Title: Towards a TDLAS based optical gas standard for the absolute HCl measurements in flue gases from combustion process
Authors: Qu, Zhechao, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4, Analytische Chemie der Gasphase
Werhahn, Olav, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4, Analytische Chemie der Gasphase
Ebert, Volker, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4, Analytische Chemie der Gasphase
Contributors: HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
Pages:4
Language:en
DOI:10.7795/810.20191105
Resource Type: Text / Article
Publisher: Physikalisch-Technische Bundesanstalt (PTB)
Rights: Download for personal/private use only, if your national copyright law allows this kind of use.
Dates: Available: 2019-11-12
File: Download File (application/pdf) 456.51 kB (467467 Bytes)
MD5 Checksum: 3c2a558c2d4b70b00010b71b698a7341
SHA256 Checksum: fddc2037743a93cbeb4e2819e8cf9413cdfa9295754f5c0f0570d02d948fb89d
Keywords Gas metrology ; TDLAS ; thermal boundary layer ; Hydrogen chloride (HCl)
Abstract: We present our new dTDLAS based HCl spectrometer, specially designed and optimized to measure traceable HCl concentration in different matrices (high temperature, high water vapor and CO2 contents) motivated by large-scale power stations or biomass burning domestic boilers. This system is designed to serve as an optical gas standard (OGS) and thus as a traceable transfer standard to directly quantify HCl emissions or calibrate HCl sensors or dynamically generated gas standards in the field. It employs a mid-infrared interband cascade laser (ICL) and is targeting the HCl transition lines in the fundamental band to achieve less 1 ppm (at 1 meter) sensitivity and meet the compatibility goal set by lowered HCl ELVs in the European legislation such as the Industrial Emissions Directive (IED).
Citation: Qu, Zhechao ; Werhahn, Olav ; Ebert, Volker. Towards a TDLAS based optical gas standard for the absolute HCl measurements in flue gases from combustion process, 2019. Physikalisch-Technische Bundesanstalt (PTB). DOI: https://doi.org/10.7795/810.20191105