FprCEN/TS 17977
(Main)Gas infrastructure - Quality of gas - Hydrogen used in rededicated gas systems
Gas infrastructure - Quality of gas - Hydrogen used in rededicated gas systems
This document defines the quality of gaseous hydrogen, i.e. its parameters and limiting values, to be transmitted, injected into and extracted from storages, distributed and utilized in fully and/or partially rededicated gas infrastructure and connected applications in a safe way.
This document gives evidence to the end-user which minimum exit hydrogen quality can be expected and ensured from natural gas infrastructure as minimum requirement and without further purification.
NOTE 1 The rededicated gas infrastructure can include new parts of this infrastructure constructed/added after the conversion of the natural gas grid.
NOTE 2 It is expected that over time the hydrogen delivered through such pipework will improve in quality, e.g. due to the increase in share of high purity hydrogen produced by electrolysis This will be taken into account in further development of this document.
Gasinfrastruktur - Beschaffenheit von Gas - Wasserstoff zur Nutzung in umgestellten Gassystemen
No Scope Available
Infrastructures gazières - Qualité du gaz - Hydrogène utilisé dans des réseaux de gaz convertis
Le présent document définit la qualité de l’hydrogène gazeux (c’est-à-dire ses paramètres et ses valeurs limites) qui est destiné à être transporté, injecté dans les stockages, extrait des stockages, et distribué et utilisé dans les infrastructures gazières entièrement et/ou partiellement converties ainsi que dans les applications connectées, tout cela en toute sécurité.
Ce document apporte la preuve à l’utilisateur final de la qualité minimale d’hydrogène de sortie qui peut être attendue et assurée par l’infrastructure de gaz naturel comme exigence minimale et sans purification supplémentaire.
NOTE 1 L’infrastructure gazière convertie peut inclure toutes nouvelles parties de cette infrastructure construites/ajoutées après la conversion du réseau de gaz naturel.
NOTE 2 Il est prévu qu’au fil du temps, la qualité de l’hydrogène livré par ces canalisations s’améliore, par exemple en raison de l’augmentation de la part d’hydrogène de haute pureté produit par électrolyse. Il en sera tenu compte dans la suite de l’élaboration du présent document.
Infrastruktura za plin - Kakovost plina - Uporaba vodika v prilagojenih plinskih sistemih
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
kSIST-TS FprCEN/TS 17977:2023
01-junij-2023
[Not translated]
Gas infrastructure - Quality of gas - Hydrogen used in rededicated gas systems
Gasinfrastruktur - Beschaffenheit von Gas - Wasserstoff zur Nutzung in umgestellten
Gassystemen
Infrastructures gazières - Qualité du gaz - Hydrogène utilisé dans des réseaux de gaz
convertis
Ta slovenski standard je istoveten z: FprCEN/TS 17977
ICS:
27.075 Tehnologija vodika Hydrogen technologies
75.180.01 Oprema za industrijo nafte in Equipment for petroleum and
zemeljskega plina na splošno natural gas industries in
general
kSIST-TS FprCEN/TS 17977:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
kSIST-TS FprCEN/TS 17977:2023
---------------------- Page: 2 ----------------------
kSIST-TS FprCEN/TS 17977:2023
FINAL DRAFT
TECHNICAL SPECIFICATION
FprCEN/TS 17977
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
May 2023
ICS 27.075; 75.180.01
English Version
Gas infrastructure - Quality of gas - Hydrogen used in
rededicated gas systems
Infrastructures gazières - Qualité du gaz - Hydrogène Gasinfrastruktur - Beschaffenheit von Gas -
utilisé dans des réseaux de gaz convertis Wasserstoff zur Nutzung in umgestellten Gassystemen
This draft Technical Specification is submitted to CEN members for Vote. It has been drawn up by the Technical Committee
CEN/TC 234.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a Technical Specification. It is distributed for review and comments. It is subject to change
without notice and shall not be referred to as a Technical Specification.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TS 17977:2023 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
kSIST-TS FprCEN/TS 17977:2023
FprCEN/TS 17977:2023 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Reference conditions and pressure units Subclause title . 6
5 Requirements . 6
5.1 Requirements on constituents and contaminants . 6
Annex A (informative) Reasoning for the minimum content of 98 % hydrogen . 8
Annex B (informative) Development of hydrogen purity in rededicated infrastructure over
time . 9
Annex C (informative) Variations of Wobbe Index and Gross calorific value for hydrogen . 10
Annex D (informative) Data from Table 1 given in alternative units. 11
Bibliography . 12
2
---------------------- Page: 4 ----------------------
kSIST-TS FprCEN/TS 17977:2023
FprCEN/TS 17977:2023 (E)
European foreword
This document (FprCEN/TS 17977:2023) has been prepared by Technical Committee CEN/TC 234 “Gas
infrastructure”, the secretariat of which is held by DIN.
