WO2010094396A3 - Verfahren zum abtrennen von stickstoff - Google Patents

Verfahren zum abtrennen von stickstoff Download PDF

Info

Publication number
WO2010094396A3
WO2010094396A3 PCT/EP2010/000613 EP2010000613W WO2010094396A3 WO 2010094396 A3 WO2010094396 A3 WO 2010094396A3 EP 2010000613 W EP2010000613 W EP 2010000613W WO 2010094396 A3 WO2010094396 A3 WO 2010094396A3
Authority
WO
WIPO (PCT)
Prior art keywords
fraction
rich
nitrogen
feed
methane
Prior art date
Application number
PCT/EP2010/000613
Other languages
English (en)
French (fr)
Other versions
WO2010094396A2 (de
Inventor
Heinz Bauer
Rainer Sapper
Georg Schopfer
Daniel Garthe
Original Assignee
Linde Aktiengesellschaft
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 Linde Aktiengesellschaft filed Critical Linde Aktiengesellschaft
Priority to RU2011138229/06A priority Critical patent/RU2011138229A/ru
Priority to US13/202,101 priority patent/US20120017640A1/en
Priority to AU2010214861A priority patent/AU2010214861A1/en
Priority to MX2011008233A priority patent/MX2011008233A/es
Publication of WO2010094396A2 publication Critical patent/WO2010094396A2/de
Priority to NO20111247A priority patent/NO20111247A1/no
Publication of WO2010094396A3 publication Critical patent/WO2010094396A3/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
    • F25J3/0209—Natural gas or substitute natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0233—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 1 carbon atom or more
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0257—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/04—Processes or apparatus using separation by rectification in a dual pressure main column system
    • F25J2200/06—Processes or apparatus using separation by rectification in a dual pressure main column system in a classical double column flow-sheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/72—Refluxing the column with at least a part of the totally condensed overhead gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/78—Refluxing the column with a liquid stream originating from an upstream or downstream fractionator column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/04—Mixing or blending of fluids with the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/42—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/60—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being hydrocarbons or a mixture of hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/60—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being (a mixture of) hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2280/00—Control of the process or apparatus
    • F25J2280/20—Control for stopping, deriming or defrosting after an emergency shut-down of the installation or for back up system

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

Es wird ein Verfahren zum Abtrennen einer Stickstoff-reichen Fraktion aus einer im Wesentlichen Stickstoff und Kohlenwasserstoffe enthaltenden Einsatzfraktion, wobei die Einsatzfraktion rektifikatorisch in eine Stickstoff-reiche und eine Methan-reiche Fraktion aufgetrennt wird, beschrieben. Erfindungsgemäß werden während einer Unterbrechung der Zuführung der Einsatzfraktion zumindest zeitweilig die Stickstoff-reiche (4") und die Methan-reiche Fraktion (5") verdichtet und gemeinsam dem Verfahren als Einsatzfraktion zugeführt, wobei die Verdichtung der Stickstoff-reichen (4") und der Methan-reichen Fraktion (5") getrennt und/oder gemeinsam erfolgen kann.
PCT/EP2010/000613 2009-02-19 2010-02-02 Verfahren zum abtrennen von stickstoff WO2010094396A2 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
RU2011138229/06A RU2011138229A (ru) 2009-02-19 2010-02-02 Способ удаления азота
US13/202,101 US20120017640A1 (en) 2009-02-19 2010-02-02 Process for separating off nitrogen
AU2010214861A AU2010214861A1 (en) 2009-02-19 2010-02-02 Method for removing nitrogen
MX2011008233A MX2011008233A (es) 2009-02-19 2010-02-02 Metodo para separar nitrogeno.
NO20111247A NO20111247A1 (no) 2009-02-19 2011-09-14 Fremgangsmate for fjerning av nitrogen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009009477.6 2009-02-19
DE102009009477A DE102009009477A1 (de) 2009-02-19 2009-02-19 Verfahren zum Abtrennen von Stickstoff

Publications (2)

Publication Number Publication Date
WO2010094396A2 WO2010094396A2 (de) 2010-08-26
WO2010094396A3 true WO2010094396A3 (de) 2013-04-18

Family

ID=42356594

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/000613 WO2010094396A2 (de) 2009-02-19 2010-02-02 Verfahren zum abtrennen von stickstoff

Country Status (7)

Country Link
US (1) US20120017640A1 (de)
AU (1) AU2010214861A1 (de)
DE (1) DE102009009477A1 (de)
MX (1) MX2011008233A (de)
NO (1) NO20111247A1 (de)
RU (1) RU2011138229A (de)
WO (1) WO2010094396A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3012211B1 (fr) * 2013-10-18 2018-11-02 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procede de deazotation du gaz naturel avec ou sans recuperation d'helium
FR3013818A1 (fr) * 2013-11-25 2015-05-29 Air Liquide Appareil de separation d’air par distillation cryogenique et procede de maintien en froid d’un tel appareil
FR3034427B1 (fr) * 2015-04-01 2020-01-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procede de desazotation du gaz naturel
FR3110223A1 (fr) * 2020-05-15 2021-11-19 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé d’extraction d'azote d'un courant de gaz naturel ou de bio-méthane

