CN106693436A - Tail gas treatment system for storage tank type material storage facilities - Google Patents
Tail gas treatment system for storage tank type material storage facilities Download PDFInfo
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- CN106693436A CN106693436A CN201510780573.5A CN201510780573A CN106693436A CN 106693436 A CN106693436 A CN 106693436A CN 201510780573 A CN201510780573 A CN 201510780573A CN 106693436 A CN106693436 A CN 106693436A
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- gas
- tank
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- 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
-
- 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
- B01D53/002—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 condensation
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- 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)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a tail gas treatment system for storage tank type material storage facilities. Seal gas pressure of a storage tank in a material storage facility (A) is between 0.06MPa and 0.26MPa; a tail gas treatment facility (B) comprises a suction tank (11), a compressor (12), a cooling fractional condenser (13) and a gas storage tank (31) which are sequentially connected in series; the inlet of the suction tank is communicated with a gas outlet of the storage tank; the gas outlet of the gas storage tank is communicated with a suction port of the storage tank; and liquid outlets of the gas storage tank and the suction tank are communicated with the liquid inlet of the storage tank. According to the technical scheme, the liquid and gases produced by treatment of the tail gas of the storage tank can be totally returned to the material storage facility by the tail gas treatment facility, so that losses of materials are avoided, and the environmental pollution is avoided.
Description
Technical field
The present invention relates to the exhaust treatment system of petroleum chemical industry storing material facility, in particular it relates to
It is a kind of to realize the exhaust treatment system that tail gas is recycled completely.
Background technology
In petroleum chemical industry, for storing the existing storing material facility of chemicals (for example, pressure is store
Tank and pressure reservoir), during storing material, can produce Big and Small Breath phenomenon.
Small breathing, refers to pressure reservoir or pressure reservoir, absorbs solar radiant heat daytime, and night and day
Heat exchange is carried out with air.When heat absorption is more than heat release, gas and fluid temperature are raised in groove tank, volume
Expansion, pressure rise are, it is necessary to exhaled gas are maintaining groove pressure inside the tank in allowed band.When heat release is big
When heat absorption, gas and fluid temperature reduction in groove tank, volume contraction, pressure reduction are, it is necessary to supplement outer
Carry out gas, to maintain groove pressure inside the tank in allowed band.
Big breathing, refers exclusively to the phenomenon that pressure reservoir or pressure reservoir charging and discharging process occur.During charging,
Liquid phase capacity increase in groove tank, gas phase compressed, and pressure rise is, it is necessary to exhaled gas are maintaining in groove tank
Pressure is in allowed band；During discharging, liquid phase capacity reduces in groove tank, gas phase self-expansion, pressure drop
It is low, it is necessary to supplement foreign gas, to maintain groove pressure inside the tank in allowed band.
Big and Small Breath in above-mentioned groove tank is often gone hand in hand, while mass transfer can occur between gas-liquid two-phase interface
Process (transport phenomenon), makes sealing gas contain the component of a small amount of storage material；Storing material temperature is got over
Height, material component is more in sealing gas, and vice versa.
The result that Big and Small Breath is acted on simultaneously, causes groove pressure inside the tank to be raised and lowered.When groove pressure inside the tank
During higher than setting value, pressure relief device (such as breather valve, exhaust regulating valve) that can be from the top of groove tank is discharged
Gas, to maintain groove pressure inside the tank in allowed band, prevents groove tank from being burst because of superpressure；When size is exhaled
The result of effect simultaneously is inhaled, when causing groove pressure inside the tank to be less than setting value, need to be filled by the ftercompction at the top of groove tank
(such as breather valve, tonifying Qi regulating valve) supplement foreign gas are put, to maintain groove pressure inside the tank allowing model
In enclosing, prevent groove tank from causing deformation because of vacuum.
