Application of the SARA method for determination of hydrocarbons by GC/qMS in bio-oil obtained by fast pyrolysis of rice husk

Liquid chromatographic fractionation of bio-oil from sugarcane bagasse: influence of heating rate on bio-oil yield and quality

“…Some of these compounds were found in both samples, for example 2.6 dimethoxy phenol (syringol), with an area of 7.7% and This number is similar to that found by Barros et al [26] using comprehensive two-dimensional gas chromatography. Sanches Filho et al [25] also used fractionation by the SARA method with adaptations, and found similar results to that found in this work, especially in the first fraction with a large amount of saturated hydrocarbons and olefins and in fraction 3, more polar, with large amount of phenols, since their biomass was the house of rice. The same occured in the work of Bordoloi et al [39] who found in their analyzed fractions, a higher predominance of alkanes, aromatic hydrocarbons and phenols.…”

“…Pyrolytic studies such as those for Varma and Mondal [23] and Betemps et al [24] using similar reactors and also at 500 ºC, for sugarcane bagasse and rice husk, obtained 45.23% and 38.91% yield in bio-oil, respectively. On the other hand, Sanches Filho et al [25] and Barros et al [26] performed pyrolysis of rice husks and sugarcane bagasse at 700 ºC but using quartz reactors. They obtained bio-oil yields ranging from 38.7 to 51.0% [26] and from 25% and 27% As the composition of bio-oils was very similar for each pyrolysis condition, that is, the heating rate did not significantly influence in the composition of the bio-oil, it was calculated an average concentration for each class in both samples.…”

“…y una variedad con cierta mejora genética (Erianthus arundinaceus). La temperatura final de pirólisis se fijó en 500 ° C variando las velocidades de calentamiento (25,45 y 65 ° C min-1). Los bioaceites se fraccionaron mediante cromatografía líquida preparativa y sus fracciones se analizaron mediante cromatografía de gases acoplada a espectrometría de masas.…”

Quantitative determination of petroleum hydrocarbons in oily sludge following efficient n-heptane separation

“…Peaks appearing at 36.52 and 36.54 min were related to hexadecane. Heptacosan was observed at 37.69 and 38.72 min, and the absorbance peak at 39.63 min was identified as tetradecane according to Sanches Filho et al (2017). In Fig.…”