CN109663483B - Absorption and elimination liquid for quickly removing hydrogen sulfide gas and application - Google Patents
Absorption and elimination liquid for quickly removing hydrogen sulfide gas and application Download PDFInfo
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- CN109663483B CN109663483B CN201710964708.2A CN201710964708A CN109663483B CN 109663483 B CN109663483 B CN 109663483B CN 201710964708 A CN201710964708 A CN 201710964708A CN 109663483 B CN109663483 B CN 109663483B
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- hydrogen sulfide
- absorption
- sulfide gas
- elimination
- elimination liquid
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- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 143
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title claims abstract description 143
- 239000007789 gas Substances 0.000 title claims abstract description 77
- 230000008030 elimination Effects 0.000 title claims abstract description 63
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 63
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 51
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 239000007800 oxidant agent Substances 0.000 claims abstract description 33
- 230000001590 oxidative effect Effects 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002250 absorbent Substances 0.000 claims abstract description 22
- 230000002745 absorbent Effects 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000003623 enhancer Substances 0.000 claims abstract description 18
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 claims abstract description 14
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims abstract description 13
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims abstract description 11
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical group [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000011736 potassium bicarbonate Substances 0.000 claims abstract description 8
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims abstract description 8
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims abstract description 8
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 6
- 229910000027 potassium carbonate Inorganic materials 0.000 claims abstract description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M sodium bicarbonate Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 5
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 4
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims abstract description 3
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000002360 preparation method Methods 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000008367 deionised water Substances 0.000 claims description 15
- 229910021641 deionized water Inorganic materials 0.000 claims description 15
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910021592 Copper(II) chloride Inorganic materials 0.000 claims description 4
- 239000008139 complexing agent Substances 0.000 claims description 4
- 150000001879 copper Chemical class 0.000 claims description 4
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 229910000366 copper(II) sulfate Inorganic materials 0.000 claims description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 3
- 229960004889 salicylic acid Drugs 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical group Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical group Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(III) nitrate Inorganic materials [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 2
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims description 2
- 235000020679 tap water Nutrition 0.000 claims description 2
- IMPJIGYFRNDTFT-UHFFFAOYSA-N P1(=O)OC(CO)OP(O1)=O.[Na] Chemical compound P1(=O)OC(CO)OP(O1)=O.[Na] IMPJIGYFRNDTFT-UHFFFAOYSA-N 0.000 claims 1
- 238000002474 experimental method Methods 0.000 description 63
- 239000002341 toxic gas Substances 0.000 description 33
- 230000000052 comparative effect Effects 0.000 description 20
- 239000000243 solution Substances 0.000 description 20
- 238000001514 detection method Methods 0.000 description 18
- 239000000843 powder Substances 0.000 description 6
- -1 preferably Substances 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000000196 olfactory nerve Anatomy 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 239000002195 soluble material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- IQSWASBUPOHAPT-UHFFFAOYSA-N OCC(P(O)(O)=O)P(O)(O)=O.[Na].[Na].[Na].[Na] Chemical compound OCC(P(O)(O)=O)P(O)(O)=O.[Na].[Na].[Na].[Na] IQSWASBUPOHAPT-UHFFFAOYSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- ZJQOPWJLCHYGJL-UHFFFAOYSA-N [Na].[Na].[Na].[Na].OCC1OP(=O)OP(=O)O1 Chemical compound [Na].[Na].[Na].[Na].OCC1OP(=O)OP(=O)O1 ZJQOPWJLCHYGJL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
Abstract
The invention relates to an absorption and elimination liquid for quickly eliminating hydrogen sulfide gas and application thereof, and mainly solves the problems that the elimination efficiency is low and secondary pollution is easily caused in the prior art. The invention adopts absorption and elimination liquid for rapidly eliminating hydrogen sulfide gas, which is prepared from complex metal oxidant, absorbent, reaction enhancer and regulator in a mass ratio of 1-5:1-5:0.01-0.1:0.004-0.01, wherein the absorbent is at least one of methyldiethanolamine, polyethylene glycol dimethyl ether and propylene carbonate, and the reaction enhancer is at least one of piperazine, pyridine and tributylamine; the regulator is K2CO3、Na2CO3、KHCO3、NaHCO3The technical scheme of at least one of the above-mentioned problems has been solved well, can be used to the hydrogen sulfide gas leakage and meet an urgent need and clear up.
