CN107523327A - The reuse means and method of C4 accessory substances obtained by a kind of gasoline production - Google Patents
The reuse means and method of C4 accessory substances obtained by a kind of gasoline production Download PDFInfo
- Publication number
- CN107523327A CN107523327A CN201710833749.8A CN201710833749A CN107523327A CN 107523327 A CN107523327 A CN 107523327A CN 201710833749 A CN201710833749 A CN 201710833749A CN 107523327 A CN107523327 A CN 107523327A
- Authority
- CN
- China
- Prior art keywords
- gasoline production
- accessory substances
- stabilizer
- branch pipe
- gasoline
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 51
- 239000000126 substance Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims description 16
- 239000003381 stabilizer Substances 0.000 claims abstract description 29
- 238000005899 aromatization reaction Methods 0.000 claims abstract description 22
- 238000010992 reflux Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 16
- 239000002994 raw material Substances 0.000 abstract description 14
- 150000001335 aliphatic alkanes Chemical class 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 210000000038 chest Anatomy 0.000 description 8
- 238000004064 recycling Methods 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000001336 alkenes Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/58—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins
- C10G45/68—Aromatisation of hydrocarbon oil fractions
-
- 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
- B01J19/24—Stationary reactors without moving elements inside
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1037—Hydrocarbon fractions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a kind of reuse means of C4 accessory substances obtained by gasoline production, including gasoline production device and stabilizer, it is characterised in that：The top of the stabilizer is provided with bleed pipeline, the input of the end connection water cooler of the bleed pipeline, the output end of the water cooler connects the input of return tank by pipeline, the output end of the return tank is provided with reflux line, and the C4 components isolated are delivered into stabilizer, C4 holding vessels and aromatization device respectively.The device reduces continuous accumulation of the alkane C4 components not being converted in gasoline production device in raw material tank field, improve the conversion ratio of C4 component raw materials used in gasoline production device, the conversion ratio of C4 components brings up to 75 80% by original 55 65%, reducing the C4 components not being converted needs energy consumption caused by separation, so as to reduce processing cost.
Description
Technical field
The present invention relates to chemical technology field, more particularly to the reuse means of C4 accessory substances obtained by a kind of gasoline production and
Method.
Background technology
Existing gasoline production device is not after reaction as raw material, raw material using C4 liquefied gas and low sulfur naphtha
100% is converted into target product, and unconverted C4 components account for the 35-45% of C4 component inlet amounies.These unconverted C4 groups
40-50% is alkane structure in point, can not fully be reacted in gasoline apparatus reactor.The C4 components of these alkane structures
Constantly accumulated in head tank, gasoline production device can be influenceed and obtain more target products, reduce the actual conversion of raw material.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of recycling of C4 accessory substances obtained by gasoline production
Device, the device can efficiently separate out C4 components, and the raw material as aromatization and gasoline production from gasoline accessory substance,
Improve the utilization rate of raw material.
The reuse means of C4 accessory substances obtained by a kind of gasoline production, including gasoline production device and stabilizer are described steady
The top for determining tower is provided with bleed pipeline, the input of the end connection water cooler of the bleed pipeline, the output of the water cooler
End connects the input of return tank by pipeline, and the output end of the return tank is provided with reflux line, and the reflux line is divided into
Flow back branch pipe A, backflow branch pipe B, backflow branch pipe C, the backflow branch pipe A stable connection towers, the backflow branch pipe B connections C4 storages
The input of tank, the output end of the C4 holding vessels connect the gasoline production device, and the backflow branch pipe C connections aromatisation is anti-
Answer device.
Preferably, the bottom of the stabilizer is provided with reboiler.
Preferably, the return tank is also connected with ice chest.
Preferably, the reflux line is provided with reflux pump.
The reuse method of C4 accessory substances, method and step are as follows obtained by a kind of gasoline production：
S1：The generation C1-C12 accessory substances of gasoline production device separate into stabilizer；
S2：C1-C4 accessory substances export from the bleed pipeline at the top of stabilizer enters water cooler；
S3：Ice chest is entered with gaseous state from the C1-C3 accessory substances of water cooler output, C4 accessory substances enter return duct with liquid
Road；
S4：C4 accessory substances into reflux line are delivered to aromatization device, C4 holding vessels and stabilizer and entered respectively
Row recycling.
Further, the temperature of the gasoline production device be 390-420 DEG C, pressure 0.7MPa.
