CN106242084A - Industrial boiler water-supply condensate system anti-incrustation corrosion inhibitor compositions and application thereof - Google Patents
Industrial boiler water-supply condensate system anti-incrustation corrosion inhibitor compositions and application thereof Download PDFInfo
- Publication number
- CN106242084A CN106242084A CN201610674244.7A CN201610674244A CN106242084A CN 106242084 A CN106242084 A CN 106242084A CN 201610674244 A CN201610674244 A CN 201610674244A CN 106242084 A CN106242084 A CN 106242084A
- Authority
- CN
- China
- Prior art keywords
- corrosion inhibitor
- incrustation corrosion
- water
- inhibitor compositions
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 96
- 238000005260 corrosion Methods 0.000 title claims abstract description 96
- 239000003112 inhibitor Substances 0.000 title claims abstract description 60
- 239000000203 mixture Substances 0.000 title claims abstract description 38
- -1 alkyl hydramine Chemical compound 0.000 claims abstract description 31
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims abstract description 30
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims abstract description 28
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 claims abstract description 26
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- 125000000217 alkyl group Chemical group 0.000 claims description 13
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 9
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 claims description 8
- 150000008065 acid anhydrides Chemical class 0.000 claims description 8
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 8
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 claims description 8
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 6
- 239000011976 maleic acid Substances 0.000 claims description 6
- 229920000768 polyamine Polymers 0.000 claims description 6
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 6
- HNDXKIMMSFCCFW-UHFFFAOYSA-N propane-2-sulphonic acid Chemical compound CC(C)S(O)(=O)=O HNDXKIMMSFCCFW-UHFFFAOYSA-N 0.000 claims description 5
- XEVRDFDBXJMZFG-UHFFFAOYSA-N carbonyl dihydrazine Chemical compound NNC(=O)NN XEVRDFDBXJMZFG-UHFFFAOYSA-N 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims 1
- 229940092714 benzenesulfonic acid Drugs 0.000 claims 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims 1
- 230000005764 inhibitory process Effects 0.000 abstract description 13
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 17
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 13
- 150000001412 amines Chemical class 0.000 description 12
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- 239000002184 metal Substances 0.000 description 8
- 229920001174 Diethylhydroxylamine Polymers 0.000 description 7
- FVCOIAYSJZGECG-UHFFFAOYSA-N diethylhydroxylamine Chemical group CCN(O)CC FVCOIAYSJZGECG-UHFFFAOYSA-N 0.000 description 7
- 230000000116 mitigating effect Effects 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000003814 drug Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
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- 239000012071 phase Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000010962 carbon steel Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- MOFINMJRLYEONQ-UHFFFAOYSA-N [N].C=1C=CNC=1 Chemical compound [N].C=1C=CNC=1 MOFINMJRLYEONQ-UHFFFAOYSA-N 0.000 description 3
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- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical group C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 3
- GGHDAUPFEBTORZ-UHFFFAOYSA-N propane-1,1-diamine Chemical compound CCC(N)N GGHDAUPFEBTORZ-UHFFFAOYSA-N 0.000 description 3
- 239000002455 scale inhibitor Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 150000003852 triazoles Chemical class 0.000 description 3
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- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- BKMMTJMQCTUHRP-UHFFFAOYSA-N 2-aminopropan-1-ol Chemical compound CC(N)CO BKMMTJMQCTUHRP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 0 N*NCCC(CO)I Chemical compound N*NCCC(CO)I 0.000 description 2
- 229940123973 Oxygen scavenger Drugs 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 150000003973 alkyl amines Chemical class 0.000 description 2
- 125000005233 alkylalcohol group Chemical group 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- KEQQXZBIJQISLK-UHFFFAOYSA-N 1-(octadecylamino)ethanol Chemical compound CCCCCCCCCCCCCCCCCCNC(C)O KEQQXZBIJQISLK-UHFFFAOYSA-N 0.000 description 1
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-UHFFFAOYSA-N 0.000 description 1
- HFDVRLIODXPAHB-UHFFFAOYSA-N 1-tetradecene Chemical group CCCCCCCCCCCCC=C HFDVRLIODXPAHB-UHFFFAOYSA-N 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- 229940120146 EDTMP Drugs 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 208000036119 Frailty Diseases 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
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- 125000003368 amide group Chemical group 0.000 description 1
- 238000005576 amination reaction Methods 0.000 description 1
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- 230000002421 anti-septic effect Effects 0.000 description 1
- 206010003549 asthenia Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- QVYARBLCAHCSFJ-UHFFFAOYSA-N butane-1,1-diamine Chemical compound CCCC(N)N QVYARBLCAHCSFJ-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 125000001664 diethylamino group Chemical group [H]C([H])([H])C([H])([H])N(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000006735 epoxidation reaction Methods 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011964 heteropoly acid Substances 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- GKQPCPXONLDCMU-CCEZHUSRSA-N lacidipine Chemical compound CCOC(=O)C1=C(C)NC(C)=C(C(=O)OCC)C1C1=CC=CC=C1\C=C\C(=O)OC(C)(C)C GKQPCPXONLDCMU-CCEZHUSRSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910001437 manganese ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- GQEZCXVZFLOKMC-UHFFFAOYSA-N n-alpha-hexadecene Natural products CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- KJOMYNHMBRNCNY-UHFFFAOYSA-N pentane-1,1-diamine Chemical compound CCCCC(N)N KJOMYNHMBRNCNY-UHFFFAOYSA-N 0.000 description 1
- 238000003408 phase transfer catalysis Methods 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
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- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/141—Amines; Quaternary ammonium compounds
- C23F11/142—Hydroxy amines
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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Abstract
The invention discloses a kind of industrial boiler water-supply condensate system anti-incrustation corrosion inhibitor compositions and application thereof.Said composition comprises chain alkyl hydramine, cyclohexylamine and/or morpholine, ethanolamine and/or DEAE diethylaminoethanol, deoxidizer and dispersant, and the weight ratio of described chain alkyl hydramine, cyclohexylamine and/or morpholine, ethanolamine and/or DEAE diethylaminoethanol, deoxidizer and dispersant is 1:1～10:1～10:0.25～1:0.05～10.This anti-incrustation corrosion inhibitor has film forming, neutralization, rational phase distribution ratio, and trace adds inhibition and the scale inhibition performance that just can reach up to 99%, obvious energy conservation, efficient scale corrosion inhibitor easy to use, stable, can be widely used in various boiler feedwater and condensate system.
Description
Technical field
The present invention relates to Treatment of Industrial Water technical field, particularly relate to industrial boiler water-supply steam condensate system scale inhibition
Corrosion inhibiter and application thereof.
Background technology
It is the high-quality boiler feedwater containing heat energy that steam condensate particularly Boiler Steam condenses water, and recovered steam condenses
Water is boiler water saving, energy-conservation maximally effective measure, is used as reclaimed, and can obviously reduce boiler oil consumption, reduces and softens
Water consumption, reduces production of steam cost, improves boiler water quality situation.But, owing to steam containing aerobic and free carbon dioxide,
After heat exchange during steam condensation, carbon dioxide solubility forms carbonic acid in condensing water, thus destroys the protecting film of metal surface also
Causing sour corrosion, corrosion of metal speed to depend on temperature and acid concentration, when pH is less than 6.2, carbon steel is in condensing water
Corrosion rate is proportional with the concentration of carbonic acid.When the pH condensing water is relatively low, corrosion product dissolves, and causes condensation water by iron ion
Pollute.When undressed condensation water is as boiler water-filling, in water, contained a large amount of iron ions can occur two in boiler heat-transfer face
Secondary fouling and underdeposit corrosion, cause bigger harm so that steam condensate directly recycles difficult.Therefore, have a lot
Industrial Boiler designs in system and steam plant, does not just account for condensing the recovery of water, coagulated by steam good for quality during installation
Bear water and waste.Although condensate-water polishing is done boiler water-filling by some user, but owing to lacking effective pipeline anticorrosion
Measure and Ion exchange resin technology, condensate-water polishing pipeline seriously corroded, condense iron ion content in water higher, directly affect pot
The safe operation of stove.Existing it is mainly aeration filtration except ferrum measure, although the iron concentration in condensation water can be made to reduce,
But polluting and yet suffer from, corrosion still occurs, will there is leakage because of corrosion failure in general condensing water conduit 2～3 years, cause coagulating
Bear water pipeline cannot repair.
China's active boiler has more than 50 ten thousand at present, the steam ton up to a million that every day produces.Tight for this, China
Weight hydropenia, the energy lacks, the country of ecological environment frailty, it is achieved condense the abundant recycling of water, have huge great society and
Economic benefit.And to realize condensing the efficient recovery of water, the quality controlling to condense water is crucial, more it is crucial that control boiler corrosion
Degree, thus increase water quality.
