Effect of hydrothermal carbonization and eutectic salt mixture (KCl/LiCl) on the pyrolysis of Kraft lignin as revealed by thermal analysis coupled to advanced high-resolution mass spectrometry was written by Friederici, Lukas;Mesceriakove, Sara-Maaria;Neumann, Anika;Sermyagina, Ekaterina;Mesceriakovas, Arunas;Laehde, Anna;Grimmer, Christoph;Streibel, Thorsten;Rueger, Christopher P.;Zimmermann, Ralf. And the article was included in Journal of Analytical and Applied Pyrolysis in 2022.Application of 7447-41-8 The following contents are mentioned in the article:
The production of graphite requires high temperatures, and fossil petroleum, coal, or nutshells are frequently used as a carbon source. As a replacement, Kraft lignin, a byproduct of the pulp and paper industry, is a promising carbon source. Biomass-based feedstocks with improved characteristics can be obtained by hydrothermal carbonization, but the chem. nature of this process is not fully understood yet. Moreover, adding a eutectic salt mixture (LiCl/KCl) to the pyrolysis of kraft lignin and HTC lignin can improve the graphitization at lower temperatures In this study, thermal anal. with online mass spectrometric detection of evolved gas mixture was applied to explore the influence of the eutectic salt mixture on the char conversion process. Aside from classical pyrolysis gas chromatog. mass spectrometry, thermogravimetry coupled with soft photoionization mass spectrometry allowed to identify phenol, hydrogen sulfide, di-Me sulfide, and various larger lignin fragments. These larger dimeric/trimeric methoxyphenol derivatives were successfully validated by means of high-resolution mass spectrometry equipped with soft atm. pressure chem. ionization. The investigations indicated the catalytic influence of the salt mixture on the production process of the biochars, achieving partially graphitization already at relatively low temperatures On the morphol., Raman spectroscopy and electron microscopy revealed the evolution of the carbon structures and revealed that the materials have typical features for amorphous carbon. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Application of 7447-41-8).
Lithium chloride (cas: 7447-41-8) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Application of 7447-41-8
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics