section Home Production, Amateur Radio amateur Model aircraft, rocket- Useful, entertaining	Stealth master Electronics Physics Technologies invention	space Mystery Earth Mysteries Secrets of the Ocean Stealth section Map
Use of material is permitted for reference (for websites - hyperlinks)

INVENTION
Russian Federation Patent RU2126891

METHOD FOR PRODUCING ELECTRICITY THROUGH wells METANOOTSOSA
GASIFICATION AND COAL

Name of the inventor: Vasyuchkov Yury Fedorovich; Boris Vorobyov
The name of the patentee: Vasyuchkov Yury Fedorovich; Boris Vorobyov
Address for correspondence: 107392, Moscow, B.Cherkizovskaya street, 9, building 3, kv.31 Vasyuchkovu Yury Fedorovich.
Starting date of the patent: 1996.04.19

The invention is designed for direct (in situ coal seams) produce electrical energy synthesized resource-saving technologies in the operation of methane deposits to energy coals. The process is carried out by a joint metanootsosa and hydraulic borehole followed by gasification of coal-water slurry on the surface and the use of generator gas in a mixture with the methane to generate electricity at combined-cycle plants operating on the combined cycle. The wells used consistently, including for sub-standard coal reserves. The technology provides a more efficient use of the thermal energy contained in coal thickness of the deposit, by sharing the heat content of methane gas generator, which can be obtained shaftless manner by a single process metanootsosa and coal gasification. Increased efficiency and electrical installation.

DESCRIPTION OF THE INVENTION

The invention relates to the mining industry and can be used to generate electricity. The method can be effectively applied in the operation of coal deposits with conditioned and substandard stock at a sufficiently high gas content (more than 8 - 10 m ³ per ton) of coal seams.

There are three separate (technologically unrelated) method: shaftless metanodrenazha by drilling wells from the surface; hydraulic borehole mining of coal; gasification of coal at the surface plant with electricity generation at combined-cycle power plants, operating on the combined cycle.

In the former case, the methane produced from wells, is used as fuel gas in most domestic and industrial purposes; In the second case, coal is produced through the wellbore, where coal bounces high-pressure water jet and formed by water-coal slurry is issued to the surface where coal is dehydrated; in the case of the third extracted in some conventional manner to obtain synthesis gas uglegazifikatsionnoy surface installation.

Disadvantages of the known processes: inadequate implementation of methane use, synthetic (generator), gas and coal produced by the well due to the technological fragmentation of these three ways; multistage, high labor intensity and the high cost of electricity.

In addition, all three known ways to have a relatively low efficiency power generation and inadequate use of the energy contained in coal seams (coal-bearing strata), due to the fact that it is only used as a gaseous fuel when draining methane; when hydraulic borehole mining methane is not used; coal gasification product gas obtained by the low-calorie. Thus, the proposed method "Uglegidroelektrichestvo" is a resource-saving technologies.

The proposed method can be used in a wide range of geological conditions:

- Seams with energy coal;

- Coal seams with medium and high gas content;

- Layers capacity of 0.4 - 0.5 m and above (without restrictions);

- Moderate watering of fields;

- Moderate disturbance field (particularly undesirable dizyunktivalnye violations: faults, reverse faults, etc.);

- Of high-carbons (below standards for balance reserves);

- High sulfur coals;

- Lots of coal deposits with off-balance sheet reserves, unintended health for mining mines or quarries;

- The remaining coal reserves at closed (mothballed) mines (safety pillars, unearned blocks sites shahtanyh fields with substandard supplies);

- New, previously undeveloped coal deposits in some precarious areas in the absence of infrastructure.

Thus, the proposed method can be applied to the seams of medium and high gas content, which is working out for one reason or another can not be produced by conventional methods. The proposed method can be used for testing off-balance coal reserves, which currently can not be fulfilled by traditional methods with sufficient economic benefit.

A method of producing electricity with shaftless uglegazifikatsii and / or ugleszhiganiya, which is closest to the applicant and, therefore, taken as a prototype, which consists in the technological unification metanootsosa method with surface and underground coal gasification in an array to supply a combustible mixture of methane and gas generator in the power unit, consisting of the combined-cycle plant, which operates on the combined cycle [1].

The invention aims to improve the efficiency of obtaining and using the energy contained in the coal seam by increasing the controllability of the process and the completeness of the extraction of energy from the coal while reducing energy consumption and thus the cost of electricity generated.

The goal is achieved by the fact that the two energy carrier used at the same time methane coal-bearing strata and the generator gas produced in the surface installation uglegazifikatsii; In addition, the fullness of the extraction and use of solid carbon is ensured by the use of a downhole hydraulic mining coal technology. Hydraulic borehole mining technology integrates with coalification in the surface installation. Vodougolnyya mixture, which is issued to the surface through the well is transported by pipeline to uglegazifikatsionnuyu installation where water-coal mixture is the starting material for generating gas. This provides a technological integration of both processes: hydraulic mining of coal and gasification in a single continuous line process.

The method consists in the process of integration in the synthesis technologies: hydraulic borehole mining of coal, together with drainage of methane power generation technology in the combined cycle plants operating on the combined cycle. On the basis of this integrated technology creates coal and energy company, generate electricity as a final product. All these elements make up technologies (downhole hydraulic mining of coal with metanootsosom, uglegazifikatsiya and electricity generation) are carried out continuously and are aligned in time, while within each uglegidrogazbloka metanootsos precedes the well uglegidrodobyche.

