Abstract The Heatpipe Reformer technology allows the generation of hydrogen-rich, pressurized synthesis gas from solid feedstock like lignite or biomass. The resulting high hydrogen partial pressure and thus driving force makes it suitable for membrane separation. This work promotes the application of hydrogen permeable membranes as hydrogen separators directly in the reformer. This should allow a high hydrogen yield due the shift of the gasification reactions to the product side when hydrogen is removed continuously. The material of choice for this task is nickel as it combines good hydrogen permeability with good mechanical properties at the operation temperature of biomass gasification of 800 °C. The experimental section presents measurements with a bundle of nickel membranes used for the demonstration of the shift of different gas mixtures to the product side by hydrogen removal. Hydrogen removal enhanced CO and CH 4 conversion at an operation temperature of 800 °C. A high purity of at least 99.9% was achieved by the highly selective solution-diffusion process of the separation. The experimental data was also used for an energy balance of the membrane process to allow a proper membrane layout in terms of membrane area per hydrogen production. As a last step, the membrane bundle was applied directly in the Heatpipe Reformer, an allothermal pressurized gasifier. It produced 200 ml min − 1 of hydrogen and showed no signs of degradation or fouling. This proof of concept showed the suitability of nickel membranes for hydrogen separation under gasification conditions.

中文翻译：

---

使用镍膜重整器从固体原料制氢

摘要 热管重整器技术允许从褐煤或生物质等固体原料中产生富含氢气的加压合成气。由此产生的高氢分压和驱动力使其适用于膜分离。这项工作促进了氢渗透膜作为氢分离器直接在重整器中的应用。由于当连续去除氢气时气化反应转移到产物侧，这应该允许高氢气产率。这项任务的首选材料是镍，因为它在 800 °C 的生物质气化操作温度下结合了良好的氢渗透性和良好的机械性能。实验部分展示了使用一束镍膜进行的测量，用于演示通过去除氢气将不同的气体混合物转移到产品侧。在 800 °C 的操作温度下，除氢提高了 CO 和 CH 4 的转化率。通过分离的高选择性溶液扩散过程实现了至少 99.9% 的高纯度。实验数据还用于膜过程的能量平衡，以允许在每次产氢的膜面积方面进行适当的膜布局。作为最后一步，膜束直接应用于热管重整器，一种异热加压气化器。它产生了 200 ml min - 1 的氢气并且没有显示出降解或结垢的迹象。