Innovative electroscrubbing process for biogas impurity removal

Sebastian Borgquist; Sebastian Nis Bay Villadsen; Jens Abildskov; Christian Warm; Per Gravers Kristensen; Kristoffer Moos; Rodrigo Rivera Tinoco; Philip Loldrup Fosbøl

doi:10.1016/j.seppur.2024.128677

Innovative electroscrubbing process for biogas impurity removal

Sebastian Borgquist^*, Sebastian Nis Bay Villadsen, Jens Abildskov, Christian Warm, Per Gravers Kristensen, Kristoffer Moos, Rodrigo Rivera Tinoco, Philip Loldrup Fosbøl

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

A new biogas cleaning technology was tested at the Hashøj Biogas facility in Denmark. The new technology is a PtX process which consumes only electricity to clean the biogas. The process was capable of removing a wide variety of sulfur components, most notably hydrogen sulfide and mercaptans. Additionally, a variety of volatile organic compounds (VOC) such as terpenes and benzenes were removed. Overall, the process was found to remove 99.96 % of sulfur species in the biogas alongside 94.77 % of the measured VOC. With a polishing step the biogas will be ready for use either as a substitute for natural gas, or for PtX upgrading into e.g. methanol. The purity of the hydrogen produced by the setup was found to be 98.75 %. With the implementation of a small carbon filter, it could be possible to utilize the hydrogen in either fuel cells or for gas-to-liquid purposes.

Original language	English
Article number	128677
Journal	Separation and Purification Technology
Volume	354
Number of pages	12
ISSN	1383-5866
DOIs	https://doi.org/10.1016/j.seppur.2024.128677
Publication status	Published - 2025

Keywords

Biogas cleaning
Electrochemistry
Gas scrubbing
Power-to-X (PtX)
VOC removal

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@article{4935399358474a4d8a2e8cb263fb9782,

title = "Innovative electroscrubbing process for biogas impurity removal",

abstract = "A new biogas cleaning technology was tested at the Hash{\o}j Biogas facility in Denmark. The new technology is a PtX process which consumes only electricity to clean the biogas. The process was capable of removing a wide variety of sulfur components, most notably hydrogen sulfide and mercaptans. Additionally, a variety of volatile organic compounds (VOC) such as terpenes and benzenes were removed. Overall, the process was found to remove 99.96 % of sulfur species in the biogas alongside 94.77 % of the measured VOC. With a polishing step the biogas will be ready for use either as a substitute for natural gas, or for PtX upgrading into e.g. methanol. The purity of the hydrogen produced by the setup was found to be 98.75 %. With the implementation of a small carbon filter, it could be possible to utilize the hydrogen in either fuel cells or for gas-to-liquid purposes.",

keywords = "Biogas cleaning, Electrochemistry, Gas scrubbing, Power-to-X (PtX), VOC removal",

author = "Sebastian Borgquist and {Nis Bay Villadsen}, Sebastian and Jens Abildskov and Christian Warm and {Gravers Kristensen}, Per and Kristoffer Moos and {Rivera Tinoco}, Rodrigo and {Loldrup Fosb{\o}l}, Philip",

note = "Publisher Copyright: {\textcopyright} 2024 The Authors",

year = "2025",

doi = "10.1016/j.seppur.2024.128677",

language = "English",

volume = "354",

journal = "Separation and Purification Technology",

issn = "1383-5866",

publisher = "Pergamon Press",

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TY - JOUR

T1 - Innovative electroscrubbing process for biogas impurity removal

AU - Borgquist, Sebastian

AU - Nis Bay Villadsen, Sebastian

AU - Abildskov, Jens

AU - Warm, Christian

AU - Gravers Kristensen, Per

AU - Moos, Kristoffer

AU - Rivera Tinoco, Rodrigo

AU - Loldrup Fosbøl, Philip

PY - 2025

Y1 - 2025

N2 - A new biogas cleaning technology was tested at the Hashøj Biogas facility in Denmark. The new technology is a PtX process which consumes only electricity to clean the biogas. The process was capable of removing a wide variety of sulfur components, most notably hydrogen sulfide and mercaptans. Additionally, a variety of volatile organic compounds (VOC) such as terpenes and benzenes were removed. Overall, the process was found to remove 99.96 % of sulfur species in the biogas alongside 94.77 % of the measured VOC. With a polishing step the biogas will be ready for use either as a substitute for natural gas, or for PtX upgrading into e.g. methanol. The purity of the hydrogen produced by the setup was found to be 98.75 %. With the implementation of a small carbon filter, it could be possible to utilize the hydrogen in either fuel cells or for gas-to-liquid purposes.

AB - A new biogas cleaning technology was tested at the Hashøj Biogas facility in Denmark. The new technology is a PtX process which consumes only electricity to clean the biogas. The process was capable of removing a wide variety of sulfur components, most notably hydrogen sulfide and mercaptans. Additionally, a variety of volatile organic compounds (VOC) such as terpenes and benzenes were removed. Overall, the process was found to remove 99.96 % of sulfur species in the biogas alongside 94.77 % of the measured VOC. With a polishing step the biogas will be ready for use either as a substitute for natural gas, or for PtX upgrading into e.g. methanol. The purity of the hydrogen produced by the setup was found to be 98.75 %. With the implementation of a small carbon filter, it could be possible to utilize the hydrogen in either fuel cells or for gas-to-liquid purposes.

KW - Biogas cleaning

KW - Electrochemistry

KW - Gas scrubbing

KW - Power-to-X (PtX)

KW - VOC removal

U2 - 10.1016/j.seppur.2024.128677

DO - 10.1016/j.seppur.2024.128677

M3 - Journal article

AN - SCOPUS:85197557559

SN - 1383-5866

VL - 354

JO - Separation and Purification Technology

JF - Separation and Purification Technology

M1 - 128677

ER -

Innovative electroscrubbing process for biogas impurity removal

Abstract

Keywords

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