Gas-liquid contact apparatus

Claim 1

An apparatus for obtaining interphase contact between fluids, particularly gas and liquid, comprising a substantially vertical housing having at least a side wall, and upper and lower mutually spaced partition walls defining a gas and liquid contact chamber therebetween, said chamber containing a plurality of light weight contact bodies, a gas inlet chamber under the lower partition wall, a gas outlet chamber over the upper partition wall, said upper and lower partition walls being at least partly penetratable to fluids and not penetratable to the contact bodies, means to supply liquid to the contact chamber, said gas inlet chamber having at least one inlet opening arranged to be connected with gas supply means, and a gas inlet passage between the gas inlet chamber and the contact chamber, wherein said lower partition has a bottom wall between the contact chamber and the gas inlet chamber, said bottom wall having a gas passage opening with a cross section substantially smaller than the cross section of the contact chamber, the bottom wall sloping downwardly and inwardly from the casing side wall toward the passage opening, The liquid drainage means comprising an annular liquid-collecting gutter adjacent the lower end of the bottom wall surrounding the opening, said gutter having its top at least partially open and having a rounded inner wall portion defining a gas passage throat with upwardly decreasing cross section, said gutter having drain means therein to discharge from the apparatus a portion of the liquid collected in the gutter, the remaining portion being recirculated into said throat over said inner gutter wall portion, and means to inject fresh liquid into the gas flowing through said opening including a liquid supply nozzle mounted centrally under the gas passage opening and projecting a jet of liquid upwardly therethrough.

Claim 2

An apparatus for obtaining interphase contact between fluids, particularly gas and liquid, comprising a substantially vertical housing having at least a side wall, and upper and lower mutually spaced partition walls defining a gas and liquid contact chamber therebetween, said chamber containing a plurality of light weight contact bodies, a gas inlet chamber under the lower partition wall, a gas outlet chamber over the upper partition wall, said upper and lower partition walls being at least partly penetratable to fluids and not penetratable to the contact bodies, means to supply liquid to the contact chamber, said gas inlet chamber having at least one inlet opening arranged to be connected with gas supply means, and a gas inlet passage between the gas inlet chamber and the contact chamber, wherein said lower partition has a bottom wall between the contact chamber and the gas inlet chamber, said bottom wall having a gas passage opening with a cross section substantially smaller than the cross section of the contact chamber, the bottom wall sloping downwardly and inwardly from the casing side wall toward the passage opening, The liquid drainage means comprising an annular liquid-collecting gutter adjacent the lower end of the bottom wall surrounding the opening, said gutter having its top at least partially open and having a rounded inner wall portion defining a gas passage throat with upwardly decreasing cross section, said gutter having drain means therein to discharge from the apparatus a portion of the liquid collected in the gutter, the remaining portion being recirculated into said throat over said inner gutter wall portion, and means to inject fresh liquid into the gas flowing through said opening including a liquid supply nozzle mounted centrally under the gas passage opening and projecting a jet of liquid upwardly therethrough.