CN107551811A - 基于干法和半干法脱硫的烧结烟气scr脱硝工艺 - Google Patents
基于干法和半干法脱硫的烧结烟气scr脱硝工艺 Download PDFInfo
- Publication number
- CN107551811A CN107551811A CN201710819135.4A CN201710819135A CN107551811A CN 107551811 A CN107551811 A CN 107551811A CN 201710819135 A CN201710819135 A CN 201710819135A CN 107551811 A CN107551811 A CN 107551811A
- Authority
- CN
- China
- Prior art keywords
- sintering
- flue gas
- sintering deposit
- deposit
- temperature
- 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.)
- Granted
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 289
- 239000003546 flue gas Substances 0.000 title claims abstract description 145
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 238000000034 method Methods 0.000 title claims abstract description 93
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 55
- 238000001816 cooling Methods 0.000 claims abstract description 53
- 230000023556 desulfurization Effects 0.000 claims abstract description 51
- 238000010531 catalytic reduction reaction Methods 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 9
- 238000012546 transfer Methods 0.000 claims abstract description 8
- 239000002918 waste heat Substances 0.000 claims abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 86
- 238000006243 chemical reaction Methods 0.000 claims description 44
- 229910021529 ammonia Inorganic materials 0.000 claims description 36
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 35
- 239000007789 gas Substances 0.000 claims description 30
- 239000003517 fume Substances 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000000779 smoke Substances 0.000 claims description 11
- 238000011068 loading method Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 abstract description 55
- 230000000694 effects Effects 0.000 abstract description 10
- 231100000572 poisoning Toxicity 0.000 abstract description 9
- 230000000607 poisoning effect Effects 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 16
- 238000010521 absorption reaction Methods 0.000 description 13
- 239000011148 porous material Substances 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 238000001179 sorption measurement Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 239000002841 Lewis acid Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 238000011065 in-situ storage Methods 0.000 description 7
- 150000007517 lewis acids Chemical class 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 235000020985 whole grains Nutrition 0.000 description 5
- 229910002651 NO3 Inorganic materials 0.000 description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910017135 Fe—O Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- 239000007848 Bronsted acid Substances 0.000 description 1
- 229910017488 Cu K Inorganic materials 0.000 description 1
- 229910017541 Cu-K Inorganic materials 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 206010037544 Purging Diseases 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- -1 adsorption temp 77K Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- OXSWKJLAKXNIFG-UHFFFAOYSA-N azane sulfuric acid Chemical compound N.N.N.OS(O)(=O)=O OXSWKJLAKXNIFG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004876 x-ray fluorescence Methods 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
-
- 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
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20738—Iron
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2017104826885 | 2017-06-22 | ||
CN201710482688.5A CN107081064A (zh) | 2017-06-22 | 2017-06-22 | 基于干法和半干法脱硫的烧结烟气scr脱硝工艺 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107551811A true CN107551811A (zh) | 2018-01-09 |
CN107551811B CN107551811B (zh) | 2019-10-25 |
Family
ID=59606426
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710482688.5A Withdrawn CN107081064A (zh) | 2017-06-22 | 2017-06-22 | 基于干法和半干法脱硫的烧结烟气scr脱硝工艺 |
CN201710819135.4A Active CN107551811B (zh) | 2017-06-22 | 2017-09-12 | 基于干法和半干法脱硫的烧结烟气scr脱硝工艺 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710482688.5A Withdrawn CN107081064A (zh) | 2017-06-22 | 2017-06-22 | 基于干法和半干法脱硫的烧结烟气scr脱硝工艺 |
Country Status (1)
Country | Link |
---|---|
CN (2) | CN107081064A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108355488A (zh) * | 2018-03-21 | 2018-08-03 | 中南大学 | 一种铁矿球团的废气循环脱硝方法 |