Since industrialization, following several method has traditionally been taken to carry out the tail gas of storing material facilities exhaust
Treatment：
(1) tail gas cooling and/or sub-cooled technology：In heat exchanger, tail gas is cooled down by cryogen, its
Produced biphase gas and liquid flow, is separated into gas and liquid, and liquid is flowed directly into or returns material with pump and stores
Deposit facility；After gas is directly discharged into air or is pressurizeed through compressor, torch or incinerator are sent to by pipeline
Burn.
(2) tail gas compression-cooling technology：Tail gas boosts through compressor, and pressed gas are in heat exchanger
Cooled down by cryogen, the biphase gas and liquid flow produced by it, by gas-liquid separator, be separated into gas and liquid,
Liquid blowback storing material facility, gas is directly discharged into air or sends to torch by pipeline or incinerator burns
Burn.
(3) tail gas compression-cooling-absorption techniques：Tail gas is boosted through compressor, and pressed gas are being changed
In hot device, cooled down by cryogen, the biphase gas and liquid flow produced by it, by gas-liquid separator, is separated into gas
Body and liquid.Liquid pump returns storing material facility.Gas enters absorption tower bottom, inflammable in tail gas
Flammable, poisonous and harmful substance, the absorbent that major part is added by tower top is drawn, and bottom of towe absorbing liquid is sent to
Process units treatment or separately stripping (desorption) treatment；Overhead gas, are directly discharged into air or by pipe
Torch is sent in road or incinerator is burned.
(4) tail gas compression-cooling-deep cooling-adsorption technology：Tail gas boosts through compressor, pressure gas
Body is cooled in several heat exchangers of series connection by cryogen.Gas-liquid two-phase produced by each heat exchanger
Stream, then through gas-liquid separation into liquid and cryogenic gas.Blowback storing material facility after liquid collection.Through depth
The cold cryogenic gas produced, temperature is about subzero 70 degree, and this cryogenic gas enters activated carbon adsorber.
In adsorption tower, the poisonous and harmful substance in cryogenic gas is tightly held by activated carbon.The gas that adsorption treatment is crossed,
When poisonous and harmful substance concentration is less than the concentration for allowing discharge standard, can be directly discharged into air.This tail gas
Treatment technology, is combined using " activated carbon adsorber-desorber " more, an absorption, another vacuum
Desorption is desorbed, and is periodically alternately operated by automatic control-chain instrument.To prevent adsorption process heat release
/ overtemperature sets off an explosion, it is often necessary to be passed through a large amount of fresh nitrogens to adsorption tower.In addition, the method and equipment
Bag, because technological process is long, pump and the chain instrument of control are more, and operation troubles, or activity easily occur
Do not changed in time during charcoal saturation, the tail gas containing poisonous and harmful substances, all needs to send torch to burn under these operating modes
Burn, such as enter air, pollute surrounding air.
The system of above-mentioned treatment tail gas, has a common trait, using open technological process.Material
The tail gas that storage facilities and shipping facilities are discharged in charging process is through the obtained liquids and gases for the treatment of, liquid
Body returns to storing material facility, and gas is directly discharged into air or delivers to torch burning.This treatment tail
The shortcoming of the method for gas is loss storage material, consumes fresh nitrogen, enters the tail gas pollution air of air；
Tail gas after treatment, goes torch to burn if flowing through pipeline, not only needs to consume fuel, and, tail gas burns
The flue gas discharged after burning contains NOx、SOx、CO2Etc. harmful substance, secondary pollution can be produced to air.
The content of the invention
It is an object of the invention to provide a kind of exhaust treatment system of storing material facility, the vent gas treatment system
System can realize that the tail gas discharged to storing material facility carries out harmless treatment, and vent gas treatment is produced
Gas and liquid, recycle completely.
