Patents Assigned to D4 Energy Group, Inc.
  • Patent number: 10240091
    Abstract: Provided herein is a method for devolatizing a solid feedstock. The solid feedstock is treated to a produce a particle size laying between 1 cm3 and 100 cm3. The solid feedstock is passed into a device connected to an outlet of a compaction screw auger comprising an assembly including a solid feedstock injector, a retort, a side arm for injecting a heated gas comprising hydrogen, and a process auger. The solid feedstock is contacted with the heated gas at a temperature of 500° C. to 1000° C. for a time of 60 seconds to 120 seconds, whereby the solid feedstock is converted into a gas stream and a solid stream.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: March 26, 2019
    Assignee: D4 Energy Group, Inc.
    Inventors: David Earle Hayward, Marvin Ronnie Baker
  • Patent number: 9605211
    Abstract: Provided herein is a method, device and installation for devolatizing a solid feedstock, comprising carbon-based waste selected from the group consisting of hazardous material, biomass, animal manure, tires, municipal solid waste and refuse derived fuel. The method comprises treating the solid feedstock to a produce a particle size laying between about 1 cm3 and about 100 cm3. The solid feedstock is passed into a jacketed system which includes a solid feedstock injector, a retort, a side arm for injecting a heated gas, and a process auger. The solid feedstock is contacted with a heated gas, comprising hydrogen, inside the jacketed system at a temperature of about 500° C. to about 1000° C. for a time of about 60 seconds to about 120 seconds, whereby the solid feedstock is converted into a gas stream and a solid stream.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: March 28, 2017
    Assignee: D4 Energy Group, Inc.
    Inventors: David Earle Hayward, Marvin Ronnie Baker