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919932A1 (de) * 1999-04-30 2000-11-02 Linde Ag Verfahren zum Gewinnen einer Reinmethanfraktion
WO2002088612A1 (de) * 2001-05-02 2002-11-07 Linde Aktiengesellschaft Verfahren zum abtrennen von stickstoff aus einer stickstoff-enthaltenden, kohlenwasserstoff-reichen fraktion
US20040200224A1 (en) * 2001-05-23 2004-10-14 Jean-Marc Peyron Method and installation for feeding an air separation plant with a gas turbine
WO2008017786A2 (fr) * 2006-08-09 2008-02-14 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Unité et procédé de déazotation de gaz naturel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7484385B2 (en) * 2003-01-16 2009-02-03 Lummus Technology Inc. Multiple reflux stream hydrocarbon recovery process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919932A1 (de) * 1999-04-30 2000-11-02 Linde Ag Verfahren zum Gewinnen einer Reinmethanfraktion
WO2002088612A1 (de) * 2001-05-02 2002-11-07 Linde Aktiengesellschaft Verfahren zum abtrennen von stickstoff aus einer stickstoff-enthaltenden, kohlenwasserstoff-reichen fraktion
US20040200224A1 (en) * 2001-05-23 2004-10-14 Jean-Marc Peyron Method and installation for feeding an air separation plant with a gas turbine
WO2008017786A2 (fr) * 2006-08-09 2008-02-14 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Unité et procédé de déazotation de gaz naturel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DAVIS R A ET AL: "PLANT DESIGN INTEGRATES NGL RECOVERY, N2 REJECTION", OIL AND GAS JOURNAL, PENNWELL, HOUSTON, TX, US, vol. 87, no. 45, 6 November 1989 (1989-11-06), pages 33 - 39, XP000088075, ISSN: 0030-1388 *
PRUITT C A ET AL: "Wyoming's shute creek plant uses NRU unit", OIL AND GAS JOURNAL, PENNWELL, HOUSTON, TX, US, vol. 87, no. 41, 1 January 1989 (1989-01-01), pages 78 - 82, XP001074162, ISSN: 0030-1388 *

Also Published As

Publication number Publication date
AU2010214861A1 (en) 2011-08-18
RU2011138229A (ru) 2013-03-27
MX2011008233A (es) 2011-08-17
US20120017640A1 (en) 2012-01-26
NO20111247A1 (no) 2011-09-14
WO2010094396A2 (de) 2010-08-26
DE102009009477A1 (de) 2010-08-26

Similar Documents

Publication Publication Date Title
EP2422152B8 (de) Verfahren zur herstellung eines methanreichen stroms und einer c2+-kohlenwasserstoffreichen fraktion aus einem erdgaseinsatzstrom und entsprechende einrichtung
BRPI1006066A2 (pt) processo para separar pelo menos parte de um produto gasoso, dispositivo de separação criogênica para realizar o processo, corrente purificada, e, processo para liquefazer uma corrente de alimentação.
SG178989A1 (en) Hydrocarbon gas processing
WO2008104308A3 (de) Verfahren zum abtrennen von stickstoff aus verflüssigtem erdgas
WO2011009832A3 (en) Method for treating a multi-phase hydrocarbon stream and an apparatus therefor
WO2011090613A3 (en) Process for removing nitrogen from vacuum gas oil
WO2008076210A3 (en) Advanced c2-splitter feed rectifier
EP2310474A4 (de) Verfahren zur abtrennung von 1,3-butadien aus einem rohen c4-strom mit acetylenkonverter
WO2012003358A3 (en) Methods and systems for recovering liquified petroleum gas from natural gas
MX2007005350A (es) Despachador separador de laminas y metodo de uso.
WO2013087571A3 (en) Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition
WO2006130715A3 (en) System and method for separating tellurium waste
WO2008009433A3 (en) Method and apparatus for reducing metalliferous material to a reduction product
WO2010094396A3 (de) Verfahren zum abtrennen von stickstoff
WO2012075993A3 (de) VERFAHREN ZUM HERSTELLEN EINER AlScCa-LEGIERUNG SOWIE AIScCa-LEGIERUNG
WO2008107562A3 (fr) Procede de separation
WO2007032981A3 (en) Enhanced heavies removal/lpg recovery process for lng facilities
WO2009132113A3 (en) Dross removal
WO2013087570A3 (en) Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition
WO2008008335A3 (en) Configurations and methods for rich gas conditioning for ngl recovery
WO2011056712A3 (en) Apparatus and process for recovering fcc product
IL206422A (en) A multi-page serial separation process for separating ionic metal derivative
MY161551A (en) Separating olefin streams
HK1077334A1 (en) A separation process
WO2012082785A3 (en) Devices, systems, and methods for recovery and recycling of carpet components

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10702832

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 2010214861

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: MX/A/2011/008233

Country of ref document: MX

ENP Entry into the national phase

Ref document number: 2010214861

Country of ref document: AU

Date of ref document: 20100202

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2011138229

Country of ref document: RU

WWE Wipo information: entry into national phase

Ref document number: 13202101

Country of ref document: US

122 Ep: pct application non-entry in european phase

Ref document number: 10702832

Country of ref document: EP

Kind code of ref document: A2