To achieve these goals, the present invention provides a kind of vent gas treatment system of basin class storing material facility
System, the exhaust treatment system includes storing material facility and vent gas treatment facility, the storing material facility
The seal gas pressure of interior basin is between 0.06MPaG to 0.26MPaG, the vent gas treatment
Facility includes the air-breathing tank, compressor, cooling segregator and the gas tank that are sequentially connected in series, the air-breathing tank
Entrance is communicated to the exhalation vents of the basin, and the gas vent of the gas tank is communicated to the suction of the basin
The liquid outlet of gas port, the gas tank and air-breathing tank is communicated to the liquid inlet of the basin, so that institute
The tail gas for stating basin exhalation is separated into gas and liquid by the vent gas treatment facility, and all returns to institute
State in basin.
By above-mentioned technical proposal, because the liquid outlet and gas vent of vent gas treatment facility are communicated to
The inlet and outlet of storing material facility so that exhaust treatment system of the invention turns into closed circulation system,
So as to the tail gas for being discharged material storing facility, all returned through the liquids and gases produced by treatment
Return in the basin of storing material facility, it is to avoid material loss, and environment will not be polluted.
It is a further object of the present invention to provide a kind of exhaust treatment system of storing material facility, at the tail gas
Reason system can simultaneously realize that the tail gas discharged to storing material facility and material shipping facilities carries out nothing
Evilization treatment, gas and liquid that vent gas treatment is produced are recycled completely.
To achieve these goals, the present invention provides a kind of vent gas treatment system of basin class storing material facility
System, the exhaust treatment system includes storing material facility, vent gas treatment facility and material shipping facilities, institute
The seal gas pressure for stating the basin in storing material facility is between 0.06MPaG to 0.26MPaG,
The exhalation vents of the basin are connected with the exhalation vents of the material shipping facilities, the vent gas treatment facility bag
Air-breathing tank, compressor, cooling segregator and the gas tank being sequentially connected in series are included, the entrance of the air-breathing tank is used
In the exhalation vents for being communicated to the basin, the gas vent of the gas tank is communicated to the air-breathing of the basin
Mouthful, the liquid outlet of the gas tank and air-breathing tank is communicated to the liquid inlet of the basin, so that described
Storing material facility and the tail gas of material shipping facilities exhalation are separated into gas by the vent gas treatment facility
Body and liquid, and all return in the basin.
By above-mentioned technical proposal, because the liquid outlet and gas vent of vent gas treatment facility are communicated to
The inlet and outlet of storing material facility so that exhaust treatment system of the invention turns into closed circulation system,
So as to the tail gas for being discharged storing material facility and material shipping facilities, through processing produced by tail gas
Liquids and gases all return to storing material facilities, it is to avoid the loss of material, and environment will not be made
Into pollution.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of specification, with
Following specific embodiment is used to explain the present invention together, but is not construed as limiting the invention.
In accompanying drawing：
Fig. 1 is the vent gas treatment facility and storing material facility institute structure of a kind of implementation method of the invention
Into closed circulation system process flow diagram；
Fig. 2 be another embodiment of the invention vent gas treatment facility and storing material facility,
The process flow diagram of the closed circulation system that material shipping facilities are constituted.
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that
Specific embodiment described herein is merely to illustrate and explain the present invention, and is not intended to limit the invention.
As the first implementation method of the invention, as shown in figure 1, storing material facility A can include
One or more basin, the gas-liquid equilibrium pipe 7 that many tank tops are communicated with, vent gas treatment facility B
Including air-breathing tank 11, compressor 12, cooling segregator 13 and gas tank 31, the exhalation vents of basin are through pipe
Line 1 is communicated to the entrance of air-breathing tank 11, and the gas vent of air-breathing tank 11 is sequentially connected in series and is communicated to compressor
12 entrance, the outlet of compressor 12 cools down the entrance of segregator 13, cooling segregator 13
The entrance of outlet gas tank 31, the liquid outlet and air-breathing tank of gas tank 31 discharged and coagulated used by liquid
The outlet of liquid pump and lime set tank, connects with pipeline 2, pressured difference outflow in air storage pot bottom liquid collecting bag
Liquid flows through pipeline 2 and returns in material basin；The gas vent of gas tank 31 be sequentially communicated pipeline 4a and
Pipeline 1, under the control of regulating valve 4b, can be to basin make-up gas.So, vent gas treatment facility B
The gas and liquid produced, flow separately through the storage that pipeline 1 and pipeline 2 all return to storing material facility A
In tank.
