CN112811969A - High-energy activator for carbon dioxide phase change explosion and preparation method thereof - Google Patents
High-energy activator for carbon dioxide phase change explosion and preparation method thereof Download PDFInfo
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- CN112811969A CN112811969A CN202110170849.3A CN202110170849A CN112811969A CN 112811969 A CN112811969 A CN 112811969A CN 202110170849 A CN202110170849 A CN 202110170849A CN 112811969 A CN112811969 A CN 112811969A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 61
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 61
- 239000012190 activator Substances 0.000 title claims abstract description 56
- 230000008859 change Effects 0.000 title claims abstract description 49
- 238000004880 explosion Methods 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 17
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims abstract description 34
- NDEMNVPZDAFUKN-UHFFFAOYSA-N guanidine;nitric acid Chemical compound NC(N)=N.O[N+]([O-])=O.O[N+]([O-])=O NDEMNVPZDAFUKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- VBIXEXWLHSRNKB-UHFFFAOYSA-N ammonium oxalate Chemical compound [NH4+].[NH4+].[O-]C(=O)C([O-])=O VBIXEXWLHSRNKB-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000005336 cracking Methods 0.000 claims abstract description 18
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229960004889 salicylic acid Drugs 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 230000001590 oxidative effect Effects 0.000 claims description 18
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 14
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 14
- 239000007800 oxidant agent Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910001868 water Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical group 0.000 claims description 2
- 239000011812 mixed powder Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- -1 ammonium oxalate Salicylic acid Chemical compound 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 description 13
- 238000005422 blasting Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000003245 coal Substances 0.000 description 8
- 150000002739 metals Chemical class 0.000 description 8
- 230000003213 activating effect Effects 0.000 description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 208000010392 Bone Fractures Diseases 0.000 description 5
- 206010017076 Fracture Diseases 0.000 description 5
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 description 5
- 238000005065 mining Methods 0.000 description 5
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000012286 potassium permanganate Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- BVGPZRCQJJMXBI-UHFFFAOYSA-N 1,2-diaminoguanidine;nitric acid Chemical compound O[N+]([O-])=O.NN\C(N)=N/N BVGPZRCQJJMXBI-UHFFFAOYSA-N 0.000 description 1
- 125000005274 4-hydroxybenzoic acid group Chemical group 0.000 description 1
- 235000010921 Betula lenta Nutrition 0.000 description 1
- 240000001746 Betula lenta Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 241000124033 Salix Species 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000005844 autocatalytic reaction Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- ZRALSGWEFCBTJO-UHFFFAOYSA-N guanidine group Chemical group NC(=N)N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- SEEPANYCNGTZFQ-UHFFFAOYSA-N sulfadiazine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)NC1=NC=CC=N1 SEEPANYCNGTZFQ-UHFFFAOYSA-N 0.000 description 1
- 229960004306 sulfadiazine Drugs 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/08—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with a nitrated organic compound
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
本发明实施例提供了一种用于二氧化碳相变爆炸的高能活化剂及其制备方法，涉及二氧化碳相变致裂技术领域，按重量份数比，所述活化剂的原料包括以下组分：8～15份草酸铵、15～25份水杨酸、50～80份硝酸胍、8～15份轻金属和5～8份催化剂。该活化剂的性能稳定，在空气中用明火无法点燃或引爆，还可以防撞击，从而避免由碰撞或高空坠落而造成的燃烧或爆炸；此外，该活化剂安全可靠，其在致裂管内通过液态二氧化碳均匀围压即可高效使用。
The embodiment of the present invention provides a high-energy activator for carbon dioxide phase change explosion and a preparation method thereof, and relates to the technical field of carbon dioxide phase change cracking. According to the ratio of parts by weight, the raw materials of the activator include the following components: 8 ~15 parts ammonium oxalate, 15-25 parts salicylic acid, 50-80 parts guanidine nitrate, 8-15 parts light metal and 5-8 parts catalyst. The performance of the activator is stable, it cannot be ignited or detonated with an open flame in the air, and it can also prevent collision, so as to avoid burning or explosion caused by collision or high-altitude falling; in addition, the activator is safe and reliable, and it passes through the cracking tube. Liquid carbon dioxide can be used efficiently with uniform confining pressure.
Description
Technical Field
The invention relates to the technical field of carbon dioxide phase change cracking, in particular to a high-energy activator for carbon dioxide phase change explosion and a preparation method thereof.
