Screening microwave susceptors for microwave-assisted pyrolysis of lignin: Comparison of product yield and chemical profile

Liangliang Fan; Hanwu Song; Qian Lu; Lijian Leng; Kun Li; Yuhuan Liu; Yunpu Wang; Paul Chen; Roger Ruan; Wenguang Zhou

doi:10.1016/j.jaap.2019.05.012

Screening microwave susceptors for microwave-assisted pyrolysis of lignin: Comparison of product yield and chemical profile

Liangliang Fan
, Hanwu Song
, Qian Lu
, Lijian Leng
, Kun Li
, Yuhuan Liu
, Yunpu Wang
, Paul Chen
, Roger Ruan
, Wenguang Zhou

Bioproducts and Biosystems Engineering

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

Lignin was pyrolyzed with microwave heating in the presence of different microwave susceptors including silicon carbide (SiC), activated carbon (AC), and biochar (BC). The heating profiles of microwave heating with different susceptors were characterized. With SiC as the susceptor, three distinct heating stages were observed, which were believed to correspond to the three main stages of lignin decomposition. The effects of temperature, susceptor loading weight, and susceptor type on product yield and composition were investigated. Higher pyrolysis temperatures favored char reduction, demethoxylation and alkylation of phenols, and H₂ formation. Higher SiC loading weight promoted the formation of alkyl phenols and syngas (CO and H₂). Compared with SiC, both AC and BC enhanced the production of syngas, accounting for 74.5% and 70.1% in volume percentage, respectively. AC contributed to the highest bio-oil and gas production while BC showed highest selectivity to phenol and alkyl phenols, up to 58.2% and 37.7%, respectively.

Original language	English (US)
Article number	104623
Journal	Journal of Analytical and Applied Pyrolysis
Volume	142
DOIs	https://doi.org/10.1016/j.jaap.2019.05.012
State	Published - Jan 1 2019

Bibliographical note

Funding Information:
The present work is supported in part by National Natural Science Foundation of China (No. 21466022 ; No. 21766019 ), Key Research and Development Program of Jiangxi Province ( 20161BBF60057 ; 20171BBF60023 ; GCXZ2014-124 ), the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR), Xcel Energy , and University of Minnesota Center for Biorefining .

Funding Information:
The present work is supported in part by National Natural Science Foundation of China (No. 21466022; No. 21766019), Key Research and Development Program of Jiangxi Province (20161BBF60057; 20171BBF60023; GCXZ2014-124), the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR), Xcel Energy, and University of Minnesota Center for Biorefining.

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

Activated carbon
Biochar
Lignin
Phenols
Silicon carbide
Syngas

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10.1016/j.jaap.2019.05.012

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@article{c5cfa16d93e34936bab1a635f85154c1,

title = "Screening microwave susceptors for microwave-assisted pyrolysis of lignin: Comparison of product yield and chemical profile",

abstract = "Lignin was pyrolyzed with microwave heating in the presence of different microwave susceptors including silicon carbide (SiC), activated carbon (AC), and biochar (BC). The heating profiles of microwave heating with different susceptors were characterized. With SiC as the susceptor, three distinct heating stages were observed, which were believed to correspond to the three main stages of lignin decomposition. The effects of temperature, susceptor loading weight, and susceptor type on product yield and composition were investigated. Higher pyrolysis temperatures favored char reduction, demethoxylation and alkylation of phenols, and H2 formation. Higher SiC loading weight promoted the formation of alkyl phenols and syngas (CO and H2). Compared with SiC, both AC and BC enhanced the production of syngas, accounting for 74.5\% and 70.1\% in volume percentage, respectively. AC contributed to the highest bio-oil and gas production while BC showed highest selectivity to phenol and alkyl phenols, up to 58.2\% and 37.7\%, respectively.",

keywords = "Activated carbon, Biochar, Lignin, Phenols, Silicon carbide, Syngas",

author = "Liangliang Fan and Hanwu Song and Qian Lu and Lijian Leng and Kun Li and Yuhuan Liu and Yunpu Wang and Paul Chen and Roger Ruan and Wenguang Zhou",

note = "Funding Information: The present work is supported in part by National Natural Science Foundation of China (No. 21466022 ; No. 21766019 ), Key Research and Development Program of Jiangxi Province ( 20161BBF60057 ; 20171BBF60023 ; GCXZ2014-124 ), the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR), Xcel Energy , and University of Minnesota Center for Biorefining . Funding Information: The present work is supported in part by National Natural Science Foundation of China (No. 21466022; No. 21766019), Key Research and Development Program of Jiangxi Province (20161BBF60057; 20171BBF60023; GCXZ2014-124), the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR), Xcel Energy, and University of Minnesota Center for Biorefining. Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

