Low-temperature catalytic gasification of lignin and cellulose with a ruthenium catalyst in supercritical water
Low-temperature catalytic gasification of lignin and cellulose with a ruthenium catalyst in supercritical water
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DOI：
10.1021/ef034026y
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发表时间：
2004-03-01
期刊：
影响因子：
5.3
通讯作者：
Arai, K
中科院分区：
文献类型：
--
作者：
Osada, M;Sato, T;Arai, K
木质素和纤维素气化在400 degreesC的气体产率分别为30%和70%，在超临界水与钌催化剂。在这两种情况下，主要的气体产物是CH 4并且没有形成固体产物。在没有水或催化剂的情况下，木质素和纤维素轻微气化并形成棕色固体产物。甲醛的分解也表现在超临界水中。甲醛在钌催化剂作用下迅速分解为CH 4、CO2和H2-等气体，而甲醛在无催化剂条件下分解为甲醇和CO2。在超临界水中钌催化转化生物质是一种在400 ℃左右进行生物质气化的有效方法。
Lignin and cellulose were gasified at 400 degreesC with gas yields of 30% and 70%, respectively, in supercritical water with a ruthenium catalyst. In both cases, the main gas product was CH4 and no solid product was formed. Without water or catalyst, lignin and cellulose were gasified slightly and a brown solid product was formed. The decomposition of formaldehyde was also demonstrated in supercritical water. Formaldehyde was rapidly decomposed to gases such as CH4, CO2, and H-2 with ruthenium, whereas formaldehyde was converted into methanol and CO2 without catalyst. The catalytic conversion of biomass with ruthenium in supercritical water is an efficient method for biomass gasification at temperatures of similar to400 degreesC.