| 摘要 |
Hydro xylamine is formed in a reactor through a partial hydrogenation of nitric oxide gas (NO) with hydrogen gas (H) in an aqueous medium with nitrogen gas (N) as an inert gas. The formation of the hydroxylamine forms nitrous oxide gas (NO). The gasses and the water vapor are flowed away from the reactor in a vent gas stream enabling recycling of the gasses. The NO is removed from the vent gas stream to reduce flammability. The method of removing NO comprises the steps of (a) flowing the vent gas through a nitrous oxide adsorbent material comprising particles such that the NO is adsorbed onto the particles; (b) forming a buffer zone comprising Nadjacent to the nitrous oxide adsorbent material; (c) flowing additional NO through the nitrous oxide adsorbent material to displace the other gas; and (d) desorbing the NO from the nitrous oxide adsorbent material. Once the NO is removed, the NO, H, and Nare recycled and re-used in the reactor to form additional hydroxylamine. The NO removed from the vent gas stream is of high purity and can be commercially sold or economically discarded. |
