Patents by Inventor George Henry Webster, Jr.

George Henry Webster, Jr. 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).

  • Minimizing evaporator scaling and recovery of salts during gasification
    Patent number: 6086722
    Abstract: A process for minimizing evaporator scaling during the recovery of liquids and solids from the aqueous effluent discharged during a partial oxidation gasification, wherein the aqueous effluent contains ammonium chloride (NH.sub.4 Cl). The aqueous effluent is evaporated to produce a distillate water and a brine having an NH.sub.4 Cl concentration of about 10 to 60 weight percent. The brine can be further concentrated and ammonium chloride crystals are recovered. The distillate water is recycled to the gasification reaction. No effluent discharges to the environment.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: July 11, 2000
    Assignee: Texaco Inc.
    Inventors: George Henry Webster, Jr., Byron Von Klock, Dinh-Cuong Vuong, John Saunders Stevenson, Steven Robert Johnson
  • Removal of fluoride-containing scales using aluminum salt solution
    Patent number: 5993558
    Abstract: Fluoride-containing scale can be removed from metal surfaces such as titanium, titanium alloys, nickel alloys, and stainless steel by contacting the metal surfaces with an aqueous salt solution of an inorganic acid, including its hydrates. The cationic portion of the salt can be aluminum, iron and mixtures thereof. The anionic portion of the salt can be a chloride, a nitrate, a sulfate, and mixtures thereof. The contracting occurs in the absence of the addition of an acid, such as hydrochloric, nitric, or sulfuric acid. The presence of the aqueous salt solution with the dissolved fluoride scale does not accelerate or increase the normal rate of metal corrosion that can occur in the absence of the aqueous salt solution or any acidic cleaning agent.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: November 30, 1999
    Assignee: Texaco Inc.
    Inventors: George Henry Webster, Jr., Byron Von Klock
  • Method for minimizing hydrogen halide corrosion in a partial oxidation process
    Patent number: 5866091
    Abstract: The present invention relates to a method for minimizing hydrogen halide corrosion in quench gasifier during the non-catalytic partial oxidation reaction of a halogen-containing hydrocarbonaceous feed, to produce a hydrogen halide-containing synthesis gas, finely divided particulate solids, and a nontoxic slag. The hydrogen halide-containing synthesis gas is contacted with water in the quench zone of the gasifier. The quench water contains a neutralizing agent, in excess of the amount necessary to neutralize hydrogen halide acids present therein, to thereby form halide salts. The quench water containing the halide salts is purified to recover the halide salts. The salt-free water is essentially environmentally non-toxic and can either be recycled to the process or discarded in conformity with environmental regulations.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: February 2, 1999
    Assignee: Texaco Inc
    Inventors: John Saunders Stevenson, Byron Von Klock, John Duckett Winter, Jerrold Samuel Kassman, George Henry Webster, Jr., Paul Ellis Brickhouse