Further, the temperature of the aromatization device be 490-530 DEG C, pressure 0.5MPa.
The present invention is based on following principle：
Gasoline production device enters using C4 liquefied gas and low sulfur naphtha as raw material under the conditions of 390-420 DEG C, 0.7MPa
Enter reactor, and reacted under catalyst action.Because C4 components have different structures in raw material, such as：Linear chain structure, ring
Chain structure, alkane structure, alkene structures, wherein alkane structure can not fully be reacted under gasoline apparatus reactor condition,
Therefore unconverted C4 components account for the 35-45% of C4 components in inlet amount；And due to aromatisation device be with C4 liquefied gas and
Low sulfur naphtha is as raw material, and its reaction temperature is 490-530 DEG C, pressure 0.5MPa, and reaction temperature is higher, catalytic reaction effect
Fruit is more preferable, and unconverted C4 components will be further utilized in gasoline production device.
The reaction oil gas of gasoline production device reaction generation enters gasoline stabilizer and carries out weight component separation, from stabilizer
Top obtains C1-C4 components, and C1-C3 accessory substances enter ice chest with gaseous state, and C4 accessory substances enter reflux line with liquid；Obtained
C4 accessory substances can be as desired as feedstock transportation to aromatization device；Exhaustless C4 accessory substances can be delivered to C4 storages
Tank is deposited, the C4 holding vessels are also connected with gasoline reaction unit, and the raw material that can also serve as gasoline production is recycled.
Beneficial effect in the present invention：
Unconverted C4 in gasoline production device is exactly led to aromatisation device reaction by a kind of device proposed by the present invention
Device, in aromatisation device reaction device, temperature is higher, catalytic reaction effect is more preferable.It can not be obtained in gasoline apparatus completely anti-
The alkane structure C4 answered can be further converted to target product.
The device reduces continuous accumulation of the alkane C4 components not being converted in gasoline production device in raw material tank field, carry
The high conversion ratio of C4 component raw materials used in gasoline production device, the conversion ratio of C4 components bring up to 75- by original 55-65%
80%, reducing the C4 components not being converted needs energy consumption caused by separation, so as to reduce processing cost.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural representation of the reuse means of C4 accessory substances obtained by a kind of gasoline production proposed by the present invention.
In figure：1- gasoline productions device, 2- stabilizers, 3- bleeds pipeline, 4- water coolers, 5- return tanks, 6- reflux pumps, 7-
Reflux line, 701- backflow branch pipe A, 702- backflow branch pipe B, 703- backflow branch pipe C, 8- aromatizations device, 9-C4 storages
Tank, 10- ice chests, 11- reboilers.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
Embodiment 1
Reference picture 1, the reuse means of C4 accessory substances obtained by a kind of gasoline production, including gasoline production device 1 and stably
Tower 2, the bottom of stabilizer 2 are provided with reboiler 11, for providing heat to stabilizer 2；The top of stabilizer 2 is provided with bleed pipeline
3, the input of the end connection water cooler 4 of bleed pipeline 3, the output end of water cooler 4 connects the input of return tank 5 by pipeline
End, the output end of return tank 5 are provided with reflux line 7, and reflux line 7 is provided with reflux pump 6, and return tank 5 is also connected with ice chest 10.
Reflux line 7 is divided into backflow branch pipe A 701, backflow branch pipe B 702, backflow branch pipe C 703, backflow branch pipe A 701
Stable connection tower 2, backflow branch pipe B 702 connect the input of C4 holding vessels 9, the output end connection gasoline production of C4 holding vessels 9
Device 1, backflow branch pipe C 703 connect aromatization device 8.
Embodiment 2
The reuse method of C4 accessory substances, method and step are as follows obtained by kind gasoline production：
S1：The generation C1-C12 accessory substances of gasoline production device separate into stabilizer, and the temperature of gasoline production device is
390 DEG C, pressure 0.7MPa；
S2：C1-C4 accessory substances export from the bleed pipeline at the top of stabilizer enters water cooler；
S3：Ice chest is entered with gaseous state from the C1-C3 accessory substances of water cooler output, C4 accessory substances enter return duct with liquid
Road；
S4：C4 accessory substances into reflux line are delivered to aromatization device, C4 holding vessels and stabilizer and entered respectively
Row recycling, the temperature of wherein aromatization device is 490 DEG C, pressure 0.5MPa.
