Patents by Inventor Oleksiy Golovchenko

Oleksiy Golovchenko 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).

  • Heat management in ethylene oligomerization
    Patent number: 10160696
    Abstract: The oligomerization of ethylene using a chromium catalyst having a heteroatomic ligand may be used to provide oligomerization products that are selective towards hexene and/or octene. However, such processes also typically produce some polymer as an undesirable by product. The present invention is directed towards improvements in the selective oligomerization of ethylene.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: December 25, 2018
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Isam Jaber, Ian Ronald Jobe, P Scott Chisholm, Andrzej Krzywicki, Charles Ashton Garret Carter, Vernon Lindsay Strom, Kamal Elias Serhal, Eric Clavelle, Stephen John Brown, Yves Lacombe, Anita Sylvia Magis, Mackenzie Alexander Harris, Russell Kirk Archer, Keith WAyne Besenski, Michel Berghmans, Oleksiy Golovchenko, Dale Alexander Sieben
  • HEAT MANAGEMENT IN ETHYLENE OLIGOMERIZATION
    Publication number: 20160237000
    Abstract: The oligomerization of ethylene using a chromium catalyst having a heteroatomic ligand may be used to provide oligomerization products that are selective towards hexene and/or octene. However, such processes also typically produce some polymer as an undesirable by product. The present invention is directed towards improvements in the selective oligomerization of ethylene.
    Type: Application
    Filed: April 22, 2016
    Publication date: August 18, 2016
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Isam Jaber, Ian Ronald Jobe, P. Scott Chisholm, Andrzej Krzywicki, Charles Ashton Garret Carter, Vernon Lindsay Strom, Kamal Elias Serhal, Eric Clavelle, Stephen John Brown, Yves Lacombe, Anita Sylvia Magis, Mackenzie Alexander Harris, Russell Kirk Archer, Keith Wayne Besenski, Michel Berghmans, Oleksiy Golovchenko, Dale Alexander Sieben
  • BULK ETHYLENE OLIGOMERIZATION USING A LOW CONCENTRATION OF CHROMIUM CATALYST AND THREE-PART ACTIVATOR
    Publication number: 20140142360
    Abstract: This invention enables the “bulk” oligomerization of ethylene (i.e. the oligomerization of ethylene in the presence of the oligomer product) using a catalyst system comprising 1) a very low concentration of a chromium catalyst and 2) a three part activator. The chromium catalyst contains a diphosphine ligand, preferably a so called P—N—P ligand. The activator includes an aluminoxane, trimethyl aluminum, and triethyl aluminum.
    Type: Application
    Filed: July 25, 2012
    Publication date: May 22, 2014
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Stephen John Brown, Charles Ashton Garret Carter, P. Scott Chisholm, Peter Zoricak, Oleksiy Golovchenko
  • Activation for Oligomerization
    Publication number: 20120271087
    Abstract: The oligomerization of ethylene using a chromium catalyst and an aluminoxane activator is well known. The undesired formation of polyethylene as a by-product is also known to occur during prior oligomerization processes. We have discovered that the use of an aluminoxane that is prepared by non-hydrolytic means provides a highly productive activator (co-catalyst) for ethylene oligomerization and mitigates the undesired formation of by-product polyethylene.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 25, 2012
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Stephen John Brown, Charles Ashton Garret Carter, P. Scott Chisholm, Isam Jaber, Ian Ronald Jobe, Oleksiy Golovchenko
  • IN SITU REMOVAL OF IRON COMPLEXES DURING CRACKING
    Publication number: 20120149962
    Abstract: The presence of complexes predominantly of iron and one or more of chromium, nickel and oxygen and mixtures thereof on the surface of a stainless steel exposed to a feed stream containing hydrocarbons at elevated temperatures tends to give rise to decomposition products of the hydrocarbon. The amount of iron complexes may be reduced in situ without stopping the process by adding to the feed stream 0.001 to 1 vol % a silane and optionally from 0 to 500 ppm based on the weight of the feed stream of sulphur or a sulphur containing compound.
    Type: Application
    Filed: November 10, 2011
    Publication date: June 14, 2012
    Inventors: Vasily Simanzhenkov, Oleksiy Golovchenko, Andrzej Krzywicki
  • HEAT MANAGEMENT IN ETHYLENE OLIGOMERIZATION
    Publication number: 20120142989
    Abstract: The oligomerization of ethylene using a chromium catalyst having a heteroatomic ligand may be used to provide oligomerization products that are selective towards hexene and/or octene. However, such processes also typically produce some polymer as an undesirable by product. The present invention is directed towards improvements in the selective oligomerization of ethylene.
    Type: Application
    Filed: November 10, 2011
    Publication date: June 7, 2012
    Inventors: Isam Jaber, Ian Ronald Jobe, P. Scott Chisholm, Andrzej Krzywicki, Charles Ashton Garret Carter, Vernon Lindsay Strom, Kamal l Elias Serhal, Eric Clavelle, Stephen John Brown, Yves Lacombe, Anita Sylvia Magis, Mackenzie Alexander Harris, Russell Kirk Archer, Keith Wayne Besenski, Michel Berghmans, Oleksiy Golovchenko, Dale Alexander Sieben