As second implementation method of the invention, as shown in Fig. 2 exhaust treatment system can also be located simultaneously
The tail gas of reason material shipping facilities C (for example, train tanker vehicle and/or truck tank) discharge, with the first
Implementation method difference is to set a pipeline 3 to be connected with pipeline 1, by material shipping facilities C
The tail gas of discharge as storage tank make-up gas, unnecessary tail gas then enters air-breathing tank 11.Material shipment sets
Apply the tail gas that C discharges during material entrucking and flow through pipeline 3 and enter pipeline 1, mix in pipeline 1
Afterwards, into the air-breathing tank 11 of vent gas treatment facility.Thereafter, in vent gas treatment facility, using foregoing
Same process flow and same set of vent gas treatment facility, can be processed simultaneously or treatment comes from material basin respectively
The tail gas discharged with tank car, tail gas also all returns to material storage through processing produced gas and liquid
Tank.
By above-mentioned technical proposal, because the liquid outlet and gas vent of vent gas treatment facility are communicated to
Storing material facility so that exhaust treatment system of the invention turns into closed circulation system such that it is able to will
Liquids and gases produced by treatment tail gas all return to storing material facilities, it is to avoid the loss of material,
And environment will not be polluted.
In the present invention, gas tank 31 has two kinds of functions：A kind of function is gas-liquid separation, by tail gas
The biphase gas and liquid flow formed through " compression-cooling " is separated into gas and liquid, and liquid accumulates in air storage
In the liquid collecting bag of the bottom of tank 31, and pressured difference is adjusted by liquid level flow back in material basin；Another work(
Can be gas holder function, when gas of the tail gas through producing is less than the supplement sealing required for basin in storage facilities
During gas, by pipeline 4a, under the control of regulating valve 4b, can in time to needed for material basin supplement
The sealing gas wanted；When gas of the tail gas through producing is excessive, gas tank 31 can be automatic by unnecessary gas
Body is stored up.
During basin tail gas and/or tank car tail gas enter air-breathing tank 11 through pipeline 1, thing in tail gas
Material component can condense into drop to the cold, and these drops are eventually build up to the bottom of air-breathing tank 11.In order to
More fully recycle basin tail gas, it is preferable that the vent gas treatment facility can also include lime set tank
32 and lime set pump 33, the bottom of air-breathing tank 11 is provided with liquid outlet, and the liquid outlet is communicated to lime set
Tank 32, lime set pump 33 is used to send the liquid pump in lime set tank 32 in material basin back to.
In this implementation method, during process units runs, the tail gas of the basin exhalation in tank field, through tail gas
The compression for the treatment of facility/cooling fractional condensation/gas-liquid separation, is changed into gas and liquid, all returns to tank field storage
In tank.
Preferably, a tank field often is provided with many basins of the same material of storage, in order to reduce tail
Gas discharge capacity, sets a gas-liquid equilibrium pipe 7, and the exhalation vents and gas supplementing opening of many basins are put down with gas phase
Weighing apparatus pipe 7 is connected, and gas-liquid equilibrium pipe can promote sealing gas to be flowed between the gas phase of multiple material basins,
Greatly reduce the gas flow that storing material facility needs the exhaust flow of discharge and requires supplementation with.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited
Detail in above-mentioned implementation method, in range of the technology design of the invention, can be to the present invention
Technical scheme carry out various simple variants, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment,
In the case of reconcilable, can be combined by any suitable means.In order to avoid unnecessary
Repeat, the present invention is no longer separately illustrated to various possible combinations.
