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FCEV-Independent Hydrogen Sampling Methodology and Purity Analysis with Ion-Molecule-Reaction Mass Spectrometry

Janßen, Holger and Kröner, Michael and Dyck, Alexander (2022) FCEV-Independent Hydrogen Sampling Methodology and Purity Analysis with Ion-Molecule-Reaction Mass Spectrometry. 772. WE-Heraeus Seminar, Metrology and Process Safety for Hydrogen Technologies & Applications, 10.-13. Okt. 2022, Bad Honnef, Deutschland.

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Abstract

Contaminations in hydrogen have a strong impact on the long-term stability and thereby performance of proton exchange membrane (PEM) based fuel cells for the application in fuel cell electric vehicles (FCEV). While these influences have been intensively studied, particularly the purity of the hydrogen provided at public hydrogen refueling stations (HRS) is rarely analyzed. We have taken samples of hydrogen at HRS with a specially designed mobile refueling module enabling the FCEV-independent sampling at 70 MPa. With a method specifically developed in this study, we seek to ensure that other sources of contamination can be excluded during the probe sampling. With analysis techniques able to determine concentrations of contaminants down to the parts per billion (ppb) level the hydrogen samples are investigated in the laboratory. While single routes of contamination, such as the synthesis route, have been individually studied in detail elsewhere, the provision of hydrogen with different storage processes, as well as transport and compression at the HRS are considered in these investigations as a holistic system. In the first approach series, HRS supplied by on-site electrolysis showed high purity as expected, in general, but also noteworthy contamination above the threshold of the international standard ISO 14687 in the form of water (19.23 ± 4.24 ppm), carbon dioxide (2.90 ± 0.09 ppm), and nitrogen (761.68 ± 22.72 ppm). With this study, it can be stated whether the dispensed hydrogen meets the high-quality requirements of fuel cells for mobile applications.

Item URL in elib:https://elib.dlr.de/188943/
Document Type:Conference or Workshop Item (Poster)
Title:FCEV-Independent Hydrogen Sampling Methodology and Purity Analysis with Ion-Molecule-Reaction Mass Spectrometry
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Janßen, HolgerHolger.Janssen (at) dlr.dehttps://orcid.org/0000-0003-0787-8724
Kröner, MichaelMichael.Kroener (at) dlr.dehttps://orcid.org/0000-0003-3646-001X
Dyck, AlexanderAlexander.Dyck (at) dlr.dehttps://orcid.org/0000-0002-5010-8226
Date:October 2022
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Hydrogen Refueling station Sampling methodology Purity analysis Contamination Quality
Event Title:772. WE-Heraeus Seminar, Metrology and Process Safety for Hydrogen Technologies & Applications
Event Location:Bad Honnef, Deutschland
Event Type:international Conference
Event Dates:10.-13. Okt. 2022
Organizer:Wilhelm und Else Heraeus-Stiftung
HGF - Research field:Energy
HGF - Program:Energy System Design
HGF - Program Themes:Digitalization and System Technology
DLR - Research area:Energy
DLR - Program:E SY - Energy System Technology and Analysis
DLR - Research theme (Project):E - Energy System Technology, E - Systems Analysis and Technology Assessment
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems > Urban and Residential Technologies
Deposited By: Janßen, Holger
Deposited On:14 Oct 2022 09:34
Last Modified:14 Oct 2022 09:34

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