Hydrogen purification system removes impurities from the hydrogen generated from onboard or stationary fuel reforming systems. It is also referred as hydrogen separator. A mixture of hydrogen and impurities is applied to a container holding hydride forming material capable of adsorbing hydrogen and impurities. After hydrogen and impurities are adsorbed by the hydride forming material in the container, the temperature and pressure in the container are controlled to enable release of the hydrogen from the material. The released hydrogen is then delivered to a utilization unit.