Abstract

Results of the microwave-assisted catalytic pyrolysis of lignin have been described. It has been shown that, in a medium of an inert gas (argon) and a hydrogen–argon mixture, the following maximum liquid yield is achieved: 33 and 36% for iron-containing catalyst samples and 45% for nickel-containing catalysts. The gas chromatography–mass spectrometry (GC/MS) method has been used to determine the qualitative composition of the liquid product fraction, which is mostly represented by phenol and anisol, i.e., derivatives of the monomeric units of lignin (coumaryl and coniferyl alcohols). Probable sites of interaction of the functional groups of the lignin surface with nanosized particles of nickel- and iron-containing catalysts have been studied by IR spectroscopy.

中文翻译：

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含铁和镍的微波辅助木质素转化为液体产品

摘要

已经描述了微波辅助木质素催化热解的结果。结果表明，在惰性气体（氩气）和氢-氩混合物的介质中，可实现以下最大液体收率：含铁催化剂样品为33％和36％，含镍催化剂为45％。气相色谱-质谱法（GC / MS）已用于确定液体产物级分的定性组成，主要由苯酚和茴香醚表示，即木质素单体单元的衍生物（香豆素和松柏醇） 。木质素表面的官能团与含镍和铁的催化剂的纳米级颗粒相互作用的可能位点已通过红外光谱研究。