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Solar Thermal Reforming

Agrafiotis, Christos and von Storch, Henrik and Roeb, Martin and Sattler, Christian (2016) Solar Thermal Reforming. In: Hydrogen Science and Engineering Wiley-VCH. pp. 151-172. ISBN 978-3-527-33238-0.

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Official URL: http://www.wiley-vch.de/publish/dt/books/specialOffer/3-527-33238-3/?sID=t8cdde91pbal4k4etc9v2hosm0


Virtually all hydrogen produced today is sourced from fossil fuels, with the principal method employed being the catalytic reforming of methane (CH4 , the principal component of natural gas and other gaseous fuels) [1]. Two different reactions can be distinguished in the methane reforming process: steam methane reforming (SMR) and C02 (or dry) methane reforming (DMR), represented by Eqs. (8.1) and (8.2) respectively: CH4 + H20 ~ 3 H2 +COD.H~98 K = +206 kJ 11101-I(8.1) CH,1 + C02 ~ 2 H2 + 2 CO; D.H~98 K = +247 kJ mol- 1; (8.2) Both reactions are highly endothermic, and are, thus, favored by high temperatures; industrial reforming processes are carried out between · 800 and 1000 °C [1 ]. The required energy is supplied by combustion of additional natural gas and process waste gas from the downstream hydrogen purification step. The share of natural gas consumed as fuel varies from 3% to 20% of the total plant's natural gas consumption [2]. The reaction gas product mixture is known as Synthesis gas (syngas): a gas mixture that contains varying amounts of CO and H2 whose exothermic conversion into fuel and other products has long been commercially practiced, for example, via the Fischer-Tropsch technology [3]. In fact hydrogen and syngas are the basic raw materials to produce synthetic liquid fuels (SLFs) and chemicals via industrially available processes.

Item URL in elib:https://elib.dlr.de/103224/
Document Type:Book Section
Title:Solar Thermal Reforming
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Agrafiotis, Christoschristos.agrafiotis (at) dlr.deUNSPECIFIED
von Storch, Henrikhenrik.vonStorch (at) dlr.deUNSPECIFIED
Roeb, MartinMartin.roeb (at) dlr.deUNSPECIFIED
Sattler, Christianchristian.sattler (at) dlr.deUNSPECIFIED
Date:25 February 2016
Journal or Publication Title:Hydrogen Science and Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 151-172
EditorsEmailEditor's ORCID iD
Stolten, Detlefd.stolten@fz-juelich.deUNSPECIFIED
Emonts, Berndb.emonts@fz-juelich.deUNSPECIFIED
Keywords:hydrogen, steam reforming, dry reforming, natural gas, solar, concentrated solar, solar thermal
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Solar Fuels
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solar Fuels (old)
Location: Jülich , Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solare Verfahrenstechnik
Deposited By: Sattler, Prof. Dr. Christian
Deposited On:14 Mar 2016 15:24
Last Modified:14 Mar 2016 15:24

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