Additionally, can also be combined between a variety of implementation methods of the invention, as long as its
Without prejudice to thought of the invention, it should equally be considered as content disclosed in this invention.
Claims (6)
1. a kind of exhaust treatment system of basin class storing material facility, it is characterised in that the material
The seal gas pressure of the basin in storage facilities (A) is between 0.06MPaG to 0.26MPaG,
The vent gas treatment facility (B) includes the air-breathing tank (11), compressor (12), the cooling that are sequentially connected in series
Segregator (13) and gas tank (31), the entrance of the air-breathing tank (11) are communicated to the basin
Exhalation vents, the gas vent of the gas tank (31) is communicated to the air entry of the basin, the air storage
The liquid outlet of tank (31) and air-breathing tank (11) is communicated to the liquid inlet of the basin, so that described
The tail gas of basin exhalation is separated into gas and liquid by the vent gas treatment facility (B), and all returns
Return in the basin.
2. exhaust treatment system according to claim 1, it is characterised in that the vent gas treatment
Facility (B) also includes lime set tank (32) and lime set pump (33), the liquid discharge of the air-breathing tank (11)
Mouth is communicated to the entrance of the lime set tank (32), and the lime set pump (33) is for by the lime set tank (32)
In liquid pumping to the basin in, liquid in the gas tank (31) is flowed into described using pressure difference
In basin.
3. exhaust treatment system according to claim 1, it is characterised in that the storing material
Facility (A) includes one or more described basin, and many gas phases of the basin pass through gas-liquid equilibrium pipe
(7) connect.
4. a kind of exhaust treatment system of basin class storing material facility, it is characterised in that the material
The seal gas pressure of the basin in storage facilities (A) is between 0.06MPaG to 0.26MPaG,
The exhalation vents of the basin are connected with the exhalation vents of material shipping facilities (C), the vent gas treatment facility
(B) the air-breathing tank (11), compressor (12), cooling segregator (13) and the storage that are sequentially connected in series are included
Gas tank (31), the entrance of the air-breathing tank (11) is communicated to the exhalation vents of the basin, the air storage
The gas vent of tank (31) is communicated to the air entry of the basin, the gas tank (31) and air-breathing tank
(11) liquid outlet is communicated to the liquid inlet of the basin, so that the basin and material shipment set
The tail gas for applying (C) exhalation is separated into gas and liquid by the vent gas treatment facility (B), and entirely
Portion is returned in the basin.
5. exhaust treatment system according to claim 4, it is characterised in that the vent gas treatment
Facility (B) also includes lime set tank (32) and lime set pump (33), the liquid discharge of the air-breathing tank (11)
Mouth is communicated to the entrance of the lime set tank (32), and the lime set pump (33) is for by the lime set tank (32)
In liquid pumping to the basin in, liquid in the gas tank (31) is flowed into described using pressure difference
In basin.
6. exhaust treatment system according to claim 4, it is characterised in that the storing material
Facility (A) includes one or more described basin, and many gas phases of the basin pass through gas-liquid equilibrium pipe
(7) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780573.5A CN106693436A (en) | 2015-11-13 | 2015-11-13 | Tail gas treatment system for storage tank type material storage facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780573.5A CN106693436A (en) | 2015-11-13 | 2015-11-13 | Tail gas treatment system for storage tank type material storage facilities |
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| Publication Number | Publication Date |
|---|---|
| CN106693436A true CN106693436A (en) | 2017-05-24 |
Family
ID=58931465
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510780573.5A Pending CN106693436A (en) | 2015-11-13 | 2015-11-13 | Tail gas treatment system for storage tank type material storage facilities |
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| JPS6365935A (en) * | 1986-09-08 | 1988-03-24 | Chiyoda Chem Eng & Constr Co Ltd | Treatment of exhaust gas |
| JPH05168853A (en) * | 1991-12-20 | 1993-07-02 | Electric Power Dev Co Ltd | Device for recovering carbon dioxide of boiler |
| CN101637663A (en) * | 2008-08-02 | 2010-02-03 | 中国石油化工股份有限公司 | Method for treating release gas in storage tank area |
| CN101721832A (en) * | 2008-10-28 | 2010-06-09 | 中国石油化工股份有限公司 | Method for treating discharged waste gas of acid water tank area |
| CN202516336U (en) * | 2012-04-23 | 2012-11-07 | 大连欧科膜技术工程有限公司 | Storage tank area effluent gas treatment system |
| CN102940974A (en) * | 2012-11-07 | 2013-02-27 | 江苏大学 | Oil gas condensation and recovery method by using mixed refrigerant cycle |
| CN103041700A (en) * | 2011-10-14 | 2013-04-17 | 中国石油化工股份有限公司 | Butadiene tail gas hydrogenation unit and hydrogenation method |
| CN203764082U (en) * | 2013-12-31 | 2014-08-13 | 菏泽赛托生物科技有限公司 | Tail gas recovery processing device |
| CN104139938A (en) * | 2014-08-01 | 2014-11-12 | 南京大学盐城环保技术与工程研究院 | Storage tank respiratory air collecting and purifying system and method |
| CN104443897A (en) * | 2014-10-31 | 2015-03-25 | 浙江海洋学院 | Comprehensive treatment device and method for crude oil tank emergent gas and ship tail gas recycle |
| CN104548879A (en) * | 2013-10-24 | 2015-04-29 | 中国石油化工股份有限公司 | Treating device and method for exhausted gas of acid water tank in oil refinery |
| CN104548862A (en) * | 2015-02-05 | 2015-04-29 | 中石化上海工程有限公司 | Energy-saving method for styrene plant dehydrogenation tail gas treatment system |
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2015
- 2015-11-13 CN CN201510780573.5A patent/CN106693436A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6365935A (en) * | 1986-09-08 | 1988-03-24 | Chiyoda Chem Eng & Constr Co Ltd | Treatment of exhaust gas |
| JPH05168853A (en) * | 1991-12-20 | 1993-07-02 | Electric Power Dev Co Ltd | Device for recovering carbon dioxide of boiler |
| CN101637663A (en) * | 2008-08-02 | 2010-02-03 | 中国石油化工股份有限公司 | Method for treating release gas in storage tank area |
| CN101721832A (en) * | 2008-10-28 | 2010-06-09 | 中国石油化工股份有限公司 | Method for treating discharged waste gas of acid water tank area |
| CN103041700A (en) * | 2011-10-14 | 2013-04-17 | 中国石油化工股份有限公司 | Butadiene tail gas hydrogenation unit and hydrogenation method |
| CN202516336U (en) * | 2012-04-23 | 2012-11-07 | 大连欧科膜技术工程有限公司 | Storage tank area effluent gas treatment system |
| CN102940974A (en) * | 2012-11-07 | 2013-02-27 | 江苏大学 | Oil gas condensation and recovery method by using mixed refrigerant cycle |
| CN104548879A (en) * | 2013-10-24 | 2015-04-29 | 中国石油化工股份有限公司 | Treating device and method for exhausted gas of acid water tank in oil refinery |
| CN203764082U (en) * | 2013-12-31 | 2014-08-13 | 菏泽赛托生物科技有限公司 | Tail gas recovery processing device |
| CN104139938A (en) * | 2014-08-01 | 2014-11-12 | 南京大学盐城环保技术与工程研究院 | Storage tank respiratory air collecting and purifying system and method |
| CN104443897A (en) * | 2014-10-31 | 2015-03-25 | 浙江海洋学院 | Comprehensive treatment device and method for crude oil tank emergent gas and ship tail gas recycle |
| CN104548862A (en) * | 2015-02-05 | 2015-04-29 | 中石化上海工程有限公司 | Energy-saving method for styrene plant dehydrogenation tail gas treatment system |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |