HRP20210708T1 - Postupak i postrojenje za proizvodnju uree - Google Patents
Postupak i postrojenje za proizvodnju uree Download PDFInfo
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- HRP20210708T1 HRP20210708T1 HRP20210708TT HRP20210708T HRP20210708T1 HR P20210708 T1 HRP20210708 T1 HR P20210708T1 HR P20210708T T HRP20210708T T HR P20210708TT HR P20210708 T HRP20210708 T HR P20210708T HR P20210708 T1 HRP20210708 T1 HR P20210708T1
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- Prior art keywords
- urea
- section
- stream
- purification
- aqueous
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims 54
- 239000004202 carbamide Substances 0.000 title claims 54
- 238000004519 manufacturing process Methods 0.000 title claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 26
- 230000015572 biosynthetic process Effects 0.000 claims 22
- 238000003786 synthesis reaction Methods 0.000 claims 22
- 239000007788 liquid Substances 0.000 claims 20
- 238000000746 purification Methods 0.000 claims 20
- 238000011084 recovery Methods 0.000 claims 18
- 238000000034 method Methods 0.000 claims 11
- 239000000243 solution Substances 0.000 claims 11
- 239000007789 gas Substances 0.000 claims 8
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims 7
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims 7
- 229910021529 ammonia Inorganic materials 0.000 claims 6
- 239000002912 waste gas Substances 0.000 claims 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 4
- 238000010790 dilution Methods 0.000 claims 3
- 239000012895 dilution Substances 0.000 claims 3
- 238000010438 heat treatment Methods 0.000 claims 3
- 238000005201 scrubbing Methods 0.000 claims 3
- 239000007864 aqueous solution Substances 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 1
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims 1
- 238000007865 diluting Methods 0.000 claims 1
- 238000010494 dissociation reaction Methods 0.000 claims 1
- 230000005593 dissociations Effects 0.000 claims 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000002161 passivation Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 238000004065 wastewater treatment Methods 0.000 claims 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0054—General arrangements, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
-
- 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
- B01J19/0053—Details of the reactor
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
- B01J2219/0277—Metal based
- B01J2219/0286—Steel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Claims (15)
1. Postupak za proizvodnju pročišćene otopine uree koja je poželjno prikladna za uporabu u smanjenju NOx, posebno za uporabu kao dizelski ispušni fluid (DEF) ili razrjeđivanje u DEF, postupak koji sadrži:
A) reagiranje CO2 i NH3 u uvjetima sinteze uree u reaktoru za sintezu uree koji radi pod visokim tlakom, dajući tok sinteze uree koji sadrži ureu, NH3, CO2 i količinu karbamata,
B) širenje toka sinteze uree u odjeljku za oporavak čime se smanjuje tlak, pri čemu tok sinteze uree koji se širi sadrži najmanje 90 mas.% navedene količine karbamata,
i zagrijavanje barem dijela proširenog toka sinteze uree u jednoj ili više disocijacijskih jedinica pri srednjem i/ili niskom tlaku, kako bi se dobio vodeni tok uree i odjeljak za oporavak pare koja sadrži NH3 i CO2,
C) izlaganje u odjeljku za pročišćavanje barem dijela vodenog toka uree pročišćavanju, pri čemu je pročišćavanje uklanjanje radi uklanjanja amonijaka i/ili pri čemu pročišćavanje daje otopinu uree s alkalnošću kao NH3 manjom od 0.2 mas.% pri 32.5 mas.% uree, dajući pročišćenu otopinu uree i odjeljak za pročišćavanje otpadnog plina koji sadrži vodu i amonijak,
D) izborno razrjeđivanje barem dijela pročišćene otopine uree i/ili vodenog toka uree koja se pročišćava vodom kako bi se dobila ciljana koncentracija uree,
E) pri čemu se otpadni plin iz dijela za pročišćavanje kondenzira dajući kondenzat u odjeljku za pročišćavanje i navedeni kondenzat iz odjeljka za pročišćavanje se reciklira u navedeni reaktor za sintezu uree.
2. Postupak prema zahtjevu 1, naznačen time što se kondenzat odjeljka za pročišćavanje dovodi protokom tekućine u reaktor za sintezu uree, i pri čemu je pročišćavanje uklanjanje pare pod niskim tlakom i uključuje kontakt vodene otopine uree u suprotnom protoku s parom pod tlakom manjim od manje od 3 bara.
3. Postupak prema zahtjevu 1 ili 2, naznačen time što sadrži:
a) kondenziranje odjeljka za oporavak pare da bi se dobio reciklirani tok tekućeg karbamata u kondenzatoru odjeljka za oporavak, pri čemu navedeni kondenzator radi pod nižim tlakom od navedenog reaktora za sintezu uree,
b) dovod reciklažnog toka karbamata u reaktor za sintezu uree, poželjno pomoću pumpe,
c) i dovod navedenog kondenzata iz odjeljka za pročišćavanje u navedeni kondenzator odjeljka za oporavak.
