Patents by Inventor Eric H. Hekelaar

Eric H. Hekelaar 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).

  • Dehydration of 1-phenyl ethanol
    Patent number: 8088963
    Abstract: A process for the production of styrene is described. The process comprises dehydrating 1-phenyl ethanol in the liquid phase in the presence of a para- and ortho-toluenesulfonic acid mixture. The ratio of para-toluenesulfonic acid to ortho-toluenesulfonic acid is from 1:9 to 20:1. The process results in reduced heavies production, improved 1-phenyl ethanol conversion and selectivity, less reactor tube fouling, and lower corrosion rates.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: January 3, 2012
    Assignee: Lyondell Chemical Technology, L.P.
    Inventors: Erik C. Wijnbelt, Eric H. Hekelaar
  • Dehydration of 1- Phenyl Ethanol
    Publication number: 20100240939
    Abstract: A process for the production of styrene is described. The process comprises dehydrating 1-phenyl ethanol in the liquid phase in the presence of a para- and ortho-toluenesulfonic acid mixture. The ratio of para-toluenesulfonic acid to ortho-toluenesulfonic acid is from 1:9 to 20:1. The process results in reduced heavies production, improved 1-phenyl ethanol conversion and selectivity, less reactor tube fouling, and lower corrosion rates.
    Type: Application
    Filed: March 23, 2009
    Publication date: September 23, 2010
    Inventors: Erik C. Wijnbelt, Eric H. Hekelaar