Innovative power-to-gas plant concepts for upgrading of gasification bio-syngas through steam electrolysis and catalytic methanation

Anghilante, Régis; Müller, Christian; Schmid, Max; Colomar, David; Ortloff, Felix; Spörl, Reinhold; Brisse, Annabelle; Graf, Frank

doi:10.1016/j.enconman.2018.12.101

Cited by 48 publications

(19 citation statements)

References 66 publications

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“…Therefore, the CO 2 content of the product gas can also be used as a carbon source for the synthesis process. To reach appropriate H 2 -to-(CO + CO 2 ) ratios for different synthesis, an additional hydrogen input from electrolysis has been proposed [105][106][107].…”

Section: Temperature Variationmentioning

confidence: 99%

Syngas for biorefineries from thermochemical gasification of lignocellulosic fuels and residues—5 years’ experience with an advanced dual fluidized bed gasifier design

Schmid

Benedikt

Fuchs

et al. 2019

Biomass Conv. Bioref.

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In many processes proposed for biorefineries, recycling procedures, and industrial or agricultural production processes, residue is generated which could be further transformed by thermochemical conversion via gasification. The technology of dual fluidized bed steam gasification is capable of producing a valuable product gas out of such residue. The generated nitrogen-free product gas can be used for heat and power production and is suitable for separating gases (e.g. hydrogen). However, if the product gas is cleaned, its use as syngas is more beneficial for manufacturing renewable chemical substances, like synthetic natural gas, methanol, Fischer-Tropsch liquids, or mixed alcohols. This paper presents the results of experimental research from gasification test runs of different biogenic fuels, carried out with an advanced 100 kW pilot plant over the last 5 years at TU Wien. The focus is to provide an overview of measured results validated by mass and energy balances and to present key calculated performance indicating key figures of the test runs. In this way, the influence of various operational parameters and the composition of the product gas are evaluated. The presented results form the basis for the proper design of suitable gas-cleaning equipment. Subsequently, the clean syngas is available for several synthesis applications in future biorefineries.

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Section: Temperature Variationmentioning

confidence: 99%

Syngas for biorefineries from thermochemical gasification of lignocellulosic fuels and residues—5 years’ experience with an advanced dual fluidized bed gasifier design

Schmid

Benedikt

Fuchs

et al. 2019

Biomass Conv. Bioref.

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“…Es wird zwischen der Produktion von Bio‐CNG und Bio‐LNG und den Einsatzstoffen unterschieden sowie einem Referenzfall, bei dem anstatt der in Res2CNG untersuchten innovativen Technologien Prozesse nach dem aktuellen Stand der Technik betrachtet wurden. .…”

Section: Prozesskettenentwicklungunclassified

“…In Kette 2 und 3 wird eine SOEC‐Anlage bei 20 bar zur Wasserstoffproduktion genutzt. Der Wirkungsgrad des Gleichrichters wird zu 96 % angenommen . In Prozesskette 1 wird als Methanisierungsverfahren eine Festbettkaskade mit Zwischenkühlung und ‐kondensation, angelehnt an den TREMP™‐Prozess der Firma Haldor Topsoe, verwendet , .…”

Section: Prozesskettenentwicklungunclassified

CNG und LNG aus biogenen Reststoffen – ein Konzept zur ressourcenschonenden Kraftstoffproduktion

