The production of pressurized, high purity hydrogen with the fixed bed RESC process

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Abstract

High pressure hydrogen production with a fixed-chemical looping system was recently shown in a lab-scale test bench. A release pressure of up to 50 bar was enabled directly from the fixed-bed system. In addition, a prototype system with an enhanced layout was developed and operated with synthetic biogas and methane steam reforming mixtures. A series of experiments was conducted to improve the feasible hydrogen purity exceeding 99.999% regarding total carbonaceous impurities. The hydrogen output was up to 10 kWLHV. The design includes a combined high-temperature reactor with a steam reformer and a chemical looping section for hydrogen purification, comprising of up to 18 kg iron-oxide based oxygen carrier material. In the chemical looping section, significant influences of the exothermic oxidation and endothermic reduction reaction are illustrated with axial and radial temperature profiles.
Originalspracheenglisch
TitelChemical Looping 2018
KapitelHydrogen Production 2
Seitenumfang5
PublikationsstatusVeröffentlicht - 24 Sep 2018
Veranstaltung5th International Conference on Chemical Looping - The Chateaux at Deer Valley, Park City, USA / Vereinigte Staaten
Dauer: 24 Sep 201827 Sep 2018

Konferenz

Konferenz5th International Conference on Chemical Looping
KurztitelChemical Looping 2018
LandUSA / Vereinigte Staaten
OrtPark City
Zeitraum24/09/1827/09/18

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Hydrogen
High temperature reactors
Steam reforming
Biogas
Hydrogen production
Iron oxides
Purification
Steam
Impurities
Oxidation
Oxygen
Experiments
Temperature

Fields of Expertise

  • Mobility & Production

Dies zitieren

The production of pressurized, high purity hydrogen with the fixed bed RESC process. / Bock, Sebastian; Zacharias, Robert; Hacker, Viktor.

Chemical Looping 2018. 2018. 4C.

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Bock, S, Zacharias, R & Hacker, V 2018, The production of pressurized, high purity hydrogen with the fixed bed RESC process. in Chemical Looping 2018., 4C, Park City, USA / Vereinigte Staaten, 24/09/18.
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AB - High pressure hydrogen production with a fixed-chemical looping system was recently shown in a lab-scale test bench. A release pressure of up to 50 bar was enabled directly from the fixed-bed system. In addition, a prototype system with an enhanced layout was developed and operated with synthetic biogas and methane steam reforming mixtures. A series of experiments was conducted to improve the feasible hydrogen purity exceeding 99.999% regarding total carbonaceous impurities. The hydrogen output was up to 10 kWLHV. The design includes a combined high-temperature reactor with a steam reformer and a chemical looping section for hydrogen purification, comprising of up to 18 kg iron-oxide based oxygen carrier material. In the chemical looping section, significant influences of the exothermic oxidation and endothermic reduction reaction are illustrated with axial and radial temperature profiles.

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