杉木屑分段热解制备木醋液及其特性研究

doi:10.3969/j.issn.0253-2417.2019.02.014

林产化学与工业 ›› 2019, Vol. 39 ›› Issue (2): 96-102.doi: 10.3969/j.issn.0253-2417.2019.02.014

杉木屑分段热解制备木醋液及其特性研究

卢辛成^1,^2,³(),蒋剑春^1,^2,*(),何静³,孙康^1,²,孙云娟^1,²

1. 中国林业科学研究院林产化学工业研究所；生物质化学利用国家工程实验室；国家林业局林产化学工程重点开放性实验室；江苏省生物质能源与材料重点实验室, 江苏南京 210042
2. 南京林业大学江苏省林业资源高效加工利用协同创新中心，江苏南京 210037
3. 北京林业大学材料科学与技术学院，北京 100083

收稿日期:2018-11-29 出版日期:2019-04-25 发布日期:2019-05-08
通讯作者: 蒋剑春 E-mail:xinze1983@163.com;bio-energy@163.com
作者简介:卢辛成(1985—)，男，内蒙古包头人，助理研究员，博士生，研究方向为炭材料制备与应用；E-mail：xinze1983@163.com
基金资助:
中国林科院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2018SY029);江苏省生物质能源与材料重点实验室基本科研业务费项目(JSBEM-S-201606)

Preparation and Properties of Wood Vinegar from Pyrolysis of Fir Sawdust Under Different Temperatures

Xincheng LU^1,^2,³(),Jianchun JIANG^1,^2,*(),Jing HE³,Kang SUN^1,²,Yunjuan SUN^1,²

1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
2. Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
3. College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China

Received:2018-11-29 Online:2019-04-25 Published:2019-05-08
Contact: Jianchun JIANG E-mail:xinze1983@163.com;bio-energy@163.com
Supported by:
中国林科院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2018SY029);江苏省生物质能源与材料重点实验室基本科研业务费项目(JSBEM-S-201606)

摘要/Abstract

摘要：

以杉木屑为原料，在固定床反应器上研究了分段热解制备木醋液及其特性。实验结果表明：≥150~250 ℃为杉木屑热解最活跃阶段，木醋液得率最高，达到34.09%；在该温度段木醋液组分中GC含量最高为酚类物质，其次为酸类物质。木醋液中有机物GC含量随热解温度升高而增加，当热解温度大于150 ℃后，有机物可达48%左右。不同热解温度段各类有机物GC含量不同，酸类物质在0~150 ℃最高(64.84%)，酚类(54.13%)和酮类(17.95%)物质在≥250~350 ℃最高，醛类物质在≥150~250 ℃最高(17.15%)。

关键词: 杉木屑, 木醋液, 分段热解, 有机成分

Abstract:

The preparation and properties of wood vinegar obtained by pyrolysis of fir sawdust under different temperatures were studied. The results showed that the most important pyrolysis phase of fir sawdust was 150-250 ℃, which obtained the most of wood vinegar and organic compounds. Under this pyrolysis phase, the highest yield of organic compound was phenols, and followed with acids. The relative content of organic compounds in wood vinegar was increased with the increasing of prolysis temperature, which is up to 48% after 150 ℃. The relative content for each kinds of organic compounds was different under various temperature range, the highest relative content of acids was in 0-150 ℃, while phenols and ketones in 250-350 ℃, and aldehydes in 150-250 ℃.

Key words: fir sawdust, wood vinegar, pyrolysis, organic component

中图分类号:

TQ35

卢辛成,蒋剑春,何静,孙康,孙云娟. 杉木屑分段热解制备木醋液及其特性研究[J]. 林产化学与工业, 2019, 39(2): 96-102.

Xincheng LU,Jianchun JIANG,Jing HE,Kang SUN,Yunjuan SUN. Preparation and Properties of Wood Vinegar from Pyrolysis of Fir Sawdust Under Different Temperatures[J]. Chemistry and Industry of Forest Products, 2019, 39(2): 96-102.