This document is currently submitted to the Vote on TS.
3
---------------------- Page: 5 ----------------------
kSIST-TS FprCEN/TS 17977:2023
FprCEN/TS 17977:2023 (E)
Introduction
This document for hydrogen in rededicated gas systems takes into account the condition of existing
piping with possible presence of liquid and solid deposits influencing the hydrogen quality.
Many parameters given in this document are deduced from EN 16726.
This document is the first edition and reflects the current situation, taking into account the existing grid.
It is expected that over time the hydrogen delivered through such pipework will improve in quality.
This will be taken into account in further development of the document.
This document is supposed to balance the requirements of gaseous hydrogen for the producer, the
different grid operators and the end-users, respectively in order to set- up a reliable backbone of future
energy supply which is (partly) based on using rededicated gas infrastructure. As a consequence, on-
site pre-treatment cannot be excluded for applications and/or processes with specific stringent
requirements.
The proposed parameters are verified by German project results (HyQual) which have been consulted
in combination with end-users' specifications [9]. In the project, different sources of hydrogen have
been evaluated, including pyrolysis, steam reforming, electrolysis (Chlorine-Alkaline process and water
electrolysis). Furthermore, the proposal takes biological hydrogen production process into account.
Also, the results of the Work Package 9 of the EC-CEN/GERG PNR project ‘Removing the technical
barriers to use of hydrogen in natural gas networks and for (natural) gas end users’ have been taken
into account.
This document supports the whole value chain (producers, system operators, other related services,
end-users) to produce, transport, store, deliver and/or use hydrogen in a possibly rededicated (or
adapted) natural gas infrastructure and connected applications in a safe way in the CEN member
countries and where applicable, without the risk to harm or damage the infrastructure or connected
user applications.
However, it is recognized that some end-users are sensitive to some gas quality parameters and
impurities. In these cases, purification measures can be needed, for upgrading the hydrogen quality.
This document supports the implementation of the hydrogen strategy on European and national level
and will accordingly facilitate the trade of hydrogen across entire Europe.
In the context of this document, the following aspects require close co-operation respectively co-
ordination with other TCs (CEN-CLC/JTC 6, CEN/TC 268, ISO/TC 197, TCs for equipment and
application):
— taking into account both natural gas systems and new built hydrogen systems;
— hydrogen qualities for fuel cell applications EN 17124:2018 (CEN/TC 268 WG 5, legally binding in
some countries, e.g. DE).
4
---------------------- Page: 6 ----------------------
kSIST-TS FprCEN/TS 17977:2023
FprCEN/TS 17977:2023 (E)
1 Scope
This document defines the quality of gaseous hydrogen, i.e. its parameters and limiting values, to be
transmitted, injected into and extracted from storages, distributed and utilized in fully and/or partially
rededicated gas infrastructure and connected applications in a safe way.
This document gives evidence to the end-user which minimum exit hydrogen quality can be expected
and ensured from natural gas infrastructure as minimum requirement and without further purification.
NOTE 1 The rededicated gas infrastructure can include new parts of this infrastructure constructed/added
after the conversion of the natural gas grid.
NOTE 2 It is expected that over time the hydrogen delivered through such pipework will improve in quality,
e.g. due to the increase in share of high purity hydrogen produced by electrolysis This will be taken into account in
further development of this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 13443, Natural gas - Standard reference conditions (ISO 13443)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
rededicated gas system
repurposed gas system
gas infrastructure originally used to convey or store gases of the first and second family which will be
used from the time of rededication for other fluids as e. g. hydrogen. It can include new parts of
infrastructure constructed/added after the conversion of the natural gas grid
Note 1 to entry: After a safety and reliability assessment the components of the infrastructure should be found
suited for conveying hydrogen.
3.2
hydrogen
gaseous hydrogen with a certain purity as described in Clause 5
Note 1 to entry: The definition is focussing the purpose of this document.
3.3
exit point
point at which gas leaves the gas transmission or distribution system for end-use
5
---------------------- Page: 7 ----------------------
kSIST-TS FprCEN/TS 17977:2023
FprCEN/TS 17977:2023 (E)
4 Reference conditions and pressure units Subclause title
Unless stated otherwise all volumes are given for the real dry gas at ISO s
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.