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New PDF release: Analytical Techniques and Methods for Biomass

By Sílvio Vaz Jr. (eds.)

This e-book bargains with the appliance of ideas and techniques of chemical research for the examine of biomass and its conversion methods, aiming to fill the present hole within the publication literature at the subject.

The use of assorted innovations and analytical tools is gifted and mentioned in an easy demeanour, offering the reader with the potential of identifying the main applicable methodologies for research of the main periods of plant biomass and its products.

In the current quantity, a pick out crew of foreign experts describes assorted methods to appreciate the biomass constitution, their actual and chemical homes, the parameters of conversion tactics, the goods and by-products formation and quantification, caliber parameters, etc.

Modern chemistry performs a powerful financial position in commercial actions in line with biomass, with an expanding pattern of the significance of its software from the deployment of biorefineries and the foundations of eco-friendly chemistry, which utilize the possibility of biomass with lowering impression destructive environmental. during this context, analytical chemistry can give a contribution considerably to the provision chains of biomass, be it plant or animal starting place; although, with the 1st providing the best demanding situations and the best chance for technical, clinical and financial growth, given its diverse chemical structure. therefore, the chemical research can be utilized to envision the composition for characterizing physicochemical houses and to observe their conversion strategies, that allows you to receive greater items and makes use of of biomass.

The caliber of the biomass used determines the product caliber. as a result, trustworthy info is needed concerning the chemical composition of the biomass to set up the simplest use (e.g., most fitted conversion strategy and its conditions), with the intention to effect harvest and education steps. Conversion methods may be monitored for his or her yield, integrity, protection, and environmental impression. Effluent or residues could be monitored and analyzed for environmental regulate. Co-products have to be monitored to prevent interference with the product yield and product purity; notwithstanding, co-products also are an excellent chance so as to add worth to the biomass chain. eventually, items have to be monitored and analyzed to figure out their yields and purity and to make sure their caliber. during this context, analytical chemistry can give a contribution considerably to the biomass offer chains, be it of plant or animal origin.

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Extra resources for Analytical Techniques and Methods for Biomass

Sample text

2004) Wang et al. (1992) Literature Khan et al. (2004) 2 Qualitative and Quantitative Analysis of Lignins from Different Sources… 23 B. El Khaldi-Hansen et al. 24 (2004) were also able to show similar results. Here, lignosulphonates were used as a blend material. Beforehand attention was, here too, devoted chiefly to the solubility. The end product exhibits improved mechanical properties (here, elongation at break was tested). In the USA there are already several patented phenolic resin systems on the basis of lignin.

3) is the intensity at the minimum 2θ between 18° and 19° for cellulose I (between 13° and 15° for cellulose II) (Roncero 2001). The crystallinity index of Segal is highly susceptible to the normalization of the spectrum and its softening, so that the handling and treatment of the data should be made evenly for all samples for comparative purposes. Raw data must be softened, 50 A. Ferrer et al. Fig. 4 Segal’s crystallinity index of three samples, with different I002 − Iam (difference of 3000, 1500, and 200, respectively) by varying the position of the spectrum in the y axis (Intensity) and in the case of Excel® the “moving average” trendline with a period of 30 may be used.

Unchanged dielectric constant Unchanged strength – Higher viscosities and curing times Comment Comparable stability regarding commercial resins when substitution of phenol through lignin (50 %), structure of lignin resins similar to the commercial resins Improved mechanical properties at good solubility in uncured resin system Improved mechanical properties Kadla et al. (2002) Kosbar et al. (2001) Cetin and Özmen (2002) Araújo et al. (2010) Peng and Riedl (1994) Cazacu et al. (2004) Wang et al.

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