Müller

Anghilante

Schmid

et al. 2019

Chemie Ingenieur Technik

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Es wurde ein Verfahren entwickelt, das die Umwandlung von Reststoffen zu methanbasierten Kraftstoffen unter höchstmöglichem Erhalt des biogenen Kohlenstoffs mithilfe von elektrischer Energie aus erneuerbaren Quellen ermöglicht. Waldrestholz, Stroh und Klärschlamm wurden als besonders relevante Einsatzstoffe identifiziert. Durch die hochintegrierte Kopplung von Vergasung, Hochtemperaturelektrolyse und Methanisierung wird der biogene Kohlenstoff aus den Edukten nahezu vollständig in das Produkt Methan überführt. Die Gestehungskosten sind dabei mit denen gegenwärtig eingesetzter Technologien vergleichbar und liegen bei Großanlagen im Bereich üblicher Werte der Biomethanerzeugung.A highly integrated process for the conversion of biogenic residues in combination with electricity from renewable sources to methane-based fuels was developed. Forest residues, straw and sewage sludge were identified as particularly relevant input feedstock. By combining gasification, high-temperature electrolysis and catalytic methanation, the biogenic carbon remains almost completely in the products. The matching temperature levels of the heat streams result in a very efficient process. The production costs are comparable to less resource-saving technologies and predictably lower than those of biomethane when plant capacities are increased.

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“…Syngas could be produced from abundant waste and reduce its negative impact on the environment. Syngas is used in various industries as a byproduct of the CNG/LNG production [18] and vehicle fuel [19]. Syngas has lower environmental impact compared with the conventional NG combustion [20].…”

Section: Introductionmentioning

confidence: 99%

“…Additional concepts of utilizing syngas in energy production are being developed. Anghilante et al [18] presented several power-to-SNG plant concepts for upgrading bio-syngas to LNG or CNG through steam electrolysis and catalytic methanation process. The sewage sludge (SS), wood and straw, was used in the process of obtaining LNG.…”

Section: Introductionmentioning

confidence: 99%

Valorization of Sewage Sludge via Gasification and Transportation of Compressed Syngas

et al. 2019

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A significant challenge in the utilization of alternative gaseous fuels is to use their energy potential at the desired location, considering economic feasibility and sustainability. A potential solution is a compression, transportation in pressure tanks, and generation of electricity and heat directly at the recipient. In this research, the potential for generating syngas from abundant waste substrates was analyzed. The sewage sludge (SS) was used as an example of a bulky and abundant resource that could be valorized via gasification, compression, and transport to end-users in containers. A model was developed, and theoretical analyses were completed to examine the influence of the calorific value of the syngas produced from the SS gasification (under different temperatures and gasifying agents) on the efficiency of energy transportation of compressed syngas. First, the gasification simulation was carried out, assuming equilibrium in a downdraft gasifier (reactor) from 973–1473 K and five gasifying agents (O2, H2, CO2, water vapor, and air). Molar ratios of the gasifying agents to the (SS) C ranged from 0.1–1.0. The model predicted syngas composition, lower calorific values (LHV) for a given molar ratio of the gasification agent, and compressibility factor. It was shown that the highest LHV was obtained at 0.1 molar ratio for all gasifier agents. The highest LHV (~20 MJ∙(Nm3)−1) was obtained by gasification with H2 and the lowest (~13 MJ∙(Nm3)−1) in the case of air. Next, the available syngas volume in a compressed gas transportation unit and the stored energy was estimated. The largest syngas volume can be transported when O2 is used as a gasifying agent, but the highest amount of transported energy was estimated for gasification with H2. Finally, the techno-economic analyses showed that syngas from SS could be competitive when the energy of compressed syngas is compared with the demand of an average residential dwelling. The developed syngas energy transport system (SETS) concept proposes a new method to distribute compressed syngas in pressure tanks to end-users using all modes of transport carrying intermodal ISO containers. Future work should include the determination of energy demand for syngas compression, including pressure losses, heat losses, and analysis of the influence of syngas on storage and compression devices.

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Innovative power-to-gas plant concepts for upgrading of gasification bio-syngas through steam electrolysis and catalytic methanation

Cited by 48 publications

References 66 publications

Syngas for biorefineries from thermochemical gasification of lignocellulosic fuels and residues—5 years’ experience with an advanced dual fluidized bed gasifier design

Syngas for biorefineries from thermochemical gasification of lignocellulosic fuels and residues—5 years’ experience with an advanced dual fluidized bed gasifier design

CNG und LNG aus biogenen Reststoffen – ein Konzept zur ressourcenschonenden Kraftstoffproduktion

Valorization of Sewage Sludge via Gasification and Transportation of Compressed Syngas

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