Hydrothermal liquefaction of lignin in near-critical water in a new batch reactor: Influence of phenol and temperature

被引：74

作者：

Arturi, Katarzyna R. ^{[1
]}

Strandgaard, Morten ^{[1
]}

Nielsen, Rudi P. ^{[1
]}

Sogaard, Erik G. ^{[1
]}

Maschietti, Marco ^{[1
]}

机构：

[1] Aalborg Univ, Fac Sci & Engn, Sect Chem Engn, Dept Chem & Biosci, Niels Bohrs Vej 8, DK-6700 Esbjerg, Denmark

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2017年 / 123卷

关键词：

Kraft lignin; Hydrothermal conversion; Aromatic monomers; Biocrude; Co-solvent; Injection; SUPERCRITICAL WATER; ELEVATED-TEMPERATURE; MODEL-COMPOUND; WOOD BIOMASS; KRAFT LIGNIN; CONVERSION; DEPOLYMERIZATION; GASIFICATION; CHEMICALS; CATALYSTS;

D O I：

10.1016/j.supflu.2016.12.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The hydrothermal conversion of Kraft lignin (6 wt.%) in the presence of K2CO3 (1.7 wt.%) was studied as a function of temperature (T = 280-350 degrees C) and phenol mass fraction. (w(ph) = 0.0-9.7 wt.%). The process was carried out in a new batch reactor with injection of lignin slurry enabling fast heating of the biomass, effective control of reaction pressure, and withdrawal/quenching of the products. An aqueous phase and biocrude were obtained, both containing a broad spectrum of aromatic monomers and dimers. The former group consisted mostly of methoxybenzenes, guaiacols, catechols, and alkylphenols, while the latter included anisolic/phenolic dimers. For a given wph (3.4 wt.%), the total yield of monomeric aromatics (Y-T) was maximized at 320 degrees C. At T =300 degrees C and without phenol, YT was low, whereas it increased steeply up to w(ph) = 6.5 wt.%. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：28 / 39

页数：12

共 44 条

[41] Temperature-dependent optical constants of water ice in the near infrared: new results and critical review of the available measurements
Rajaram, B
Glandorf, DL
Curtis, DB
Tolbert, MA
Toon, OB
Ockman, N
APPLIED OPTICS, 2001, 40 (25) : 4449 - 4462
[42] Temperature-dependent optical constants of water ice in the near infrared: New results and critical review of the available measurements
Rajaram, Bhavani
Glandorf, David L.
Curtis, Daniel B.
Tolbert, Margaret A.
Toon, Owen B.
Ockman, Nathan
2001, Optical Society of America (OSA) (40):
[43] Effect of hydrothermal condition on the formation of multi-component oxides of Ni-based metallic glass under high temperature water near the critical point
Kim, J. S.
Kim, S. Y.
Kim, D. H.
Ott, R. T.
Kim, H. G.
Lee, M. H.
AIP ADVANCES, 2015, 5 (07):
[44] Effect of hydrothermal condition on the formation of multi-component oxides of Ni-based metallic glass under high temperature water near the critical point (vol 5, 077132, 2015)
Kim, J. S.
Kim, S. Y.
Kim, D. H.
Ott, R. T.
Kim, H. G.
Lee, M. H.
AIP ADVANCES, 2015, 5 (12):

← 1 2 3 4 5 →