Embodiment 3
The reuse method of C4 accessory substances, method and step are as follows obtained by kind gasoline production：
S1：The generation C1-C12 accessory substances of gasoline production device separate into stabilizer, and the temperature of gasoline production device is
420 DEG C, pressure 0.7MPa；
S2：C1-C4 accessory substances export from the bleed pipeline at the top of stabilizer enters water cooler；
S3：Ice chest is entered with gaseous state from the C1-C3 accessory substances of water cooler output, C4 accessory substances enter return duct with liquid
Road；
S4：C4 accessory substances into reflux line are delivered to aromatization device, C4 holding vessels and stabilizer and entered respectively
Row recycling, the temperature of wherein aromatization device is 530 DEG C, pressure 0.5MPa.
Embodiment 4
The reuse method of C4 accessory substances, method and step are as follows obtained by kind gasoline production：
S1：The generation C1-C12 accessory substances of gasoline production device separate into stabilizer, and the temperature of gasoline production device is
400 DEG C, pressure 0.7MPa；
S2：C1-C4 accessory substances export from the bleed pipeline at the top of stabilizer enters water cooler；
S3：Ice chest is entered with gaseous state from the C1-C3 accessory substances of water cooler output, C4 accessory substances enter return duct with liquid
Road；
S4：C4 accessory substances into reflux line are delivered to aromatization device, C4 holding vessels and stabilizer and entered respectively
Row recycling, the temperature of wherein aromatization device is 500 DEG C, pressure 0.5MPa.
The present invention gasoline production device and aromatization device are combined, will after gasoline apparatus reacts without
The raw material that the C4 components of conversion are used as aromatization device is recycled, and reduces middle intermediate links, improves conversion ratio, section
About cost, the calculating through factory's actual production, the conversion ratio of C4 components bring up to 75-80% by original 55-65%.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. the reuse means of C4 accessory substances obtained by a kind of gasoline production, including gasoline production device and stabilizer, its feature exist
In：The top of the stabilizer is provided with bleed pipeline, the input of the end connection water cooler of the bleed pipeline, the water cooling
The output end of device connects the input of return tank by pipeline, and the output end of the return tank is provided with reflux line, the backflow
Pipeline is divided into backflow branch pipe A, backflow branch pipe B, backflow branch pipe C, the backflow branch pipe A stable connection towers, and the backflow branch pipe B connects
The input of C4 holding vessels is connect, the output end of the C4 holding vessels connects the gasoline production device, the backflow branch pipe C connections
Aromatization device.
2. the reuse means of C4 accessory substances obtained by a kind of gasoline production according to claim 1, it is characterised in that described
The bottom of stabilizer is provided with reboiler.
3. the reuse means of C4 accessory substances obtained by a kind of gasoline production according to claim 1, it is characterised in that described
Return tank is also connected with ice chest.
4. the reuse means of C4 accessory substances obtained by a kind of gasoline production according to claim 1, it is characterised in that described
Reflux line is provided with reflux pump.
5. the reuse method of C4 accessory substances obtained by a kind of gasoline production according to claim 1, it is characterised in that method
Step is as follows：
S1：The generation C1-C12 accessory substances of gasoline production device separate into stabilizer；
S2：C1-C4 accessory substances export from the bleed pipeline at the top of stabilizer enters water cooler；
S3：Ice chest is entered with gaseous state from the C1-C3 accessory substances of water cooler output, C4 accessory substances enter reflux line with liquid；
S4：C4 accessory substances into reflux line are delivered to aromatization device, C4 holding vessels and stabilizer progress again respectively
Circulation.
6. the reuse method of C4 accessory substances obtained by a kind of gasoline production according to claim 5, it is characterised in that described
The temperature of gasoline production device is 390-420 DEG C, pressure 0.7MPa.
