CN107866135A - One kind trapping CO2Device and method - Google Patents

One kind trapping CO2Device and method Download PDF

Info

Publication number
CN107866135A
CN107866135A CN201610855782.6A CN201610855782A CN107866135A CN 107866135 A CN107866135 A CN 107866135A CN 201610855782 A CN201610855782 A CN 201610855782A CN 107866135 A CN107866135 A CN 107866135A
Authority
CN
China
Prior art keywords
stove
capillary
absorption
compressor
pipe dish
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
Application number
CN201610855782.6A
Other languages
Chinese (zh)
Other versions
CN107866135B (en
Inventor
于杨
陈海波
魏士新
殷玉圣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Research Institute of Sinopec Nanjing Chemical Industry Co Ltd
Original Assignee
China Petroleum and Chemical Corp
Research Institute of Nanjing Chemical Industry Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Research Institute of Nanjing Chemical Industry Group Co Ltd filed Critical China Petroleum and Chemical Corp
Priority to CN201610855782.6A priority Critical patent/CN107866135B/en
Publication of CN107866135A publication Critical patent/CN107866135A/en
Application granted granted Critical
Publication of CN107866135B publication Critical patent/CN107866135B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B01D53/14—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 by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • 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
    • B01D53/14—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 by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1475—Removing carbon dioxide
    • 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
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Treating Waste Gases (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

The invention belongs to CCUS technical fields, and in particular to a kind of CO2Capturing device and method.Fixed bed including a feed gas compressor, two built-in capillaries absorbs stove, absorbs the pipelines such as stove inlet valve, pressure gauge, counterbalance valve, circulation of tail gas and emptying.Contain CO2Unstripped gas liquid is condensed into the capillary of fixed bed is under compression trapped and separated, pass through the CO that application of vacuum traps2It can be released, the CO of trapping2Quality is big, purity is high, is a kind of efficient CO2Trapping technique, there is potential prospects for commercial application.

