CN102618329A - 一种汽油加工方法 - Google Patents
一种汽油加工方法 Download PDFInfo
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- CN102618329A CN102618329A CN2011100340387A CN201110034038A CN102618329A CN 102618329 A CN102618329 A CN 102618329A CN 2011100340387 A CN2011100340387 A CN 2011100340387A CN 201110034038 A CN201110034038 A CN 201110034038A CN 102618329 A CN102618329 A CN 102618329A
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- gasoline
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- hydrogenation
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- 239000003502 gasoline Substances 0.000 title claims abstract description 82
- 238000003672 processing method Methods 0.000 title abstract 3
- 239000003054 catalyst Substances 0.000 claims abstract description 63
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 43
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 36
- 230000023556 desulfurization Effects 0.000 claims abstract description 36
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 25
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 18
- 238000006266 etherification reaction Methods 0.000 claims abstract description 17
- 239000001257 hydrogen Substances 0.000 claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 45
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 34
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 29
- 229910052750 molybdenum Inorganic materials 0.000 claims description 29
- 239000011733 molybdenum Substances 0.000 claims description 29
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 24
- 239000010937 tungsten Substances 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 19
- 238000009835 boiling Methods 0.000 claims description 16
- 238000002203 pretreatment Methods 0.000 claims description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 239000003153 chemical reaction reagent Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 10
- 239000000470 constituent Substances 0.000 claims description 7
- 150000002431 hydrogen Chemical class 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 3
- 229910052909 inorganic silicate Inorganic materials 0.000 claims description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 abstract description 19
- 238000005520 cutting process Methods 0.000 abstract description 14
- 150000001993 dienes Chemical class 0.000 abstract description 10
- 239000004480 active ingredient Substances 0.000 abstract 2
- 239000000047 product Substances 0.000 description 35
- 239000003921 oil Substances 0.000 description 28
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 27
- 239000005864 Sulphur Substances 0.000 description 18
- 238000012545 processing Methods 0.000 description 16
- 229910052717 sulfur Inorganic materials 0.000 description 16
- 239000011593 sulfur Substances 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 150000002815 nickel Chemical class 0.000 description 9
- 150000003657 tungsten Chemical class 0.000 description 8
- 239000011964 heteropoly acid Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 150000002751 molybdenum Chemical class 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 4
- 238000004523 catalytic cracking Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 208000013586 Complex regional pain syndrome type 1 Diseases 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000003889 chemical engineering Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- QGAVSDVURUSLQK-UHFFFAOYSA-N ammonium heptamolybdate Chemical compound N.N.N.N.N.N.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo] QGAVSDVURUSLQK-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910021472 group 8 element Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 229920001206 natural gum Polymers 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000006902 nitrogenation reaction Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000003079 shale oil Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 1
- 102100039339 Atrial natriuretic peptide receptor 1 Human genes 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 101000961044 Homo sapiens Atrial natriuretic peptide receptor 1 Proteins 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- XUFUCDNVOXXQQC-UHFFFAOYSA-L azane;hydroxy-(hydroxy(dioxo)molybdenio)oxy-dioxomolybdenum Chemical compound N.N.O[Mo](=O)(=O)O[Mo](O)(=O)=O XUFUCDNVOXXQQC-UHFFFAOYSA-L 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010812 external standard method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- JSOQIZDOEIKRLY-UHFFFAOYSA-N n-propylnitrous amide Chemical compound CCCNN=O JSOQIZDOEIKRLY-UHFFFAOYSA-N 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004230 steam cracking Methods 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 239000011275 tar sand Substances 0.000 description 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000000207 volumetry Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
Abstract
Description
原料 | 汽油性质 |
总硫含量(mg/L) | 1020 |
二烯含量(g I2/100mL) | 3 |
丙烷-2-硫醇含量(mg/L) | 12 |
单烯含量(g Br2/100mL) | 32 |
馏程(℃) | 32-203 |
研究法辛烷值 | 91.8 |
密度(20℃g/cm3) | 0.7451 |
胶质(mg/100mL) | 0.4 |
Claims (10)
Priority Applications (1)
