Patents by Inventor Beverley Payne

Beverley Payne 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).

  • Patent number: 4879014
    Abstract: Process for removal of organic acids from bitumen comprising(a) Bitumen is diluted with low-density hydrocarbons.(b) A dilute solution of caustic soda in water is intimately mixed with the diluted bitumen.(c) A demulsifying chemical is added to weaken the interfacial layers between the bitumen phase and the aqueous phase.(d) Coalescence between the droplets of the dispersed aqueous phase is achieved in an electrostatic dehydration vessel. Separation between the bitumen and aqueous phase is effected in the vessel.(e) The acid-reduced bitumen is removed from the top of the coalescer and the aqueous organic salt solution from its bottom.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: November 7, 1989
    Assignee: Shell Oil Company
    Inventors: Hermanus G. van Laar, Richard H. Lea, Beverley Payne