Photoacoustic monitoring of CO2 in biogas matrix using a quantum cascade laser

Bernhard Lendl; Wolfgang Ritter; Michael Harasek; Reinhard Niessner; Christoph Haisch

doi:10.1109/ICSENS.2007.355475

Photoacoustic monitoring of CO₂ in biogas matrix using a quantum cascade laser

Bernhard Lendl, Wolfgang Ritter, Michael Harasek, Reinhard Niessner, Christoph Haisch

Natural Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

9 Scopus citations

Abstract

We have developed an on-line sensor for biogas monitoring using mid-infrared quantum cascade laser (QCL) and photoacoustic (PA) detection. This sensor concept takes advantage of the inherent selectivity provided by mid-ER laser spectroscopy and the small gas volume required in photoacoustic spectroscopy allowing rapid response. Using a distributed feedback QCL emitting at 4.3 μm, the sensor concept as been successfully tested for carbon dioxide measurement under harsh conditions during biogas treatment in a pilot plant. In this application a reliable and rapid gas sensor is required for process control to assure a continuous CO₂ concentration below 2%. The obtained results compared favorably with a state of the art NDIR analyzer used as a reference with the distinct advantage of faster response times. Due to the generic nature of the developed PA-QCL sensor concept selective on-line measurement of other important analytes in biogas, such as NH₃ and H₂S is possible as well.

Original language	English
Title of host publication	2006 5th IEEE Conference on Sensors
Pages	338-341
Number of pages	4
DOIs	https://doi.org/10.1109/ICSENS.2007.355475
State	Published - 2006
Event	2006 5th IEEE Conference on Sensors - Daegu, Korea, Republic of Duration: 22 Oct 2006 → 25 Oct 2006

Publication series

Name	Proceedings of IEEE Sensors

Conference

Conference	2006 5th IEEE Conference on Sensors
Country/Territory	Korea, Republic of
City	Daegu
Period	22/10/06 → 25/10/06

Access to Document

10.1109/ICSENS.2007.355475

Cite this

@inproceedings{07ae5121cc4744faa5aefa99758162f7,

title = "Photoacoustic monitoring of CO2 in biogas matrix using a quantum cascade laser",

abstract = "We have developed an on-line sensor for biogas monitoring using mid-infrared quantum cascade laser (QCL) and photoacoustic (PA) detection. This sensor concept takes advantage of the inherent selectivity provided by mid-ER laser spectroscopy and the small gas volume required in photoacoustic spectroscopy allowing rapid response. Using a distributed feedback QCL emitting at 4.3 μm, the sensor concept as been successfully tested for carbon dioxide measurement under harsh conditions during biogas treatment in a pilot plant. In this application a reliable and rapid gas sensor is required for process control to assure a continuous CO2 concentration below 2%. The obtained results compared favorably with a state of the art NDIR analyzer used as a reference with the distinct advantage of faster response times. Due to the generic nature of the developed PA-QCL sensor concept selective on-line measurement of other important analytes in biogas, such as NH3 and H2S is possible as well.",

author = "Bernhard Lendl and Wolfgang Ritter and Michael Harasek and Reinhard Niessner and Christoph Haisch",

year = "2006",

doi = "10.1109/ICSENS.2007.355475",

language = "English",

isbn = "1424403766",

series = "Proceedings of IEEE Sensors",

pages = "338--341",

booktitle = "2006 5th IEEE Conference on Sensors",

note = "2006 5th IEEE Conference on Sensors ; Conference date: 22-10-2006 Through 25-10-2006",

}

TY - GEN

T1 - Photoacoustic monitoring of CO2 in biogas matrix using a quantum cascade laser

AU - Lendl, Bernhard

AU - Ritter, Wolfgang

AU - Harasek, Michael

AU - Niessner, Reinhard

AU - Haisch, Christoph

PY - 2006

Y1 - 2006

N2 - We have developed an on-line sensor for biogas monitoring using mid-infrared quantum cascade laser (QCL) and photoacoustic (PA) detection. This sensor concept takes advantage of the inherent selectivity provided by mid-ER laser spectroscopy and the small gas volume required in photoacoustic spectroscopy allowing rapid response. Using a distributed feedback QCL emitting at 4.3 μm, the sensor concept as been successfully tested for carbon dioxide measurement under harsh conditions during biogas treatment in a pilot plant. In this application a reliable and rapid gas sensor is required for process control to assure a continuous CO2 concentration below 2%. The obtained results compared favorably with a state of the art NDIR analyzer used as a reference with the distinct advantage of faster response times. Due to the generic nature of the developed PA-QCL sensor concept selective on-line measurement of other important analytes in biogas, such as NH3 and H2S is possible as well.

AB - We have developed an on-line sensor for biogas monitoring using mid-infrared quantum cascade laser (QCL) and photoacoustic (PA) detection. This sensor concept takes advantage of the inherent selectivity provided by mid-ER laser spectroscopy and the small gas volume required in photoacoustic spectroscopy allowing rapid response. Using a distributed feedback QCL emitting at 4.3 μm, the sensor concept as been successfully tested for carbon dioxide measurement under harsh conditions during biogas treatment in a pilot plant. In this application a reliable and rapid gas sensor is required for process control to assure a continuous CO2 concentration below 2%. The obtained results compared favorably with a state of the art NDIR analyzer used as a reference with the distinct advantage of faster response times. Due to the generic nature of the developed PA-QCL sensor concept selective on-line measurement of other important analytes in biogas, such as NH3 and H2S is possible as well.

UR - http://www.scopus.com/inward/record.url?scp=50149096441&partnerID=8YFLogxK

U2 - 10.1109/ICSENS.2007.355475

DO - 10.1109/ICSENS.2007.355475

M3 - Conference contribution

AN - SCOPUS:50149096441

SN - 1424403766

SN - 9781424403769

T3 - Proceedings of IEEE Sensors

SP - 338

EP - 341

BT - 2006 5th IEEE Conference on Sensors

T2 - 2006 5th IEEE Conference on Sensors

Y2 - 22 October 2006 through 25 October 2006

ER -