GAS CONCENTRATOR

To provide a gas concentrator which can stably supply high-concentration carbon dioxide through the year, and also can suppress running cost.SOLUTION: A gas concentrator comprises: a honeycomb rotor which enables adsorption and desorption of carbon dioxide contained in a prescribed raw material gas, and in which at least an adsorption zone for adsorbing carbon dioxide and a desorption zone for desorbing carbon dioxide are set; a cooling part which cools the raw material gas introduced into the adsorption zone of the honeycomb rotor; a heating part which heats the raw material gas introduced into the desorption zone of the honeycomb rotor; a heat exchanger which heats or cools the adsorbed gas which has passed through the adsorption zone of the honeycomb rotor; and a heat pump having an evaporator constituting the cooling part, and a condenser constituting the heating part.SELECTED DRAWING: Figure 1 【課題】 通年で安定的に高濃度の二酸化炭素を供給できると共に、ランニングコストも抑制できる気体濃縮装置を提供する。【解決手段】 気体濃縮装置は、所定の原料気体に含まれる二酸化炭素を吸着及び脱着可能とされ、当該二酸化炭素を吸着する吸着ゾーンと当該二酸化炭素を脱着する脱着ゾーンが少なくとも設定されるハニカムロータと、当該ハニカムロータの吸着ゾーンに導入される前記原料気体を冷却する冷却部と、前記ハニカムロータの脱着ゾーンに導入される前記原料気体を加熱する加熱部と、前記ハニカムロータの吸着ゾーンを通過した吸着済み気体を加熱又は冷却する熱交換器と、前記冷却部をなす蒸発器、及び、前記加熱部をなす凝縮器を有するヒートポンプとを備える。【選択図】 図１