Effect of hierarchical HZSM-5 zeolite on the catalytic depolymerization of organosolv lignin to renewable phenols

AbstractMolar masses, Mark-Houwink-Sakurada (MHS) exponents, and refractive index increments (dn/dc) for three lignins were determined without derivatization by multi-detector gel permeation chromatography (GPC) in dimethylformamide (DMF) with 0.05 M lithium bromide (LiBr). The lack of effectiveness of fluorescence filters on molar mass determination by GPC-multi-angle laser light scattering (MALS) was confirmed for softwood kraft lignin (Indulin AT) and revealed for mixed hardwood organosolv lignin (Alcell) as well as soda straw/grass lignin (Protobind 1000). GPC with viscometry detection confirmed that these lignins were present as compact molecules. The MHS exponent α for Indulin AT and Alcell was in the order of 0.1. Additionally, the intrinsic viscosity of Protobind 1000 for a given molar mass was much lower than that of either Alcell or Indulin AT. This is the first report of dn/dc values for these three lignins in DMF with 0.05 M LiBr.

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Scale of Homogeneous Mixing in Miscible Blends of Organosolv Lignin Esters with Poly(ϵ-caprolactone)

Journal of Wood Chemistry and Technology ◽

10.1080/02773811003714194 ◽

2010 ◽

Vol 30 (4) ◽

pp. 330-347 ◽

Cited By ~ 3

Author(s):

Yoshikuni Teramoto ◽

Seung-Hwan Lee ◽

Takashi Endo ◽

Yoshiyuki Nishio

Keyword(s):

Organosolv Lignin ◽

Miscible Blends

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Self-hydrogen transfer hydrogenolysis of β-O-4 linkages in lignin catalyzed by MIL-100(Fe) supported Pd–Ni BMNPs

Green Chemistry ◽

10.1039/c7gc02087b ◽

2017 ◽

Vol 19 (19) ◽

pp. 4538-4543 ◽

Cited By ~ 30

Author(s):

Jia-wei Zhang ◽

Guo-ping Lu ◽

Chun Cai

Keyword(s):

Hydrogen Transfer ◽

Catalytic Performance ◽

Model Compounds ◽

Lignin Model Compounds ◽

Organosolv Lignin ◽

Lignin Model ◽

Intramolecular Transfer ◽

Supported Pd

A MIL-100(Fe) supported Pd–Ni BMNP catalyst has been fabricated, and the catalyst exhibits superior catalytic performance toward intramolecular transfer hydrogenolysis of lignin model compounds and organosolv lignin.

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Preparation of organosolv lignin-stabilized nano zero-valent iron and its application as granular electrode in the tertiary treatment of pulp and paper wastewater

Chemical Engineering Journal ◽

10.1016/j.cej.2017.08.121 ◽

2018 ◽

Vol 331 ◽

pp. 317-325 ◽

Cited By ~ 11

Author(s):

Zexu Chi ◽

Zhen Wang ◽

Yu Liu ◽

Guihua Yang

Keyword(s):

Pulp And Paper ◽

Zero Valent Iron ◽

Tertiary Treatment ◽

Organosolv Lignin ◽

Paper Wastewater ◽

Nano Zero Valent Iron

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In-Situ Upgrading of Organosolv Lignin- and Cellulose-Derived Pyrolyzates Over Ce-MCM-41 Catalyst

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2019.15949 ◽

2019 ◽

Vol 19 (2) ◽

pp. 1162-1165 ◽

Cited By ~ 1

Author(s):

Daejun Oh ◽

Eun-Bum Cho ◽

In-Gu Lee ◽

Young-Kwon Park

Keyword(s):

Organosolv Lignin ◽

Mcm 41

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Benzoxazines with enhanced thermal stability from phenolated organosolv lignin

RSC Advances ◽

10.1039/c6ra22334f ◽

2016 ◽

Vol 6 (109) ◽

pp. 107689-107698 ◽

Cited By ~ 13

Author(s):

Ghizelle Jane Abarro ◽

Jacob Podschun ◽

Leslie Joy Diaz ◽

Seishi Ohashi ◽

Bodo Saake ◽

...

Keyword(s):

Thermal Stability ◽

High Thermal Stability ◽

Organosolv Lignin

Phenolated lignin was modified with propargyl amine and aniline to benzoxazines, which exhibit high thermal stability and were classified as self-extinguishing.

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