Background
The carbon dioxide phase change fracturing technology is a novel non-explosive fracturing technology adopted in recent years, is widely applied to rock blasting, mining, coal bed gas pumping increasing, storage tank blockage clearing and the like at present, and has the characteristics of simplicity in operation, strong adaptability, safety, high efficiency, economy and environmental protection. The technology is physical phase change blasting, so that the technology has unique advantages incomparable with other blasting equipment, can provide a new technology and a new process for gas safety control, coal bed extraction and mining under special mining conditions of a coal mine, and promotes the rapid development of the coal and mining industries.
The liquid carbon dioxide phase change cracking technology utilizes liquid carbon dioxide in a pipe to be heated, gasified and expanded, and releases high-pressure gas to act on rocks or coal blocks after reaction, overcomes the defects of high destructiveness, high danger and the like in the traditional explosive blasting exploitation and presplitting blasting, and is suitable for safe mining and presplitting blasting of mines. Under the action of an activator, the high-pressure liquid carbon dioxide expands rapidly in volume to break the rupture disk and is converted into a gas state rapidly, and the coal around the drill hole can be fractured under the expansion action of the gas released in a short time. The liquid carbon dioxide can absorb a large amount of heat when expanding in volume, can effectively reduce the temperature of the coal body within the cracking range, and is beneficial to inhibiting spontaneous combustion of the coal bed. Compared with the traditional blasting, the liquid carbon dioxide phase change cracking is safer, the blasting does not need to be checked during operation, people can enter the blasting after the blasting, and the liquid carbon dioxide phase change cracking can be connected in parallel to realize continuous work. Stress shock waves generated in the phase change reaction process form the action of reflecting tensile waves after being reflected on a free surface, so that a crushing area and an initial crack are generated around the rock. And when the shock wave is converted into a stress wave to be continuously transmitted, a large amount of high-pressure gas is generated to further expand along the fracture tip in the initial fracture, and the secondary fracture develops to form a blasting fracture far zone. Under the action of phase change cracking, gas expansion causes radial displacement of each mass point, and radial compression and tangential tension occur around the blast hole. When the tangential tensile stress exceeds the tensile ultimate strength, the rock body is damaged to generate cracks, and when the shock wave is gradually attenuated to be smaller than the tensile strength of the rock body, new cracks are not generated any more. Then high-pressure carbon dioxide gas invades towards the crack development direction, and the surrounding pressure stress is gradually reduced after the crack is expanded.
The carbon dioxide exists in a liquid state at a temperature lower than 31 ℃ and a pressure higher than 7.35MPa, starts to vaporize when the temperature exceeds 31 ℃, and changes with the pressure according to the change of the temperature. By utilizing the physical characteristics, the main pipe of the fracturing device is pressurized and filled with liquid carbon dioxide, the initiator is utilized to rapidly excite the activator to increase the temperature, the liquid carbon dioxide expands and gasifies instantly, when the generated high-pressure gas reaches the ultimate strength of the rupture disc, the high-pressure gas breaks the rupture disc, the high-pressure carbon dioxide is released from the gas leakage head and acts on the rock mass, and therefore the fracturing effect is achieved. When in connection, the fracturing devices can be connected in series or in parallel, so that multi-point simultaneous directional fracturing blasting can be realized.
The activating agent is arranged in the main body pipe of the cracking pipe and provides heat energy for the phase change gasification of the liquid carbon dioxide. Most of the main components of the existing activators for phase change cracking of carbon dioxide are potassium perchlorate or potassium permanganate, which are used as strong oxidizers to provide oxygen required by combustion in a closed oxygen-free environment. In the GHS risk category classification, potassium perchlorate is classified as an oxidizing solid category 1, a dangerous strong oxide that may cause combustion or explosion; potassium permanganate is classified as an oxidizing solid class 2 and a class 1 that is hazardous to aquatic environments-acute and long-term hazards, with negative effects of environmental pollution.
In view of this, the invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a high-energy activator for carbon dioxide phase change explosion and a preparation method thereof.
The invention is realized by the following steps:
in a first aspect, an embodiment of the present invention provides a high-energy activator for carbon dioxide phase change explosion, where the raw materials include, in parts by weight: 8-15 parts of ammonium oxalate, 15-25 parts of salicylic acid, 50-80 parts of a strong oxidant, 8-15 parts of a light metal and 5-8 parts of a catalyst;
wherein the strong oxidant is guanidine nitrate.
In a second aspect, embodiments of the present invention provide a method for preparing a high-energy activator for carbon dioxide phase change explosion, in which raw materials of the high-energy activator for carbon dioxide phase change explosion as described in the foregoing embodiments are mixed.
In a third aspect, embodiments of the present invention provide a carbon dioxide phase change cracker, which includes a cracking tube, and the cracking tube is filled with a high-energy activator for carbon dioxide phase change explosion as described in any one of the foregoing embodiments.