Description
Technical Field
The invention relates to an absorption and elimination liquid for quickly removing hydrogen sulfide gas and application thereof.
Background
Poisoning accidents caused by hydrogen sulfide gas leakage frequently occur in the field of petrochemical industry. Hydrogen sulfide is a highly toxic, colorless (transparent), heavier than air gas. The low concentration of hydrogen sulfide has an odor similar to that of a rotten egg. The olfactory nerve is paralyzed quickly at high content, no smell is produced, and the olfactory nerve is difficult to detect, and the inhalation of a small amount of high-concentration hydrogen sulfide can kill the olfactory nerve in a short time. The death rate of hydrogen sulfide poisoning is high, accidents are sudden and group, once leakage accidents occur, the personal safety of surrounding masses and workers can be seriously threatened, secondary disasters have large influence, nearby air can be seriously polluted, and the ecological environment can be damaged.
The leakage of hydrogen sulfide is treated by taking the protection measures to be adopted in open areas that personnel are quickly evacuated to the position 150-300 m away from the windward position and immediately isolated, the personnel are strictly limited to come in and go out, the treating personnel wear self-supply positive pressure type respirators and wear gas protection suits to enter the site from the windward position, the leakage source is cut off as far as possible, and the hydrogen sulfide is diffused, diluted or dissolved by blowing or spraying water. For the leakage of hydrogen sulfide in a fixed space, ventilation and fire water spraying methods are mainly adopted for disposal. The ventilation is mainly to reduce the concentration of hydrogen sulfide through dilution, and is suitable for emergency treatment of small leakage; fire water sprays are limited in efficiency because hydrogen sulfide is not very soluble in water (1 volume of water absorbs 2.5 volumes of hydrogen sulfide at ambient temperature) and also produce large quantities of hydrogen sulfide-containing wastewater.
Chinese patent CN103949140A & lt & ltHydrogen sulfide leakage Emergency catching and eliminating Dry powder & gt and production method thereof & lt & gt relates to a hydrogen sulfide emergency catching and eliminating Dry powder and production method thereof, mainly comprising 65-99% of catching and eliminating agent, 0.5-15% of moisture-proof agent, 0.5-20% of additive and the like by mass fraction, but the type of catching and eliminating Dry powder is complex in preparation process, complex in operation and low in hydrogen sulfide eliminating efficiency. Chinese patent CN201510669690 "a method for preparing hydrogen sulfide absorbent" discloses a method for preparing hydrogen sulfide gas absorbent, which mainly comprises 70-90% of powder material and 5-45% of water-soluble material, the powder material and the water-soluble material are sequentially added into water, mixed and stirred at 20-100 ℃, reacted to be pasty, dried and granulated to obtain the hydrogen sulfide absorbent. The preparation method provided by the patent is complex in operation, tedious and time-consuming, the prepared absorbent is low in removal efficiency, and the absorbed solid powder is easy to cause secondary pollution.
Disclosure of Invention
One of the technical problems to be solved by the invention is to solve the problems of low removal efficiency and easy secondary pollution in the prior art, and provide a novel absorption and elimination liquid for rapidly removing hydrogen sulfide gas, which has the advantages of high removal efficiency and difficult secondary pollution. The second technical problem to be solved by the present invention is to provide a use of absorption and elimination solution for rapidly removing hydrogen sulfide gas corresponding to the first technical problem to be solved
In order to solve one of the problems, the technical scheme adopted by the invention is as follows: a absorption and elimination liquid for rapidly eliminating hydrogen sulfide gas is prepared from a complex metal oxidant, an absorbent, a reaction enhancer and a regulator in a mass ratio of 1-5:1-5:0.01-0.1:0.004-0.01, wherein the absorbent is at least one of methyldiethanolamine, polyethylene glycol dimethyl ether and propylene carbonate, and the reaction enhancer is at least one of piperazine, pyridine and tributylamine; the regulator is K2CO3、Na2CO3、KHCO3、NaHCO3At least one of (1).
In the above technical solution, preferably, the preparation method of the complex metal oxidizer includes the following steps: (1) under the protection of nitrogen, mixing soluble ferric salt, soluble copper salt, complexing agent and water according to the mass ratio of 1-5:1-3:5-10:10-100 parts of the mixture is added into a reactor and mixed evenly; (2) heating the reactor to 60-80 ℃, and reacting for 6-10 h to obtain the oxidant.
In the above technical solution, preferably, the soluble iron salt is FeCl3、Fe(NO3)3、Fe2(SO4)3At least one of (1).
In the above technical solution, preferably, the soluble copper salt is CuCl2、Cu(NO3)2、CuSO4At least one of (1).
In the above technical solution, preferably, the complexing agent is at least one of tetrasodium hydroxyethylidene diphosphonate, salicylic acid, and tartaric acid.
In the above technical solution, preferably, the water is deionized water, tap water and/or reclaimed water.
In the above technical solution, preferably, the absorbent is at least one of methyldiethanolamine and polyethylene glycol dimethyl ether.
In the above technical solution, preferably, the reaction enhancer is at least one of piperazine and pyridine.
In the above technical solution, preferably, the regulator is K2CO3、Na2CO3At least one of (1).
In the above technical scheme, preferably, the complex metal oxidant, the absorbent and the reaction enhancer are simultaneously added into the sample preparation device and uniformly mixed, finally the regulator is added, and the mixture is uniformly stirred again to obtain the high-efficiency hydrogen sulfide gas absorption and elimination solution.
In order to solve the second problem, the invention adopts the following technical scheme: an absorption and elimination liquid for quickly eliminating hydrogen sulfide gas is used for emergency elimination of hydrogen sulfide gas leakage.
Compared with the prior art, the hydrogen sulfide gas absorption and elimination liquid provided by the invention can rapidly eliminate hydrogen sulfide molecules by the principle of gas-liquid contact direct absorption-oxidation reaction, has the advantages of high elimination efficiency, stable performance, simple preparation method, economy, environmental protection and the like, has good application prospect, and obtains better technical effects.
The present invention will be further illustrated by the following examples, but is not limited to these examples.
Detailed Description
The technical solutions of the present invention will be described in detail below in order to clearly understand the technical features, objects, and advantages of the present invention, but the present invention is not limited to the practical scope of the present invention.
The technical solutions of the present invention will be described in detail below in order to clearly understand the technical features, objects, and advantages of the present invention, but the present invention is not limited to the practical scope of the present invention.
The experimental methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials are commercially available, unless otherwise specified.
Comparative example 1
A25L toxic gas experiment box is adopted to carry out comparative experiments and example experiments, a certain amount of pure hydrogen sulfide gas is filled in the toxic gas experiment box, the concentration of the pure hydrogen sulfide gas is detected to be 5000ppm, 10ml of deionized water is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 4980ppm, and the removal rate of the hydrogen sulfide is 0.4%.
Comparative example 2
A25L toxic gas experiment box is adopted to carry out comparative experiments and example experiments, a certain amount of pure hydrogen sulfide gas is filled in the toxic gas experiment box, the concentration of the pure hydrogen sulfide gas is 4000ppm, 10ml of deionized water is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 3970ppm, and the hydrogen sulfide removal rate is 0.75%.
Comparative example 3
A25L toxic gas experiment box is adopted to carry out comparative experiments and example experiments, a certain amount of pure hydrogen sulfide gas is filled in the toxic gas experiment box, the concentration of the pure hydrogen sulfide gas is detected to be 3000ppm, 10ml of deionized water is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 2965ppm, and the hydrogen sulfide removal rate is 1.17%.
Comparative example 4
A25L toxic gas experiment box is adopted to carry out comparative experiments and example experiments, a certain amount of pure hydrogen sulfide gas is filled in the toxic gas experiment box, the concentration of the pure hydrogen sulfide gas is detected to be 1000ppm, 10ml of deionized water is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 950ppm, and the clearance rate of the hydrogen sulfide is 5.0%.
Comparative example 5
A25L toxic gas experiment box is adopted to carry out comparative experiments and example experiments, a certain amount of pure hydrogen sulfide gas is filled in the toxic gas experiment box, the concentration of the pure hydrogen sulfide gas is detected to be 1000ppm, 50ml of deionized water is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 820ppm, and the clearance rate of the hydrogen sulfide is 18.0%.
Comparative example 6
A25L toxic gas experiment box is adopted to carry out comparative experiments and example experiments, a certain amount of pure hydrogen sulfide gas is filled in the toxic gas experiment box, the concentration of the pure hydrogen sulfide gas is detected to be 1000ppm, 10ml of 10 wt% NaOH aqueous solution is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 640ppm, and the removal rate of the hydrogen sulfide is 36.0%.
Comparative example 7
The comparative experiment and the example experiment are carried out by adopting a 25L toxic gas experimental box, a certain amount of pure hydrogen sulfide gas is filled, the concentration of the pure hydrogen sulfide gas is detected to be 1000ppm, and 10ml of 10 wt% Na is added2CO3The aqueous solution is sprayed into an experimental box, and the detection is carried out after 2min, so that the concentration of the hydrogen sulfide is reduced to 720ppm, and the hydrogen sulfide removal rate is 28.0%.
Comparative example 8
A25L toxic gas experiment box is adopted to carry out comparative experiments and example experiments, a certain amount of pure hydrogen sulfide gas is filled in the toxic gas experiment box, the concentration of the pure hydrogen sulfide gas is detected to be 1000ppm, 10ml of 20 wt% methyldiethanolamine aqueous solution is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 650ppm, and the removal rate of the hydrogen sulfide is 35.0%.
Comparative example 9
A25L toxic gas experiment box is adopted to carry out comparative experiments and example experiments, a certain amount of pure hydrogen sulfide gas is filled in the toxic gas experiment box, the concentration of the pure hydrogen sulfide gas is detected to be 1000ppm, 10ml of 25 wt% ethanolamine aqueous solution is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 510ppm, and the removal rate of the hydrogen sulfide is 49.0%.
Comparative example 10
A25L toxic gas experiment box is adopted to carry out comparative experiments and example experiments, a certain amount of pure hydrogen sulfide gas is filled, the concentration of the pure hydrogen sulfide gas is detected to be 2000ppm, 10ml of 25 wt% ethanolamine aqueous solution is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 1300ppm, and the removal rate of the hydrogen sulfide is 35.0%.
Example 1
The implementation provides a hydrogen sulfide gas absorption and elimination liquid, and the specific preparation method comprises the following steps:
(1) preparation of complex metal oxidant: 0.5kg of FeCl was weighed3、0.5kg CuCl22.0kg of hydroxyethylidene tetrasodium diphosphonate and 15kg of deionized water, and reacting for 7 hours at 70 ℃ to obtain the required complex metal oxidant;
(2) weighing 15kg of complex metal oxidant, 25kg of methyldiethanolamine (absorbent) and 0.3kg of piperazine (reaction enhancer) 1.25kg, adding into a sample preparation device, uniformly mixing, and then adding 0.25kg of KHCO3(regulator), and stirring uniformly again to obtain the hydrogen sulfide gas absorption and elimination solution.
The prepared hydrogen sulfide gas absorption and elimination liquid is used for eliminating hydrogen sulfide, a 25L toxic gas experiment box is filled with a certain amount of pure hydrogen sulfide gas, the concentration of the toxic gas is 5000ppm, 10ml of the hydrogen sulfide absorption and elimination liquid is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 90ppm, and the hydrogen sulfide elimination rate is 98.2%.
