Continuous On-Line Tar Measurements for Gasification Process Monitoring using Fluorescence Excitation-Emission Matrices at Elevated Temperature

Main Article Content

Shaimaa Salih Mahdi


Biomass has been extensively investigated, because of its presence as clean energy source. Tars and particulates formation problems are still the major challenges in development especially in the implementation of gasification technologies into nowadays energy supply systems. Laser Induced Fluorescence spectroscopy (LIF) method is incorporated for determining aromatic and Polycyclic Aromatic Hydrocarbons (PAH) produced at high temperature gasification technology. The effect of tars deposition when the gases are cooled has been highly reduced by introducing a new concept of measurement cell. The samples of PAH components have been prepared with the standard constrictions of measured PAHs by using gas chromatograph (GC). OPO laser with tuning rang of (200 to 2400) nm and peak energy of 2.2 mJ were used to excite the tar compounds, which have fluorescence properties in the range of ultraviolet| blue spectral range. The measurements have been evaluated by incorporating the Excitation-Emission Matrices (EEM), presented as time consuming method for tar monitoring. 


Download data is not yet available.

Article Details

How to Cite
Mahdi SS. Continuous On-Line Tar Measurements for Gasification Process Monitoring using Fluorescence Excitation-Emission Matrices at Elevated Temperature . Baghdad Sci.J [Internet]. 2021Mar.10 [cited 2021May9];18(1):0132. Available from:


Prashant K, Zakir Kh, Michael G, Jon McC, Iain D, Ian W. Robust instrumentation and control systems for gasification of biomass. 26th Eur. Biomass Conf. and Exh. May 2018; 14-17.

Ahlam MF, Rasha AJ, Nafeesa JK, Wesen AM, Atheer AM. Synthesis of Silver Nanoparticles from Malva parviflora Extract and Effect on Ecto-5'- Nucleotidase(5'-NT), ADA and AMPDA Enzymes in Sera of Patients with Arthrosclerosis. Baghdad Sci. J. 2017;14(4):742-746.

Sun RZ, York N, Cardenaz-Chavez C, Behrendt F. Analysis of gas-phase polycyclic aromatic hydrocarbon mixtures by laser-induced fluorescence. Opt. Laser Eng. 2010 ;48: 1231 – 1237.

Christoph B, Sotirios K. Tar analysis from gasification by means of online fluorescence spectroscopy. Opt. Laser Eng. 2011; 49(7): 885-891.

Nicolas F, Marc T, Catherine G, Stéphane M, Roland R, Madeleine G. Identification and quantification of known polycyclic aromatic hydrocarbons and pesticides in complex mixtures using fluorescence excitation–emission matrices and parallel factor analysis. Chemosphere. 2014;107:344–353.

Jan N, Petr B, Sergej S, Jaroslav F, Jan K, Vaclav P. Problems related to gasification of biomass-properties of solid pollutants in raw gas. Energies. 2019;12(963):1-14.

Borkowski MM. Online analysis of the tar content of biomass gasification producer gas. PhD [dissertation]. Germany: Technische Universitaet Muenchen ; 2011.

Amanda CS, Licarion P, Adriano AG, Mario CUA. Green Chemistry method based on PARAFAC EEM data modeling for Benzo[a]Pyrene Quantitation in Distilled spirit. J Braz Chem Soc. 2019; 30:1- 2.

Emmanuel YK. Effect of Furnace Temperature on the Distribution of Tar during gasification of Miscanthus. J. En R R. 2018; 2(1): 1-7.

Michelle LN, Karl SB. Excitation-emission matrix fluorescence spectroscopy in conjunction with multiway analysis for PAH detection in complex matrices. Analyst. 2006 ;131: 1308–1311.

Meena KY, Rupak A, Michael DSh, Christopher PS. Fluorescence Excitation-Emission Spectroscopy: An Analytical Technique to monitor Drugs of addiction in wastewater. Water. 2019 ;11(377):1-11.

Iain SB, Clemens F K. Diode Laser Induced Fluorescence for Gas-Phase Diagnostics. Z Phys Chem, 2011; 225:1343–1366.

Orain M, Baranger P, Rossow B, Grisch F. Fluorescence spectroscopy of naphthalene at high temperatures and pressures: implications for fuel-concentration measurements. Appl Phys B. 2011; 102: 163–172.

Gedinger A, Spoeri R, Scheffknecht G. Comparison measurements of tar content in gasification systems between an online method and the tar protocol. Biomass Bioenerg. 2011; 111: 301-307.

Anunay S, Chelladurai D, Richard WF. Picosecond Time-Resolved Absorption and Emission Studies of the Singlet Excited States of Acenaphthylene. J Phys Chem. 1990; 94(18): 7106-7110.

Dan G, Mohit P, Kent OD, Jan BCP. Online measurements of alkali and heavy tar components in biomass gasification. Energy fuel. 2017; 31(8): 8152-8161.

Defoort F, Thiery S, Ravel S. A promising new on-line method of tar quantification by mass spectrometry during steam gasification of biomass. Biomass Bioenerg. 2014; 65: 64-71.

Jinlan X, Wenchao X, Yue-xiao Sh, Jihua T, Shuai L, Yanfen W, et al. Excitation-emission matrix (EEM) fluorescence spectroscopy for characterization of organic matter in membrane bioreactors: Principles, methods and applications. FESE. 2020;