Methane-production inhibitor composition and method for inhibiting methane production

Patent metadata

Field	Value
Publication number	US-11795145-B2
Application number	US-202117919080-A
Country	US
Kind code	B2
Filing date	Apr 16, 2021
Priority date	Apr 21, 2020
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

Provided are a methane-production inhibitor capable of inhibiting methane production for a long period of time, and a method for inhibiting methane production using the composition. A methane-production inhibitor composition contains one or more compounds selected from compounds represented by formula [I] as an effective ingredient, and a method for inhibiting methane production uses the composition.(In formula [I], X represents an —OR1 group, a hydroxyl group, or a halogen atom, Y represents an —OR2 group or an —SO2R3 group, R1 represents a benzoyl group, R2 represents a methylsulfonyl group or a chloromethylsulfonyl group, and R3 represents a chloromethyl group or a hydroxymethyl group.)

First claim

The invention claimed is:

1. A method for inhibiting methane production, the method comprising applying a methane-production inhibitor composition to a water system or soil in which methane is generated, thereby inhibiting methane production from the water system or soil,
wherein the methane-production inhibitor composition comprises one or more compounds selected from compounds represented by formula [I] as an effective ingredient:

wherein X represents an —OR 1 group, a hydroxyl group, or a halogen atom, Y represents an —OR 2 group or an —SO 2 R 3 group, R 1 represents a benzoyl group, R 2 represents a methylsulfonyl group or a chloromethylsulfonyl group, and R 3 represents a chloromethyl group or a hydroxymethyl group, and
wherein the amount of methane-production inhibitor composition applied is an amount in the range of from 50 to 5,000,000 g of the compound represented by formula [I] per 1 ha of area of the water system or soil in which methane is generated.

2. The method for inhibiting methane production according to claim 1 , wherein the water system in which methane is generated is a paddy field or a lake or marsh.

3. The method for inhibiting methane production according to claim 1 , wherein the soil in which methane is generated is peatland.

4. A method for inhibiting methane production, the method comprising mixing a methane-production inhibitor composition with feed to form a mixture, and feeding the mixture to livestock, thereby inhibiting methane production from livestock breath and excreta,
wherein the methane-production inhibitor composition comprises one or more compounds selected from compounds represented by formula [I] as an effective ingredient:

wherein X represents an —OR 1 group, a hydroxyl group, or a halogen atom, Y represents an —OR 2 group or an —SO 2 R 3 group, R 1 represents a benzoyl group, R 2 represents a methylsulfonyl group or a chloromethylsulfonyl group, and R 3 represents a chloromethyl group or a hydroxymethyl group.

5. The method for inhibiting methane production according to claim 4 , wherein the amount of methane-production inhibitor composition used is an amount in the range of from 0.05 to 5,000 mg of the compound represented by formula [I] per 1 kg of the feed.

6. A method for inhibiting methane production, the method comprising mixing a methane-production inhibitor composition with a compost or leaf mold material to ferment the compost or leaf mold material, thereby inhibiting methane production from a fermentation process of compost or leaf mold and from fully ripe compost or fully ripe leaf mold,
wherein the methane-production inhibitor composition comprises one or more compounds selected from compounds represented by formula [I] as an effective ingredient:

wherein X represents an —OR 1 group, a hydroxyl group, or a halogen atom, Y represents an —OR 2 group or an —SO 2 R 3 group, R 1 represents a benzoyl group, R 2 represents a methylsulfonyl group or a chloromethylsulfonyl group, and R 3 represents a chloromethyl group or a hydroxymethyl group.

7. The method for inhibiting methane production according to claim 6 , wherein the amount of the methane-production inhibitor composition used is an amount in the range of from 0.05 to 5,000 mg of the compound represented by formula [I] per 1 kg of the compost or leaf mold material.

8. The method for inhibiting methane production according to claim 1 , wherein the compound represented by formula [I] is any one of compounds represented by formulas [I-1] to [I-6]:

9. The method for inhibiting methane production according to claim 4 , wherein the compound represented by formula [I] is any one of compounds represented by formulas [I-1] to [I-6]:

10. The method for inhibiting methane production according to claim 6 , wherein the compound represented by formula [I] is any one of compounds represented by formulas [I-1] to [I-6]:

Assignees

• Kumiai Chemical Industry Co

Inventors

• Hotta Yudai

Classifications

• Y02W30/40

  Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse · CPC title

• C07C317/14 Primary

  having sulfone or sulfoxide groups bound to carbon atoms of six-membered aromatic rings · CPC title

• A23K20/111

  Aromatic compounds · CPC title

• A23K50/10 Primary

  for ruminants · CPC title

• C07C309/65

  of a saturated carbon skeleton · CPC title