Example 2
The implementation provides a hydrogen sulfide gas absorption and elimination liquid, and the specific preparation method comprises the following steps:
(1) preparation of complex metal oxidant: 1.0kg of FeCl was weighed3、0.5kg CuCl22.0kg of hydroxyethylidene diphosphonic acid tetrasodium and 12kg of deionized water, and reacting for 8 hours at 70 ℃ to obtain the required complex metal oxidant;
(2) weighing 12kg of complex metal oxidant, 20kg of methyldiethanolamine (absorbent) and 1.0kg of piperazine (reaction enhancer), adding into a sample preparation device, uniformly mixing, and then adding 0.31kg of NaHCO3(regulator), and stirring uniformly again to obtain the hydrogen sulfide gas absorption and elimination solution.
The prepared hydrogen sulfide gas absorption and elimination liquid is used for eliminating hydrogen sulfide, a 25L toxic gas experiment box is filled with a certain amount of pure hydrogen sulfide gas, the concentration of the toxic gas is 5000ppm, 10ml of the hydrogen sulfide absorption and elimination liquid is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 70ppm, and the hydrogen sulfide elimination rate is 98.6%.
Example 3
The implementation provides a hydrogen sulfide gas absorption and elimination liquid, and the specific preparation method comprises the following steps:
(1) preparation of complex metal oxidant: 0.8kg of Fe (NO) is weighed out3)3、0.5kg Cu(NO3)22.0kg of hydroxyethylidene tetrasodium diphosphonate and 15kg of deionized water, and reacting for 7 hours at 70 ℃ to obtain the required complex metal oxidant;
(2) weighing 15.0kg of complex metal oxidant, 15.0kg of methyldiethanolamine (absorbent) and 0.8kg of pyridine (reaction enhancer), adding into a sample preparation device, mixing uniformly, and adding 0.22kg of KHCO3(regulator), and stirring uniformly again to obtain the hydrogen sulfide gas absorption and elimination solution.
The prepared hydrogen sulfide gas absorption and elimination liquid is used for eliminating hydrogen sulfide, a 25L toxic gas experiment box is filled with a certain amount of pure hydrogen sulfide gas, the concentration of the toxic gas is 4000ppm, 10ml of the hydrogen sulfide absorption and elimination liquid is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 50ppm, and the hydrogen sulfide elimination rate is 98.75%.
Example 4
The implementation provides a hydrogen sulfide gas absorption and elimination liquid, and the specific preparation method comprises the following steps:
(1) preparation of complex metal oxidant: 1.25kg of Fe (NO) are weighed out3)3、0.95kg CuSO43.0kg of salicylic acid and 20kg of deionized water, and reacting for 7 hours at 70 ℃ to obtain the required complex metal oxidant;
(2) 20.0kg of complex metal oxidant, 25.0kg of polyethylene glycol dimethyl ether (absorbent) and 1.5kg of pyridine (reaction enhancer) are weighed and added into a sample preparation device to be uniformly mixed, and then 0.34kg of NaHCO is added3(regulator), and stirring uniformly again to obtain the hydrogen sulfide gas absorption and elimination solution.
The prepared hydrogen sulfide gas absorption and elimination liquid is used for eliminating hydrogen sulfide, a 25L toxic gas experiment box is filled with a certain amount of pure hydrogen sulfide gas, the concentration of the toxic gas is 3000ppm, 10ml of the hydrogen sulfide absorption and elimination liquid is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 40ppm, and the hydrogen sulfide elimination rate is 98.67%.
Example 5
The implementation provides a hydrogen sulfide gas absorption and elimination liquid, and the specific preparation method comprises the following steps:
(1) preparation of complex metal oxidant: 0.2kg of FeCl was weighed3、0.2kg Cu(NO3)21.5kg of hydroxyethylidene tetrasodium diphosphonate and 10kg of deionized water, and reacting for 8 hours at the temperature of 75 ℃ to obtain the required complex metal oxidant;
(2) weighing 10.0kg of complex metal oxidant, 30.0kg of methyldiethanolamine (absorbent) and 0.8kg of pyridine (reaction enhancer), adding into a sample preparation device, mixing uniformly, and adding 0.1kg of KHCO3(regulator), and stirring uniformly again to obtain the hydrogen sulfide gas absorption and elimination solution.
The prepared hydrogen sulfide gas absorption and elimination liquid is used for eliminating hydrogen sulfide, a 25L toxic gas experiment box is filled with a certain amount of pure hydrogen sulfide gas, the concentration of the toxic gas is 3000ppm, 10ml of the hydrogen sulfide absorption and elimination liquid is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 35ppm, and the hydrogen sulfide elimination rate is 98.8%.
Example 6
The implementation provides a hydrogen sulfide gas absorption and elimination liquid, and the specific preparation method comprises the following steps:
(1) preparation of complex metal oxidant: 0.1kg of Fe was weighed2(SO4)3、0.1kg Cu(NO3)20.8kg of hydroxyethylidene tetrasodium diphosphonate and 20kg of deionized water are reacted for 7 hours at the temperature of 70 ℃ to obtain the required complex metal oxidant;
(2) 20.0kg of complex metal oxidant, 20.0kg of methyldiethanolamine (absorbent) and 1.0kg of pyridine (reaction enhancer) are weighed and added into a sample preparation device to be uniformly mixed, and then 0.22kg of KHCO is added3(regulator), and stirring uniformly again to obtain the hydrogen sulfide gas absorption and elimination solution.
The prepared hydrogen sulfide gas absorption and elimination liquid is used for eliminating hydrogen sulfide, a 25L toxic gas experiment box is filled with a certain amount of pure hydrogen sulfide gas, the concentration of the toxic gas is 4000ppm, 10ml of the hydrogen sulfide absorption and elimination liquid is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 65ppm, and the hydrogen sulfide elimination rate is 98.47%.
Example 7
The implementation provides a hydrogen sulfide gas absorption and elimination liquid, and the specific preparation method comprises the following steps:
(1) preparation of complex metal oxidant: 0.2kg of FeCl was weighed3、0.6kg Cu(NO3)21.5kg of tartaric acid and 10kg of deionized water, and reacting for 7 hours at 70 ℃ to obtain the required complex metal oxidant;
(2) weighing 10.0kg of complex metal oxidant, 20.0kg of methyldiethanolamine (absorbent) and 0.8kg of pyridine (reaction enhancer), adding into a sample preparation device, mixing uniformly, and adding 0.06kg of KHCO3(regulator), and stirring uniformly again to obtain the hydrogen sulfide gas absorption and elimination solution.
The prepared hydrogen sulfide gas absorption and elimination liquid is used for eliminating hydrogen sulfide, a 25L toxic gas experiment box is filled with a certain amount of pure hydrogen sulfide gas, the concentration of the toxic gas is detected to be 2000ppm, 10ml of the hydrogen sulfide absorption and elimination liquid is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 50ppm, and the hydrogen sulfide elimination rate is 97.5%.
Example 8
The implementation provides a hydrogen sulfide gas absorption and elimination liquid, and the specific preparation method comprises the following steps:
(1) preparation of complex metal oxidant: 1.0kg of Fe (NO) was weighed3)3、0.8kg Cu(NO3)23.0kg of hydroxyethylidene tetrasodium diphosphonate and 10kg of deionized water are reacted for 7 hours at the temperature of 70 ℃ to obtain the required complex metal oxidant;
(2) weighing 10.0kg of complex metal oxidant, 20.0kg of methyldiethanolamine (absorbent) and 0.7kg of pyridine (reaction enhancer), adding into a sample preparation device, mixing uniformly, and adding 0.05kg of KHCO3(regulator), and stirring uniformly again to obtain the hydrogen sulfide gas absorption and elimination solution.
