elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Structured sulphur trioxide splitting catalytic systems and allothermally-heated reactors for the implementation of Sulphur-based thermochemical cycles via a centrifugal solar particle receiver

Agrafiotis, Christos and Thomey, Dennis and de Oliveira, Lamark and Karagiannakis, George and Tsongidis, Nikolaos I. and Pagkoura, Chrysoula and Alkan, Gözde and Roeb, Martin and Sattler, Christian (2022) Structured sulphur trioxide splitting catalytic systems and allothermally-heated reactors for the implementation of Sulphur-based thermochemical cycles via a centrifugal solar particle receiver. Applied Catalysis B: Environmental, 324, p. 122197. Elsevier. doi: 10.1016/j.apcatb.2022.122197. ISSN 0926-3373.

[img] PDF - Only accessible within DLR - Published version
18MB

Official URL: https://dx.doi.org/10.1016/j.apcatb.2022.122197

Abstract

Catalytic sulphur trioxide splitting is the highest-temperature (850–900 °C), endothermic step of several sulphur-based thermochemical cycles targeted to production of hydrogen or solid sulphur. The demonstrated capability of centrifugal particle solar receivers of heating particle streams at such temperatures, can allow for “allothermal” implementation of this step via the enthalpy of such particle streams in a catalytic shell-and-tube reactor/heat exchanger decoupled from a solar receiver. In this context, SO3 splitting catalytic systems shaped to spherical particles and flow-through honeycombs and foams were prepared and tested. Long-term (100–950 h) experiments with catalyst-coated SiC honeycombs demonstrated that oxide-supported Pt catalysts suffered from low conversion and severe deactivation at 650 °C, contrary to Fe2O3-coated ones. Fe2O3-coated SiC foams demonstrated reproducible near-equilibrium conversion at 850 °C, under a broad range of sulphuric acid flow rates, combined with minute pressure drop even under high catalyst loadings (35–45 wt %) being thus in principle suitable for eventual pressurized operation.

Item URL in elib:https://elib.dlr.de/197589/
Document Type:Article
Title:Structured sulphur trioxide splitting catalytic systems and allothermally-heated reactors for the implementation of Sulphur-based thermochemical cycles via a centrifugal solar particle receiver
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Agrafiotis, ChristosUNSPECIFIEDhttps://orcid.org/0000-0002-7140-9642UNSPECIFIED
Thomey, DennisUNSPECIFIEDhttps://orcid.org/0000-0001-6936-3350143022305
de Oliveira, LamarkUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Karagiannakis, GeorgeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tsongidis, Nikolaos I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pagkoura, ChrysoulaUNSPECIFIEDhttps://orcid.org/0000-0001-6089-4921UNSPECIFIED
Alkan, GözdeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Roeb, MartinUNSPECIFIEDhttps://orcid.org/0000-0002-9813-5135UNSPECIFIED
Sattler, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-4314-1124UNSPECIFIED
Date:19 November 2022
Journal or Publication Title:Applied Catalysis B: Environmental
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:324
DOI:10.1016/j.apcatb.2022.122197
Page Range:p. 122197
Publisher:Elsevier
ISSN:0926-3373
Status:Published
Keywords:Sulphur trioxide splitting Iron oxide catalysts Structured reactors Sulphur thermochemical cycles Concentrated solar energy
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Chemical Energy Carriers
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Solar Fuels
Location: Jülich
Institutes and Institutions:Institute of Future Fuels
Institute of Materials Research
Deposited By: Thomey, Dennis
Deposited On:26 Sep 2023 11:25
Last Modified:26 Sep 2023 11:25

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.