WO2011108005A2 - A process for maximization and optimization of coal energy - Google Patents
A process for maximization and optimization of coal energy Download PDFInfo
- Publication number
- WO2011108005A2 WO2011108005A2 PCT/IN2011/000129 IN2011000129W WO2011108005A2 WO 2011108005 A2 WO2011108005 A2 WO 2011108005A2 IN 2011000129 W IN2011000129 W IN 2011000129W WO 2011108005 A2 WO2011108005 A2 WO 2011108005A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coal
- extraction
- panels
- energy
- boreholes
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimizing the spacing of wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
Definitions
- the present invention relates to a process for maximization and optimization of Coal Energy, more particularly the present invention relates to a process which optimizes the coal energy utilization.
- Coal is one of the most rich and abundantly available energy resources in the world.
- the need for the conservation and optimization of all the carbon generating energy resources are attracting the center stages at all international forums.
- the need for the optimum utilization of the available energy with minimal green house gas production is of utmost necessity.
- Object of the present invention aims at developing a process for maximization and optimization of coal energy.
- Object of the present invention is to develop a process, wherein the loss of coal energy during the course of the coal winning can be saved.
- Another objective of the main invention is to maximize the production of coal generation and use the same for generation of power.
- Yet another objective of the present invention is to maximize the power generation from coal which can result into reduction of cost for power generation.
- FIG 1 shows the Panel preparation
- Figure 2 shows Plan of Mine.
- FIG. 3 shows Panels divided into slices
- Figure 4 shows Developed Mine Plan
- Figure 5 shows Borehole pattern
- Figure 8 shows 3 D view showing ascending extraction of slices
- the working will be kept in isolated panel from other workings by airtight isolation.
- the panel preparation will facilitate sub- surface dewatering and uninterrupted working of panel due to water problem especially in case where aquifers are present.
- Subpanel is divided into number of slices for extraction of coal energy at a time
- the seam is approached by set of boreholes for coal energy extraction and boreholes for filling of voids.
- the number of boreholes, diameter of boreholes and positioning of boreholes depends upon certain determining factors such as
- the slice will be extracted by different compartments to facilitate complete extraction of coal energy within the permitted area of exposure. As shown in fig no 6 the sequences of extraction of slice in compartment.
- the extraction height is kept within limit as less as possible by continuous partial filling of voids (as low as 1.5 meters or less). It will facilitate more area of exposure as height of extraction has direct effect on roof fall
- the voids should be complete filled even inlet and exhaust holes can be used for the purpose.
- the fig no 5 will show the extraction of slices in compartment.
- the fig will give the sequence of extraction of adjoining slices and slices in upper seam.
- Methane (CH4) formed as emission or distillation of coal burnt below heat extraction pump by installing activated platinum wire gauze and heat generated will be used for stem generation. Different technologies and experiences used in extraction of coal energy
- a coal mine is initially divided into number of panels preferably of 200/200 meters and the said panels are divided further in to sub panels of 45/200 meters.
- the said panels are thereafter converted into the dewatered compartments.
- the said compartments are thereafter provided with the boreholes of diameter of 24". The stowing is done by bore of small 8" diameter.
- fire is enlightened in the coal seam by using the advance torch technology.
- the controlled and predetermined air is infused in sub panel during the combustion of coal to keep the fire in control.
- the extraction of heat is also done in controlled manner in order to maintain the combustion in the advanced stage, thereby reducing the emission of green house gases like Carbon Monoxide or Hydrogen.
- the same is further achieved by filing the voids formed by the combustion of coal.
- the panels are selected in such a manner that the roof of the panels shall not fall at any point of time during the process. Thereafter the heat generated from the combustion can be utilized for generation of power by using the state of art technology.
- the process is capable to bring down the cost of electricity 40-50 paisa/unit.
- T.P.S. Thermal Power Station
- the process is free from degradation of land and has comparatively less environmental impact with potential of lowering the overall capital and operation cost.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/639,415 US20130061592A1 (en) | 2010-03-01 | 2011-03-01 | Process for Maximization and Optimization of Coal Energy |
AU2011222370A AU2011222370A1 (en) | 2010-03-01 | 2011-03-01 | A process for maximization and optimization of coal energy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN2776/MUM/2009 | 2010-03-01 | ||
IN2776MU2009 | 2010-03-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011108005A2 true WO2011108005A2 (en) | 2011-09-09 |
WO2011108005A3 WO2011108005A3 (en) | 2011-11-03 |
Family
ID=44542668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IN2011/000129 WO2011108005A2 (en) | 2010-03-01 | 2011-03-01 | A process for maximization and optimization of coal energy |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130061592A1 (en) |
AU (1) | AU2011222370A1 (en) |
WO (1) | WO2011108005A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8915084B2 (en) | 2012-03-08 | 2014-12-23 | 7238703 Canada Inc. | Heat energy extraction system from underground in situ combustion of hydrocarbon reservoirs |
WO2022130032A1 (en) * | 2020-12-18 | 2022-06-23 | Jayant Chandulal Mehta | A process for controlled in-situ coal gasification and a filling device to operate the same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104563990B (en) * | 2015-01-06 | 2018-04-20 | 中国矿业大学 | One kind bores blanking integration and heat injection cooperative reinforcing coal bed gas extraction method |
CN109408950B (en) * | 2018-10-22 | 2023-05-30 | 辽宁工程技术大学 | Method for calculating four reasonable mining periods of mine by considering gas pre-extraction |
CN110552677B (en) * | 2019-09-05 | 2024-03-15 | 中国矿业大学(北京) | Mine type coal underground gasification furnace and gasification method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2761663A (en) * | 1952-09-05 | 1956-09-04 | Louis F Gerdetz | Process of underground gasification of coal |
US3950029A (en) * | 1975-06-12 | 1976-04-13 | Mobil Oil Corporation | In situ retorting of oil shale |
US3999607A (en) * | 1976-01-22 | 1976-12-28 | Exxon Research And Engineering Company | Recovery of hydrocarbons from coal |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063416A (en) * | 1975-12-03 | 1977-12-20 | Cooper Jack M | Steam generator |
NL181941C (en) * | 1977-09-16 | 1987-12-01 | Ir Arnold Willem Josephus Grup | METHOD FOR UNDERGROUND GASULATION OF COAL OR BROWN. |
-
2011
- 2011-03-01 US US13/639,415 patent/US20130061592A1/en not_active Abandoned
- 2011-03-01 WO PCT/IN2011/000129 patent/WO2011108005A2/en active Application Filing
- 2011-03-01 AU AU2011222370A patent/AU2011222370A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2761663A (en) * | 1952-09-05 | 1956-09-04 | Louis F Gerdetz | Process of underground gasification of coal |
US3950029A (en) * | 1975-06-12 | 1976-04-13 | Mobil Oil Corporation | In situ retorting of oil shale |
US3999607A (en) * | 1976-01-22 | 1976-12-28 | Exxon Research And Engineering Company | Recovery of hydrocarbons from coal |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8915084B2 (en) | 2012-03-08 | 2014-12-23 | 7238703 Canada Inc. | Heat energy extraction system from underground in situ combustion of hydrocarbon reservoirs |
WO2022130032A1 (en) * | 2020-12-18 | 2022-06-23 | Jayant Chandulal Mehta | A process for controlled in-situ coal gasification and a filling device to operate the same |
Also Published As
Publication number | Publication date |
---|---|
WO2011108005A3 (en) | 2011-11-03 |
US20130061592A1 (en) | 2013-03-14 |
AU2011222370A1 (en) | 2012-09-20 |
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