[HTML][HTML] Recent advances in the characterization of gaseous and liquid fuels by vibrational spectroscopy

J Kiefer - Energies, 2015 - mdpi.com
Most commercial gaseous and liquid fuels are mixtures of multiple chemical compounds. In
recent years, these mixtures became even more complicated when the suppliers started to …

Raman spectroscopy as a versatile tool for investigating thermochemical processing of coal, biomass, and wastes: recent advances and future perspectives

J Xu, Q He, Z Xiong, Y Yu, S Zhang, X Hu, L Jiang… - Energy & …, 2020 - ACS Publications
Raman spectroscopy, as a rapid, high-precision, and nondestructive tool, can be used for
analyzing the samples from gas to solid, from ex situ to in situ, from organic macromolecule …

Fast and Highly Sensitive Fiber-Enhanced Raman Spectroscopic Monitoring of Molecular H2 and CH4 for Point-of-Care Diagnosis of Malabsorption Disorders in …

S Hanf, T Bögözi, R Keiner, T Frosch… - Analytical …, 2015 - ACS Publications
Breath gas analysis is a novel powerful technique for noninvasive, early-stage diagnosis of
metabolic disorders or diseases. Molecular hydrogen and methane are biomarkers for …

Raman gas analyzer (RGA): Natural gas measurements

DV Petrov, II Matrosov - Applied spectroscopy, 2016 - journals.sagepub.com
In the present work, an improved model of the Raman gas analyzer (RGA) of natural gas
(NG) developed by us is described together with its operating principle. The sensitivity has …

Monitoring of gas composition in a laboratory biogas plant using cavity enhanced Raman spectroscopy

A Sieburg, S Schneider, D Yan, J Popp, T Frosch - Analyst, 2018 - pubs.rsc.org
Biogas production from organic raw materials is a highly complex biotechnological process.
The responsible anaerobic fermentation process is difficult to measure due to its multi-stage …

Application of Raman spectroscopy for determination of syngas composition

DV Petrov, II Matrosov, AR Zaripov… - Applied …, 2020 - journals.sagepub.com
Raman spectroscopy is a unique tool for fast analysis of multicomponent gas media. In this
work, we studied the features of application of this method for monitoring the syngas (mixture …

Determination of gas composition in a biogas plant using a Raman-based sensor system

SC Eichmann, J Kiefer, J Benz, T Kempf… - Measurement …, 2014 - iopscience.iop.org
We propose a gas sensor, based on spontaneous Raman scattering, for the compositional
analysis of typical biogas mixtures and present a description of the sensor, as well as of the …

Effects of pressure and composition on Raman spectra of CO-H2-CO2-CH4 mixtures

DV Petrov, II Matrosov, AR Zaripov… - Spectrochimica Acta Part A …, 2019 - Elsevier
There is great interest in the development of renewable and environmentally friendly fuel
sources such as biogas and syngas for generation of heat and electricity. Raman …

Raman Laser Spectrometer: Application to 12C/13C Isotope Identification in CH4 and CO2 Greenhouse Gases

V Vitkin, A Polishchuk, I Chubchenko, E Popov… - Applied Sciences, 2020 - mdpi.com
Featured Application The Developed Raman Laser Gas Spectrometer is Suitable for
Detection of Carbon Isotopologues of Methane and Carbon Dioxide in Human Exhalation …

Demonstration of a signal enhanced fast Raman sensor for multi‐species gas analyses at a low pressure range for anesthesia monitoring

S Schlüter, F Krischke… - Journal of Raman …, 2015 - Wiley Online Library
The spontaneous Raman scattering technique is an excellent tool for a quantitative analysis
of multi‐species gas mixtures. It is a noninvasive optical method for species identification …