Description

One kind trapping CO2Device and method
Technical field
The invention belongs to CCUS technical fields, and in particular to one kind trapping CO2Device and capture method.
Background technology
CO2It is greenhouse gases main on the earth, concentration is in increased trend year by year in an atmosphere, causes a system Row environment and ecocrisis.CO2Trapping, using and seal up for safekeeping（CCUS）Become international important topic, wherein, CO2Catch Collection is important precursor conditions.
In existing literature and patented technology, for CO2Absorption mainly have two kinds, one kind is that solution absorbs, and another kind is Solid sorbent.The former has good commercial Application, but the use of solvent is faced with environmental issue.The latter is the heat of current research Point.Most solid absorbent is all the alkalescence using the surface of solids to CO at present2Adsorbed or and CO2Send out at high temperature Raw reversible reaction, then carry under certain condition and discharge CO2.Influence of the process of this solid sorbent to absorbent some be Irreversible, it is universal not high to recycle ability, at the same there is also absorbability it is limited the problem of.
The content of the invention
The mesh of the present invention is by designing efficient CO2Capturing device, and optimize each technological process parameter, can efficiently it catch Collection and separation CO2。
The present invention be mainly characterized by utilize CO2Gas can be condensed under the conditions of certain external pressure inside capillary Liquid CO2Mechanism, reach under conditions of without using other liquid or solid absorption reagents it is continuous, it is efficient trapping separation CO2。
The CO of the inventive method design2Capturing device, including source CO2Gas compressor, behind connect two suctions in parallel Stove is received, has switch valve between compressor and each absorption stove；Absorbing stove has the fixed bed of built-in capillary, capillary upper and lower opening point It is not fixed in upper end circle cloth pipe dish and lower end circle cloth pipe dish, in upper and lower end circle cloth pipe dish in addition to having capillary exit, also Whether there is resistance hole；Each stokehold that absorbs is furnished with pressure gauge, absorbs and a pressure gauge is connected behind stove；After absorbing the pressure gauge after stove There is counterbalance valve in face, and the gas part come out from counterbalance valve is recycled back to before compressor and source CO2Gas mixing enters compressor, Another part is vented by switch valve.
Usually, described capillary material is one kind in glass, copper and copper alloy.
The capillary external diameter is 0.5 ~ 4mm, and internal diameter is 0.3 ~ 3mm.
Described capillary pipe length is 2 ~ 20cm.
Described circular cloth pipe dish diameter is equal with absorbing stove cross-sectional dimension.
Described non-resistance hole is 5, and 1 circle centre position for being located at circular cloth pipe dish, 4 with the circular cloth pipe dish center of circle in addition It is distributed for symmetrical centre in right-angled intersection Central Symmetry, non-resistance bore dia is the 1/10 ~ 1/5 of circular cloth pipe dish diameter.
The device designed using the present invention carries out CO2The main method of trapping is as follows：First open an absorption stove inlet valve Door, another absorbs stove inlet valve for closed mode, source CO2Gas enters one of inhale after compressor pressurizes Stove is received, is contacted first with circular cloth pipe dish in this absorption stove, a part of gas enters inside capillary and coagulated for liquid, separately A part passes through circular non-resistance hole；Pass through the empty CO of non-resistance2, a part is recycled to before compressor and source CO2Passed through after mixing Compressor compresses are again introduced into absorption stove, another part emptying；As the capillary condensation CO in an absorption stove2Reach saturation Afterwards, this valve for absorbing stove entrance is closed, opens another absorption stove inlet valve, and the fixed bed for absorbing saturation is taken out It is placed in the device of vacuum-pumping, carries out vacuumize process, make CO2Gas gasifies again departs from capillary, then will discharge CO2Fixed bed put back to absorb stove in.
Described absorption furnace pressure is 2 ~ 8MPa.
Described vacuumize process, vacuum is between 100 ~ 150 Pa；Temperature is 50 ~ 100 DEG C；Processing time is 5 ~ 10h.
Using the CO of the present invention2Capturing device and method, it continuously, efficiently can trap and separate CO2Gas, obtain CO2Purity is high, is produced without the three wastes.
Brief description of the drawings
Fig. 1 is embodiment CO2The schematic diagram of capturing device system.
Fig. 2 is fixed bed schematic diagram in embodiment.
Fig. 3 is circular cloth pipe dish enlarged diagram in embodiment.
Wherein, 1- compressors；2- switch valves；3- absorbs stove；4- fixed beds；5- supports；6- upper ends circle cloth pipe dish；6’- Lower end circle cloth pipe dish；7- counterbalance valves；8- absorbs stokehold pressure gauge；8 '-absorb pressure gauge after stove；9- capillary exits；10- is without hindrance Power hole.
Embodiment
Patented technology of the present invention is described in detail below by way of accompanying drawing, embodiment.
CO in embodiment2Capturing device is referring to accompanying drawing 1, including source CO2Gas compressor 1, behind connect two parallel connections Absorption stove 3, compressor 1 and each absorb between stove 3 have switch valve 2；Absorbing stove 3 has the fixed bed 4 of built-in capillary, capillary Pipe upper and lower opening is separately fixed in upper end circle cloth pipe dish 6 and lower end circle cloth pipe dish 6 ', and being removed in upper and lower end circle cloth pipe dish has Outside capillary exit 9, also non-resistance hole 10；It is furnished with pressure gauge before each absorption stove 3（Absorb stokehold pressure gauge 8）, after absorbing stove 3 Face connects a pressure gauge（Pressure gauge 8 ' after absorption stove）；Absorbing behind the pressure gauge after stove 3 has counterbalance valve 7, goes out from counterbalance valve 7 The gas part come is recycled back to before compressor and source CO2Gas mixing enters compressor 1, and another part passes through switch valve 2 Emptying.
