Sampling of benzene in tar matrices from biomass gasification using two different solid-phase sorbents

Osipovs, Sergejs
June 2008
Analytical & Bioanalytical Chemistry;Jun2008, Vol. 391 Issue 4, p1409
Academic Journal
Biomass tar mainly consists of stable aromatic compounds such as benzene and polyaromatic hydrocarbons, benzene being the biggest tar component in real biomass gasification gas. For the analysis of individual tar compounds, the solid-phase adsorption method was chosen. According to this method, tar samples are collected on a column with an amino-phase sorbent. With a high benzene concentration in biomass tar, some of the benzene will not be collected on the amino-phase sorbent. To get over this situation, we have installed another column with activated charcoal which is intended for collection of volatile organic compounds, including benzene, after the column with the amino-phase sorbent. The study of maximal adsorption amounts of various compounds on both adsorbents while testing different sampling volumes led to the conclusion that benzene is a limiting compound. The research proved that the use of two sorbents (500 mg + 100 mg) connected in series allows for assessment of tar in synthesis gas with a tar concentration up to 30–40 g m−3, which corresponds to the requirements of most gasifiers.


Related Articles

  • Srovnání podílů vybraných aromatických uhlovodíků v dehtové frakci po pyrolýze pneumatik. JUCHELKOVÁ, Dagmar; POLÁČKOVÁ, Zuzana; MACHÁČKOVÁ, Iva; SASSMANOVÁ, Veronika; FRANTÍK, Jaroslav // Waste Forum;2012, Vol. 2012 Issue 4, p198 

    The pyrolysis oil is becoming an attractive mixture, it is a liquid energy carrier and a source of general chemicals. The study is designed to evaluate the liquid phase (tar) which is a product of pyrolysis of tires. The main component the liquid phase are defined acronym BTEX (benzene, toluene,...

  • Promotion of Coconut Shell Gasification by Steam Reforming on Nickel-Dolomite. Chaiprasert, Pattaraporn; Vitidsant, Tharapong // American Journal of Applied Sciences;2008, Vol. 6 Issue 2, p332 

    Biomass gasification by the use of metallic nickel as active metal on dolomite support has been chosen as catalyst because of its activity in biomass steam gasification and tar reduction. The purpose of this study is to study the effects of critical parameters on product gas compositions such as...

  • Biomass gasification thermodynamic model including tar and char. Kirsanovs, V.; Žandeckis, A.; Rochas, C. // Agronomy Research;2016, Vol. 14 Issue 4, p1321 

    No abstract available.

  • Gas-Chromatographic Study of the Polarity and Selectivity of Nematic Liquid Crystals. Blokhina, S. V.; Bykova, V. V.; Sharapova, A. V.; Ol'khovich, M. V.; Trostin, A. N. // Russian Journal of General Chemistry;Feb2003, Vol. 73 Issue 2, p257 

    The sorption properties of stationary phases based on nematic p-substituted azoxybenzenes were studied. Correlations were revealed between the structural selectivity of mesogens, chemical nature of terminal substituents, capability for dispersion interactions and polarity of the sorbents,...

  • Aromatics in Asia on downtrend.  // Chemical Business;Feb2010, Vol. 24 Issue 2, p76 

    The article reports on a downtrend in the aromatics market in Asia, including the benzene and toluene markets.

  • World benzene market tumbles. Gibson, Jane // European Chemical News;12/20/2004, Vol. 81 Issue 2128, p10 

    Reports on the prices of benzene in Europe as of December 2004. Decline in benzene spot prices per tonne; Possible reason behind the collapse of the benzene market around the world; Expectation on benzene supply in 2005.

  • C6H6.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p415 

    An encyclopedia entry for the chemical compound "C6H6," which refers to benzene, is presented.

  • benzol.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p256 

    A definition of the term "benzol" is presented.

  • Erratum: "Intramolecular vibrational redistribution in aromatic molecules. I. Eigenstate resolved CH stretch first overtone spectra of benzene" [J. Chem. Phys. 113, 10583 (2000)]. Callegari, A.; Merker, U.; Engels, P.; Srivastava, H. K.; Lehmann, K. K.; Scoles, G. // Journal of Chemical Physics;2/15/2001, Vol. 114 Issue 7 

    Presents corrections to diagrams of probe laser wavenumber and the ratio of bright-bath to bath-bath coupling in the article 'Intramolecular vibrational redistribution in aromatic molecules. I. Eigenstate resolved CH stretch first overtone spectra of benzene.'


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics