Goto Motonobu, Obuchi Ryusaku, Hirose Tsutomu, Sakaki Tsuyoshi, Shibata Masao
Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan.
Bioresour Technol. 2004 Jul;93(3):279-84. doi: 10.1016/j.biortech.2003.11.017.
Sub- and supercritical water have been focused on as an environmentally attractive reaction media where organic materials can be decomposed into smaller molecules. We applied a hydrothermal reaction in subcritical water to the treatment of rabbit food as a model municipal solid waste. The reaction was carried out in a batch reactor at the temperature range of 473-623 K or in a semi-continuous reactor with the temperature profile from 473 to 573 K. The liquid reaction products were separated into water-soluble and water-insoluble parts. The water-soluble part was analyzed in terms of glucose and organic acids. For the batch reactor, the largest amount of water-soluble component was approximately 50%. Major organic acids detected were acetic acid and lactic acid. The largest yields were 2.6% for acetic acid and 3.2% for lactic acid. The largest yield of glucose was 33% at 523 K. For the semi-continuous reactor, the glucose yields were 11.5%, 3.9% and 8.7% in each fraction obtained at 473, 523, and 573 K, respectively.
亚临界水和超临界水作为一种对环境有吸引力的反应介质而受到关注，在这种介质中有机材料可分解为小分子。我们将亚临界水中的水热反应应用于作为城市固体废物模型的兔饲料处理。反应在间歇式反应器中于473 - 623 K的温度范围内进行，或在半连续反应器中于473至573 K的温度分布下进行。液体反应产物被分离为水溶性和水不溶性部分。对水溶性部分进行了葡萄糖和有机酸方面的分析。对于间歇式反应器，水溶性成分的最大量约为50%。检测到的主要有机酸是乙酸和乳酸。乙酸的最大产率为2.6%，乳酸的最大产率为3.2%。葡萄糖在523 K时的最大产率为33%。对于半连续反应器，在473 K、523 K和573 K分别获得的各馏分中，葡萄糖产率分别为11.5%、3.9%和8.7%。