7. the reuse method of C4 accessory substances obtained by a kind of gasoline production according to claim 5, it is characterised in that described
The temperature of aromatization device is 490-530 DEG C, pressure 0.5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710833749.8A CN107523327A (en) | 2017-09-15 | 2017-09-15 | The reuse means and method of C4 accessory substances obtained by a kind of gasoline production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710833749.8A CN107523327A (en) | 2017-09-15 | 2017-09-15 | The reuse means and method of C4 accessory substances obtained by a kind of gasoline production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107523327A true CN107523327A (en) | 2017-12-29 |
Family
ID=60736689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710833749.8A Pending CN107523327A (en) | 2017-09-15 | 2017-09-15 | The reuse means and method of C4 accessory substances obtained by a kind of gasoline production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107523327A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690677A (en) * | 2012-06-08 | 2012-09-26 | 北京惠尔三吉绿色化学科技有限公司 | Method for producing high-octane number clean gasoline by combining alkane aromatization and olefin aromatization of liquefied gas |
| CN203558986U (en) * | 2013-08-18 | 2014-04-23 | 河南永胜能源化工集团有限公司 | Device for refining and machining aromatic hydrocarbons by using liquefied gas |
| CN203728776U (en) * | 2014-02-11 | 2014-07-23 | 葫芦岛市锦隆石化高科技有限责任公司 | Naphtha and aromatization device for naphtha and liquefied gas |
| CN105861039A (en) * | 2015-01-23 | 2016-08-17 | 上海优华系统集成技术有限公司 | liquefied gas aromatization apparatus |
| CN207276556U (en) * | 2017-09-15 | 2018-04-27 | 武汉凯顺石化科技有限公司 | The reuse means of C4 accessory substances obtained by a kind of gasoline production |
-
2017
- 2017-09-15 CN CN201710833749.8A patent/CN107523327A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690677A (en) * | 2012-06-08 | 2012-09-26 | 北京惠尔三吉绿色化学科技有限公司 | Method for producing high-octane number clean gasoline by combining alkane aromatization and olefin aromatization of liquefied gas |
| CN203558986U (en) * | 2013-08-18 | 2014-04-23 | 河南永胜能源化工集团有限公司 | Device for refining and machining aromatic hydrocarbons by using liquefied gas |
| CN203728776U (en) * | 2014-02-11 | 2014-07-23 | 葫芦岛市锦隆石化高科技有限责任公司 | Naphtha and aromatization device for naphtha and liquefied gas |
| CN105861039A (en) * | 2015-01-23 | 2016-08-17 | 上海优华系统集成技术有限公司 | liquefied gas aromatization apparatus |
| CN207276556U (en) * | 2017-09-15 | 2018-04-27 | 武汉凯顺石化科技有限公司 | The reuse means of C4 accessory substances obtained by a kind of gasoline production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8710286B2 (en) | Oxidative coupling of hydrocarbons as heat source | |
| JP2017503994A (en) | Method, separator and olefin plant for separating hydrocarbon mixtures containing hydrogen | |
| CN103936542B (en) | A kind of olefins by catalytic cracking system and method improving alkene total conversion rate | |
| CN207276556U (en) | The reuse means of C4 accessory substances obtained by a kind of gasoline production | |
| CN210419809U (en) | Esterification and rectification heat integration system in process of preparing ethylene glycol from coal | |
| CN107941047A (en) | A kind of heat exchanger, the four Hydrogenation iso-butane device and method of mixing carbon using the heat exchanger | |
| CN103288601B (en) | Cyclohexanol distillation method | |
| CN107523327A (en) | The reuse means and method of C4 accessory substances obtained by a kind of gasoline production | |
| CN207816054U (en) | A kind of heat exchanger, the four Hydrogenation iso-butane device of mixing carbon using the heat exchanger | |
| CN107056570B (en) | Device and process for refining alkylation feed gas by isooctane | |
| RU2493898C1 (en) | Method of field processing of gas condensate deposit products using unstable gas condensate as coolant and plant to this end | |
| CN109869636A (en) | A kind of outer output oil CO of reduction2The offshore platform process system and method for partial pressure | |
| CN111102868B (en) | System and method for recycling waste heat of propane dehydrogenation device | |
| CN107285981A (en) | A kind of domethanizing column heat-exchange system and heat-exchange method | |
| CN206828425U (en) | Butane isomerization stabilizer backflow optimization device | |
| CN202359042U (en) | Device for utilizing liquefied gas to process and produce hydrocarbon | |
| CN108441252B (en) | Cryogenic distillation apparatus | |
| CN204356288U (en) | A kind of weight hydrocarbon separation system | |
| CN109312235B (en) | Refining preheating production line system and method | |
| CN207047128U (en) | The utilization system of off-gas in industrial propenecarbonyl synthesizer | |
| CN218011132U (en) | Process equipment for processing low olefin by n-butane isomerization device | |
| CN205974402U (en) | Base oil is fractionating system in advance | |
| CN105316041A (en) | Residual oil hydrogenation method | |
| CN207537399U (en) | C5 of the cracking of ethylene rich in alkene raffinates oil hydrogenation plant | |
| CN203782055U (en) | Device for improving quality of product in C4 isomerization process |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171229 |