The invention has the following beneficial effects:
the embodiment of the invention provides a high-energy activator for carbon dioxide phase change explosion and a preparation method thereof, wherein the activator comprises the following raw materials in parts by weight: 8-15 parts of ammonium oxalate, 15-25 parts of salicylic acid, 50-80 parts of guanidine nitrate, 8-15 parts of light metal and 5-8 parts of catalyst. The activator has stable performance, can not be ignited or detonated by naked fire in the air, and can also prevent collision, thereby avoiding combustion or explosion caused by collision or high-altitude falling; in addition, the activating agent is safe and reliable, and can be used efficiently by uniform confining pressure of liquid carbon dioxide in the fracturing pipe.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 shows the pressure data of a chamber of a high-energy activator used for carbon dioxide phase transition cracking tube in test example 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The invention provides a high-energy activator for carbon dioxide phase change explosion, which comprises the following raw materials in parts by weight: 8-15 parts of ammonium oxalate, 15-25 parts of salicylic acid, 50-80 parts of a strong oxidant, 8-15 parts of a light metal and 5-8 parts of a catalyst;
wherein the strong oxidant is guanidine nitrate.
Guanidine Nitrate (GN), chemical name diaminoguanidine nitrate, molecular formula CH6N403Or CH5N3·HNO3. White crystalline powder or granular solid, can be dissolved in ethanol and water, slightly soluble in acetone, and insoluble in benzene and diethyl ether. The guanidine nitrate has wide application, is mainly used for synthesizing pharmaceutical and pesticide intermediates such as sulfadiazine and the like, rocket propellant, paint industry, photographic materials, disinfectant and other fields, and can also be used as fuel of a gas generating agent in an automobile safety airbag.
Ammonium oxalate, an inorganic substance of formula (NH)4)2C2O4Soluble in water and slightly soluble in ethanol. The aqueous solution is acidic.
Salicylic acid, a fat-soluble organic acid of formula C7H6O3. The appearance is white crystalline powder, and the melting point is 158-161 ℃. It is an important fine chemical raw material in willow bark, white-bead tree leaf and sweet birch.
Light metals, metals having a relative density of less than 5, are classified into non-ferrous light metals and rare light metals. Specifically, the non-ferrous light metals include aluminum, magnesium, calcium, titanium, potassium, strontium, barium and the like, the former four metals are mainly used as reducing agents in industry, and the aluminum, magnesium, titanium and alloys thereof have small relative density, high strength and strong corrosion resistance. Rare light metals include lithium, beryllium, rubidium, cesium and the like.
Strong oxidizers, which refer to substances with strong oxidizing properties. The property of an oxidant to acquire electrons is called oxidation, and the determinants of the oxidation are the electron-acquiring tendency of high-valence elements in the material. In solution, according to the theory of electric double layers, the magnitude of the oxidation is reflected as the standard hydrogen electrode potential of the oxidant: the higher the potential, the stronger the oxidation; the lower the potential, the weaker the oxidizing property and correspondingly the stronger the reducing property of the reduced state. Strong oxidizers are oxidizing species having a high potential.
In the formula components, the dosage of guanidine nitrate is a main factor for controlling the explosion effect of the cracked tube. Within the range, the reaction rate can be accelerated by correspondingly increasing the amount of guanidine nitrate, the heating speed is higher, and the heat value is higher, so that the explosion effect is improved. If the dosage of guanidine nitrate is too low, the heating speed is relatively slow, and the target effect cannot be achieved due to explosion; guanidine nitrate may be used in an excessively high amount and may not react completely.
In addition, in practical engineering application, the purity of the raw materials adopted by each component of the activating agent also influences the effect, and the proportion of the raw materials with insufficient purity needs to be increased in a proper amount.
Through a series of creative works, the inventor of the invention finds that the guanidine nitrate is adopted to replace potassium perchlorate, and the guanidine nitrate serving as a strong oxidant in the activator has unexpected technical effect. Specifically, the decomposition of guanidine nitrate is an endothermic followed by an exothermic process, and the endothermic result is due to the melting phase transition of guanidine nitrate followed by an exothermic process. On one hand, the exothermic reaction can accelerate the decomposition reaction and enable the decomposition to be more thorough, the exothermic rate and the peak temperature are increased along with the increase of the temperature rise rate, and the representation of the autocatalysis reaction is more obvious; on the other hand, the heat release can directly provide the heat energy required by the phase change gasification of the liquid carbon dioxide, and the purpose of increasing the temperature and improving the heat energy to promote the phase change gasification of the liquid carbon dioxide is achieved more efficiently.
