WO2015097715A2 - An apparatus and process to analyze and characterize spalling due to theririo-mechanical failure of coal during underground coal gasification - Google Patents
An apparatus and process to analyze and characterize spalling due to theririo-mechanical failure of coal during underground coal gasification Download PDFInfo
- Publication number
- WO2015097715A2 WO2015097715A2 PCT/IN2014/000723 IN2014000723W WO2015097715A2 WO 2015097715 A2 WO2015097715 A2 WO 2015097715A2 IN 2014000723 W IN2014000723 W IN 2014000723W WO 2015097715 A2 WO2015097715 A2 WO 2015097715A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coal
- furnace
- coal block
- holder
- block
- Prior art date
Links
- 239000003245 coal Substances 0.000 title claims abstract description 118
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 title claims abstract description 29
- 238000004901 spalling Methods 0.000 title claims abstract description 18
- 238000002309 gasification Methods 0.000 title claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 239000000725 suspension Substances 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910001026 inconel Inorganic materials 0.000 claims description 3
- HCTVWSOKIJULET-LQDWTQKMSA-M phenoxymethylpenicillin potassium Chemical compound [K+].N([C@H]1[C@H]2SC([C@@H](N2C1=O)C([O-])=O)(C)C)C(=O)COC1=CC=CC=C1 HCTVWSOKIJULET-LQDWTQKMSA-M 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims 2
- 239000000956 alloy Substances 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 229910052715 tantalum Inorganic materials 0.000 claims 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims 2
- KRTSDMXIXPKRQR-AATRIKPKSA-N monocrotophos Chemical compound CNC(=O)\C=C(/C)OP(=O)(OC)OC KRTSDMXIXPKRQR-AATRIKPKSA-N 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- GSSXLFACIJSBOM-UHFFFAOYSA-N 2h-pyran-2-ol Chemical compound OC1OC=CC=C1 GSSXLFACIJSBOM-UHFFFAOYSA-N 0.000 description 1
- 238000010744 Boudouard reaction Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000012443 analytical study Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Definitions
- the present invention in general, is directed to an apparatus and a proc analyzing and characterizing the physical and chemical processes occui underground coal seams during UCG process. More specifically, the pr invention relates to the spalling behavior of coal during underground cc gasification.
- Underground coal gasification is an in-situ conversion proc which is present in deep underground seams, to combustible product j the process of UCG, a cavity is formed inside the coal seam d consumption by chemical reactions.
- the extent of sp; particular type of coal is an important input to UCG process model tl the product gas calorific value.
- the present inventors have solved this long-felt need by developing a for studying and quantifying the spalling behavior of coal and a proce the apparatus.
- the invention relates to an apparatus for analyzing and characterizi behavior of coal during underground coal gasification
- the device (10) comprises a suspen (1 1) for suspending the coal block holder (5) with the coal h c) placing the device(l O) for monitoring weight of the coa outside a furnace (1) such that the suspension means i through an opening (3) in lid (2) of the furnace(l ) with the (6) within the coal block holder (5) suspended from the de 1 monitoring weight of the coal block (6) and being placed furnace (1 );
- Fig. 1 illustrates a schematic diagram of the apparatus.
- Fig. 2 illustrates the weight profile of coal block versus time on he coal block under air atmosphere and at a temperature of 700°C.
- the conditio! furnace (1) is maintained analogous to the condition in underground during UCG process.
- the furnace (1) can be made up of any material withstand high temperatures of upto 1300°C and withstand highlj and/or reducing atmosphere. The material can be selected from stai super alloys etc.
- the walls of the furnace (1) is thermally insulated in order to ensu temperature within the furnace (1) is maintained and to minimize the he
- the furnace (1) comprises a heat source (4) placed preferably on i surface thereof. This set-up mimics the underground coal gasificatio:
- the heat source (4) is in the form of a plate or a disc.
- the heath electrical heating or heating can be carried out using any fuel.
- the heat is specifically a disc type heating coil with an Inconnel plate at the I source (4).
- the apparatus comprises a coal block holder (5) for holding a coal bloi coal block holder (5) has an open- bottom (7) with the coal block (6) heat source (4).
- the open bottom (7) of the coal block holder (5) facii source (4) ensures that the coal block (6) gets directly heated from t process.
- the open bottom (7) of the coal block holder (5) has z projections (14) to help in retaining/holding the coal block (6) witl block holder(5).
- the projections (14) can be flanges or metal strips strip may be a slidable/rotatable metal strip such that the coal block ( within the coal block holder (5) and the metal strip is slid/rotated inwa each other so that the coal block (6) is held/retained within the coal t (5).
- the apparatus further has at least one inlet tube (8) for supplying furnace (l).
