Water Content Determination in Biodiesel: Optimization of Methodology in Coulometric Karl Fischer Titration

Biofuels ◽  
2011 ◽  
pp. 42-42-9
Author(s):  
M. P. Vicentim ◽  
M. V. Barreto Sousa ◽  
V. Fernandes da Silva ◽  
V. Lionel Mateus ◽  
J. M. Rodrigues ◽  
...  
Keyword(s):  
Water Content ◽  
Karl Fischer Titration ◽  
Karl Fischer ◽  
Content Determination ◽  
Coulometric Karl Fischer Titration

scholarly journals DETERMINATION OF WATER CONTENT IN PYROLYTIC TARS USING COULOMETRIC KARL-FISHER TITRATION

2017 ◽  
Vol 57 (1) ◽  
pp. 8-13
Author(s):  
Lenka Jílková ◽  
Tomáš Hlinčík ◽  
Karel Ciahotný
Keyword(s):  
Water Content ◽  
High Energy ◽  
Residual Water ◽  
Karl Fischer Titration ◽  
Water Separation ◽  
Water Determination ◽  
Karl Fischer ◽  
Energy Value ◽  
Content Determination ◽  
Coulometric Karl Fischer Titration

The liquid organic fraction of pyrolytic tar has a high energy value which makes possible its utilization as an energy source. However, before utilization, it is crucial to remove water from the liquid fraction. The presence of water reduces the energy value of pyrolytic tars. Water separation from the organic tar fraction is a complex process, since an emulsion can be readily formed. Therefore, after phase separation, it is important to know the residual water content in the organic phase and whether it is necessary to further dry it. The results presented in this manuscript focus on a water determination in liquid products from coal and biomass pyrolysis by a coulometric Karl‑Fischer titration. The Coulometric Karl‑Fischer titration is often used for a water content determination in gaseous, liquid and solid samples. However, to date, this titration method has not been used for a water determination in tars. A new water determination method, which has been tested on different types of tar, has been developed. The Coulometric Karl‑Fischer titration is suitable for tar samples with a water content not greater than 5 wt. %. The obtained experimental results indicate that the new introduced method can be used with a very good repeatability for a water content determination in tars.

Water Content Determination in Biodiesel: Optimization of Methodology in Coulometric Karl Fischer Titration

2010 ◽  
Vol 7 (2) ◽  
pp. 102615 ◽  
Author(s):  
S. W. Dean ◽  
M. P. Vicentim ◽  
M. V. Barreto Sousa ◽  
V. Fernandes da Silva ◽  
V. Lionel Mateus ◽  
...  
Keyword(s):  
Water Content ◽  
Karl Fischer Titration ◽  
Karl Fischer ◽  
Content Determination ◽  
Coulometric Karl Fischer Titration

Determination of the water content of amphiphilic liquid crystals by coulometric Karl Fischer titration

1998 ◽  
Vol 24 (2) ◽  
pp. 211-213 ◽  
Author(s):  
RALF DUNKEL ◽  
MICHAEL HAHN ◽  
KONSTANZE BORISCH ◽  
BERNHARD NEUMANN ◽  
HANS-HERMANN RUTTINGER ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Water Content ◽  
Karl Fischer Titration ◽  
Karl Fischer ◽  
Coulometric Karl Fischer Titration

Determination of total water content in inulin using the volumetric Karl Fischer titration

Talanta ◽  
2006 ◽  
Vol 70 (5) ◽  
pp. 1006-1010 ◽  
Author(s):  
Sébastien N. Ronkart ◽  
Michel Paquot ◽  
Christian Fougnies ◽  
Claude Deroanne ◽  
Jean-Claude Van Herck ◽  
...  
Keyword(s):  
Water Content ◽  
Total Water Content ◽  
Total Water ◽  
Karl Fischer Titration ◽  
Karl Fischer
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