The prepared hydrogen sulfide gas absorption and elimination liquid is used for eliminating hydrogen sulfide, a 25L toxic gas experiment box is filled with a certain amount of pure hydrogen sulfide gas, the concentration of the pure hydrogen sulfide gas is detected to be 1000ppm, 10ml of the hydrogen sulfide absorption and elimination liquid is sprayed into the experiment box, the detection is carried out after 2min, the concentration of the hydrogen sulfide is reduced to 25ppm, and the hydrogen sulfide elimination rate is 97.5%.
Claims (5)
1. A absorption and elimination liquid for rapidly removing hydrogen sulfide gas consists of a complex metal oxidant, an absorbent, a reaction enhancer and a regulator in a mass ratio of 1-5:1-5:0.01-0.1:0.004-0.01, wherein the absorbent is at least one of methyldiethanolamine, polyethylene glycol dimethyl ether and propylene carbonate, and the reaction enhancer is at least one of piperazine, pyridine and tributylamine; the regulator is K2CO3、Na2CO3、KHCO3、NaHCO3At least one of;
adding the complex metal oxidant, the absorbent and the reaction enhancer into a sample preparation device at the same time, uniformly mixing, finally adding the regulator, and uniformly stirring to obtain the absorption and elimination liquid for rapidly removing the hydrogen sulfide gas;
the preparation method of the complex metal oxidant comprises the following steps: (1) under the protection of nitrogen, adding soluble ferric salt, soluble copper salt, a complexing agent and water into a reactor according to the mass ratio of 1-5:1-3:5-10:10-100, and uniformly mixing; (2) heating the reactor to 60-80 ℃, and reacting for 6-10 h to obtain the oxidant;
the soluble ferric salt is FeCl3、Fe(NO3)3、Fe2(SO4)3At least one of;
the soluble copper salt is CuCl2、Cu(NO3)2、CuSO4At least one of;
the complexing agent is at least one of tetra sodium hydroxyethylidene diphosphonate, salicylic acid and tartaric acid.
2. The absorption and elimination solution for rapidly eliminating the hydrogen sulfide gas as claimed in claim 1, wherein the water is deionized water, tap water and/or reclaimed water.
3. The absorption and elimination liquid for rapidly eliminating the hydrogen sulfide gas as claimed in claim 1, wherein the absorbent is at least one of methyldiethanolamine and polyethylene glycol dimethyl ether.
4. The absorption and elimination solution for rapidly eliminating the hydrogen sulfide gas as claimed in claim 1, wherein the reaction enhancer is at least one of piperazine and pyridine; the regulator is K2CO3、Na2CO3At least one of (1).
5. The utility model relates to a use of absorption and elimination liquid for quickly eliminating hydrogen sulfide gas, which is used for emergency elimination of hydrogen sulfide gas leakage;
wherein the absorption and elimination liquid is the absorption and elimination liquid as claimed in any one of claims 1 to 4.
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| WO2015088342A1 (en) * | 2013-12-11 | 2015-06-18 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Process and apparatus for hydrogen sulfide removal |
| US9962644B2 (en) * | 2015-12-28 | 2018-05-08 | Exxonmobil Research And Engineering Company | Process for increased selectivity and capacity for hydrogen sulfide capture from acid gases |
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| CN105771601A (en) * | 2009-04-28 | 2016-07-20 | 胡亮 | Self-Concentrating Absorbent for Acid Gas Separation |
| CN102357333A (en) * | 2011-07-29 | 2012-02-22 | 四川煤炭产业集团有限公司 | Agent for rapidly removing high sulfur coal mine underground hydrogen sulfide gas, and device thereof |
| CN106457125A (en) * | 2014-05-23 | 2017-02-22 | 塔明克公司 | Improved acid gas removal process by absorbent solution comprising amine compounds |
| CN104525273A (en) * | 2014-12-19 | 2015-04-22 | 宁波江东金远东化工有限公司 | Desulphurization catalyst |
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