4. Postupak prema zahtjevu 3, koji nadalje obuhvaća korak dovoda ne-kondenziranih plinova iz kondenzatora odjeljka za oporavak, izborno kroz dodatni kondenzator, do koraka pročišćavanja tekućinom za pročišćavanje u pročišćivaču dajući pročišćeni plin i istrošenu tekućinu za pročišćavanje, pri čemu postupak nadalje obuhvaća dovod drugog otpadnog plina iz kondenzatora odjeljka za pročišćavanje do navedenog pročišćavača, i poželjno dovod dijela navedene istrošene tekućine za pročišćavanje u navedeni kondenzator odjeljka za pročišćavanje, izborno kroz navedeni dodatni kondenzator.
5. Postupak prema bilo kojem od zahtjeva 1-4, naznačen time što korak B sadrži
B1) širenje toka sinteze uree na srednji tlak, izborno odvajanje plina i tekućine i zagrijavanje barem dijela toka sinteze uree na srednjem tlaku kako bi se dobio MP odjeljak za oporavak pare i MP vodena otopina uree, i
B2) širenje MP vodene otopine uree na nizak tlak i zagrijavanje ekspandirane vodene otopine uree pod niskim tlakom kako bi se dobio LP odjeljak za oporavak pare i LP vodena otopina uree.
6. Postupak prema bilo kojem od zahtjeva 1-5, naznačen time što se najmanje 85% svježeg CO2 unosa dodaje izravno u reaktor.
7. Postupak prema bilo kojem od zahtjeva 1-6, naznačen time što navedeni korak C obuhvaća širenje navedene vodene struje uree, poželjno druge vodene otopine uree, na radni tlak odjeljka za pročišćavanje, pri čemu je radni tlak odjeljka za pročišćavanje poželjno u rasponu 0.010 do 1.5 apsolutnog bara, i pri čemu korak C obuhvaća uklanjanje pare proširenog vodenog toka uree, pri čemu uklanjanje pare uključuje izravno ubrizgavanje pare u prošireni vodeni tok uree.
8. Postupak prema zahtjevu 7, naznačen time što se uklanjanje pare izvodi pri 0.010 do 1.5 apsolutnog bara u koloni za uklanjanje s ciklonskim separatorom na vrhu kolone, pladnjem za raspodjelu tekućine i nabijenim slojem, pri čemu se plin odvaja od ekspandirane struje vodene otopine uree u ciklonskom separatoru, plin izlazi kroz ispust na vrhu, tekućina teče dolje iz ciklonskog separatora na pladnju za distribuciju tekućine, i pladanj za distribuciju tekućine distribuira tekućinu preko nabijenog sloja.
9. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time što se ne koristi pasivacijski zrak i/ili gdje dovod CO2 sadrži manje od 0.05 mas.% kisika.
10. Postrojenje za proizvodnju pročišćene otopine uree koja otopina uree je poželjno prikladna za uporabu u sustavima za smanjenje NOx, posebno za uporabu kao dizelski ispušni fluid (DEF) ili razrjeđivanje u DEF, postrojenje koje sadrži:
A) odjeljak za sintezu uree koji sadrži visokotlačni reaktor za sintezu uree koji ima ulaz za CO2 i ulaz za NH3, pri čemu CO2 i NH3 reagiraju u uvjetima sinteze uree da se stvori tok sinteze uree koji sadrži ureu, vodu i amonijev karbamat,
B) odjeljak za oporavak u kojem se tok sinteze uree zagrijava pod smanjenim tlakom, dajući vodeni tok uree i odjeljak za oporavak pare koji sadrži CO2 i NH3, i pri čemu se navedeni odjeljak za oporavak pare kondenzira dajući karbamat i amonijak, poželjno s odvojenim kondenzatorima za amonijak i karbamat,
C) odjeljak za pročišćavanje u kojem se vodeni tok uree uklanja u jedinicu za obradu odjeljka za pročišćavanje radi uklanjanja amonijaka, dajući pročišćeni tok uree i odjeljak za pročišćavanje otpadnog plina,
D) poželjno odjeljak za razrjeđivanje uree, pri čemu se pročišćeni tok uree i/ili vodeni tok uree razrijedi vodom,
pri čemu postrojenje sadrži reciklažni vod za karbamat od odjeljka za oporavak do odjeljka za sintezu uree i zasebni drugi odvodni kanal za amonijak od odjeljka za oporavak do odjeljka za sintezu uree,
pri čemu odjeljak za pročišćavanje nadalje sadrži kondenzator odjeljka za pročišćavanje za kondenzaciju odjeljka za pročišćavanje otpadnih plinova do kondenzata odjeljka za pročišćavanje, i pri čemu postrojenje sadrži priključak protoka tekućine za kondenzat odjeljka za pročišćavanje od navedenog kondenzatora odjeljka za pročišćavanje do reaktora za sintezu uree.
