Imperial College London
Portrait Picture

Dr Roberto Rinaldi FRSC

Faculty of Engineering, Department of Chemical Engineering

Reader in Applied Chemistry
 
 
 
//

Contact

 

+44 (0)20 7594 1302r.rinaldi1 Website

 
 
//

Location

 

523ACE ExtensionSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Rinken:2022:10.1002/cssc.202201875,
author = {Rinken, R and Posthuma, D and Rinaldi, R},
doi = {10.1002/cssc.202201875},
journal = {ChemSusChem: chemistry and sustainability, energy and materials},
pages = {1--14},
title = {Lignin stabilization and carbohydrate nature in H-transfer reductive catalytic fractionation: the role of solvent fractionation of lignin oil in structural profiling},
url = {http://dx.doi.org/10.1002/cssc.202201875},
volume = {16},
year = {2022}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Reductive Catalytic Fractionation (RCF) of lignocellulosic materials produces lignin oil rich in monomer products and high-quality cellulosic pulps. RCF lignin oil also contains lignin oligomers/polymers and hemicellulose-derived carbohydrates. The variety of components makes lignin oil a complex matrix for analytical methods. As a result, the signals are often convoluted and overlapped, making detecting and quantifying key intermediates challenging. Therefore, to investigate the mechanisms underlining lignin stabilization and elucidate the structural features of carbohydrates occurring in the RCF lignin oil, fractionation methods reducing the RCF lignin oil complexity are required. This report examines the solvent fractionation of RCF lignin oil as a facile method for producing lignin oil fractions for advanced characterization. Solvent fractionation uses small volumes of environmentally benign solvents (methanol, acetone, and ethyl acetate) to produce multigram lignin fractions comprising products in different molecular weight ranges. This feature allows the determination of structural heterogeneity across the entire molecular weight distribution of the RCF lignin oil by high-resolution HSQC NMR spectroscopy. This study provides detailed insight into the role of the hydrogenation catalyst (Raney Ni) in stabilizing lignin fragments and defining the structural features of hemicellulose-derived carbohydrates in lignin oil obtained by the H-transfer RCF process.1
AU  - Rinken,R
AU  - Posthuma,D
AU  - Rinaldi,R
DO  - 10.1002/cssc.202201875
EP  - 14
PY  - 2022///
SN  - 1864-5631
SP  - 1
TI  - Lignin stabilization and carbohydrate nature in H-transfer reductive catalytic fractionation: the role of solvent fractionation of lignin oil in structural profiling
T2  - ChemSusChem: chemistry and sustainability, energy and materials
UR  - http://dx.doi.org/10.1002/cssc.202201875
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000900722300001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.202201875
UR  - http://hdl.handle.net/10044/1/101736
VL  - 16
ER  -
Download