In embodiment, capillary material is one kind in glass, copper and copper alloy.
Embodiment 1
As shown in Figure 1（Symbol implication is shown in brief description of the drawings）, process system parameter is that it is 25mm to absorb stove cross-sectional dimension, fixed The circular a diameter of 25mm of cloth pipe dish on bed, capillary glass tube external diameter is 0.5mm, internal diameter 0.3mm, a length of 2cm, and non-resistance hole is straight Footpath is 2.5mm, and in addition to the non-resistance hole of a center, four additional is in right-angled intersection by symmetrical centre of the circular cloth pipe dish center of circle The heart is symmetrical, and four holes center of circle and centre bore circle center distance are 6.25mm.
Acceptance condition is source CO2The CO that volumetric concentration composition is 65%2, 15% NOx, 10% CH4, 10% SO2, often Press mixed gas；Source CO2Gas flow rate is 600L/h；It is 25 DEG C to absorb furnace temperature.
Absorption process is that first absorption stove inlet valve is opened, and closes second absorption stove inlet valve, source CO2 Gas enters first absorption stove after compressor compresses, and absorption stokehold pressure is 2.2MPa, and pressure is 2MPa after absorbing stove, It is vented by controlling, maintains circulating air and source CO2It is 600L/h to enter the flow velocity absorbed in stove after gas mixing.Absorb 2.5h After reach saturation, open second absorption stove inlet valve, first absorption stove inlet valve simultaneously closed off, by first absorption stove Interior fixed bed is taken out to be put into vacuum drying chamber and handled, and regulation vacuum drying chamber vacuum is 100pa, temperature is 100 DEG C, After handling 2h, the CO that discharges2Reclaimed, volume fixed bed reinstalls the first absorption stove after processing, is ready for absorbing next time The switching of stove.Result of the test shows, it is each absorb stove adsorption saturation after, the CO that is condensed in capillary2Gas gross mass is 9.5g, Purity is 99.999%.
Embodiment 2
As shown in Figure 1（Symbol implication is shown in brief description of the drawings）, process system parameter is that it is 50mm to absorb stove cross-sectional dimension, fixed The circular a diameter of 50mm of cloth pipe dish on bed, capillary glass tube external diameter is 2mm, internal diameter 1.5mm, a length of 10cm, and non-resistance hole is straight Footpath is 6.25mm, and in addition to the non-resistance hole of a center, four additional is in right-angled intersection by symmetrical centre of the circular cloth pipe dish center of circle Central Symmetry is distributed, and four holes center of circle and centre bore circle center distance are 12.5mm.
Acceptance condition is source CO2The CO that volumetric concentration composition is 65%2, 15% NOx, 10% CH4, 10% SO2, often Press mixed gas；It is 25 DEG C to absorb furnace temperature.
Absorption process is that first absorption stove inlet valve is opened, and closes second absorption stove inlet valve, source CO2 Gas enters first absorption stove after compressor compresses, and absorption stokehold pressure is 5.2MPa, and pressure is 5MPa after absorbing stove, It is vented by controlling, maintains circulating air and source CO2It is 600L/h to enter the flow velocity absorbed in stove after gas mixing.After absorbing 3h Reach saturation, open second absorption stove inlet valve, first absorption stove inlet valve is simultaneously closed off, by first absorption stove Fixed bed take out and be put into vacuum drying chamber and handle, regulation vacuum drying chamber vacuum is 120pa, temperature is 80 DEG C, place After managing 2.5h, the CO that discharges2Reclaimed, volume fixed bed reinstalls the first absorption stove after processing, is ready for absorbing next time The switching of stove.Result of the test shows, it is each absorb stove adsorption saturation after, the CO that is condensed in capillary2Gas gross mass is 195.2g, purity 99.999%.
Embodiment 3
As shown in Figure 1（Symbol implication is shown in brief description of the drawings）, process system parameter is that it is 100mm to absorb stove cross-sectional dimension, fixed The circular a diameter of 100mm of cloth pipe dish on bed, capillary glass tube external diameter is 4mm, internal diameter 3mm, a length of 20cm, non-resistance bore dia For 10mm, in addition to the non-resistance hole of a center, four additional is in right-angled intersection center by symmetrical centre of the circular cloth pipe dish center of circle Symmetrical, four holes center of circle and centre bore circle center distance are 25mm.
Acceptance condition is source CO2The CO that volumetric concentration composition is 65%2, 15% NOx, 10% CH4, 10% SO2, often Press mixed gas；It is 30 DEG C to absorb furnace temperature.
Absorption process is that first absorption stove inlet valve is opened, and closes second absorption stove inlet valve, source CO2 Gas enters first absorption stove after compressor compresses, and absorption stokehold pressure is 8.2MPa, and pressure is 8MPa after absorbing stove, It is vented by controlling, maintains circulating air and source CO2It is 600L/h to enter the flow velocity absorbed in stove after gas mixing.Absorb 4.5h After reach saturation, open second absorption stove inlet valve, first absorption stove inlet valve simultaneously closed off, by first absorption stove Interior fixed bed is taken out to be put into vacuum drying chamber and handled, and regulation vacuum drying chamber vacuum is 133pa, temperature is 30 DEG C, After handling 4h, the CO that discharges2Reclaimed, volume fixed bed reinstalls the first absorption stove after processing, is ready for absorbing next time The switching of stove.Result of the test shows, it is each absorb stove adsorption saturation after, the CO that is condensed in capillary2Gas gross mass is 1630.7g purity 99.999%.