CN111632478A (zh) * | 2020-07-13 | 2020-09-08 | 安徽紫朔环境工程技术有限公司 | 一种焦炉烟气尘硫硝一体化排放净化方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107575882A (zh) * | 2017-09-26 | 2018-01-12 | 广州智光节能有限公司 | 一种余热锅炉scr烟气脱硝效率调节装置和方法 |
CN109173653A (zh) * | 2018-10-31 | 2019-01-11 | 山东师范大学 | 一种烧结烟气的scr脱硝工艺 |
CN109482047A (zh) * | 2018-11-27 | 2019-03-19 | 杭州宁骏科技有限公司 | 一种半干法脱硫系统 |
CN109772166B (zh) * | 2019-01-15 | 2021-12-24 | 华电电力科学研究院有限公司 | 一种燃气分布式能源脱硝系统装置及运行方法 |
CN109999726B (zh) * | 2019-03-27 | 2023-12-22 | 合肥视微科技有限公司 | 高温高压原位xrd和xas气固反应装置 |
CN112619410B (zh) * | 2020-11-19 | 2021-11-30 | 北京科技大学 | 一种焦炉烟气scr脱硝与余热梯级利用一体化系统及工艺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040213720A1 (en) * | 2001-05-14 | 2004-10-28 | Christian Wolf | Method for treating flue gases containing ammonia |
CN102997697A (zh) * | 2012-12-12 | 2013-03-27 | 武汉钢铁(集团)公司 | 基于烧结烟气净化的烧结矿余热利用工艺 |
CN106621800A (zh) * | 2016-12-26 | 2017-05-10 | 武汉科技大学 | 一种移动床热烧结矿脱硝装置 |
-
2017
- 2017-06-22 CN CN201710482688.5A patent/CN107081064A/zh not_active Withdrawn
- 2017-09-12 CN CN201710819135.4A patent/CN107551811B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040213720A1 (en) * | 2001-05-14 | 2004-10-28 | Christian Wolf | Method for treating flue gases containing ammonia |
CN102997697A (zh) * | 2012-12-12 | 2013-03-27 | 武汉钢铁(集团)公司 | 基于烧结烟气净化的烧结矿余热利用工艺 |
CN106621800A (zh) * | 2016-12-26 | 2017-05-10 | 武汉科技大学 | 一种移动床热烧结矿脱硝装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108355488A (zh) * | 2018-03-21 | 2018-08-03 | 中南大学 | 一种铁矿球团的废气循环脱硝方法 |
CN111632478A (zh) * | 2020-07-13 | 2020-09-08 | 安徽紫朔环境工程技术有限公司 | 一种焦炉烟气尘硫硝一体化排放净化方法 |
Also Published As
Publication number | Publication date |
---|---|
CN107551811B (zh) | 2019-10-25 |
CN107081064A (zh) | 2017-08-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107551811B (zh) | 基于干法和半干法脱硫的烧结烟气scr脱硝工艺 | |
Chen et al. | Effect of Mn and Ce oxides on low-temperature NH3-SCR performance over blast furnace slag-derived zeolite X supported catalysts | |
CN1113680C (zh) | 变温吸附 | |
CN102895857B (zh) | 一种垃圾焚烧烟气综合净化系统及其净化方法 | |
CN102580455A (zh) | 烧结烟气处理系统和方法 | |
CN103585868B (zh) | 一种同步脱硫脱硝脱汞除尘的烟气处理装置及方法 | |
JP3234217U (ja) | 低温移動床一体型吸着脱硫・脱硝システム | |
CN111495111A (zh) | 一种低温固定床一体化吸附脱硫脱硝系统 | |
CN109603459A (zh) | 一种低温干法烟气脱硫剂及其制法和应用 | |
CN209333456U (zh) | 一种活性炭法烟气净化技术与低温脱硝组合式烟气处理系统 | |
CN102266702A (zh) | 一种捕集工业废气中氨气的方法和设备及其应用 | |
CN109999574B (zh) | 一种低硫烟气的流动床活性炭吸附脱硝方法 | |
CN101279186A (zh) | 一种烟气干式同时脱硫脱硝方法 | |
CN107754600A (zh) | 一种烟气同时脱碳脱硫脱硝的钢渣吸收剂及其制备方法和应用 | |
CN105435600A (zh) | 一种污染气体的净化系统及净化方法 | |
CN109794137B (zh) | 一种吸附净化并富集回收烟气氮氧化物的方法及系统 | |
CN115069068A (zh) | 一种水滑石类催化剂催化叔胺溶剂快速低能耗捕获co2的方法 | |
Xing et al. | Mechanism and experimental study of desulfurizing agent based on Mn/Ce-Ca for sintering flue gas desulfurization (FGD) | |
CN106984319A (zh) | 一种用于同时脱除烟气中氮氧化物和有机污染物的铁基复合催化剂及其制备方法 | |
CN208583143U (zh) | 余热利用系统 | |
CN110575741A (zh) | 一种烟气脱硫脱硝装置及方法 | |
JPH0394815A (ja) | 焼結機排ガスの脱硫脱硝方法 | |
CN202845023U (zh) | 一种scr脱硝催化剂的热处理再生装置 | |
CN212790372U (zh) | 一种低温固定床一体化吸附脱硫脱硝系统 | |
CN212417473U (zh) | 一种烟气交流式的活性炭脱硫脱硝一体化工艺系统 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180109 Assignee: Wuhan University of science and Technology Business Incubator Co.,Ltd. Assignor: WUHAN University OF SCIENCE AND TECHNOLOGY Contract record no.: X2020420000008 Denomination of invention: SCR denitration process of sintering flue gas based on dry and semi dry desulfurization Granted publication date: 20191025 License type: Common License Record date: 20201022 |
|
EE01 | Entry into force of recordation of patent licensing contract | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230506 Address after: 2-2-1-61, No. 319, Haier Road, Jiangbei District, Chongqing Patentee after: Chongqing Steady Technology Co.,Ltd. Address before: 430081 No. 947 Heping Avenue, Qingshan District, Hubei, Wuhan Patentee before: WUHAN University OF SCIENCE AND TECHNOLOGY |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20231226 Address after: No. 42-750 Jinyu Avenue, Yuanyang Street, Liangjiang New Area, Yubei District, Chongqing, 401120 Patentee after: Chongqing Yizhuo Environmental Protection Technology Co.,Ltd. Address before: 2-2-1-61, No. 319, Haier Road, Jiangbei District, Chongqing Patentee before: Chongqing Steady Technology Co.,Ltd. |
|
TR01 | Transfer of patent right |