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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0072679 (1987-07-13) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 350 인용 특허 : 8 |
A method for the electro-thermal and electrochemical underground conversion of coal into oil and by-products comprises the steps of inserting an underground probe into a bore hole until the probe is in close proximity to a coal seam. A mixture of air, steam, an electrolyte and a suitable catalyst is
A method for the electro-thermal and electrochemical underground conversion of coal into oil and by-products comprises the steps of inserting an underground probe into a bore hole until the probe is in close proximity to a coal seam. A mixture of air, steam, an electrolyte and a suitable catalyst is supplied to the probe, and the mixture is then sprayed directly on the coal seam through a passage in a nozzle. The probe is also energized with electricity applied to the nozzle to produce an arc between the coal and the probe, simultaneous with the spraying of the mixture on the coal seam. Heat of the combustion from the arc and the steam combine to produce a pyrolysis, oxidation, and reduction of the coal, thereby converting the coal into a gaseous combination of oil and by-products. The arc can be rotated to increase the tunnel diameter. An apparatus for performing the method is also provided.
A method for underground conversion of coal, comprising the steps of: inserting a conversion probe into a bore hole until the probe is in close proximity to a coal seam; supplying a mixture of at least air, steam, electrolyte, and catalyst for the electro-chemical conversion of the coal to the probe
A method for underground conversion of coal, comprising the steps of: inserting a conversion probe into a bore hole until the probe is in close proximity to a coal seam; supplying a mixture of at least air, steam, electrolyte, and catalyst for the electro-chemical conversion of the coal to the probe; spraying the mixture directly on the coal seam; substantially simultaneously energizing the probe with electricity to produce an arc between the probe and the coal seam, whereby the arc heat of combustion and the steam combine to produce a pyrolysis, an oxidation and a reduction of the coal, that converts the coal into a gaseous combination of oil and by-products; and extracting the gaseous combination of oil and by-products from the bore hole. An apparatus for underground conversion of coal, comprising: a conversion probe; means for inserting the probe into a bore hole until the probe is in close proximity to a coal seam; means for spraying a mixture of air, steam, and chemicals directly on the coal seam; means for producing an electric arc between the probe and the coal seam, whereby the electric arc and the mixture convert the coal into a gaseous combination of oil and by-products; and means for rotating the electric arc while spraying the mixture so as to improve conversion efficiency.
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