Patents by Inventor John A. Pryor

John A. Pryor 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).

  • Recovery of C.sub.2 + hydrocarbons by plural stage rectification and first stage dephlegmation
    Patent number: 4002042
    Abstract: A process is provided for the separation and recovery of a major portion of the C.sub.2 + hydrocarbon content of a feed gas comprising hydrogen, methane, ethylene, and ethane. The feed gas is introduced to a dephlegmator to effect its separation into a vapor stream and a condensate stream. The condensate stream which is rich in C.sub.2 + hydrocarbons is passed to a demethanizer column where it is fractionated into an overhead methane-hydrogen stream and a bottoms product ethylene-ethane+ stream.
    Type: Grant
    Filed: November 27, 1974
    Date of Patent: January 11, 1977
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John A. Pryor, Howard C. Rowles