There are various attempts to industrialize the supercritical water gasification (SCWG) of wet biomass process, however, there are still process challenges to overcome. Such challenges include slurry pumpability, energy efficiency, low conversion, char and tar formation, and clogging problems due to salt precipitation. Fortunately, some of the aforementioned challenges can be eliminated by having long residence times, high heating rates and utilization of fluidized bed reactors. This study presents the first results and experiences obtained from the TU Delft/Gensos semi-pilot scale setup which has a capacity of 50 kg/h and incorporates a fluidized bed reactor. A dry starch concentration of 4.4 wt % was used as feedstock. Reactor temperatures of 500 °C, 550 °C and 600 °C, and the mass flow rates of 24.5 kg/h and 35 kg/h were tested. The results indicate that the heating profile in the heat exchanger and the residence time at higher temperatures (>500 °C) play a significant role in the conversion efficiencies. No clogging problem was observed, however small quantities of char (2.3 wt % at highest) and oil production (10.4 wt % at highest) were observed. The highest carbon gasification efficiency was 73.9% and this was obtained at a reactor temperature of 600 °C and at a feed flow rate of 24.5 kg/h.

有多种尝试使湿生物质工艺的超临界水气化（SCWG）工业化，但是，仍存在需要克服的工艺难题。这些挑战包括泥浆的可泵送性，能源效率，低转化率，焦炭和焦油形成以及由于盐沉淀引起的堵塞问题。幸运的是，可以通过具有较长的停留时间，较高的加热速率和利用流化床反应器来消除一些上述挑战。这项研究展示了从TU Delft / Gensos半中试规模装置获得的第一批结果和经验，该装置的容量为50 kg / h，并装有流化床反应器。使用4.4重量％的干淀粉浓度作为原料。测试反应器温度为500°C，550°C和600°C，质量流率分别为24.5 kg / h和35 kg / h。结果表明，换热器中的加热曲线和在较高温度（> 500°C）下的停留时间在转化效率中起着重要作用。没有观察到堵塞问题，但是观察到少量的焦炭（最高2.3重量％）和产油量（最高10.4重量％）。最高的碳气化效率为73.9％，这是在600℃的反应器温度和24.5 kg / h的进料流速下获得的。