Pretreatments promote levoglucosan production from lignocellulose via fast pyrolysis

doi:10.11949/0438-1157.20201219

CIESC Journal ›› 2021, Vol. 72 ›› Issue (4): 1825-1832.DOI: 10.11949/0438-1157.20201219

• Reviews and monographs • Previous Articles Next Articles

Pretreatments promote levoglucosan production from lignocellulose via fast pyrolysis

JIANG Liqun¹(),YUE Yuanmao^1,²,XU Lujiang³,QIAN Le¹,LIU Shijun¹,ZHAO Zengli¹,LI Haibin¹,LIAO Yanfen^1,²

^1.CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China
^2.School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
^3.College of Engineering, Nanjing Agricultural University, Nanjing 210031, Jiangsu, China

Received:2020-08-26 Revised:2020-09-28 Online:2021-04-05 Published:2021-04-05
Contact: JIANG Liqun

预处理促进木质纤维素快速热解生成左旋葡聚糖

蒋丽群¹(),岳元茂^1,²,徐禄江³,钱乐¹,刘世君¹,赵增立¹,李海滨¹,廖艳芬^1,²

^1.中国科学院可再生能源重点实验室，广东省新能源和可再生能源研究开发与应用重点实验室，中国科学院广州能源研究所，广东广州 510640
^2.华南理工大学电力学院，广东广州 510640
^3.南京农业大学工学院，江苏南京 210031

通讯作者: 蒋丽群
作者简介:蒋丽群（1986—），女，博士，副研究员，lqjiang@ms.giec.ac.cn
基金资助:
广东省基础与应用基础研究基金项目(2021A1515012063);中国科学院青年创新促进会人才项目(2021350);生物基材料与绿色造纸国家重点实验室开放基金项目(GZKF202024);江苏省自然科学基金青年基金项目(BK20180548);广东省科技计划项目(2017A020216009);广东省新能源和可再生能源研究开发与应用重点实验室开放基金项目(Y909ks1001)

Abstract

Abstract:

The production of high-valued levoglucosan from lignocellulose via fast pyrolysis is one of the hot spots in research, and the low yield of levoglucosan is the main factor limiting its technological development. This article discusses the influence of cellulose structure and lignocellulosic components on the yield of levoglucosan, and summarizes the research status of various pretreatments and catalytic pyrolysis to promote the production of levoglucosan. Finally the future research direction is looked forward.

Key words: lignocellulose, fast pyrolysis, levoglucosan, pretreatment

摘要：

将木质纤维素快速热解转化为高价值的左旋葡聚糖是国内外研究的热点之一，而左旋葡聚糖产率低是限制其工艺发展的主要因素。论述了纤维素的结构以及木质纤维素的组分对左旋葡聚糖产率的影响，并归纳总结各种预处理及催化热解促进左旋葡聚糖生成的研究现状，最后对未来的研究方向进行了展望。

关键词: 木质纤维素, 快速热解, 左旋葡聚糖, 预处理

CLC Number:

S 216.2

JIANG Liqun,YUE Yuanmao,XU Lujiang,QIAN Le,LIU Shijun,ZHAO Zengli,LI Haibin,LIAO Yanfen. Pretreatments promote levoglucosan production from lignocellulose via fast pyrolysis[J]. CIESC Journal, 2021, 72(4): 1825-1832.

蒋丽群,岳元茂,徐禄江,钱乐,刘世君,赵增立,李海滨,廖艳芬. 预处理促进木质纤维素快速热解生成左旋葡聚糖[J]. 化工学报, 2021, 72(4): 1825-1832.

Figures/Tables 2

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预处理方式	原料	主要结构与组分变化	热解反应器	LG产率变化	优势	劣势	文献
球磨	微晶纤维素	CrI和DP降低	CDS	从14.7%(质量)升至24.1%(质量)^①	无废水等后续处理	低性价比	[28]
酸洗	甘蔗渣	AAEMs、无定形纤维素和半纤维素被脱除，CrI提高	CDS	从12.0%(质量)升至43.8%(质量)^①	条件温和，操作简单	需要去除残留酸，提高了生产成本	[13]
碱	玉米芯	AAEMs和木质素被脱除，CrI提高	CDS	从3.0%升至34.8%^②	条件温和，同时抑制微生物抑制剂的生成，有助于进一步发酵	成本较高	[29]
离子液体	甘蔗渣	AAEMs有效脱除，CrI降低	CDS	增幅可达261.9%^②	降低生物油的酸性，离子液体易回收，可重复使用	生产成本和能耗高	[30]
甘油	玉米芯	AAEMs和木质素被脱除，CrI提高	CDS	从6.9%(质量)升至44.5%(质量)^①	甘油廉价易得	反应温度高	[31]
粗甘油	甘蔗渣	AAEMs和木质素有效脱除，CrI提高	CDS	从8.4%(质量)升至25.2%(质量)^①	提高了粗甘油的利用价值，具有经济效益	反应温度高	[32]
水热	桉木	AAEMs和半纤维素含量降低	500℃流化床	从4.13%(质量)升至18.00%(质量)^①	环保绿色，操作简单	反应温度高	[33]
生物	玉米秸秆	木质素被有效降解	CDS	增加了183.3%^②	条件温和，设备简单，节能环保，副反应和抑制物含量少	反应时间长	[34]
酸浸渍	柳枝	AAEMs被钝化为催化活性更低的盐	GC450/MS320	从2.3%(质量)升至16.8%(质量)^①	降低了酸洗的成本	促进木质素向焦油的转化，可能使反应器结垢	[35]
酸洗+酸浸渍	花旗松	AAEMs被脱除	CDS	提高50%以上^②	残留酸可进一步催化生成脱水糖的反应	成本更高，对设备耐腐蚀性要求高	[36]

预处理方式	原料	主要结构与组分变化	热解反应器	LG产率变化	优势	劣势	文献
球磨	微晶纤维素	CrI和DP降低	CDS	从14.7%(质量)升至24.1%(质量)^①	无废水等后续处理	低性价比	[28]
酸洗	甘蔗渣	AAEMs、无定形纤维素和半纤维素被脱除，CrI提高	CDS	从12.0%(质量)升至43.8%(质量)^①	条件温和，操作简单	需要去除残留酸，提高了生产成本	[13]
碱	玉米芯	AAEMs和木质素被脱除，CrI提高	CDS	从3.0%升至34.8%^②	条件温和，同时抑制微生物抑制剂的生成，有助于进一步发酵	成本较高	[29]
离子液体	甘蔗渣	AAEMs有效脱除，CrI降低	CDS	增幅可达261.9%^②	降低生物油的酸性，离子液体易回收，可重复使用	生产成本和能耗高	[30]
甘油	玉米芯	AAEMs和木质素被脱除，CrI提高	CDS	从6.9%(质量)升至44.5%(质量)^①	甘油廉价易得	反应温度高	[31]
粗甘油	甘蔗渣	AAEMs和木质素有效脱除，CrI提高	CDS	从8.4%(质量)升至25.2%(质量)^①	提高了粗甘油的利用价值，具有经济效益	反应温度高	[32]
水热	桉木	AAEMs和半纤维素含量降低	500℃流化床	从4.13%(质量)升至18.00%(质量)^①	环保绿色，操作简单	反应温度高	[33]
生物	玉米秸秆	木质素被有效降解	CDS	增加了183.3%^②	条件温和，设备简单，节能环保，副反应和抑制物含量少	反应时间长	[34]
酸浸渍	柳枝	AAEMs被钝化为催化活性更低的盐	GC450/MS320	从2.3%(质量)升至16.8%(质量)^①	降低了酸洗的成本	促进木质素向焦油的转化，可能使反应器结垢	[35]
酸洗+酸浸渍	花旗松	AAEMs被脱除	CDS	提高50%以上^②	残留酸可进一步催化生成脱水糖的反应	成本更高，对设备耐腐蚀性要求高	[36]

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Pretreatments promote levoglucosan production from lignocellulose via fast pyrolysis

预处理促进木质纤维素快速热解生成左旋葡聚糖

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