The domestic corrosion control to industrial boiler water-supply condensed water is studied, but is only limitted to use common filming amine
Control boiler feedwater and condense the corrosion of water.
CN1557746A discloses a kind of industrial boiler steam condensate system corrosion inhibiter, including 12～18 carbon atoms
Alkylamine or its epoxidized alkyl amine, polyoxyethylene sorbitan fatty acid ester, sorbitan fatty acid ester, morpholine, ring
Hexylamine and/or ammonia, suitable quantity of water, be a kind of emulsion.But alkylamine and the sorbitan fatty due to 12～18 carbon atoms
The dissolubility of acid esters is bad, easily causes layering, unstable, and effect is unstable in actual applications.CN1220244A、
CN1048897 discloses water treatment agent and the method for treating water of a kind of soft water Boilers, wherein contains in the energy water of active component
Release compound and the polyamine H of aliphatic hydroxy carboxylic acids ion2N(CH2CH2NH)nH(nIt is 2～5), use this active component to prevent
The corrosion of the ferrum of pure water or soft water Boilers water system.This component has still used the compound of zirconium, stannum, manganese or nickel ion, and uncomfortable
Steam generator system together in mesohigh.CN1179348A discloses a kind of high-pressure boiler vapour phase inhibitor and preparation method, by 18
Amine, deionized water and surfactant, oxygen scavenger composition.Wherein 18-amine. 10 kilograms, add deionized water 50 kilograms or more than,
Surfactant 0.1～10 kilograms, oxygen scavenger 0～30 kilograms of mixing compositions.CN105420734A discloses a kind of high-temperature steam
Corrosion inhibiter and application process thereof, this high-temperature steam corrosion inhibiter includes fatty amine, possibly together with polyamine.Described fatty amine is 12
～the one of 18-amine., polyamine is hexamethylenetetramine, diethylenetriamine.CN103253778A discloses a kind of Industrial Boiler
Steam condensate (SC) corrosion inhibiter, the raw material of this corrosion inhibiter percent mass proportioning is: 12 (or 18) alkyl amine acetate 5%～
10%, cyclohexylamine or morpholine 60%～80%, ethylene diamine tetra methylene phosphonic acid sodium salt 3%～10%, surplus be distilled water or go from
Sub-water.CN102181869A discloses a kind of boiler water-feeding multifunctional corrosion inhibitor and compound method thereof, and this corrosion inhibiter is by carbohydrazide
And oligomer 10～15%, organic amine pH value regulator 12～18%, vapour phase film former 15～20%, surplus is deionization
Water.Wherein vapour phase film former is the long-chain fat amine more than 12 carbon atoms.CN101195919A discloses a kind of film forming inhibition
Agent and application thereof, this film former at least includes the 18-amine. of 30～50%, 20～the imidazoline amide of 30%, and surplus is phosphinylidyne
Hydrazine.EP1045045B1 discloses a kind of compositions processing Industrial Boiler water and method for treating water, and said composition includes at least one
Kind as the ethanolamine 30 of pH adjusting agent～70% and long-chain fat polyamines 5～30% and the substituted aryl sulfonic acid of alkyl and salt thereof
20～40%, but bad to the corrosion mitigating effect of copper equipment.
Owing to data disclosed above being all the fatty amine having used long-chain, owing to the character of long-chain fat amine is special, no
It is dissolved in water, or needs to use ackd salt, all add the degree of difficulty in use, in use need the highest operation water
Flat, using effect is the most undesirable.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention
Purpose is to propose a kind of easy, stable, efficient industrial boiler water-supply condensate system anti-incrustation corrosion inhibitor compositions and one
Anti-incrustation corrosion inhibitor and the application in industrial boiler water-supply condensate system thereof.
For achieving the above object, according to the first aspect of the invention, the industrial boiler water-supply that the present invention provides condenses water
System anti-incrustation corrosion inhibitor compositions, comprises chain alkyl hydramine, cyclohexylamine and/or morpholine, ethanolamine and/or diethylamino
Ethanol, deoxidizer and dispersant, described chain alkyl hydramine, cyclohexylamine and/or morpholine, ethanolamine and/or diethylamino second
The weight ratio of alcohol, deoxidizer and dispersant is 1:1～10:1～10:0.25～1:0.05～10.
