Co-production of pure hydrogen, carbon dioxide and nitrogen in a 10 kW fixed-bed chemical looping system

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The transition of our current carbon-based economy towards a sustainable energy system poses major challenges for all stakeholders. Harmful carbon dioxide emissions have to be substantially decreased and even negative emissions are mandatory to avoid a global mean temperature rise above 2°C unless stringent regulatory measures are taken within the next decade. Chemical looping is a promising method to sequestrate pure carbon dioxide from fossil and renewable energy resources within the framework of carbon capture and storage (CCS) or utilization (CCU) technologies. The presented study demonstrates the generation of high-purity hydrogen exceeding 99.997% as zero-emission energy carrier with the inherent co-generation of pure carbon dioxide (99%) and nitrogen (98.5%) in the largest fixed-bed chemical looping research system worldwide. The feedstock utilization of up to 60% in the context of pure hydrogen generation is highly competitive compared to other systems for decentralized hydrogen generation with the benefit of inherent carbon dioxide sequestration. The use of renewable primary energy sources as biogas qualifies the process as a negative emission technology (NET) if carbon dioxide is appropriately utilized.
Original languageEnglish
JournalSustainable Energy & Fuels
DOIs
Publication statusPublished - 2 Jan 2020

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Carbon dioxide
Nitrogen
Hydrogen
Renewable energy resources
Carbon capture
Biogas
Feedstocks
Carbon
Temperature

Keywords

  • Chemical Looping
  • Steam Iron Process
  • Hydrogen production
  • Hydrogen
  • Biogas
  • Carbon capture

Fields of Expertise

  • Mobility & Production

Cite this

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title = "Co-production of pure hydrogen, carbon dioxide and nitrogen in a 10 kW fixed-bed chemical looping system",
abstract = "The transition of our current carbon-based economy towards a sustainable energy system poses major challenges for all stakeholders. Harmful carbon dioxide emissions have to be substantially decreased and even negative emissions are mandatory to avoid a global mean temperature rise above 2°C unless stringent regulatory measures are taken within the next decade. Chemical looping is a promising method to sequestrate pure carbon dioxide from fossil and renewable energy resources within the framework of carbon capture and storage (CCS) or utilization (CCU) technologies. The presented study demonstrates the generation of high-purity hydrogen exceeding 99.997{\%} as zero-emission energy carrier with the inherent co-generation of pure carbon dioxide (99{\%}) and nitrogen (98.5{\%}) in the largest fixed-bed chemical looping research system worldwide. The feedstock utilization of up to 60{\%} in the context of pure hydrogen generation is highly competitive compared to other systems for decentralized hydrogen generation with the benefit of inherent carbon dioxide sequestration. The use of renewable primary energy sources as biogas qualifies the process as a negative emission technology (NET) if carbon dioxide is appropriately utilized.",
keywords = "Chemical Looping, Steam Iron Process, Hydrogen production, Hydrogen, Biogas, Carbon capture",
author = "Sebastian Bock and Robert Zacharias and Viktor Hacker",
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language = "English",
journal = "Sustainable Energy & Fuels",
issn = "2398-4902",
publisher = "Royal Society of Chemistry",

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AU - Bock, Sebastian

AU - Zacharias, Robert

AU - Hacker, Viktor

PY - 2020/1/2

Y1 - 2020/1/2

N2 - The transition of our current carbon-based economy towards a sustainable energy system poses major challenges for all stakeholders. Harmful carbon dioxide emissions have to be substantially decreased and even negative emissions are mandatory to avoid a global mean temperature rise above 2°C unless stringent regulatory measures are taken within the next decade. Chemical looping is a promising method to sequestrate pure carbon dioxide from fossil and renewable energy resources within the framework of carbon capture and storage (CCS) or utilization (CCU) technologies. The presented study demonstrates the generation of high-purity hydrogen exceeding 99.997% as zero-emission energy carrier with the inherent co-generation of pure carbon dioxide (99%) and nitrogen (98.5%) in the largest fixed-bed chemical looping research system worldwide. The feedstock utilization of up to 60% in the context of pure hydrogen generation is highly competitive compared to other systems for decentralized hydrogen generation with the benefit of inherent carbon dioxide sequestration. The use of renewable primary energy sources as biogas qualifies the process as a negative emission technology (NET) if carbon dioxide is appropriately utilized.

AB - The transition of our current carbon-based economy towards a sustainable energy system poses major challenges for all stakeholders. Harmful carbon dioxide emissions have to be substantially decreased and even negative emissions are mandatory to avoid a global mean temperature rise above 2°C unless stringent regulatory measures are taken within the next decade. Chemical looping is a promising method to sequestrate pure carbon dioxide from fossil and renewable energy resources within the framework of carbon capture and storage (CCS) or utilization (CCU) technologies. The presented study demonstrates the generation of high-purity hydrogen exceeding 99.997% as zero-emission energy carrier with the inherent co-generation of pure carbon dioxide (99%) and nitrogen (98.5%) in the largest fixed-bed chemical looping research system worldwide. The feedstock utilization of up to 60% in the context of pure hydrogen generation is highly competitive compared to other systems for decentralized hydrogen generation with the benefit of inherent carbon dioxide sequestration. The use of renewable primary energy sources as biogas qualifies the process as a negative emission technology (NET) if carbon dioxide is appropriately utilized.

KW - Chemical Looping

KW - Steam Iron Process

KW - Hydrogen production

KW - Hydrogen

KW - Biogas

KW - Carbon capture

U2 - 10.1039/C9SE00980A

DO - 10.1039/C9SE00980A

M3 - Article

JO - Sustainable Energy & Fuels

JF - Sustainable Energy & Fuels

SN - 2398-4902

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