System and method for biogasification
AssigneeWaste to Energy Systems, LLC
InventorsRichard Woods, Frank Larmon, Alejandro Martinez, Alissa Woods Mahoney, David McBurnett
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Abstract
Embodiments of the invention improve the performance, safety, and efficiency of the gasification process. Embodiments of the invention improve downdraft gasification by improving upon the systems and methods for fuel preparation and by addressing gasifier bridging and channeling. Unique parts of the system include a unique hearth and grate design, a programmable logic controller and interface for managing the gasification process, an improved filtration system, a unique system for eliminating mist, a unique system for cooling gas, a unique combined flare, an integrated auger system, and a new system and method for sampling gas.
Claims15
An apparatus for biogasification which comprises the following units:
- a. a chiller/renewable packed bed filter connection assembly;
- b. a gasifier wherein the gasifier further comprises a renewable packed bed filter, a rectilinear cyclonic cooler wherein the rectilinear cyclonic cooler is operably connected to the output of the gasifier and a rectilinear cyclonic cooler transition assembly wherein the rectilinear cyclonic cooler transition assembly operably connects the rectilinear cyclonic cooler to the chiller/renewable packed bed filter connection assembly wherein the renewable packed bed filter is the operable connection between the chiller and the rectilinear cyclonic cooler and is operably connected to the output of the rectilinear cyclonic cooler transition assembly and the input of the chiller/renewable packed bed filter connection assembly wherein the gasifier further comprises:
- i. a fuel transport system;
- ii. a gasifier frame wherein the gasifier frame further comprises the gasifier and;
- c. a primary flare assembly wherein the gasifier is operably connected to the input of the primary flare assembly and wherein the primary flare assembly further comprises a thermocouple assembly T1 which further comprises:
- i. a coupling;
- ii. a thermocouple with shield;
- and
- iii. a PLC Transmitter:
- d. a pressure-based feedback system wherein the pressure-based feedback system further comprises a cooler-hearth differential pressure assembly that is operably connected to the output of the rectilinear cyclonic cooler;
- e. an integrated auger system wherein the integrated auger system further comprises:
- i. an auger collecting assembly wherein the auger collecting assembly further comprises:
- 1. A motor drive;
- 2. A waste collect barrel;
- 3. An upward auger pipe and screw;
- 4. A knife valve;
- and
- 5. a soot transition box with bearings wherein the soot transition box with bearings further comprises a collection area for waste from multiple components of the system;
- ii. an auger removal assembly wherein the auger removal assembly further comprises:
- 1. A renewable packed bed filter auger;
- and
- 2. a cooler/ash module auger
- f. a chiller wherein the chiller is operably connected to the rectilinear cyclonic cooler and wherein the chiller further comprises:
- i. a mesh impingement pad;
- ii. a hydrophilic condenser;
- iii. a mist elimination system connector portion;
- and
- iv. a Water Scrubber;
- g. a mist elimination system wherein the mist elimination system is operably connected to the output of the chiller via a mist elimination system connector portion;
- h. a mist to hydrophobic connection assembly wherein the input of the mist to hydrophobic connection system is operably connected to the output of the mist elimination system;
- i. a chiller differential pressure sensor assembly wherein the chiller differential pressure sensor assembly further comprises:
- i. a demister pressure sensor;
- ii. a chiller differential pressure sensor with transmitter wherein the chiller differential pressure sensor with transmitter is a mechanism to evaluate the pressure differences between the cyclonic cooler and transition box, and transmit sensor data to the PLC and is positioned outside the gasifer and rectilinear cyclonic cooler;
- and a Threaded Connection with Nipple which is positioned within the mist to hydrophobic connection assembly
- j. a single blower assembly which further comprises a blower wherein the blower is positioned after the input of the blower assembly located in such a position as to create a partial vacuum throughout the above mentioned units and wherein the output of the mist to hydrophobic connection assembly is upstream from the input of the blower assembly;
- k. an exit pipe assembly wherein the input of the exit pipe assembly is operable connected to the output of the blower assembly;
- l. a PLC computer;
- and
- m. a tar and particulate sampling system.
Dependencies are inferred from the claim text.