Drainage of methane through wells drilled from the surface and their subsequent use for hydraulic mining of coal. Thus metanodrenazhzha shaftless technology combined with downhole hydraulic mining of coal gasification followed him to the surface using a gas mixture (methane + gas) in the combined cycle power plants to create a highly efficient, resource-saving and environmentally friendly production.

TECHNOLOGY SYSTEM

Conceptual diagram shaftless metanodrenazha joint, hydraulic borehole coal, coal gasification and use of a mixture of methane gas and the generator to generate electricity on a combined-cycle plant, integrated into a single system is shown in FIG. 1. Such a technology represents a combination of three conversion processes performed sequentially: converting coal into a coal-water mixture in the conversion of coal-water mixture with methane gas generator into electrical energy.

Schematic diagram of situational uglegidrogazenergeticheskogo complex is shown in Fig. 2. The diagram shows 4 operating uglegidrogazbloka (UGGB) and 4 backup unit. Each operating unit is carried out and methane drainage borehole hydraulic mining of coal; aspirated methane and water-coal mixture is fed by two systems of pipelines uglegazifikatsiyu. The captured methane is fed directly to uglegazifikatsionnuyu plant for purification and mixing with the gas generator or fed, bypassing uglegazifikatsionnuyu installation at CHP, which is pre-mixed with the gas generator. Reserve UGGB they go to work as needed with the full or partial failure of one or more working UGGB. Generated electricity is supplied to the grid to the consumer, in particular, coal and energy used in the complex. Technological scheme of the complex "Uglegidrogazelektrichestvo" shown in FIG. 3. The diagram shows only one UGGB; the number of units should be based on the actual performance of the unit and the design capacity of the complex. As shown in the diagram, the panel 1 has worked; in panel 2 being hydraulic mining of coal; 3 in two panels flanking wells drilled connected sboyka and suctioned thereon methane; panel 4 is in the preparation, are well drilled two inclined coal seam surface.

hydraulic mining coal produced in the panel 2 (see Figure 3..); pump 13 creates a pressure in the water line 45 through which high-pressure water via a pipeline laid on the well 18 is supplied to the well 20. The jetting hydraulic mining of coal is conducted in a diagonal bottom 22, along which the water-coal mixture is fed by gravity to pulpopriemniku where downhole coal pumps 21 (aerlift , hydraulic elevator) by slurry pipeline, laid on hole 19, is issued to the surface. Further pulp (water-coal mixture) is fed by a slurry pipeline 44 uglegazifikatsionnuyu unit 14 where the coal-water mixture obtained from the generator (synthetic) gas 47 which is supplied together with methane mechanical cleaning installation 15. The mixture of methane gas generator is chemically cleaned in the installation 16 ; wherein the removed hydrogen sulphide H 2 S and sulfur oxides SO x, moreover, liquid sulfur 23 is released thus purified gas mixture supplied through conduit 37 to the gas turbine 1, the rotating power generator 3. The high-temperature gases - a gaseous mixture of combustion products - on channel 38 fed into the steam generator heat exchanger 7. The formed steam is fed through line 39 to the steam turbine 2 operating in tandem with the overall gas turbine exhaust steam generator 3 through a steam conduit 11 is passed to a condenser, where the condensate through conduit 42 enters the header 12, where produced cleaning of recycled water. Uglegazifikatsionnaya installation 14 is provided with a heat exchanger (not shown in the diagram) which is used as an additional gas generator, a steam turbine providing steam. The exhaust gases from the gas turbine is cleaned in the 8 and 9 before being discharged into the atmosphere through the chimney 10. The implementation of the proposed technology will significantly improve the overall efficiency of the entire uglegidrogazelektricheskogo complex, which will provide a significant reduction in the cost of electricity unit. In addition, the technology is environmentally friendly, providing a great social effect, which is achieved due to the withdrawal of people from the underground mine workings, ie as a result of the lack of people working in the mine.

Explanation of the process flowsheet "Uglegidrogazelektrichestvo":

CLAIM

1. A method of producing electricity on the basis of a downhole metanootsosa and coal gasification, gasification of mixing gas and methane extracted and feeding the mixture of gases in the steam-gas power plant, characterized in that simultaneously with metanootsosom one underground panel performed consistently downhole hydraulic mining of coal in the other panels, the resulting thus coal-water mixture in gidrotransportiruyut uglegazifikatsionnuyu apparatus for producing a mixture of gases.

2. A method according to claim 1, characterized in that the steam-gas power plant is formed from the gas turbine, operating in conjunction with one steam turbine generator to obtain steam supplied to the steam turbine in the heat exchangers as in the operation of the gas turbine and during operation uglegazifikatsionnoy Fitting.

3. A method according to claim 1, characterized in that within one panel wells are drilled from the surface, which is used as a first suction degassing methane, and then - the water supply to the downhole jetting and outputting a coal-water mixture to the surface.

4. A method according to claim 1, characterized in that the hydraulic borehole metanootsosu and subjected to a conditioning and substandard coal to improve the utilization of non-renewable resources as a CBM power source.

print version
Publication date 14.02.2007gg

NEW ARTICLES AND PUBLICATIONS
	The technology of manufacture of universal joints for besvarochnogo, threadless, besflyantsevogo connection pipe segments in high-pressure pipelines (a video)
	Oil and petroleum products purification technology
	On the possibility of moving mechanical system due to internal forces
	Glow liquid in a thin dielectric kanaloh
	The relationship between quantum and classical mechanics
	Millimeter waves in medicine. A New Look. IIM therapy
	Magnetic engine
	The heat source on the basis of units nososnyh