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CN201110034038.7A CN102618329B (zh) | 2011-01-31 | 2011-01-31 | 一种汽油加工方法 |
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Application Number | Priority Date | Filing Date | Title |
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CN201110034038.7A CN102618329B (zh) | 2011-01-31 | 2011-01-31 | 一种汽油加工方法 |
Publications (2)
Publication Number | Publication Date |
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CN102618329A true CN102618329A (zh) | 2012-08-01 |
CN102618329B CN102618329B (zh) | 2014-06-04 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108659884A (zh) * | 2017-03-28 | 2018-10-16 | 中国石油化工股份有限公司 | 汽油脱硫的方法 |
CN108949229A (zh) * | 2017-05-19 | 2018-12-07 | 中国石油化工股份有限公司 | 生产清洁汽油的方法及系统 |
Citations (10)
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---|---|---|---|---|
CN1046549A (zh) * | 1989-04-22 | 1990-10-31 | 抚顺石油学院 | 含烯烃汽油的醚化工艺方法 |
CN1048722A (zh) * | 1989-07-11 | 1991-01-23 | 抚顺石油学院 | 含烯烃汽油的临氢醚化工艺方法 |
CN1319644A (zh) * | 2000-03-29 | 2001-10-31 | 法国石油公司 | 包括由至少三馏分精馏的重馏分和中间馏分脱硫的汽油脱硫方法 |
CN1475550A (zh) * | 2002-06-07 | 2004-02-18 | 法国石油公司 | 硫和氮含量低的烃的生产方法 |
CN1654602A (zh) * | 2004-02-13 | 2005-08-17 | 北京保时洁精细化工有限公司 | 含烯烃轻汽油醚化方法 |
CN1766057A (zh) * | 2004-10-27 | 2006-05-03 | 催化蒸馏技术公司 | 生产低硫低烯烃汽油的方法 |
CN1769388A (zh) * | 2004-10-29 | 2006-05-10 | 中国石油化工股份有限公司 | 一种降低劣质汽油硫和烯烃含量的加氢改质方法 |
US7374667B2 (en) * | 2001-03-12 | 2008-05-20 | Bp Corporation North America, Inc. | Process for the production of gasoline with a low sulfur content comprising a stage for transformation of sulfur-containing compounds, an acid-catalyst treatment and a desulfurization |
CN101724456A (zh) * | 2008-10-23 | 2010-06-09 | 中国石油化工股份有限公司 | 一种生产芳烃抽提原料的加氢方法 |
CN101885985A (zh) * | 2010-07-02 | 2010-11-17 | 中国石油大学(北京) | 一种超低硫且高辛烷值汽油的生产方法 |
-
2011
- 2011-01-31 CN CN201110034038.7A patent/CN102618329B/zh active Active
Patent Citations (10)
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CN1046549A (zh) * | 1989-04-22 | 1990-10-31 | 抚顺石油学院 | 含烯烃汽油的醚化工艺方法 |
CN1048722A (zh) * | 1989-07-11 | 1991-01-23 | 抚顺石油学院 | 含烯烃汽油的临氢醚化工艺方法 |
CN1319644A (zh) * | 2000-03-29 | 2001-10-31 | 法国石油公司 | 包括由至少三馏分精馏的重馏分和中间馏分脱硫的汽油脱硫方法 |
US7374667B2 (en) * | 2001-03-12 | 2008-05-20 | Bp Corporation North America, Inc. | Process for the production of gasoline with a low sulfur content comprising a stage for transformation of sulfur-containing compounds, an acid-catalyst treatment and a desulfurization |
CN1475550A (zh) * | 2002-06-07 | 2004-02-18 | 法国石油公司 | 硫和氮含量低的烃的生产方法 |
CN1654602A (zh) * | 2004-02-13 | 2005-08-17 | 北京保时洁精细化工有限公司 | 含烯烃轻汽油醚化方法 |
CN1766057A (zh) * | 2004-10-27 | 2006-05-03 | 催化蒸馏技术公司 | 生产低硫低烯烃汽油的方法 |
CN1769388A (zh) * | 2004-10-29 | 2006-05-10 | 中国石油化工股份有限公司 | 一种降低劣质汽油硫和烯烃含量的加氢改质方法 |
CN101724456A (zh) * | 2008-10-23 | 2010-06-09 | 中国石油化工股份有限公司 | 一种生产芳烃抽提原料的加氢方法 |
CN101885985A (zh) * | 2010-07-02 | 2010-11-17 | 中国石油大学(北京) | 一种超低硫且高辛烷值汽油的生产方法 |
Non-Patent Citations (1)
Title |
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戴丹等: "Ni-Mo/Al2O3上催化裂化轻汽油的选择性加氢", 《辽宁石油化工大学学报》, vol. 25, no. 2, 30 June 2005 (2005-06-30), pages 36 - 38 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108659884A (zh) * | 2017-03-28 | 2018-10-16 | 中国石油化工股份有限公司 | 汽油脱硫的方法 |
CN108659884B (zh) * | 2017-03-28 | 2020-10-27 | 中国石油化工股份有限公司 | 汽油脱硫的方法 |
CN108949229A (zh) * | 2017-05-19 | 2018-12-07 | 中国石油化工股份有限公司 | 生产清洁汽油的方法及系统 |
CN108949229B (zh) * | 2017-05-19 | 2020-10-27 | 中国石油化工股份有限公司 | 生产清洁汽油的方法及系统 |
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CN102618329B (zh) | 2014-06-04 |
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Denomination of invention: Gasoline processing method Effective date of registration: 20170123 Granted publication date: 20140604 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING ENERGY ENGINEERING TECHNOLOGIES Co.,Ltd. Registration number: 2017990000063 |
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Denomination of invention: Gasoline processing method Effective date of registration: 20180205 Granted publication date: 20140604 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING ENERGY ENGINEERING TECHNOLOGIES Co.,Ltd. Registration number: 2018990000128 |
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Denomination of invention: Gasoline processing method Effective date of registration: 20190219 Granted publication date: 20140604 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING ENERGY ENGINEERING TECHNOLOGIES Co.,Ltd. Registration number: 2019990000134 |
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Denomination of invention: Gasoline processing method Effective date of registration: 20200507 Granted publication date: 20140604 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING ENERGY ENGINEERING TECHNOLOGIES Co.,Ltd. Registration number: Y2020990000435 |
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Denomination of invention: A gasoline processing method Effective date of registration: 20220428 Granted publication date: 20140604 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: BEIJING ENERGY ENGINEERING TECHNOLOGIES Co.,Ltd. Registration number: Y2022110000108 |
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