According to one embodiment of present invention, described chain alkyl polyamine has a structural formula of (I) as follows:
Wherein:
N is selected from the integer for 1-6；
R1Selected from the straight chain saturated alkyl containing 4-22 carbon atom；
R2Selected from CH2CH2, CH2CH2CH2, CH2CH2CH2CH2CH2CH2。
According to one embodiment of present invention, described chain alkyl hydramine, there is the structural formula of following (II):
Wherein:
M is selected from the integer for 1-6；
R3Selected from the straight chain saturated alkyl containing 4-22 carbon atom；
R4Selected from CH2CH2, CH2CH2CH2, CH2CH2CH2CH2CH2CH2。
According to one embodiment of present invention, described deoxidizer is selected from diethyl hydroxylamine, hydroquinone, carbohydrazide at least
A kind of.
According to one embodiment of present invention, described dispersant is selected from as xylene monosulfonic acid, isopropyl sulfonic acid, poly-methyl
Acrylic acid, poly (acid anhydride), maleic acid (acid anhydride) are total to styrene sulfonic acid with copolymer, the methacrylic acid of styrene sulfonic acid
At least one in polymers.
According to one embodiment of present invention, BTA, methyl benzotriazazole, 4 (5)-n-butylbenzenes are also comprised
And at least one in triazole and 4 (5)-dodecyl BTAs.
According to the second aspect of the invention, the anti-incrustation corrosion inhibitor that the present invention provides, described anti-incrustation corrosion inhibitor contains scale inhibition
Corrosion inhibiter compositions and water, described anti-incrustation corrosion inhibitor compositions is anti-incrustation corrosion inhibitor compositions as above.
According to one embodiment of present invention, the content of described anti-incrustation corrosion inhibitor compositions is 10～70 weight %.
According to the third aspect of the present invention, the present invention proposes anti-incrustation corrosion inhibitor as above at various industrial steams
Application in boiler feedwater and condensate system.
According to one embodiment of present invention, the addition of described anti-incrustation corrosion inhibitor is 5～50mg/L water.
The anti-incrustation corrosion inhibitor of the present invention, makes industrial boiler water-supply and the processing cost of steam condensate and line service
Amount significantly reduces；The anti-incrustation corrosion inhibitor of the present invention can significantly improve the corrosion mitigating effect of boiler and jet chimney, to boiler water quality
Subject range width, dosage is few, and scale inhibitor processing procedure is simple and effect is obvious, it is easy to popularization and application.
The invention have the advantages that
1) film-formation result is good, and the anti-incrustation corrosion inhibitor of the present invention is a kind of mixed type anti-incrustation corrosion inhibitor, is formed in metal surface
Film hydrophobicity is strong, and film is fine and close and firm.Film forming protection domain is wide, can not only protect steam generator system, and steam turbine can be protected to be
System.
2) the anti-incrustation corrosion inhibitor physicochemical properties of the present invention are stable, nontoxic, harmless.It is applicable to various material such as carbon steel,
Rustless steel, the condensed water in boiler pipeline of copper or heat exchanger etc., can significantly control fouling and the corrosion of less than 200 DEG C boilers.Due to
The stability of compositions, also can keep being passivated antiseptic effect at 550 DEG C very well.
3) scale inhibitor rate is higher than 99%, does not affect condensation water quality, can control the lowest conductance, can directly return boiler
Use water.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that described herein specifically
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The industrial boiler water-supply steam condensate anti-incrustation corrosion inhibitor compositions of the present invention comprises chain alkyl hydramine, hexamethylene
Amine and/or morpholine, ethanolamine and/or DEAE diethylaminoethanol, deoxidizer and dispersant, described chain alkyl hydramine, cyclohexylamine
And/or the weight ratio of morpholine, ethanolamine and/or DEAE diethylaminoethanol, deoxidizer and dispersant is 1:1～10:1～10:
0.25～1:0.05～0.5, preferably 1:2～5:2～5:0.25～0.5:0.5～5.0.
According to the present invention, described chain alkyl hydramine is the key component in compositions, has the structure of following (I)
Formula:
Wherein:
N is selected from the integer for 1-6, the integer of preferably 1-4；When n is more than 6, this compound solubility is very big, be unfavorable for into
Enter gas phase.
