重点介绍了山毛榉木、碱木质素和黑液水热液化生产的水炭

IF 2.5 3区 农林科学 Q1 FORESTRY
Maximilian Wörner, Ursel Hornung, Selhan Karagöz, Thomas Zevaco, Nicolaus Dahmen
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引用次数: 0

摘要

以往对生物质水热液化(HTL)的研究主要集中在生物油的生产上,忽视了重要的副产品碳氢化合物。本研究以山毛榉木、碱木质素和黑液为原料,在300℃和350℃的温度下加热20 min,深入研究了温度和生物质类型对碳氢化合物产率和性质的影响。产物的质量收率在25.92% ~ 32.70%之间。温度从300°C增加到350°C导致烃类质量产率下降。在300°C时,山毛榉木材的碳产量最高(51 wt%)。以碱木质素为原料,在300℃下的热值最高,为30.97 MJ/kg。固体碳核磁共振表明,黑液衍生的烃类含有缩合芳族结构。生物质的类型和温度对生成的烃类的特性都有显著影响。这项研究表明,由于其有利的能量含量和碳产量,碳氢化合物作为固体生物燃料具有前景,突出了其可持续能源应用的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Focus on hydrochars produced from hydrothermal liquefaction of beech wood, soda lignin and black liquor

Previous studies on the hydrothermal liquefaction (HTL) of biomass have primarily focused on bio-oil production, overlooking the significant hydrochar by-product. In this work, the HTL of beech wood, soda lignin, and black liquor was performed at temperatures of 300 °C and 350 °C for 20 min. The effect of temperature and biomass type on hydrochar yields and properties was thoroughly investigated. The mass yields of the hydrochars varied between 25.92 wt% and 32.70 wt%. An increase in temperature from 300 °C to 350 °C led to a decrease in hydrochar mass yields. The carbon yield was found to be highest (51 wt%) at 300 °C using beech wood. The highest heating value, 30.97 MJ/kg, was obtained with hydrochar derived from soda lignin at 300 °C. Solid-state carbon NMR demonstrated that the hydrochars derived from black liquor contain condensed aromatic structures. Both the type of biomass and temperature significantly influenced the characteristics of the resulting hydrochar. This research demonstrates that hydrochar holds promise as a solid biofuel due to its advantageous energy content and carbon yield, highlighting its potential for sustainable energy applications.

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来源期刊
European Journal of Wood and Wood Products
European Journal of Wood and Wood Products 工程技术-材料科学:纸与木材
CiteScore
5.40
自引率
3.80%
发文量
124
审稿时长
6.0 months
期刊介绍: European Journal of Wood and Wood Products reports on original research and new developments in the field of wood and wood products and their biological, chemical, physical as well as mechanical and technological properties, processes and uses. Subjects range from roundwood to wood based products, composite materials and structural applications, with related jointing techniques. Moreover, it deals with wood as a chemical raw material, source of energy as well as with inter-disciplinary aspects of environmental assessment and international markets. European Journal of Wood and Wood Products aims at promoting international scientific communication and transfer of new technologies from research into practice.
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