Feed gas removal and purification device

The utility model discloses a feed gas removal and purification device, which is used for absorbing acid gas in feed gas at a tower body part of a washing tower and comprises a washing pipe arranged at the tower top of the washing tower, and the outlet end of the washing pipe penetrates through the inner wall of the tower top and is positioned in a cavity reaching the interior of the tower top. The inlet end of the sprayer is fixedly connected with the outlet end of the washing pipe, and the outlet of the sprayer faces the inner cavity of the tower body. And the washing structure is horizontally arranged on the inner wall of the tower body, is detachably connected with the inner wall, and is used for guiding and collecting washing liquid and providing a convection absorption place for the raw material gas from the lower part of the tower body and the washing liquid, so that the washing liquid absorbs acid gas and carbon dioxide. When the feed gas rapidly passes through the tower plates, the feed gas can be in