R1 is selected from the straight chain saturated alkyl containing 4～22 carbon atoms, the more preferably saturated straight chain containing 10～16 carbon atoms
Alkyl；
R2 is selected from CH2CH2, CH2CH2CH2, CH2CH2CH2CH2, CH2CH2CH2CH2CH2,
CH2CH2CH2CH2CH2CH2；More preferably CH2CH2, CH2CH2CH2, CH2CH2CH2CH2CH2CH2；
According to the present invention, described chain alkyl hydramine, there is the structural formula of following (II):
Wherein:
M is selected from the integer for 1-6, the integer of preferably 1-4；When n is more than 6, this compound solubility is very big, be unfavorable for into
Enter gas phase.
R3 is selected from the straight chain saturated alkyl containing 4～22 carbon atoms, the more preferably saturated straight chain containing 10～16 carbon atoms
Alkyl；
R4 is selected from CH2CH2, CH2CH2CH2, CH2CH2CH2CH2, CH2CH2CH2CH2CH2,
CH2CH2CH2CH2CH2CH2；More preferably CH2CH2, CH2CH2CH2, CH2CH2CH2CH2CH2CH2；
Described chain alkyl hydramine i.e. beta-amino long-chain alkyl alcohol and α-aminomethyl long-chain alkyl alcohol.It can be by often
Method synthesis, as used long-chain alpha-olefin by epoxidation, then can be obtained by above-mentioned product with amination.Reaction signal
Process is as follows:
Common such as long-chain alpha-olefin, such as 1-hexene, 1-octene, 1-laurylene, 1-tetradecylene, 1-hexadecylene, 1-18
Alkene etc., conventional diamidogen, can be ethylenediamine, diethylenetriamine, triethylene tetramine, propane diamine, dipropylenetriamine, butanediamine,
Pentanediamine, hexamethylene diamine, two hexamethylene triamines etc., react according to different proportionings, it is possible to obtain chain alkyl hydramine (I) and
(II)。
According to the present invention, chain alkyl hydramine has outstanding feature than conventional long-chain fat amine: 1) long-chain alkyl alcohol
Amine has the biggest dissolubility in aqueous, can preferably use, and conventional octadecylamine, water insoluble；2) long-chain
Alkyl alcoholamine is owing to having more secondary amino group, amido in molecular structure, hydroxyl can adsorb more point in metal surface, improves
The firm intensity of adsorbed film, thus improve corrosion mitigating effect.Primary, secondary amino in these alkyl alcoholamines, hydroxyl is in metal surface
Absorption, forms the monolayer protecting film with hydrophobic effect, and metal surface is separated by protecting film with water, due between membrane molecule
Void ratio O2And CO2Cross section little, thus prevent O2And CO2To corrosion of metal, protecting film is fine and close and stable, and uses short
The hydramine of chain does not then have such effect.
According to the present invention, the cyclohexylamine in compositions and/or morpholine, can under the different temperatures of boiler water, balance gas phase/
The concentration of corrosion inhibiter in liquid phase, improves corrosion mitigating effect, improves the corrosion inhibiter operating distance at jet chimney.Ethanol in compositions
Amine and/or DEAE diethylaminoethanol can balance the pH of boiler water, have the effect of buffer agent.
According to the present invention, described deoxidizer is as the important component in compositions, selected from diethyl hydroxylamine, hydroquinone, carbon
At least one in hydrazides.It can be stopped a leak the oxygen in boiler further, improves corrosion mitigating effect.
According to the present invention, described dispersant, as the important component in compositions, can prevent incrustation ion and iron ion
Deposit to metal surface, cause spot corrosion.Due to the high temperature feature of boiler, need to select the dispersant of high-temperature stable, preferably be selected from
Xylene monosulfonic acid, isopropyl sulfonic acid, polymethylacrylic acid, poly (acid anhydride), maleic acid (acid anhydride) and the copolymerization of styrene sulfonic acid
Thing, methacrylic acid and at least one in the copolymer of styrene sulfonic acid, polyacrylic acid, poly (acid anhydride), maleic acid
The copolymer of (acid anhydride) and the copolymer of styrene sulfonic acid, methacrylic acid and styrene sulfonic acid, the Weight-average molecular of these polymer
Amount is 1000～5000.
