Fractionation of liquid products from pyrolysis of lignocellulosic biomass by stepwise thermal treatment

被引：30

作者：

Persson, H. ^{[1
]}

Han, T. ^{[1
]}

Sandstrom, L. ^{[2
]}

Xia, W. ^{[1
]}

Evangelopoulos, P. ^{[1
]}

Yang, W. ^{[1
]}

机构：

[1] KTH Royal Inst Technol, Dept Mat Sci & Engn, Brinellvagen 23, S-11428 Stockholm, Sweden

[2] RISE Energy Technol Ctr AB, Box 726, Pitea, Sweden

来源：

ENERGY | 2018年 / 154卷

关键词：

Pyrolysis; Biomass; Bio-oil; Stepwise; Fractionation; FORESTRY RESIDUE; CELLULOSE; LIGNIN; OIL; HEMICELLULOSE; KINETICS; TGA;

D O I：

10.1016/j.energy.2018.04.150

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermal properties of cellulose, hemicellulose and lignin can be utilized to improve the characteristics of pyrolysis liquids. In this study, a concept of stepwise pyrolysis to fractionate the liquid based on the thermal properties of the biomass constituents was investigated. Lignocellulosic biomass was thermally treated in two steps: 200-300 degrees C followed by 550 degrees C. Derived liquids were studied for GC/MS analysis, water content, acid concentration and a solvent extraction method. Pyrolytic liquid derived from 550 degrees C after treatment at lower temperatures have a higher relative composition of phenolic compounds compared to one-step pyrolysis (increased from 58 to 90% of GC/MS peak area). Also, compounds known to promote aging, such as acids and carbonyl compounds, are derived at lower temperatures which may suppress aging in the liquid derived downstream at 550 degrees C. For liquids derived at 550 degrees C, the total acid number was reduced from 125 in one-step treatment to 14 in two-step treatment. Overall, no significant difference in the total liquid yield (sum of the liquids derived in separated treatments) nor any variations in their collective composition compared to one-step treatment at 550 degrees C was observed, i.e. stepwise pyrolysis can be utilized for direct fractionation of pyrolytic vapors. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：346 / 351

页数：6

共 23 条

[1] Review of fast pyrolysis of biomass and product upgrading [J].

Bridgwater, A. V. .

BIOMASS & BIOENERGY, 2012, 38 :68-94

[2] An overview of fast pyrolysis of biomass [J].

Bridgwater, AV ;

Meier, D ;

Radlein, D .

ORGANIC GEOCHEMISTRY, 1999, 30 (12) :1479-1493

[3] Overview of applications of biomass fast pyrolysis oil [J].

Czernik, S ;

Bridgwater, AV .

ENERGY & FUELS, 2004, 18 (02) :590-598

[4] Biomass valorisation by staged degasification A new pyrolysis-based thermochemical conversion option to produce value-added chemicals from lignocellulosic biomass [J].

de Wild, P. J. ;

den Uil, H. ;

Reith, J. H. ;

Kiel, J. H. A. ;

Heeres, H. J. .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2009, 85 (1-2) :124-133

[5]

Diebold J.P., 2000, REV CHEM PHYS MECH S

[6] Synthesis of transportation fuels from biomass: Chemistry, catalysts, and engineering [J].

Huber, George W. ;

Iborra, Sara ;

Corma, Avelino .

CHEMICAL REVIEWS, 2006, 106 (09) :4044-4098

[7] Evidence of char formation during wood heat treatment by mild pyrolysis [J].

Inari, Gildas Nguila ;

Mounguengui, Steeve ;

Dumarcay, Stephane ;

Petrissans, Mathieu ;

Gerardin, Philippe .

POLYMER DEGRADATION AND STABILITY, 2007, 92 (06) :997-1002

[8] Recent industrial applications of lignin: A sustainable alternative to nonrenewable materials [J].

Lora, JH ;

Glasser, WG .

JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2002, 10 (1-2) :39-48

[9] Influence of pyrolysis temperature and time on the cellulose fast pyrolysis products: Analytical Py-GC/MS study [J].

Lu, Qiang ;

Yang, Xiao-chu ;

Dong, Chang-qing ;

Zhang, Zhi-fei ;

Zhang, Xu-ming ;

Zhu, Xi-feng .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2011, 92 (02) :430-438

[10] Determination of pyrolysis characteristics and kinetics of palm kernel shell using TGA-FTIR and model-free integral methods [J].

Ma, Zhongqing ;

Chen, Dengyu ;

Gu, Jie ;

Bao, Binfu ;

Zhang, Qisheng .

ENERGY CONVERSION AND MANAGEMENT, 2015, 89 :251-259

← 1 2 3 →