Method and apparatus for gasification of biogenic material
AssigneeWild Hydrogen Limited
InventorsMark WICKHAM, Andre GREEFF
Life of this patent
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Abstract
There is provided a method and apparatus for producing hydrogen gas from biogenic material (210) within a pressure vessel (10). The method comprises heating a granular material (15) to greater than 500° C., adding a batch of biogenic material (210) into the pressure vessel with the heated granular material (15) at atmospheric pressure, closing the pressure vessel, and mixing the heated granular material (15) with the biogenic material (210) inside the closed pressure vessel (10) to raise the temperature of the biogenic material (210) and commence gasification, the gasification producing gas that increases the pressure inside the pressure vessel (10), the produced gas comprising hydrogen gas.
Claims21
A method of producing hydrogen gas from biogenic material within a pressure vessel, comprising heating a granular material to greater than 500° C., adding a batch of biogenic material into the pressure vessel with the heated granular material at atmospheric pressure, closing the pressure vessel, and mixing the heated granular material with the biogenic material inside the closed pressure vessel to raise the temperature of the biogenic material and commence gasification, the gasification producing gas that increases the pressure inside the pressure vessel, the produced gas comprising hydrogen gas.
The method of any preceding claim, wherein the biogenic material is composed of particles, the particles having different sizes from one another and optionally different levels of moisture content from one another.
The method of any preceding claim, wherein adding a batch of biogenic material into the pressure vessel at atmospheric pressure comprises loading the biogenic material into a cartridge, and sliding the cartridge into an end of the pressure vessel, the granular material residing at an opposite end of the pressure vessel from the cartridge.
The method of any preceding claim, further comprising pumping gas into the pressure vessel to purge it of oxygen, prior to the mixing of the heated granular material with the biogenic material.
The method of any preceding claim, further comprising pumping water or steam into the pressure vessel to induce a water-gas shift reaction subsequent to or during the mixing of the heated granular material with the biogenic material.
The method of any preceding claim, further comprising discharging the hydrogen gas under pressure from the pressure vessel after the gasification, preferably wherein the hydrogen is outlet from an opposite end of the pressure vessel from an end of the pressure vessel where the granular material is present.
The method of any preceding claim, wherein the granular material comprises calcium oxide, wherein the gas produced by the gasification comprises carbon dioxide, and wherein the carbon dioxide reacts with calcium oxide to produce calcium carbonate.
An apparatus for producing hydrogen gas from biogenic material, the apparatus comprising a pressure vessel configured to store a granular material that is heated to at least 500° C., the pressure vessel comprising a head that is openable to add a batch of biogenic material at an opposite end of the pressure vessel from the heated granular material whilst the pressure vessel is at atmospheric pressure, and a prime mover configured to rotate the pressure vessel to mix the granular material and the biogenic material together.
Dependencies are inferred from the claim text.