According to the present invention, owing to nitrogen azole material can further enhance anti-incrustation corrosion inhibitor suppression carbon steel and the merit of copper corrosion
Can, described compositions can also comprise nitrogen azole material, selected from BTA, methyl benzotriazazole, 4 (5)-n-butylbenzenes
And triazole and or 4 (5)-dodecyl BTAs at least one.Chain alkyl hydramine and nitrogen azole material
Mass ratio is 1:0.05～1.0, preferably 1:0.1～0.5.
The anti-incrustation corrosion inhibitor of the present invention contains above-mentioned anti-incrustation corrosion inhibitor compositions and water.
According to the present invention, in described anti-incrustation corrosion inhibitor, the content of anti-incrustation corrosion inhibitor compositions can be as required wider
In the range of select, under preferable case, the content of described anti-incrustation corrosion inhibitor compositions is 10～70 weight %, more preferably
20～40 weight %.
According to the present invention, described anti-incrustation corrosion inhibitor can be obtained by existing various methods, such as can be by being formed
State the raw material of anti-incrustation corrosion inhibitor to prepare according to aforementioned required ratio mix homogeneously, therefore the present invention to the step of described mixing with
Condition is without particular/special requirement.
The anti-incrustation corrosion inhibitor of present invention application in processing cycle water, it is characterised in that described anti-incrustation corrosion inhibitor is upper
State anti-incrustation corrosion inhibitor.
According to the present invention, the addition of described anti-incrustation corrosion inhibitor can be 2～100mg/L water, preferably 10～40mg/L
Water, when anti-incrustation corrosion inhibitor addition in water above-mentioned preferably in the range of time, show the most excellent scale-inhibiting properties with
Corrosion inhibition.
Hereinafter will be described the present invention by embodiment.In following example, embodiment A, B, C are used for illustrating
The synthesis of chain alkyl hydramine, embodiment 1-6 is used for anti-incrustation corrosion inhibitor compositions and anti-incrustation corrosion inhibitor and preparation side thereof are described
Method, in embodiment, agents useful for same quality all calculates with effective content.The reagent used in embodiment is as follows: polymethyl
Acid (Active quantities is 50%, purchased from Changzhou Wujin water quality stabilizer factory)；Poly (
Active quantities is 50%, purchased from Changzhou Wujin water quality stabilizer factory)；Maleic acid/Styrene Sulfonic Acid Copolymer (Content 45%, purchased from Co., Ltd in ROHM AND HAAS)；Isopropyl sulfonic acid, BTA, methyl benzo
Triazole, normal-butyl BTA, cyclohexylamine, morpholine, ethanolamine, DEAE diethylaminoethanol, diethyl hydroxylamine, hydroquinone, carbon
Hydrazides, propane diamine, diethylenetriamine (is analytical pure, purchased from Chemical Reagent Co., Ltd., Sinopharm Group)；1-octadecylene, 1-ten
Six alkene (purchased from sigma-Aldrich company)
Embodiment A
The synthesis of N-(2-hydroxyoctadecanoic base)-1,3-propane diamine
Weigh 0.1mol 1-octadecylene, be dissolved in normal hexane, be subsequently adding 0.001mol heteropoly acid phase transfer catalysis
Agent, then drips 30% hydrogen peroxide, controls temperature less than 50 degree, reacts 3 hours, separates epoxide, then with 0.1mol
Propane diamine reaction, react 2 hours, then dilute with water separation, obtains N-(2-hydroxyoctadecanoic base)-1,3-propane diamine (hydramine
A)。
Embodiment B
The building-up process of N-(2-hydroxyhexadecanoic base)-diethylentriamine ibid, except with and ethylene triamine replaces the third two
Amine (hydramine B).
Embodiment C
N, N '-two (2-hydroxyoctadecanoic base)-1, the building-up process of 3-propane diamine ibid, except using the third the two of 0.2mol
Amine (hydramine C).
Embodiment 1
Weigh hydramine A 1.0g, cyclohexylamine 3.5g, ethanolamine 3.5g, diethyl hydroxylamine 0.35g, poly 2.5g, first
Base BTA 0.25g, is finally diluted with water to 40% content liquid medicine, stirs.
Embodiment 2
Weigh hydramine A 1.0g, morpholine 2.0g, ethanolamine 2.0g, diethyl hydroxylamine 0.25g, maleic acid/styrene sulfonic acid
Copolymer 5.0g, normal-butyl BTA 0.5g, be finally diluted with water to 40% content liquid medicine, stir.