11. Postrojenje prema zahtjevu 10, naznačeno time što se jedinica za obradu odjeljka za pročišćavanje sastoji od niskotlačnog pročišćivača pare koji prima vodeni tok uree, pri čemu pročišćivač pare ima ulaz za paru, i pri čemu odjeljak za pročišćavanje sadrži izbacivač za povlačenje plina iz odjeljka za pročišćavanje.
12. Postrojenje prema zahtjevu 11, naznačeno time što pročišćivač pare sadrži ciklonski separator na vrhu, ladicu za distribuciju tekućine, i nabijeni sloj, konfiguriran tako da u radu dvofazna tekućina ekspandirane vodene uree ulazi u ciklonski separator, plin ostavlja na vrhu, tekućina teče iz separatora ciklona na pladnju za raspodjelu tekućine, i pladanj za raspodjelu tekućine raspoređuje tekućinu preko nabijenog sloja.
13. Postrojenje prema bilo kojem od zahtjeva 10-12, naznačeno time što odjeljak za oporavak nadalje sadrži kondenzator odjeljka za oporavak za odjeljak za oporavak pare, pri čemu postrojenje sadrži vod protoka tekućine od kondenzatora odjeljka za pročišćavanje do navedenog kondenzatora odjeljka za oporavak, i vod protoka tekućine od navedenog kondenzatora odjeljka za oporavak do reaktora za sintezu uree.
14. Postrojenje prema bilo kojem od zahtjeva 10-13, naznačeno time što reaktor za sintezu uree sadrži feritno-austenitni dupleks nehrđajući čelik.
15. Postrojenje prema bilo kojem od zahtjeva 10-14, naznačeno time što postrojenje ne uključuje odjeljak za obradu otpadnih voda.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17201121 | 2017-11-10 | ||
| EP18812399.6A EP3707121B1 (en) | 2017-11-10 | 2018-11-09 | Urea production process and plant |
| PCT/NL2018/050747 WO2019093891A1 (en) | 2017-11-10 | 2018-11-09 | Urea production process and plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HRP20210708T1 true HRP20210708T1 (hr) | 2021-08-06 |
Family
ID=60301917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HRP20210708TT HRP20210708T1 (hr) | 2017-11-10 | 2021-05-06 | Postupak i postrojenje za proizvodnju uree |
Country Status (10)
| Country | Link |
|---|---|
| US (2) | US10759745B2 (hr) |
| EP (1) | EP3707121B1 (hr) |
| CN (1) | CN111295370B (hr) |
| AU (1) | AU2018366077B2 (hr) |
| CA (1) | CA3082032C (hr) |
| EA (1) | EA202091171A1 (hr) |
| HR (1) | HRP20210708T1 (hr) |
| MX (1) | MX2020004876A (hr) |
| MY (1) | MY191504A (hr) |
| WO (1) | WO2019093891A1 (hr) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190091604A1 (en) * | 2017-09-22 | 2019-03-28 | Tenneco Automotive Operating Company Inc. | Method And Apparatus For Preparation Of A Urea Solution |
| CA3082032C (en) | 2017-11-10 | 2021-10-26 | Stamicarbon B.V. | Urea production process and plant |
| EP3782979A1 (en) * | 2019-08-20 | 2021-02-24 | Yara International ASA | Preparation of urea solution and facility to do so |
| EP4084883B1 (en) * | 2019-12-30 | 2023-10-25 | Stamicarbon B.V. | Urea production with multiple evaporators |
| AU2020418337A1 (en) * | 2019-12-30 | 2022-07-21 | Stamicarbon B.V. | Ammonia removal from urea finishing |
| EP4085050A1 (en) * | 2019-12-30 | 2022-11-09 | Stamicarbon B.V. | Urea plant with chilled condensation section |
| WO2021261999A1 (en) * | 2020-06-23 | 2021-12-30 | Stamicarbon B.V. | Thermal stripping urea plant and process |
| WO2022076866A1 (en) * | 2020-10-09 | 2022-04-14 | AWA Technology LLC | Diesel exhaust fluid on demand system, apparatus, and method |
| US20230265051A1 (en) * | 2021-02-22 | 2023-08-24 | Stamicarbon B.V. | Urea production process and plant with parallel mp units |
