Patents by Inventor Elwood V. Schulte

Elwood V. Schulte 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 minimizing the deposition of materials in the ammonia liquor coolers in the coking of carbonaceous materials
    Patent number: 4244711
    Abstract: A process is provided for minimizing the deposition of materials like naphthalene and tar in the ammonia liquor coolers of the primary cooler in a by-product recovery process for coking carbonaceous materials. The ammonia liquor coming from the primary cooler, wherein it is used to cool the coke oven gas, has added to it light oil before it reaches the ammonia liquor coolers, where it is cooled indirectly with water. The addition of the light oil keeps the naphthalene and tar in solution at the lower temperatures of the ammonia liquor coolers, thereby reducing or preventing the deposition of the naphthalene and tar in the ammonia liquor coolers.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: January 13, 1981
    Assignee: Koppers Company, Inc.
    Inventor: Elwood V. Schulte