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doi = "10.1016/j.jaap.2019.05.012",

language = "English (US)",

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T1 - Screening microwave susceptors for microwave-assisted pyrolysis of lignin

T2 - Comparison of product yield and chemical profile

AU - Fan, Liangliang

AU - Song, Hanwu

AU - Lu, Qian

AU - Leng, Lijian

AU - Li, Kun

AU - Liu, Yuhuan

AU - Wang, Yunpu

AU - Chen, Paul

AU - Ruan, Roger

AU - Zhou, Wenguang

N1 - Funding Information: The present work is supported in part by National Natural Science Foundation of China (No. 21466022 ; No. 21766019 ), Key Research and Development Program of Jiangxi Province ( 20161BBF60057 ; 20171BBF60023 ; GCXZ2014-124 ), the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR), Xcel Energy , and University of Minnesota Center for Biorefining . Funding Information: The present work is supported in part by National Natural Science Foundation of China (No. 21466022; No. 21766019), Key Research and Development Program of Jiangxi Province (20161BBF60057; 20171BBF60023; GCXZ2014-124), the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR), Xcel Energy, and University of Minnesota Center for Biorefining. Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Lignin was pyrolyzed with microwave heating in the presence of different microwave susceptors including silicon carbide (SiC), activated carbon (AC), and biochar (BC). The heating profiles of microwave heating with different susceptors were characterized. With SiC as the susceptor, three distinct heating stages were observed, which were believed to correspond to the three main stages of lignin decomposition. The effects of temperature, susceptor loading weight, and susceptor type on product yield and composition were investigated. Higher pyrolysis temperatures favored char reduction, demethoxylation and alkylation of phenols, and H2 formation. Higher SiC loading weight promoted the formation of alkyl phenols and syngas (CO and H2). Compared with SiC, both AC and BC enhanced the production of syngas, accounting for 74.5% and 70.1% in volume percentage, respectively. AC contributed to the highest bio-oil and gas production while BC showed highest selectivity to phenol and alkyl phenols, up to 58.2% and 37.7%, respectively.

AB - Lignin was pyrolyzed with microwave heating in the presence of different microwave susceptors including silicon carbide (SiC), activated carbon (AC), and biochar (BC). The heating profiles of microwave heating with different susceptors were characterized. With SiC as the susceptor, three distinct heating stages were observed, which were believed to correspond to the three main stages of lignin decomposition. The effects of temperature, susceptor loading weight, and susceptor type on product yield and composition were investigated. Higher pyrolysis temperatures favored char reduction, demethoxylation and alkylation of phenols, and H2 formation. Higher SiC loading weight promoted the formation of alkyl phenols and syngas (CO and H2). Compared with SiC, both AC and BC enhanced the production of syngas, accounting for 74.5% and 70.1% in volume percentage, respectively. AC contributed to the highest bio-oil and gas production while BC showed highest selectivity to phenol and alkyl phenols, up to 58.2% and 37.7%, respectively.

KW - Activated carbon

KW - Biochar

KW - Lignin

KW - Phenols

KW - Silicon carbide

KW - Syngas

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UR - https://www.scopus.com/pages/publications/85066091696#tab=citedBy

U2 - 10.1016/j.jaap.2019.05.012

DO - 10.1016/j.jaap.2019.05.012

M3 - Article

AN - SCOPUS:85066091696

SN - 0165-2370

VL - 142

JO - Journal of Analytical and Applied Pyrolysis

JF - Journal of Analytical and Applied Pyrolysis

M1 - 104623

ER -

Screening microwave susceptors for microwave-assisted pyrolysis of lignin: Comparison of product yield and chemical profile

Abstract

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Keywords

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