Secondly, the decomposition reaction rate of guanidine nitrate is faster than potassium perchlorate. Guanidine nitrate molecules are decomposed by heating, firstly nitrogen-oxygen single bonds are broken, secondly nitrogen-oxygen double bonds are broken, namely nitric acid parts preferentially generate water, oxygen and nitrogen oxides, and carbon-nitrogen single bonds in residual guanidine groups are further decomposed to generate ammonia and carbon dioxide.
Further, in the GHS risk category classification, potassium perchlorate is classified as an oxidizing solid category 1, a dangerous strong oxide which may cause combustion or explosion; potassium permanganate is classified as an oxidizing solids class 2 and as a hazardous aquatic environment-acute and long-term hazards class 1. In contrast, guanidine nitrate is safer and environmentally friendly.
In some embodiments, the weight parts of ammonium oxalate may be selected from any of 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, and 15 parts.
In some embodiments, the parts by weight of salicylic acid may be selected from any of 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, and 25 parts by weight.
In some embodiments, the weight parts of guanidine nitrate may be selected from any of 50 parts, 52 parts, 54 parts, 56 parts, 58 parts, 60 parts, 62 parts, 64 parts, 66 parts, 68 parts, 70 parts, 72 parts, 74 parts, 76 parts, 78 parts, and 80 parts.
In some embodiments, the weight fraction of light metals may be selected from: any of 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts and 15 parts.
In some embodiments, the parts by weight of the catalyst may be selected from: any of 5 parts, 6 parts, 7 parts and 8 parts.
Preferably, the feedstock comprises the following components: 8-12 parts of ammonium oxalate, 15-22 parts of salicylic acid, 50-70 parts of guanidine nitrate, 8-12 parts of light metal and 5-7 parts of ferric oxide.
Preferably, the activator comprises the following components in parts by weight: 8-10 parts of ammonium oxalate, 15-20 parts of salicylic acid, 50-60 parts of guanidine nitrate, 8-10 parts of light metal and 5-6 parts of ferric oxide.
Preferably, the catalyst is a metal oxide.
Preferably, the catalyst is ferric oxide.
Preferably, the light metal is a powder;
preferably, the light metal is selected from: any one of aluminum powder, magnesium powder or aluminum magnesium mixed powder.
Preferably, the light metal is aluminum powder. The superfine magnesium powder has higher cost, is not suitable in engineering application, has good aluminum powder effect and low cost, and is more suitable for practical use.
Preferably, the particle size of the aluminum powder is 400-800 meshes.
In some embodiments, the particle size of the aluminum powder may be selected from: the mesh number is any of 400 mesh, 500 mesh, 600 mesh, 700 mesh and 800 mesh.
The activator provided by the invention has the following advantages: the formula has stable performance, and can not be ignited or detonated by open fire in the air; the anti-collision device can prevent collision and prevent or reduce combustion or explosion caused by collision or high-altitude falling; safe and reliable, it can high-efficiently use through the even confined pressure of liquid carbon dioxide in sending the fracture intraductal.
In addition, compared with the prior art, the formula has the advantages of fewer adopted components, reduction of a plurality of components, cost reduction and better effect, such as: the nature of sodium fluoride is a passivating agent, completely inert and does not participate in any role in the reaction; the charcoal powder has too low heat value and does not play an obvious role; oxalic acid is essentially oxalic acid and is not required in the activator.
The embodiment of the invention also provides a preparation method of the high-energy activator for carbon dioxide phase change explosion, which is to uniformly mix the raw materials of the high-energy activator for carbon dioxide phase change explosion as described in any one of the previous embodiments.
In addition, the embodiment of the invention provides a carbon dioxide phase change cracker which comprises a cracking tube, wherein the cracking tube is filled with the high-energy activating agent for carbon dioxide phase change explosion according to any one of the previous embodiments.
It should be noted that the present invention has no optimization for the fracturing device and the fracturing pipe, and the specific structures of the fracturing device and the fracturing pipe can be obtained by the prior art, which is not described herein again.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The embodiment of the invention provides a preparation method of a high-energy activator for carbon dioxide phase change explosion, which comprises the following steps of mixing the following raw materials.
The raw materials of the activating agent comprise the following components:
11 parts of ammonium oxalate, 22 parts of salicylic acid, 65 parts of guanidine nitrate, 11 parts of fine-grained aluminum powder and 6 parts of ferric oxide.
Example 2
The embodiment of the invention provides a preparation method of a high-energy activator for carbon dioxide phase change explosion, which is approximately the same as that in embodiment 1, and is different from the embodiment 1 in the ratio of raw materials, wherein the raw materials of the activator comprise the following components:
13 parts of ammonium oxalate, 25 parts of salicylic acid, 70 parts of guanidine nitrate, 12 parts of fine-grained aluminum powder and 7 parts of ferric oxide.
Example 3
The embodiment of the invention provides a preparation method of a high-energy activator for carbon dioxide phase change explosion, which is approximately the same as that in embodiment 1, and is different from the embodiment 1 in the ratio of raw materials, wherein the raw materials of the activator comprise the following components:
15 parts of ammonium oxalate, 25 parts of salicylic acid, 80 parts of guanidine nitrate, 15 parts of fine-grained aluminum powder and 8 parts of ferric oxide.
Example 4
The embodiment of the invention provides a preparation method of a high-energy activator for carbon dioxide phase change explosion, which is approximately the same as that in embodiment 1, and is different from the embodiment 1 in the ratio of raw materials, wherein the raw materials of the activator comprise the following components:
9 parts of ammonium oxalate, 20 parts of salicylic acid, 55 parts of guanidine nitrate, 8 parts of fine-grained aluminum powder and 5 parts of ferric oxide.
Example 5
The embodiment of the invention provides a preparation method of a high-energy activator for carbon dioxide phase change explosion, which is approximately the same as that in embodiment 1, and is different from the embodiment 1 in the ratio of raw materials, wherein the raw materials of the activator comprise the following components:
10 parts of ammonium oxalate, 21 parts of salicylic acid, 60 parts of guanidine nitrate, 9 parts of fine-grained aluminum powder and 6 parts of ferric oxide.
The activating agents prepared in the above embodiments 1 to 5 have good activating effect, fast heating and high heat value, so that the liquid carbon dioxide in the cracking device is rapidly transformed and gasified, and an ideal explosion effect is achieved.
Comparative example 1
This comparative example provides a process for the preparation of a high energy activator for carbon dioxide phase change explosion, substantially the same as example 1, except for the different proportions of the raw materials, the raw materials of the activator comprising the following components:
10 parts of ammonium oxalate, 20 parts of salicylic acid, 40 parts of guanidine nitrate, 10 parts of fine-grained aluminum powder and 4 parts of ferric oxide.
The reaction speed is slow and the activation effect is not good.
Comparative example 2
This comparative example provides a process for the preparation of a high energy activator for carbon dioxide phase change explosion, substantially the same as example 1, except for the different proportions of the raw materials, the raw materials of the activator comprising the following components:
5 parts of ammonium oxalate, 10 parts of salicylic acid, 80 parts of guanidine nitrate, 6 parts of fine-grained aluminum powder and 8 parts of ferric oxide.
Incomplete reaction and poor activation effect.
Comparative example 3
This comparative example provides a process for the preparation of a high energy activator for carbon dioxide phase change explosion, substantially the same as example 1, except for the different proportions of the raw materials, the raw materials of the activator comprising the following components:
10 parts of ammonium oxalate, 10 parts of salicylic acid, 70 parts of guanidine nitrate, 10 parts of fine-grained aluminum powder and 1 part of ferric oxide.
Incomplete reaction and poor activation effect.
Verification example 1
The preparation method provided in example 1 is adopted to prepare the activator, and the activator is used for a bore pressure test of a carbon dioxide phase transition fracturing pipe after preparation, and the test data are shown in table 1 and fig. 1.
TABLE 1 test data
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006088348A1 (en) * | 2005-02-18 | 2006-08-24 | Technische Universiteit Delft | Process for carrying out a chemical reaction with ionic liquid and carbon dioxide under pressure |
| CN102992926A (en) * | 2012-12-13 | 2013-03-27 | 煤炭科学研究总院 | Anaerobic pressure-controlled heating agent and use thereof |
| CN111153756A (en) * | 2020-01-09 | 2020-05-15 | 侯丽红 | Heating material for carbon dioxide cracking device |
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- 2021-02-08 CN CN202110170849.3A patent/CN112811969A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006088348A1 (en) * | 2005-02-18 | 2006-08-24 | Technische Universiteit Delft | Process for carrying out a chemical reaction with ionic liquid and carbon dioxide under pressure |
| CN102992926A (en) * | 2012-12-13 | 2013-03-27 | 煤炭科学研究总院 | Anaerobic pressure-controlled heating agent and use thereof |
| CN111153756A (en) * | 2020-01-09 | 2020-05-15 | 侯丽红 | Heating material for carbon dioxide cracking device |
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