The invention relates to a plate-type adsorption and
desorption device for purifying and recovering volatile organic matters in
exhaust gas, which comprises a framework and a plurality of
thin metal heat transfer plates. The
thin metal heat transfer plates are fixed on the framework in sequence; the edge lining of adjacent two
thin metal heat transfer plates is compressed by a
gasket; four corners of each thin
metal heat transfer plate are provided with through holes so that two channels are formed; and the
exhaust gas containing volatile organic matters, cold liquid and hot liquid or steam flow through the through holes on two sides of the thin
metal heat transfer plate alternatively to exchange heat. The invention has the advantages that: (1) the flow velocity of the fluid on two sides of the surfaces of the thin
metal heat transfer plates is high, the total
heat transfer coefficient is high, and the heat transfer is changed; (2) the
exhaust gas and the
solid adsorbent can contact more fully, the flow velocity of the exhaust gas is high, and the transfer
mass is strengthened; (3) the plate-type adsorption and
desorption device has a compact structure, the number of the thin metal heat transfer plates can be increased and decreased according to needs of productivity, or the units can be connected in parallel; (4) the heat transfer area of
unit volume is large, and the consumption of metal material is low; (5) the plate-type adsorption and
desorption device has high operational flexibility and is convenient to move to work; and (6) the plate-type adsorption and desorption device has the operating pressure of 1.0MPa to 1.2MPa or 0.1MPa.