Claims (9)

1. one kind trapping CO2Device, it is characterised in that including source CO2Gas compressor, behind connect two suctions in parallel Stove is received, has switch valve between compressor and each absorption stove；Absorbing stove has the fixed bed of built-in capillary, capillary upper and lower opening point It is not fixed in upper end circle cloth pipe dish and lower end circle cloth pipe dish, in upper and lower end cloth pipe dish in addition to having capillary exit, also whether there is Resistance hole；Each stokehold that absorbs is furnished with pressure gauge, absorbs and a pressure gauge is connected behind stove；Absorb has behind the pressure gauge after stove Counterbalance valve, the gas part come out from counterbalance valve are recycled back to before compressor and source CO2Gas mixing enters compressor, another Part is vented by switch valve.
2. device according to claim 1, it is characterised in that described capillary material is in glass, copper and copper alloy One kind.
3. device according to claim 1 or 2, it is characterised in that the capillary external diameter is 0.5 ~ 4mm, internal diameter 0.3 ~3mm。
4. device according to claim 1 or 2, it is characterised in that described capillary pipe length is 2 ~ 20cm.
5. device according to claim 1, it is characterised in that described circular cloth pipe dish diameter is with absorbing stove cross-sectional dimension It is equal.
6. device according to claim 1, it is characterised in that described non-resistance hole is 5, and 1 is located at circular stringing The circle centre position of disk, 4 are distributed using the circular cloth pipe dish center of circle as symmetrical centre in right-angled intersection Central Symmetry in addition, and non-resistance hole is straight Footpath is the 1/10 ~ 1/5 of circular cloth pipe dish diameter.
7. a kind of device using in claim 1 carries out CO2The method of trapping, it is characterised in that first open an absorption stove and enter Mouth valve, another absorbs stove inlet valve for closed mode, source CO2Gas enters wherein one after compressor pressurizes Individual absorption stove, contacted first with circular cloth pipe dish in this absorption stove, a part of gas enters inside capillary and coagulated for liquid Body, another part pass through circular non-resistance hole；Pass through the CO in non-resistance hole2, a part is recycled to before compressor and source CO2It is mixed After conjunction absorption stove, another part emptying are again introduced into through compressor compresses；As the capillary condensation CO in an absorption stove2Reach After saturation, this valve for absorbing stove entrance is closed, opens another absorption stove inlet valve, and the fixed bed that saturation will be absorbed Taking-up is placed in the device of vacuum-pumping, is carried out vacuumize process, is made CO2Gas gasifies again departs from capillary, then will release Release CO2Fixed bed put back to absorb stove in.
8. according to the method for claim 7, it is characterised in that described absorption furnace pressure is 2 ~ 8MPa.
9. according to the method for claim 7, it is characterised in that described vacuumize process, vacuum is between 100 ~ 150 Pa；Temperature is 50 ~ 100 DEG C；Processing time is 5 ~ 10h.
CN201610855782.6A 2016-09-28 2016-09-28 CO capture2Apparatus and method of Active CN107866135B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610855782.6A CN107866135B (en) 2016-09-28 2016-09-28 CO capture2Apparatus and method of

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610855782.6A CN107866135B (en) 2016-09-28 2016-09-28 CO capture2Apparatus and method of

Publications (2)

Publication Number Publication Date
CN107866135A true CN107866135A (en) 2018-04-03
CN107866135B CN107866135B (en) 2021-06-01

Family

ID=61752316

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610855782.6A Active CN107866135B (en) 2016-09-28 2016-09-28 CO capture2Apparatus and method of

Country Status (1)

Country Link
CN (1) CN107866135B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113680173A (en) * 2021-08-23 2021-11-23 无锡碳谷科技有限公司 Device and method for directly capturing carbon dioxide by air

