Cooler for Feed Gas Of Low-Temperature Methanol Washing

Abstract

The invention relates to a cooler for low-temperature methanol washing gas, which comprises a first heat exchanger and a second heat exchanger. The first heat exchanger includes a first housing, a first board, and a first heat exchange tube. The first housing is provided with a first feed gas inlet, a first feed gas outlet, a first heat transfer medium inlet, and a first heat transfer medium outlet. The second heat exchanger includes a second housing, a second board, and a second heat exchange tube. The second housing is provided with a second feed gas inlet, a second feed gas, a second heat transfer medium inlet, and a second heat transfer medium outlet. The second housing and the second board of the second heat exchanger may be made with a relatively thin plate, thereby enormously reducing the material and manufacturing cost for the invention with meeting the requirements of the production.

1 . A cooler for low-temperature methanol washing gas, comprising:
 a heat exchanger, which comprises a first heat exchanger, and a second heat exchanger, wherein the first heat exchanger includes a first housing, a first board, and a first heat exchange tube, with a first end and a second end, located inside the first housing and supported by the first board, the first housing is provided with a first feed gas inlet, a first feed gas outlet, a first heat transfer medium inlet which communicates with the first end of the first heat exchange tube, and a first heat transfer medium outlet which communicates with the second end of the first heat exchange tube,   the second heat exchanger includes a second housing, a second board, and a second heat exchange tube, with a first end and a second end, located inside the second housing and supported by the second board, the second housing is provided with a second feed gas inlet which communicates with the first end of the second heat exchange tube, a second feed gas outlet which communicates with the second end of the second heat exchange tube, a second heat transfer medium inlet, and a second heat transfer medium outlet.   
     
     
         2 . The cooler  claim 1 , wherein the first housing is provided with a plurality of heat transfer medium inlets and a plurality of heat transfer medium outlets, at least one heat transfer medium inlet acting as a CO 2  gas inlet, at least one heat transfer medium inlet acting as a synthesis gas inlet, at least one heat transfer medium outlet acting as a corresponding CO 2  gas outlet, and at least one heat transfer medium outlet acting as synthesis gas outlet.