- the inlet tube (8) is preferably placed between the heat so open bottom (7) of coal block holder(5).
- the gas supplied to the fu selected from air, oxygen, nitrogen, carbon dioxide and/or steam deper reaction in the furnace.
- air, steam and/or oxygen is passed throuj tubes (8) into the furnace (1).
- pyrol nitrogen can be passed through the inlet tubes (8).
- the apparatus further has at least one outlet tube (9) for removing g furnace (l).
- the outlet tube (9) is placed between the heat source (4 bottom (7) of the coal block holder(5).
- the outlet tube (9) is used to ⁇ gas from the furnace (1 ).
- the gas removed is generally the product g after the reactions in the furnace including, but not limited to, combu varying compositions and inert gases like carbon dioxide and ni analysis of the product gas enables the study of the reactions occui underground coal seams during UCG process.
- Pyrolysis is the bn higher hydrocarbon components present in coal at higher temperature char or carbon in solid form and lighter components in gaseous form chemical reactions are combustion, gasification and water gas shift i given below:
- the apparatus also comprises a device (10) for monitoring weight > block (6) at any given point of time.
- the device (10) is placed outside (1) and comprises a suspension means (1 1) for suspending the coal bio the coal block holder (5) in the furnace (1); wherein the suspension : passes through the opening (3) of the furnace lid (2).
- the opening (3) ii is packed around the suspension means (1 1) to ensure complete insulati to minimizing heat loss and eas leakaee.
- the susoension means ( block (6) can be a load cell.
- the load cell may be attached to a data lc record the weights at different time intervals.
- the device (10) comprises a suspei (1 1) for suspending the coal block holder (5) with the coal 1 c) placing the device (10) for monitoring weight of the coi outside a " furnace (1) such that the suspension means through an opening (3) in lid (2) of the furnace (1) with tfr (6) within the coal block holder (5) suspended from the d& monitoring weight of the coal block (6) and being placec furnace (1);
- the product gas is collected from the outlet tube and can be analyzi Chromatograph (GC) for studying its components and thereby cal calorific value or understanding the reactions occurring in the underj seams.
- GC analyzi Chromatograph
- Other equipments like GC-MS, engine or downstream reactors the product gas into other fuels can also be integrated with our appai analysis or processing of product gas.
- the apparatus and the process as defined hereinabove relate to si spalling behavior of coal in the underground coal gasification process
- the present apparatus can be modified for the study of other processe the UCG. like kinetics, heat and mass transfer ohenomena and/or anv r
- the apparatus enables the study of feasibility of a particular coe process. Further, it is also possible to characterize and analyze the 1 thermo-mechanical processes for other carbonaceous solid fuel bi slight modifications to the apparatus and the process for use thereof within the scope of the person skilled in the art.
- a furnace was selected having a plate type heater at the bottom su heating chamber.
- the dimension of the heating chamber was 380 x mm.
- the internal openings of the inlet and outlet tubes were made in chamber just above the heating plate.
- the holder was thermally insulated on all its internal f; thickness of 15mm.
- the coal block was cut into a dimension suitable tc holder. The thermal insulation between the coal block and holder surf the heating of the coal block to happen from the bottom exposed face block. This scenario is analogous to the condition in underground during UCG process. After placing the coal block within the holder, surface 15 mm inward from all its sides.
- this coal block assembly was suspended from a load cell which was placed furnace, using a stainless steel rod, to monitor the weight of coal suspending rod was passed through the opening in the lid of the furnac taken to prevent the load getting in contact with any solid object to a ⁇ results.
