This study focuses on the control of dimethyl ether (DME) autothermal reforming (ATR) process integrated with proton exchange membrane fuel cells to provide adequate external power for an on-board reformer hydrogen vehicle. ATR reaction was made over Pd–Zn/γ-Al₂O₃ catalyst, which provides higher selectivity to the hydrogen due to its good oxidation and reforming activities. Catalyst activity was tested experimentally by varying the temperature. The hydrogen volume fraction is close to 45% at the optimal temperature of 400 °C. The objective of the process control scheme was to control the ATR reactor's temperature and the hydrogen production rate. A combination of the feedforward control and the closed-loop control (based on PID control) was applied wherein the DME, and air flow rates were adjusted automatically, and steam was supplied excessively to promote reactions. Due to its good oxidation and reforming activity, it had a high selectivity to hydrogen. The experimental results showed that the volume fraction of hydrogen in the hydrogen-rich gas is close to 45% at the optimum temperature of 400 °C. The control strategy could ensure that the hydrogen production rate changed with the change of fuel cell load and did not affect the temperature of the autothermal reformer. In this way, the stable operation of the reformer was realized, and the fuel cell had a sufficient supply of hydrogen.

本研究的重点是控制与质子交换膜燃料电池集成的二甲醚 (DME) 自热重整 (ATR) 过程，为车载重整器氢车辆提供足够的外部电源。ATR反应是在Pd-Zn/ γ - Al ₂ O _{3 上进行的}催化剂，由于其良好的氧化和重整活性，它对氢气具有更高的选择性。通过改变温度以实验方式测试催化剂活性。在400°C的最佳温度下，氢气体积分数接近45%。过程控制方案的目标是控制 ATR 反应器的温度和氢气生产速率。应用前馈控制和闭环控制（基于 PID 控制）的组合，其中 DME 和空气流量自动调节，并过量供应蒸汽以促进反应。由于其良好的氧化和重整活性，它对氢气具有很高的选择性。实验结果表明，在400℃的最佳温度下，富氢气体中氢气的体积分数接近45%。该控制策略可以保证氢气产率随着燃料电池负荷的变化而变化，并且不影响自热重整器的温度。这样，实现了重整器的稳定运行，燃料电池有充足的氢气供应。