Embodiment 3
Weigh hydramine A 1.0g, morpholine 5.0g, ethanolamine 5.0g, diethyl hydroxylamine 0.5g, polymethylacrylic acid 0.5g, benzene
And triazole 0.1g, finally it is diluted with water to 40% content liquid medicine, stirs.
Embodiment 4
Weigh hydramine B 1.0g, cyclohexylamine 10.0g, DEAE diethylaminoethanol 10.0g, carbohydrazide 1.0g, isopropyl sulfonic acid
10.0g, is finally diluted with water to 40% content liquid medicine, stirs.
Embodiment 5
Weigh hydramine C 1.0g, N-octadecylamino ethanol 5.0g, cyclohexylamine 1.0g, DEAE diethylaminoethanol 1.0g,
Hydroquinone 0.25g, xylene monosulfonic acid 0.05g, be finally diluted with water to 40% content liquid medicine, stir.
Embodiment 6
Weigh hydramine B 1.0g, morpholine 1.5g, ethanolamine 8.0g, diethyl hydroxylamine 0.75g, methacrylic acid/styrene
Sulfonic acid copolymer 8.0g, is finally diluted with water to 40% content liquid medicine, stirs.
Comparative example 1 prepares corrosion inhibiter according to embodiment in CN1557746A 1.
Comparative example 2 prepares corrosion inhibiter according to embodiment in EP1045045B1 1.
Comparative example 3
Anti-incrustation corrosion inhibitor is configured, except using 2-aminopropanol to replace hydramine A according to embodiment 1 method.
Comparative example 4
Anti-incrustation corrosion inhibitor is configured, except using 2-aminopropanol to replace hydramine B according to embodiment 4 method.
Comparative example 5
Anti-incrustation corrosion inhibitor is configured, except using 18-amine. to replace hydramine A according to embodiment 1 method.
Test case
Embodiment 1-6 and comparative example 1-5 carrying out scale inhibition and inhibition measures, method of testing is with reference to HG/T 3924-2007
" water-treating agent of boiler method of evaluating performance dynamic method ", result of the test is shown in Table 1.
Table 1
From table 1 experimental result it can be seen that the anti-incrustation corrosion inhibitor of the present invention has good scale-inhibiting properties, scale inhibition performance
Reach more than 98%, carbon steel corrosion inhibition rate more than 99%, copper corrosion inhibition rate more than 98%；From the above it can also be seen that the present invention
Anti-incrustation corrosion inhibitor concentration low, when the addition processed in boiler water is 5-50mg/L, ease up at 10-40mg/L scale inhibition
Erosion performance is the most excellent.
By the experimental result of embodiment 1 and comparative example 1 and 2 it can be seen that the anti-incrustation corrosion inhibitor of the present invention has more excellent
Different scale inhibitor effect.
By embodiment 1 and comparative example 3, the experimental result of embodiment 4 and comparative example 4 is it can be seen that use in the present invention
Chain alkyl hydramine, there is obvious inhibition potentiation, and use the alkyl alcoholamine of short chain equally, satisfaction can not be obtained
Corrosion mitigating effect.
By embodiment 1 with the experimental result of comparative example 5 it can be seen that the chain alkyl hydramine of the use present invention is than conventional
18-amine. can obtain more significant corrosion mitigating effect；And chain alkyl hydramine dissolubility in water is big, it is easier to add control.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple simple variant, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. an industrial boiler water-supply condensate system anti-incrustation corrosion inhibitor compositions, it is characterised in that said composition comprises length
Alkylalkanolamines, cyclohexylamine and/or morpholine, ethanolamine and/or DEAE diethylaminoethanol, deoxidizer and dispersant, described long-chain
The weight ratio of alkyl alcoholamine, cyclohexylamine and/or morpholine, ethanolamine and/or DEAE diethylaminoethanol, deoxidizer and dispersant is 1:
1～10:1～10:0.25～1:0.05～10.
Anti-incrustation corrosion inhibitor compositions the most according to claim 1, it is characterised in that described chain alkyl polyamine has
The structural formula of (I) as follows:
Wherein:
N is selected from the integer for 1-6；
R1Selected from the straight chain saturated alkyl containing 4-22 carbon atom；
R2Selected from CH2CH2, CH2CH2CH2, CH2CH2CH2CH2CH2CH2。
Anti-incrustation corrosion inhibitor compositions the most according to claim 1, it is characterised in that described chain alkyl hydramine, tool
There is a structural formula of following (II):
Wherein:
M is selected from the integer for 1-6；
R3Selected from the straight chain saturated alkyl containing 4-22 carbon atom；
R4Selected from CH2CH2, CH2CH2CH2, CH2CH2CH2CH2CH2CH2。
Anti-incrustation corrosion inhibitor compositions the most according to claim 1, it is characterised in that described deoxidizer is selected from diethyl
At least one in azanol, hydroquinone, carbohydrazide.