- This apparatus generated the weight profile of coal block with time, the UCG like conditions inside the heating chamber, as shown in figun
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Coke Industry (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN3620/MUM/2013 | 2013-11-19 | ||
| IN3620MU2013 IN2013MU03620A (enrdf_load_stackoverflow) | 2013-11-19 | 2014-11-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2015097715A2 true WO2015097715A2 (en) | 2015-07-02 |
| WO2015097715A3 WO2015097715A3 (en) | 2015-11-05 |
Family
ID=53479745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IN2014/000723 WO2015097715A2 (en) | 2013-11-19 | 2014-11-18 | An apparatus and process to analyze and characterize spalling due to theririo-mechanical failure of coal during underground coal gasification |
Country Status (2)
| Country | Link |
|---|---|
| IN (1) | IN2013MU03620A (enrdf_load_stackoverflow) |
| WO (1) | WO2015097715A2 (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950247A (zh) * | 2017-05-08 | 2017-07-14 | 山东科技大学 | 一种煤炭地下气化覆岩单向受热模拟实验系统及方法 |
| CN109917108A (zh) * | 2019-04-16 | 2019-06-21 | 辽宁工程技术大学 | 一种模拟煤层开采的三维相似材料模型实验装置及方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3026149B2 (ja) * | 1995-07-11 | 2000-03-27 | セイコーインスツルメンツ株式会社 | 熱重量測定機能付き熱機械的分析装置 |
| US6074205A (en) * | 1997-10-17 | 2000-06-13 | South African Bureau Of Standards | Determination of volatile matter in samples |
| FR2850460B1 (fr) * | 2003-01-23 | 2005-12-30 | Toulouse Inst Nat Polytech | Dispositif et procede de test par thermogravimetrie |
| US7416328B2 (en) * | 2004-12-28 | 2008-08-26 | Waters Investments Limited | System and method for a thermogravimetric analyzer having improved dynamic weight baseline |
-
2014
- 2014-11-18 IN IN3620MU2013 patent/IN2013MU03620A/en unknown
- 2014-11-18 WO PCT/IN2014/000723 patent/WO2015097715A2/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950247A (zh) * | 2017-05-08 | 2017-07-14 | 山东科技大学 | 一种煤炭地下气化覆岩单向受热模拟实验系统及方法 |
| CN106950247B (zh) * | 2017-05-08 | 2019-06-11 | 山东科技大学 | 一种煤炭地下气化覆岩单向受热模拟实验方法 |
| CN109917108A (zh) * | 2019-04-16 | 2019-06-21 | 辽宁工程技术大学 | 一种模拟煤层开采的三维相似材料模型实验装置及方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015097715A3 (en) | 2015-11-05 |
| IN2013MU03620A (enrdf_load_stackoverflow) | 2015-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Baggio et al. | Experimental and modeling analysis of a batch gasification/pyrolysis reactor | |
| Liu et al. | Thermal investigations of direct iron ore reduction with coal | |
| Tremel et al. | Gasification kinetics during entrained flow gasification–Part II: Intrinsic char reaction rate and surface area development | |
| Ashizawa et al. | Gasification characteristics of extra-heavy oil in a research-scale gasifier | |
| Wu et al. | Theoretical and numerical study on ignition behaviour of coal dust layers on a hot surface with corrected kinetic parameters | |
| Paxman et al. | Experimental and numerical analysis of a methane thermal decomposition reactor | |
| Zhou et al. | Model predictions of important bed and gas properties during iron ore sintering | |
| Shek et al. | Review of temperature indicators and the use of duplex stainless steels for life assessment | |
| WO2015097715A2 (en) | An apparatus and process to analyze and characterize spalling due to theririo-mechanical failure of coal during underground coal gasification | |
| Wu et al. | Spontaneous ignition behaviour of coal dust accumulations: A comparison of extrapolation methods from lab-scale to industrial-scale | |
| CN107345886A (zh) | 测定煤热失重性能和热导性能以及测定煤或焦炭反应性的装置和方法 | |
| Donoso et al. | XDEM employed to predict reduction of tungsten oxide in a dry hydrogen atmosphere | |
| Prinetto et al. | Terrestrial demonstrator for a low-temperature carbothermal reduction process on lunar regolith simulant: Design and AIV activities | |
| Hosseini et al. | Critical assessment of thermodynamic properties of important polycyclic aromatic hydrocarbon compounds (PAHs) in coal tar pitch at typical temperature ranges of the carbonization process | |
| Arkhazloo et al. | Determination of temperature distribution during heat treatment of forgings: Simulation and experiment | |
| Lin et al. | Numerical modeling for non-steady thermal stress analysis of slag layer in a membrane wall entrained-flow gasifier | |
| CN102305803B (zh) | 研究高炉炉缸炉底炭砖环裂机理的实验装置及方法 | |
| Dedov et al. | Corrosion and life assessment of IntrexTM superheater tubes in a CFB oil shale boiler | |
| Chidambaram | Thermal damage of sulfur processed chamber under Claus operating reaction conditions—a case study | |
| Brandvik et al. | In situ monitoring of pit gas composition during baking of anodes for aluminum electrolysis | |
| US10442999B2 (en) | Radiant tube support system for fired heaters | |
| CN203705288U (zh) | 用于大物料量试样超临界水气化的热重特性分析系统 | |
| JP2018128399A (ja) | 固体燃料発火性評価方法 | |
| Laws et al. | Design and Performance Assessment of an Experimental Rig to Conduct Material Nitridation Studies at Extreme Ammonia Conditions | |
| CN203929549U (zh) | 一种动态检测焦炭反应失重的装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14874750 Country of ref document: EP Kind code of ref document: A2 |
|
| NENP | Non-entry into the national phase in: |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 14874750 Country of ref document: EP Kind code of ref document: A2 |