Patents by Inventor Pieter B. Kwant

Pieter B. Kwant 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).

  • Process for the preparation of hydrocarbon oil distillates
    Patent number: 4400264
    Abstract: Distillates are prepared from asphaltenes-rich feeds by a process comprising subjecting the feed to thermal cracking, and subjecting the distillation residue of the cracked product to a combination of solvent deasphalting and catalytic hydroconversion.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: August 23, 1983
    Assignee: Shell Oil Company
    Inventors: Pieter B. Kwant, John R. Newsome
  • Process for the preparation of gas oil
    Patent number: 4201659
    Abstract: A process is disclosed for the conversion of asphaltines-containing mineral hydrocarbon oil to distillate gas oil by a processing sequence comprising thermal cracking, flashing, atmospheric fractionation, vacuum fractionation, thermal cracking, catalytic cracking or hydrocracking, and atmospheric fractionation with certain recycle of intermediate streams to achieve efficient, economic operations.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: May 6, 1980
    Assignee: Shell Oil Company
    Inventors: Pieter B. Kwant, Dirk Kanbier, Petrus W. H. L. Tjan, Mohammed Akbar
  • Process for the preparation of gas oil
    Patent number: 4200519
    Abstract: A process for the preparation of gas oil from residual oils by combination of two stages of thermal cracking, cyclone separation, vacuum distillation, deasphalting, atmospheric distillation, and recycling of certain streams.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: April 29, 1980
    Assignee: Shell Oil Company
    Inventors: Pieter B. Kwant, Dirk Kanbier, Petrus W. H. L. Tjan, Mohammed Akbar
  • Process for preparing hydrocarbons
    Patent number: 4183801
    Abstract: A process for preparing light distillate fractions and medicinal oil from heavy hydrocarbon oils comprises two-stage hydrocracking, fractionation distillation and catalytic hydrotreatment of at least part of the fractionation residue.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: January 15, 1980
    Assignee: Shell Oil Company
    Inventors: Jacobus H. Breuker, Hubertus N. H. DeHaan, Pieter B. Kwant
  • Process for the preparation of synthetic crude oil
    Patent number: 4165274
    Abstract: Process for treatment of tars and oil, the process being characterized by distillation of the oil to form a vacuum distillate and vacuum residue, hydrocracking of the distillate, deasphalting of the residue, and hydrodemetallizing and hydrodesulphurizing the deasphalted residue.
    Type: Grant
    Filed: June 13, 1978
    Date of Patent: August 21, 1979
    Assignee: Shell Oil Company
    Inventor: Pieter B. Kwant
  • Process for the fluoriding of a catalyst
    Patent number: 4032474
    Abstract: A process is disclosed for "in-situ" fluoriding of catalyst in a fixed bed wherein an amount of a fluorine is provided which is in excess by at least an average of 10%w of the amount of fluorine absorbed by the catalyst resulting in more efficient, uniform catalyst.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: June 28, 1977
    Assignee: Shell Oil Company
    Inventors: Frans Goudriaan, Pieter B. Kwant