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926492A1 (en) * 1997-12-02 1999-06-30 Uop Llc Round profile multi-capillary assembly useful in chromatography
CN1329516A (en) * 1998-11-03 2002-01-02 不来梅大学 Method for separating condensable substances from gases or gas mixtures
CN1610576A (en) * 2001-12-28 2005-04-27 系统工程服务股份有限公司 Method for treating exhaust gas containing volatile hydrocarbon, and apparatus for practicing said method
CN101143288A (en) * 2006-07-17 2008-03-19 通用电气公司 Carbon dioxide capture systems and methods
CN101222969A (en) * 2005-06-27 2008-07-16 系统工程服务有限公司 Method of purifying large quantity of exhaust gas containing dilute volatile hydrocarbon
CN103055655A (en) * 2013-01-25 2013-04-24 浙江曙扬化工有限公司 Cyclohexane oxidation tail gas treatment device and treatment method
US20130277868A1 (en) * 2012-04-18 2013-10-24 IFP Energies Nouvelles Partitioned distributor tray for offshore gas/liquid contact column
CN104399353A (en) * 2014-12-13 2015-03-11 太原理工大学 Methane-carbon dioxide-nitrogen gas or hydrogen gas multi-component separation method and device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926492A1 (en) * 1997-12-02 1999-06-30 Uop Llc Round profile multi-capillary assembly useful in chromatography
CN1329516A (en) * 1998-11-03 2002-01-02 不来梅大学 Method for separating condensable substances from gases or gas mixtures
CN1610576A (en) * 2001-12-28 2005-04-27 系统工程服务股份有限公司 Method for treating exhaust gas containing volatile hydrocarbon, and apparatus for practicing said method
CN101222969A (en) * 2005-06-27 2008-07-16 系统工程服务有限公司 Method of purifying large quantity of exhaust gas containing dilute volatile hydrocarbon
CN101143288A (en) * 2006-07-17 2008-03-19 通用电气公司 Carbon dioxide capture systems and methods
US20130277868A1 (en) * 2012-04-18 2013-10-24 IFP Energies Nouvelles Partitioned distributor tray for offshore gas/liquid contact column
CN103055655A (en) * 2013-01-25 2013-04-24 浙江曙扬化工有限公司 Cyclohexane oxidation tail gas treatment device and treatment method
CN104399353A (en) * 2014-12-13 2015-03-11 太原理工大学 Methane-carbon dioxide-nitrogen gas or hydrogen gas multi-component separation method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113680173A (en) * 2021-08-23 2021-11-23 无锡碳谷科技有限公司 Device and method for directly capturing carbon dioxide by air
CN113680173B (en) * 2021-08-23 2023-01-13 无锡碳谷科技有限公司 Device and method for directly capturing carbon dioxide by air

Also Published As

Publication number Publication date
CN107866135B (en) 2021-06-01

Similar Documents

Publication Publication Date Title
CN107064361B (en) Detection apparatus and detection method
CN104181260B (en) A kind of integrated minitype gathering device system and manufacture method thereof
US8833140B2 (en) Optically heated analyte desorber for gas chromatography analysis
JP2019120702A (en) Sample collection absorber, heat desorption cavity device, sample collection device, and analyzer
CN102770759A (en) Helium reclamation systems and methods for a gas chromatograph
CN215233159U (en) Carbon dioxide capture and analysis device
CN104014223B (en) Methane adsorber for ventilation air methane
CN107866135A (en) One kind trapping CO2Device and method
CN109308990A (en) Sampling system for ionic migration spectrum detector
CN103515182A (en) Method for alternative use and regeneration of dry pipes of ion mobility spectrometry
CN205582520U (en) Exhaust treatment device of nuclear power plant
CN201799135U (en) Split nano-fiber solid phase extraction column
KR102694087B1 (en) Method of producing guest-free silicon clathrate, apparatus for producing guest-free silicon clathrate
TWI275786B (en) Collection method for analytic exhaust gas containing gaseous component with high adsroptivity
CN113866281A (en) Device and method for testing adsorption and desorption characteristics of full-pressure material in cross-temperature region
CN209138270U (en) A kind of house exhaust processing system
CN207623292U (en) A kind of Thermal desorption module of equilibrium air pressure
CN111551402B (en) Free state gas radon collecting device of infusion tube
CN221326437U (en) Gas chromatograph
CN204831865U (en) Entrapment device of gaseous phase thing among mainstream smoke
CN209147752U (en) A kind of collection filter device for tail gas end in high temperature process furnances
CN108982279A (en) A kind of coke breeze trace organic substance absorption property evaluation method and system based on air flow bed
CN107648939A (en) The waste gas recovering device of cumyl peroxide
CN108982280A (en) A kind of coke breeze demercuration method of evaluating performance and system based on air flow bed
CN213421797U (en) Muffle furnace

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
CB02 Change of applicant information
CB02 Change of applicant information

Address after: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699

Applicant after: China Petroleum & Chemical Corp.

Applicant after: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd.

Address before: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699

Applicant before: China Petroleum & Chemical Corp.

Applicant before: Nanhua Group Research Institute

GR01 Patent grant
GR01 Patent grant