# US 2021/0340451 A1 · Method for gasifying carbon-containing material

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2021/0340451 A1
- Document ID: US20210340451A1
- Status: Published application
- Kind: A1
- Application number: 17/374,286
- Filed: 2021-07-13
- Published: 2021-11-04
- Earliest claimed: 2016-06-23
- Assignees: Glock öKoenergie GmbH
- Applicants: Glock öKoenergie GmbH
- Inventors: Gaston GLOCK
- Web page: https://patentgrep.com/patent/US20210340451A1

## CPC

- C10J 3/84: with means for removing dust or tar from the gas
- C10J 3/26: downwardly
- C10J 3/721: {Multistage gasification, e.g. plural parallel or serial gasification stages}
- C10K 1/024: {by filtration}
- C10K 3/005: {by partial oxidation}
- B01D 46/2407: {Filter candles}
- B01D 2273/20: High temperature filtration
- C10J 2300/092: Wood, cellulose
- C10J 2300/0956: Air or oxygen enriched air
- Y02E 20/16: Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E 50/10: Biofuels, e.g. bio-diesel
- C10J: PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES (synthesis gas from liquid or gaseous hydrocarbons C01B; underground gasification of minerals E21B43/295); CARBURETTING AIR OR OTHER GASES
- C10K: PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A method for gasifying carbon-containing materials in which the material for gasification and oxygen, usually in the form of air, are supplied to a gas generator where the gasification takes place in a fixed bed reactor. The product gas is drawn off via a product gas line and introduced into a hot gas filter. A filter, preferably provided with filter candles, removes solids such as particles not yet gasified, ash and foreign bodies, while clean gas passes through and is taken off via a clean gas line. An outlet is provided in the bottom region of the hot gas filter to remove residual solids. The hot gas filter is supplied through a line with oxygen, preferably in the form of air, in its middle height region, between the filter bottom and the outlet.

## Claims

### Claim 1

A method for gasifying a carbon-containing material, comprising:
adding a carbon-containing material to a gas generator;
adding oxygen to the gas generator;
at least partially gasifying the carbon-containing material in the gas generator to yield a product gas stream;
supplying the product gas stream to a hot gas filter having a filter assembly; and
supplying oxygen to the hot gas filter prior to the filter assembly so that a further gasification of the product gas stream occurs.

### Claim 2 (depends on 1)

The method of claim 1, wherein supplying oxygen to the hot gas filter includes supplying air to the hot gas filter.

### Claim 3 (depends on 1)

The method of claim 1, wherein supplying the product gas stream to the hot gas filter includes supplying the product gas line to the hot gas filter with sufficient draft that particles not gasified in the gas generator are transported substantially into the hot gas filter.

### Claim 4

A method for gasifying a carbon-containing material in a gas generator having an upper region, a middle region, and a lower region, comprising:
supplying a carbon-containing material to the upper region of the gas generator;
supplying oxygen to the middle region of the gas generator;
at least partially gasifying the carbon-containing material in a fixed bed reactor in the lower region of the gas generator to yield a product gas stream;
passing the product gas stream from a lowermost region of the gas generator to a lowermost region of a hot gas filter via a product gas line, wherein the hot gas filter includes a hot gas filter assembly configured to filter the received product gas stream to yield a clean product gas;
supplying oxygen to a middle region of the hot gas filter between the hot gas filter assembly and the lowermost region of the hot gas filter to additionally gasify at least some carbon-containing material present in the product gas received by the hot gas filter from the gas generator.

### Claim 5 (depends on 4)

The method of claim 4, wherein supplying oxygen to the middle region of the gas generator includes supplying air to the middle region of the gas generator.

### Claim 6 (depends on 4)

The method of claim 4, wherein supplying a carbon-containing material to the upper region of the gas generator includes supplying a carbon-containing material that includes wood.

### Claim 7 (depends on 4)

The method of claim 4, wherein passing the product gas stream to the hot gas filter includes passing the product gas stream to a hot gas filter assembly that includes one or more filter candles.

### Claim 8 (depends on 4)

The method of claim 4, wherein passing the product gas stream to the hot gas filter includes passing the product gas stream to a hot gas filter assembly that is configured to remove solid particles not yet gasified, ash, and foreign bodies from the product gas stream.

### Claim 9 (depends on 4)

The method of claim 4, wherein supplying oxygen to the middle region of the hot gas filter includes supplying air to the middle region of the hot gas filter.

### Claim 10 (depends on 4)

The method of claim 4, wherein passing the product gas stream from the gas generator to the hot gas filter includes transporting at least some particles not gasified in the gas generator to the hot gas filter.