Thermal decomposition of guaiacol in sub- and supercritical water and its kinetic analysis
Thermal decomposition of guaiacol in sub- and supercritical water and its kinetic analysis
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DOI：
10.1007/s10163-010-0309-6
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发表时间：
2011-02
影响因子：
3.1
通讯作者：
Wahyudiono;M. Sasaki;M. Goto
中科院分区：
文献类型：
--
作者：
Wahyudiono;M. Sasaki;M. Goto
由于人们认识到需要可持续的全球碳循环和环境考虑，作为一种再循环过程，将生物质废物转化为资源的问题正受到越来越多的关注。目前正在开发几种处理方法。水热处理是最有效的方法之一，因为水在高温高压下表现为具有显着性质的反应介质。采用间歇式反应器研究了愈创木酚作为生物质模型化合物在483-563 K亚临界水中和653-673 K超临界水中的反应行为。愈创木酚可以被认为是木质素中存在的芳香环结构的代表，木质素是木质生物质的主要组分。通过气相色谱/质谱法鉴定水性产品中形成的化学物质，并使用高效液相色谱法进行定量。讨论了压力和反应时间对愈创木酚转化过程的影响。所获得的结果表明，该方法具有有效的有机废物转化的潜力。
The conversion of biomass waste into resources as a recycling process is receiving increased interest due to the perceived need for a sustainable global carbon cycle and environmental considerations. Several treatment processes are being developed. Hydrothermal treatment is one of the most effective approaches, because water at high temperatures and high pressures behaves as a reaction medium with remarkable properties. In this work, the reaction behavior of guaiacol as a biomass model compound was studied in subcritical water at 483–563 K and in supercritical water at 653–673 K using a batch reactor. Guaiacol can be considered representative of the aromatic ring structures present in lignin, a major component of woody biomass. The chemical species formed in aqueous products were identified by gas chromatography/mass spectrometry and quantified using high-performance liquid chromatography. The effect of pressure and reaction time on the conversion process of guaiacol is discussed. The results obtained indicate that this method has potential for efficient organic waste conversion.