Anti-incrustation corrosion inhibitor compositions the most according to claim 1, it is characterised in that described dispersant is selected from as diformazan
Benzenesulfonic acid, isopropyl sulfonic acid, polymethylacrylic acid, poly (acid anhydride), maleic acid (acid anhydride) and the copolymer of styrene sulfonic acid, first
Base acrylic acid and at least one in the copolymer of styrene sulfonic acid.
Anti-incrustation corrosion inhibitor compositions the most according to claim 1, it is characterised in that also comprise BTA, methyl
At least one in BTA, 4 (5)-normal-butyl BTAs and 4 (5)-dodecyl BTAs.
7. an anti-incrustation corrosion inhibitor, described anti-incrustation corrosion inhibitor contains anti-incrustation corrosion inhibitor compositions and water, it is characterised in that described
Anti-incrustation corrosion inhibitor compositions is the anti-incrustation corrosion inhibitor compositions described in any one in claim 1-6.
Anti-incrustation corrosion inhibitor the most according to claim 7, it is characterised in that the content of described anti-incrustation corrosion inhibitor compositions is
10～70 weight %.
9. the application in the feedwater of various industrial steam boilers and condensate system of the anti-incrustation corrosion inhibitor described in claim 7 or 8.
Anti-incrustation corrosion inhibitor the most according to claim 9 answering in the feedwater of various industrial steam boilers and condensate system
With, it is characterised in that the addition of described anti-incrustation corrosion inhibitor is 5～50mg/L water.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642497A (en) * | 2018-05-17 | 2018-10-12 | 杭州意能电力技术有限公司 | A kind of Shut-down Protection method of vapour phase inhibitor, preparation method and therrmodynamic system |
| CN109019885A (en) * | 2018-07-10 | 2018-12-18 | 上海洗霸科技股份有限公司 | Closed Cycle water system phosphorus-free composite water treatment agent and the preparation method and application thereof |
| WO2024115457A1 (en) * | 2022-11-29 | 2024-06-06 | Arteco N.v. | Heat-transfer fluids with low electrical conductivity comprising hydroxylamine or oxime functionality, methods for their preparation and uses thereof |
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| US4299725A (en) * | 1975-05-07 | 1981-11-10 | Henkel Kommanditgesellschaft Auf Aktien | Aqueous media of decreased corrosiveness for iron-containing metals |
| CN1821214A (en) * | 2005-02-15 | 2006-08-23 | 气体产品与化学公司 | Corrosion inhibitors comprising nitrogen functionality |
| CN103771596A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor, applications thereof, and processing method for circulating water |
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| US4299725A (en) * | 1975-05-07 | 1981-11-10 | Henkel Kommanditgesellschaft Auf Aktien | Aqueous media of decreased corrosiveness for iron-containing metals |
| CN1821214A (en) * | 2005-02-15 | 2006-08-23 | 气体产品与化学公司 | Corrosion inhibitors comprising nitrogen functionality |
| CN103771596A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Phosphorus-free composite scale and corrosion inhibitor, applications thereof, and processing method for circulating water |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642497A (en) * | 2018-05-17 | 2018-10-12 | 杭州意能电力技术有限公司 | A kind of Shut-down Protection method of vapour phase inhibitor, preparation method and therrmodynamic system |
| CN108642497B (en) * | 2018-05-17 | 2019-11-15 | 杭州意能电力技术有限公司 | A kind of Shut-down Protection method of vapour phase inhibitor, preparation method and therrmodynamic system |
| CN109019885A (en) * | 2018-07-10 | 2018-12-18 | 上海洗霸科技股份有限公司 | Closed Cycle water system phosphorus-free composite water treatment agent and the preparation method and application thereof |
| WO2024115457A1 (en) * | 2022-11-29 | 2024-06-06 | Arteco N.v. | Heat-transfer fluids with low electrical conductivity comprising hydroxylamine or oxime functionality, methods for their preparation and uses thereof |
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Application publication date: 20161221 |