Title: Laser detection of HCl in biomethane for combustion engines
Authors: Nwaboh, Javis A., 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:10.7795/810.20200319
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: 2020-03-19
File: Download File (application/pdf) 413.17 kB (423087 Bytes)
MD5 Checksum: 7e92582c69f2a7011107651ced117f0b
SHA256 Checksum: 1f2ee950a6ce149658023c851fe45ddaf02f27e521ba33d0fe4e0deb9495bbc0
Keywords: HCl-dTDLAS ; biomethane ; test method ; quality control
Abstract: To quantify HCl impurity in biomethane, a new matrix-specialized laser spec-trometer has been developed based on direct-tunable diode laser absorption spectroscopy (dTDLAS). The spec-trometer is equipped with a 3.6 ┬Ám in-terband cascade laser, a single pass gas cell, and can determine absolute HCl gas species concentration in CH4 or biomethane with a relative standard un-certainty of 2.3 %. For HCl concentra-tion measurements at 161.7 mg/m3, the dTDLAS HCl concentration result agrees with the HCl in CH4 reference gas mixture, demonstrating the capabil-ity of the sensor. The repeatability of the dTDLAS HCl concentration results was determined to be 0.05 mg/m3.
Citation: Nwaboh, Javis ; Werhahn, Olav ; Ebert, Volker. Laser detection of HCl in biomethane for combustion engines, 2020. Physikalisch-Technische Bundesanstalt (PTB). DOI: https://doi.org/10.7795/810.20200319