage is operated in a fixed-bed mode and is comprised of a plurality of serially connected fixed bed reactors, and the second stage is operated in a moving bed continuous catalyst regeneration mode. A hydrogen-rich stream is recycled through both stages for each process unit and the moving-bed reforming zones share a common regeneration zone.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: May 23, 1995
    Assignee: Exxon Research & Engineering Co.
    Inventors: Gerrit S. Swart, Stuart S. Goldstein, Paul W. Kamienski, George A. Swan, III
  • Fixed-bed/moving-bed two stage catalytic reforming
    Patent number: 5354451
    Abstract: A two stage process for catalytically reforming a gasoline boiling range hydrocarbonaceous feedstock. The reforming is conducted in two stages wherein the first stage is operated in a fixed-bed mode, and the second stage is operated in a moving-bed continual catalyst regeneration mode. A gaseous stream comprised of hydrogen and predominantly C.sub.4.sup.-- hydrocarbon gases are separated between stages. A portion of the hydrogen-rich gaseous stream is recycled and the remaining portion along with the C.sub.5.sup.+ stream are sent to second stage reforming.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: October 11, 1994
    Assignee: Exxon Research and Engineering Company
    Inventors: Stuart S. Goldstein, Paul W. Kamienski, David W. Staubs, Gerrit S. Swart, George A. Swan, III
  • Fixed-bed/moving-bed two stage catalytic reforming with recycle of hydrogen-rich stream to both stages
    Patent number: 5221463
    Abstract: A two stage process for catalytically reforming a gasoline boiling range hydrocarbonaceous feedstock. The reforming is conducted in two stages wherein the first stage is operated in a fixed bed mode, and the second stage is operated in a moving bed continuous catalyst regeneration mode. A hydrogen-rich stream is recycled through both stages.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: June 22, 1993
    Assignee: Exxon Research & Engineering Company
    Inventors: Paul W. Kamienski, Gerrit S. Swart
  • Fixed-bed/moving-bed two stage catalytic reforming with interstage aromatics removal
    Patent number: 5211838
    Abstract: A two stage process for catalytically reforming a gasoline boiling range hydrocarbonaceous feedstock. The reforming is conducted in two stages wherein the first stage is operated in a fixed bed mode, and the second stage is operated in a moving bed continual catalyst regeneration mode. A gaseous stream comprised of hydrogen and predominantly C.sub.4.sup.- and a C.sub.5.sup.+ liquid stream are produced between stages. A portion of the hydrogen-rich stream is recycled and the and the remaining portion and an aromatics-lean stream, which is obtained during aromatics separation between stages, is sent to second stage reforming.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: May 18, 1993
    Assignee: Exxon Research & Engineering Company
    Inventors: Staubs, David W., Stuart S. Goldstein, Paul W. Kamienski, Gerrit S. Swart, George A. Swan, III, Kenneth R. Clem
  • Hydrogen recycle between stages of two stage fixed-bed/moving-bed unit
    Patent number: 5196110
    Abstract: A two stage catalytic reforming process. The first stage is comprised of two separate fixed-bed reforming units each comprised of one or more serially connected fixed-bed reforming zones. The second stage is comprised of one or more moving-bed reforming zones with continual catalyst regeneration. A hydrogen-rich gaseous stream is separated after each fixed-bed unit and a portion is recycled to the respective fixed-bed reforming zones.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: March 23, 1993
    Assignee: Exxon Research and Engineering Company
    Inventors: Gerrit S. Swart, Paul W. Kamienski, Stuart S. Goldstein, David W. Staubs, George A. Swan, III
  • Multiple fixed-bed reforming units sharing common moving bed reactor
    Patent number: 5190639
    Abstract: A reforming system for reforming gasoline boiling range hydrocarbon streams, which system is comprised of two or more parallel fixed-bed reforming stages sharing a common moving-bed reforming stage.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: March 2, 1993
    Assignee: Exxon Research and Engineering Company
    Inventors: Gerrit S. Swart, Paul W. Kamienski, Stuart S. Goldstein
  • Reforming and isomerization process
    Patent number: 4432862
    Abstract: A reformate lean oil absorber is used in the downstream processing facilities of a reformer unit to remove isobutane and heavier components from a separator overhead vapor, part of which is reformer recycle gas. Stabilized reformate may be employed as lean oil to the absorber, and the fat oil is recycled to the stabilizer for isobutane recovery of isobutane and normal butane as overhead product and C.sub.5.sup.+ liquid as bottoms product. The mixed butanes are separated, and the isobutane employed as alkylation feedstock. The n-butane is recycled with the naphtha to the reformer unit, the absence of butanes in the recycle gas considerably enhancing the amount of isobutane produced in the reforming unit.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: February 21, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventors: Gerrit S. Swart, Louis S. Dauber, Richard P. O'Connor