Complementing Vanillin and Cellulose Production by Oxidation of Lignocellulose with Stirring Control

doi:10.1021/acssuschemeng.9b04837

GIEC OpenIR

	Complementing Vanillin and Cellulose Production by Oxidation of Lignocellulose with Stirring Control
	Zhu, Yuting 1,2,5; Liao, Yuhe 3; Lv, Wei 1,2; Liu, Jing 1,2,5; Song, Xiangbo 1,2,5; Chen, Lungang 1,2; Wang, Chenguang 1,2; Sels, Bert F.3,4; Ma, Longlong1,2
	2020-02-17
发表期刊	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN	2168-0485
卷号	8 期号:6 页码:2361-2374
通讯作者	Wang, Chenguang(wangcg@ms.giec.ac.cn) ; Sels, Bert F.(bert.sels@kuleuven.be)
摘要	Lignin transformation to high-value chemicals is key for forthcoming biorefineries. Here, we report efficient delignification of pine wood by oxidative biorefining in aqueous alkali, producing both vanillin and cellulose as valuable end products. Under optimal conditions, viz., 400 rpm, 160 degrees C, 1 h, 7.5 wt % NaOH, and 1 MPa O-2, more than 90% of lignin is converted and fractionated into monophenolics (29 wt % on Kraft lignin basis and vanillin yield is 21.1 wt %) and small oligophenolics (56.7 wt %, average M-w between 300 and 600 Da), next to a pool of small carboxylic acids. Depending on the conditions, a substantial amount of white residue can be formed as a coproduct, comprising 45% yield of 95.5% pure fibrous crystalline cellulose I, or a less pure cellulose residue can be obtained, which is highly reactive toward levulinic and formic acid formation using acid catalysis. Liquor refining by liquid-liquid extraction facilitates thorough identification of the main products by gas chromatography-mass spectrometry (MS), heteronuclear single quantum coherence NMR, electrospray ionization quadrupole time-of-flight mass spectrometry, and gel permeation chromatography. The mass balance shows close to 70% carbon efficiency of biomass conversion into useful products. Surprisingly, agitation speed, in addition to base concentration, temperature, and reaction time, is a crucial parameter to overcome deeper oxidation/condensation of soluble lignin fragments and to avoid substantial cellulose degradation. Similar reactions with other feedstock such as eucalyptus (hardwood), grasses, and a bagasse waste stream demonstrate the feasibility of the reported oxidative catalytic fractionation and the strong dependency of the product distribution on biomass variability within the different fractions.
关键词	lignocellulose oxidation vanillin cellulose lignin NaOH oxidative catalytic fractionation
DOI	10.1021/acssuschemeng.9b04837
关键词[WOS]	CATALYTIC-OXIDATION ; STRUCTURAL CHARACTERISTICS ; LIGNIN DEPOLYMERIZATION ; OXIDIZED CELLULOSE ; MODEL COMPOUNDS ; WET OXIDATION ; BIOMASS ; FRACTIONATION ; CHEMICALS ; TRANSFORMATION
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2018YFB1501504] ; National Natural Science Foundation of China[51776206] ; National Natural Science Foundation of China[51606205] ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21060102] ; federal government
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
项目资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; federal government
WOS类目	Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical
WOS记录号	WOS:000514488600004
出版者	AMER CHEMICAL SOC
引用统计	被引频次：45[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/26517
专题	中国科学院广州能源研究所
通讯作者	Wang, Chenguang; Sels, Bert F.
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China 3.Katholieke Univ Leuven, CSCE, Celestijnenlaan 200F, B-3001 Heverlee, Belgium 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Beijing 100049, Peoples R China 5.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Zhu, Yuting,Liao, Yuhe,Lv, Wei,et al. Complementing Vanillin and Cellulose Production by Oxidation of Lignocellulose with Stirring Control[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2020,8(6):2361-2374.
APA	Zhu, Yuting.,Liao, Yuhe.,Lv, Wei.,Liu, Jing.,Song, Xiangbo.,...&Ma, Longlong.(2020).Complementing Vanillin and Cellulose Production by Oxidation of Lignocellulose with Stirring Control.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,8(6),2361-2374.
MLA	Zhu, Yuting,et al."Complementing Vanillin and Cellulose Production by Oxidation of Lignocellulose with Stirring Control".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 8.6(2020):2361-2374.