| CN113101682B (zh) * | 2021-05-28 | 2023-03-24 | 新疆心连心能源化工有限公司 | 减少蒸发掉缩合物稳定尿素生产的装置及处理方法 |
| CN117460715A (zh) * | 2021-06-11 | 2024-01-26 | 斯塔米卡邦有限公司 | 利用三重mp流的尿素生产 |
| US20240059623A1 (en) * | 2022-02-15 | 2024-02-22 | Stamicarbon B.V. | Stripping-type urea plant for def production |
| CN114856766B (zh) * | 2022-04-21 | 2023-04-25 | 国能龙源环保南京有限公司 | 联合光伏发电使用的尿素溶液储存运输系统与方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL101446C (hr) * | 1960-04-08 | |||
| US3574738A (en) * | 1968-12-26 | 1971-04-13 | Ivo Mavrovic | Process of synthesizing urea |
| JPS5268129A (en) * | 1975-12-05 | 1977-06-06 | Mitsui Toatsu Chem Inc | Recovery of unreacted material and heat on urea synthesis |
| SE501321C2 (sv) | 1993-06-21 | 1995-01-16 | Sandvik Ab | Ferrit-austenitiskt rostfritt stål samt användning av stålet |
| NL1007713C2 (nl) | 1997-12-05 | 1999-06-08 | Dsm Nv | Werkwijze voor de bereiding van ureum. |
| NL1026607C2 (nl) | 2004-07-07 | 2006-01-10 | Dsm Ip Assets Bv | Werkwijze voor de bereiding van ureum. |
| NL1028497C2 (nl) * | 2005-03-09 | 2006-09-12 | Dsm Ip Assets Bv | Werkwijze voor de bereiding van een ureum-bevattende waterige stroom. |
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| PL2844640T3 (pl) | 2012-05-03 | 2018-12-31 | Stamicarbon B.V. | Instalacja do produkcji mocznika |
| CN103043809B (zh) * | 2012-12-14 | 2014-06-11 | 南京中创水务集团股份有限公司 | 旋流吹脱一体化除氨反应塔 |
| EP2801396A1 (en) | 2013-05-10 | 2014-11-12 | Casale Sa | Use of duplex stainless steel in an ammonia-stripping of urea plants |
| EA035246B1 (ru) | 2014-07-17 | 2020-05-20 | Стамикарбон Б.В. | Способ производства карбамидного продукта |
| CN108137335B (zh) | 2015-03-25 | 2021-10-26 | 斯塔米卡邦有限公司 | 用于汽车环保尿素和硝酸铵尿素的尿素的一体化生产 |
| EP3325676B1 (en) | 2015-07-20 | 2019-12-18 | Stamicarbon B.V. | Duplex stainless steel and use thereof |
| CA3082032C (en) | 2017-11-10 | 2021-10-26 | Stamicarbon B.V. | Urea production process and plant |
-
2018
- 2018-11-09 CA CA3082032A patent/CA3082032C/en active Active
- 2018-11-09 US US16/186,410 patent/US10759745B2/en active Active
- 2018-11-09 MX MX2020004876A patent/MX2020004876A/es unknown
- 2018-11-09 EP EP18812399.6A patent/EP3707121B1/en active Active
- 2018-11-09 WO PCT/NL2018/050747 patent/WO2019093891A1/en unknown
- 2018-11-09 MY MYPI2020002245A patent/MY191504A/en unknown
- 2018-11-09 AU AU2018366077A patent/AU2018366077B2/en active Active
- 2018-11-09 CN CN201880071606.0A patent/CN111295370B/zh active Active
- 2018-11-09 EA EA202091171A patent/EA202091171A1/ru unknown
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2020
- 2020-07-24 US US16/937,976 patent/US10975022B2/en active Active
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2021
- 2021-05-06 HR HRP20210708TT patent/HRP20210708T1/hr unknown
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|---|---|
| MY191504A (en) | 2022-06-28 |
| US10975022B2 (en) | 2021-04-13 |
| CN111295370A (zh) | 2020-06-16 |
| EP3707121B1 (en) | 2021-04-21 |
| AU2018366077B2 (en) | 2021-07-08 |
| US20200361858A1 (en) | 2020-11-19 |
| AU2018366077A1 (en) | 2020-05-07 |
| CN111295370B (zh) | 2021-05-28 |
| EA202091171A1 (ru) | 2020-06-23 |
| US20190185422A1 (en) | 2019-06-20 |
| WO2019093891A1 (en) | 2019-05-16 |
| EP3707121A1 (en) | 2020-09-16 |
| CA3082032C (en) | 2021-10-26 |
| MX2020004876A (es) | 2021-09-28 |
| CA3082032A1 (en) | 2019-05-16 |
| US10759745B2 (en) | 2020-09-01 |
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