Abstract
This is the first work that describes the application of mass spectrometry to the real-time observation of liquid products of hydrothermal reactions in a continuous reactor. A real-time mass spectrometric analysis (real-time MS analysis) system was developed and designed to elucidate products of glucose decomposition during the hydrothermal treatment process. This was achieved by connecting a continuous-flow reactor with a quadrupole mass analyzer using custom-built connection fittings. The effects of residence time and temperature of hydrothermal treatment on glucose decomposition products were investigated. The temperatures were between 140 and 220 °C, and reaction times were between 5 and 20 min. The real-time MS method investigated the products of glucose decomposition, and cold samples were characterized using high-performance liquid chromatography (HPLC). At 140 °C, glucose decomposition is not complete, which was confirmed by a mass spectrum of a glucose standard. At a temperature of 180 °C or abov...
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