CN112500509B - 一种强化乙烯聚合的系统和工艺 - Google Patents
一种强化乙烯聚合的系统和工艺 Download PDFInfo
- Publication number
- CN112500509B CN112500509B CN201910867780.2A CN201910867780A CN112500509B CN 112500509 B CN112500509 B CN 112500509B CN 201910867780 A CN201910867780 A CN 201910867780A CN 112500509 B CN112500509 B CN 112500509B
- Authority
- CN
- China
- Prior art keywords
- ethylene
- gas
- catalyst
- feeding
- micro
- 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.)
- Active
Links
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 239000005977 Ethylene Substances 0.000 title claims abstract description 96
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008569 process Effects 0.000 title claims abstract description 14
- 238000005728 strengthening Methods 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 126
- 238000006243 chemical reaction Methods 0.000 claims abstract description 114
- 239000003999 initiator Substances 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 238000007599 discharging Methods 0.000 claims abstract description 40
- 239000002904 solvent Substances 0.000 claims abstract description 36
- 239000000839 emulsion Substances 0.000 claims abstract description 25
- 230000002708 enhancing effect Effects 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims description 83
- 239000003638 chemical reducing agent Substances 0.000 claims description 58
- 239000004698 Polyethylene Substances 0.000 claims description 53
- -1 polyethylene Polymers 0.000 claims description 53
- 229920000573 polyethylene Polymers 0.000 claims description 53
- 239000007789 gas Substances 0.000 claims description 44
- 239000002994 raw material Substances 0.000 claims description 29
- 239000012071 phase Substances 0.000 claims description 28
- 239000007791 liquid phase Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 150000001336 alkenes Chemical class 0.000 abstract 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 8
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000004711 α-olefin Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000002101 nanobubble Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920006126 semicrystalline polymer Polymers 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
- B01J10/002—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out in foam, aerosol or bubbles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/14—Production of inert gas mixtures; Use of inert gases in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/02—Ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/02—Ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Dispersion Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867780.2A CN112500509B (zh) | 2019-09-14 | 2019-09-14 | 一种强化乙烯聚合的系统和工艺 |
| PCT/CN2019/120188 WO2021047049A1 (fr) | 2019-09-14 | 2019-11-22 | Système et procédé permettant de renforcer la polymérisation de l'éthylène |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867780.2A CN112500509B (zh) | 2019-09-14 | 2019-09-14 | 一种强化乙烯聚合的系统和工艺 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112500509A CN112500509A (zh) | 2021-03-16 |
| CN112500509B true CN112500509B (zh) | 2023-03-10 |
Family
ID=74865615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910867780.2A Active CN112500509B (zh) | 2019-09-14 | 2019-09-14 | 一种强化乙烯聚合的系统和工艺 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112500509B (fr) |
| WO (1) | WO2021047049A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115636886B (zh) * | 2022-10-11 | 2024-01-23 | 清华大学 | 微反应器系统及利用其制备聚合物的方法和eva的应用 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754987A (zh) * | 2007-06-27 | 2010-06-23 | Hrd有限公司 | 生产聚乙烯和聚丙烯的系统和方法 |
| CN106146713A (zh) * | 2015-03-27 | 2016-11-23 | 中国石油天然气股份有限公司 | 一种釜式淤浆生产聚乙烯的方法、应用及所生产的聚乙烯 |
| CN107759717A (zh) * | 2016-08-19 | 2018-03-06 | 中国石油天然气股份有限公司 | 在气相流化床反应器快速建立乙烯聚合/共聚合反应的方法 |
| CN109776702A (zh) * | 2017-11-10 | 2019-05-21 | 北京华福工程有限公司 | 聚丙烯或丙烯乙烯共聚物的制备方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1002244A (en) * | 1971-10-15 | 1976-12-21 | E.I. Du Pont De Nemours And Company | ETHYLENE/.alpha.-OLEFIN COPOLYMERIZATION PROCESS |
| JPS587402A (ja) * | 1981-07-07 | 1983-01-17 | Mitsui Petrochem Ind Ltd | 重合方法 |
| AU2001274610A1 (en) * | 2000-06-23 | 2002-01-02 | Ryosaku Fujisato | Fine air bubble generator and fine air bubble generating device with the generator |
| JP2002145910A (ja) * | 2000-12-28 | 2002-05-22 | Mitsui Chemicals Inc | 重合方法および重合設備 |
| CN102688709A (zh) * | 2006-10-17 | 2012-09-26 | 金强 | 高速旋回式气液混合型微纳米泡沫发生装置 |
| US8067512B2 (en) * | 2008-04-10 | 2011-11-29 | Exxonmobil Research And Engineering Company | Monomer/solvent separation and recycle process for propylene containing polymers |
| CN105524204B (zh) * | 2014-09-28 | 2018-11-30 | 中国石油化工股份有限公司 | 乙烯-乙酸乙烯酯溶液共聚反应方法及反应装置 |
| CN106215730A (zh) * | 2016-08-05 | 2016-12-14 | 南京大学 | 微米气泡发生器 |
| CN106268544B (zh) * | 2016-08-05 | 2020-03-24 | 南京大学 | 塔式超细气泡反应器 |
| CN107335390B (zh) * | 2017-08-30 | 2020-02-11 | 南京大学 | 微界面强化反应器相界面积构效调控模型建模方法 |
| CN208066329U (zh) * | 2018-03-05 | 2018-11-09 | 山东豪迈化工技术有限公司 | 一种微泡式气液反应器及系统 |
-
2019
- 2019-09-14 CN CN201910867780.2A patent/CN112500509B/zh active Active
- 2019-11-22 WO PCT/CN2019/120188 patent/WO2021047049A1/fr active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754987A (zh) * | 2007-06-27 | 2010-06-23 | Hrd有限公司 | 生产聚乙烯和聚丙烯的系统和方法 |
| CN106146713A (zh) * | 2015-03-27 | 2016-11-23 | 中国石油天然气股份有限公司 | 一种釜式淤浆生产聚乙烯的方法、应用及所生产的聚乙烯 |
| CN107759717A (zh) * | 2016-08-19 | 2018-03-06 | 中国石油天然气股份有限公司 | 在气相流化床反应器快速建立乙烯聚合/共聚合反应的方法 |
| CN109776702A (zh) * | 2017-11-10 | 2019-05-21 | 北京华福工程有限公司 | 聚丙烯或丙烯乙烯共聚物的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112500509A (zh) | 2021-03-16 |
| WO2021047049A1 (fr) | 2021-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8022153B2 (en) | System and process for production of polyethylene and polypropylene | |
| JP5074770B2 (ja) | ビモダルなオレフィン製造での触媒の展開 | |
| EP2723781B1 (fr) | Procédé et appareil pour décharger un polymère d'un réacteur en phase gazeuse | |
| TW200808836A (en) | An apparatus for the production of polyethylene and ethylene copolymers | |
| CN112500509B (zh) | 一种强化乙烯聚合的系统和工艺 | |
| CN112495310B (zh) | 一种强化丙烯聚合的系统和工艺 | |
| EP1988992B1 (fr) | Conduite de transfert entre deux réacteurs à boucle | |
| CN213506692U (zh) | 一种强化乙烯聚合的系统 | |
| CN112500512B (zh) | 一种基于本体法制备聚乙烯的强化系统及工艺 | |
| CN115253954B (zh) | 一种连续反应装置及应用 | |
| CN212128041U (zh) | 基于溶液法制备聚乙烯的智能强化系统 | |
| CN212119946U (zh) | 一种基于本体法制备聚乙烯的强化系统 | |
| CN213506694U (zh) | 一种基于本体法制备聚乙烯的智能强化系统 | |
| CN112500508A (zh) | 一种基于本体法制备聚乙烯的智能强化系统及工艺 | |
| CN112500506A (zh) | 基于溶液法制备聚乙烯的智能强化系统及工艺 | |
| US20220017653A1 (en) | Solution polymerization process | |
| US20220049027A1 (en) | Solution polymerization process | |
| CN112500510A (zh) | 基于溶液法制备聚乙烯的强化系统及工艺 | |
| CN108623719A (zh) | 一种气升式烯烃聚合装置和聚合方法 | |
| WO2018127472A1 (fr) | Procédé de polymérisation en suspension à plusieurs réacteurs | |
| RU2440842C2 (ru) | Циркуляционный реактор для полимеризации | |
| CN112479798A (zh) | 一种基于微界面强化碳四加氢的系统及工艺 |
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 |