(DE19629500-C1)      A multi-washer for cleaning raw synthesis gas from the gasification of municipal and other wastes includes a horizontal vessel (1) through which the gas flows in the axial direction. The vessel is internally divided by partitions (5) into a number of consecutive chambers (2,3,4) in which the gas is washed with different fluids (at different temperatures where appropriate) to remove impurities such as carbon particles, sulphur oxides, and heavy metals. Each washing chamber is provided with its own pump header tank (6,7,8) outside the vessel, and at least one mass transfer device (9), inclined at an angle to the vessel axis, is provided in each chamber. Each mass transfer device is sprayed with a different quantity of a wash liquor on each side, so that the wash liquor permeates through the mass transfer device and flows out in a desired direction. Also claimed is a process for total cleaning of the raw synthesis gas in a horizontal vessel with consecutive internal washing chamber s.    ADVANTAGES -   The washer requires comparatively little space for a given washing efficiency, and the mass transfer devices are self-cleaning and insensitive to any blockage which does occur.    (CA2210981-A)      A multi-washer for cleaning raw synthesis gas from the gasification of municipal and other wastes includes a horizontal vessel (1) through which the gas flows in the axial direction. The vessel is internally divided by partitions (5) into a number of consecutive chambers (2,3,4) in which the gas is washed with different fluids (at different temperatures where appropriate) to remove impurities such as carbon particles, sulphur oxides, and heavy metals. Each washing chamber is provided with its own pump header tank (6,7,8) outside the vessel, and at least one mass transfer device (9), inclined at an angle to the vessel axis, is provided in each chamber. Each mass transfer device is sprayed with a different quantity of a wash liquor on each side, so that the wash liquor permeates through the mass transfer device and flows out in a desired direction. Also claimed is a process for total cleaning of the raw synthesis gas in a horizontal vessel with consecutive internal washing chamber s.    ADVANTAGES -   The washer requires comparatively little space for a given washing efficiency, and the mass transfer devices are self-cleaning and insensitive to any blockage which does occur.    (JP10113533-A)      A multi-washer for cleaning raw synthesis gas from the gasification of municipal and other wastes includes a horizontal vessel (1) through which the gas flows in the axial direction. The vessel is internally divided by partitions (5) into a number of consecutive chambers (2,3,4) in which the gas is washed with different fluids (at different temperatures where appropriate) to remove impurities such as carbon particles, sulphur oxides, and heavy metals. Each washing chamber is provided with its own pump header tank (6,7,8) outside the vessel, and at least one mass transfer device (9), inclined at an angle to the vessel axis, is provided in each chamber. Each mass transfer device is sprayed with a different quantity of a wash liquor on each side, so that the wash liquor permeates through the mass transfer device and flows out in a desired direction. Also claimed is a process for total cleaning of the raw synthesis gas in a horizontal vessel with consecutive internal washing chamber s.    ADVANTAGES -   The washer requires comparatively little space for a given washing efficiency, and the mass transfer devices are self-cleaning and insensitive to any blockage which does occur.    (US5879434-A)      A multi-washer for cleaning raw synthesis gas from the gasification of municipal and other wastes includes a horizontal vessel (1) through which the gas flows in the axial direction. The vessel is internally divided by partitions (5) into a number of consecutive chambers (2,3,4) in which the gas is washed with different fluids (at different temperatures where appropriate) to remove impurities such as carbon particles, sulphur oxides, and heavy metals. Each washing chamber is provided with its own pump header tank (6,7,8) outside the vessel, and at least one mass transfer device (9), inclined at an angle to the vessel axis, is provided in each chamber. Each mass transfer device is sprayed with a different quantity of a wash liquor on each side, so that the wash liquor permeates through the mass transfer device and flows out in a desired direction. Also claimed is a process for total cleaning of the raw synthesis gas in a horizontal vessel with consecutive internal washing chamber s.    ADVANTAGES -   The washer requires comparatively little space for a given washing efficiency, and the mass transfer devices are self-cleaning and insensitive to any blockage which does occur.    (JP3079067-B2)      A multi-washer for cleaning raw synthesis gas from the gasification of municipal and other wastes includes a horizontal vessel (1) through which the gas flows in the axial direction. The vessel is internally divided by partitions (5) into a number of consecutive chambers (2,3,4) in which the gas is washed with different fluids (at different temperatures where appropriate) to remove impurities such as carbon particles, sulphur oxides, and heavy metals. Each washing chamber is provided with its own pump header tank (6,7,8) outside the vessel, and at least one mass transfer device (9), inclined at an angle to the vessel axis, is provided in each chamber. Each mass transfer device is sprayed with a different quantity of a wash liquor on each side, so that the wash liquor permeates through the mass transfer device and flows out in a desired direction. Also claimed is a process for total cleaning of the raw synthesis gas in a horizontal vessel with consecutive internal washing chamber s.    ADVANTAGES -   The washer requires comparatively little space for a given washing efficiency, and the mass transfer devices are self-cleaning and insensitive to any blockage which does occur.