图/表 3

图1

表1

表2

不同温度段下杉木木醋液的组成"

类别 class	有机物名称 compounds	分子式 molecular formula	组分GC含量/ %GC contents of organic compounds
类别 class	有机物名称 compounds	分子式 molecular formula	0~150 ℃	≥150~250 ℃	≥250~350 ℃	≥350~450 ℃
酸类 acids	乙酸 acetic acid	C₂H₄O₂	2.75	9.17	1.67	1.66
	丙酸 propanoic acid	C₃H₆O₂	—	3.18	—	—
	庚酸 heptylic acid	C₇H₁₄O₂	13.79	—	—	14.00
	戊酸 pentanoic acid	C₆H₁₂O₂	44.65	6.75	2.03	13.95
	3-甲氧基-4-羟基苯甲酸 3-methoxy-4-hydroxybenzoic acid	C₉H₁₀O₄	3.65	3.76	13.68	—
酚类 phenols	苯酚 phenol	C₆H₆O	2.66	1.07	—	1.20
	2-甲氧基苯酚 2-methoxy phenol	C₇H₈O₂	3.99	6.99	8.21	8.03
	2-甲基苯酚 2-methyl phenol	C₇H₈O	—	1.78	—	—
	3-甲基苯酚 3-methyl phenol	C₇H₈O	1.03	2.20	—	—
	麦芽酚 maltol	C₆H₆O₂	—	2.52	1.67	—
	4-甲基-2-甲氧基苯酚 4-methyl-2-methoxy phenol	C₈H₁₀O₂	1.27	7.35	1.78	5.00
	邻苯二酚 1, 2-benzenediol	C₆H₆O₂	13.17	4.68	—	9.79
	4-乙基-2-甲氧基苯酚 4-ethyl-2-methoxy phenol	C₉H₁₂O₂	—	4.22	22.91	—
	丁子香酚 eugenol	C₁₀H₁₂O₂	—	4.18	—	—
	4-丙烯基-2-甲氧基苯酚 4-propenyl-2-methoxy phenol	C₁₀H₁₂O₂	—	4.10	8.13	—
	4-丙基-2-甲氧基苯酚 4-propyl-2-methoxy phenol	C₁₀H₁₄O₂	—	3.22	10.27	9.62
	2, 6-二甲氧基苯酚 2, 6-dimethoxy phenol	C₉H₁₂O₂	—	—	1.16	—
	3-甲基邻苯二酚 3-methyl-1, 2-benzenediol	C₇H₈O₂	3.57	—	—	1.43
	4-甲基邻苯二酚 4-methyl-1, 2-benzenediol	C₇H₈O₂	4.40	—	—	11.03
酮类 ketones	1-羟基-2-丁酮 1-hydroxy-2-butanone	C₄H₈O₂	—	1.38	—	—
	丙酮 acetone	C₃H₆O	1.54	2.75	0.94	0.81
	2-呋喃酮 2-furanone	C₄H₄O₂	—	2.54	—	—
	1, 2-环戊二酮 1, 2-cyclopentanedione	C₅H₆O₂	—	2.25	2.75	2.43
	3-甲基-1, 2-环戊二酮 3-methyl-1, 2-cyclopentanedione	C₆H₈O₂	1.67	3.58	3.00	1.18
	4-羟基-3-甲氧基苯乙酮 4-hydroxy-3-methoxyhypnone	C₉H₁₀O₃	—	2.08	3.71	11.92
	3-甲氧基苯乙酮 3-methoxyhypnone	C₉H₉O₂	—	—	7.55	—
醛类 aldehydes	糠醛 furfural	C₅H₄O₂	—	4.65	0.99	1.78
	5-甲基-2-糠醛 5-methyl-2-furfural	C₆H₆O₂	—	1.61	1.99	—
	5-羟甲基糠醛 5-hydroxymethylfurfural	C₆H₇O₃	—	7.10	2.19	—
	香草醛 vanillin	C₈H₈O₃	—	3.79	—	—
醇类 alcohols	2-呋喃甲醇 2-furfuryl alcohol	C₅H₆O₂	—	—	1.28	—
醇类 alcohols	4-羟基-3-甲氧基苯乙醇 4-hydroxy-3-methoxy phenethyl alcohol	C₉H₁₂O₃	1.86	3.10	4.09	6.17

表2

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温度/℃ temp.	木醋液得率/% yield of wood vinegar	有机物/% organic components
0~150	15.47	14.39
≥150~250	34.09	45.45
≥250~350	3.50	47.97
≥350~450	0.50	48.27

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杉木屑分段热解制备木醋液及其特性研究

Preparation and Properties of Wood Vinegar from Pyrolysis of Fir Sawdust Under Different Temperatures

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