Provided is a scrubber system in which by improving a structure of an existing scrubber inlet preventer, a diameter of the lower end of a second cleaning liquid buffer forming the lower end of the inlet preventer is extended, a separate nozzle is installed in a lower pipe part to prevent generated powder from blocking the lower end of the inlet preventer, a path of a material to be treated first descends along the inlet preventer and then first ascends along a first chamber and a second chamber, second descends to a third chamber again, wherein the an automatic pressure control system including a venturi is installed on the upper end of the third chamber to prevent a backflow of the material to be treated, and then is guided to a fourth chamber with a polypropylene absorber to second descend in the fourth chamber and discharged to an outlet.

A vertical scrubber (1) for exhaust gas from a marine vessel is described. An exhaust gas tube (2) is substantially coaxially arranged through the bottom of a lower scrubbing chamber (3) and is released though an exhaust gas outlet (20) being coaxially arranged through the top of an upper scrubbing chamber (13). A lower scrubbing chamber deflection body (4) is arranged above the opening of the exhaust gas tube (2) for redirecting the exhaust gas towards the walls of the scrubber and create turbulent gas flow, where one or more lower chamber water injector(s) (6, 6′) is (are) arranged above the lower scrubbing chamber deflection body (4), to introduce scrubbing water, and where a lower chamber exhaust gas outlet (12) is arranged at the top of the lower scrubbing chamber (3) as a coaxial constriction, for withdrawing the partly scrubbed exhaust gas from the first scrubbing chamber and introducing the gas into the upper scrubbing chamber (13).

A process-technology column including a novel liquid distributor which is to be as insensitive as possible to dirt or solids carried in the liquid and which can be operated over a load range as great as possible without the possibility of the delivered liquid being excessively easily entrained by the gas flow which rises in the column is provided. The liquid distributor includes a liquid feed for conducting a liquid and at least 2 nozzles connected thereto for producing a respective liquid jet. The nozzles are flat-jet nozzles for producing a respective flat jet. The flat-jet nozzles are so oriented that the flat jet produced by them impinges on a drain element which is arranged at the liquid distributor and at which the liquid of the flat jet can drain away.

Embodiments of false downcomers are described having a lip extending inwardly from a bottom portion of the wall of the false downcomer. The lip has a length sufficient to deflect downward vapor from exiting through the bottom opening.

Gas/liquid separation column, containing a device for dispensing a liquid, intended for a gas/liquid separation column, comprising: a plate, in which several orifices are arranged, through which the liquid is able to leave the dispensing device; a plurality of stacks extending from the plate, each stack being configured to be followed by the gas; a plurality of plugging means respectively arranged at one end of one of the stacks, each plugging means having a gutter shape allowing a first portion of the liquid to be collected; a plurality of troughs for directly collecting a second portion of the liquid, at least one part of the orifices being distributed in the base of said troughs, each plugging means comprising a first open longitudinal end and a second closed longitudinal end.

The gas separation device separates or captures a target gas component from a gas to be processed by: causing an absorbing liquid to flow down on a surface of a packing disposed inside a processing tank while supplying the gas to be processed containing the target gas component into the processing tank; bringing the absorbing liquid flowing down on the surface of the packing and the gas to be processed into gas-liquid contact; and thereby causing the absorbing liquid to absorb the target gas component contained in the gas to be processed. The packing includes at least one packing unit formed from multiple expanded metal plates, which are disposed vertically and arranged in parallel. Each expanded metal plate includes strands forming the openings which are arranged like stairs. Each strand is inclined to the vertical direction at an angle in a range from 48° to 73°.

A method for removing ammonia from a gas stream divides the gas steam into a plurality of separate gas streams and sprays a dilute acid solution into the streams. The acid solution is aqueous sulfuric acid and ammonium sulfate is produced. A device is used to divide the gas stream, the device having a plurality of conduits in fluid communication with a plenum. Spray nozzles are located in each conduit to spray the acid solution into the gas streams. The device creates less than 10 Pa back pressure to the gas stream.

A co-axial co-current contactor (CA-CCC) is described herein. The CA-CCC includes an outer annular support ring and an inner annular support ring configured to maintain the CA-CCC within an outer pipe and an inner pipe, respectively. The CA-CCC includes rich liquid flow channels located between the outer annular support ring and the inner annular support ring that are configured to allow a rich liquid stream to flow through the CA-CCC, and a central gas entry cone and gas flow channels configured to allow a gas stream to flow through the CA-CCC. The CA-CCC further includes radial blades configured to secure the central gas entry cone to the inner annular support ring and allow a lean liquid stream to flow into the central gas entry cone and the gas flow channels. The CA-CCC provides for efficient incorporation of liquid droplets formed from the lean liquid stream into the gas stream.

An ammonia-containing tail gas absorption system, comprising at least two sets of absorption devices, wherein at least two transport pipelines are provided at inlets of some of the absorption devices, and the transport pipelines are used to communicate the absorption devices with an ammonia-containing tail gas outlet of a reactor or other absorption devices. Valves are provided on the transport pipelines, and the valves are used to control the connection and disconnection of the transport pipelines so as to switch the series-parallel relationship between the sets of absorption devices.

Provided is a scrubber system in which by improving a structure of an existing scrubber inlet preventer, a diameter of the lower end of a second cleaning liquid buffer forming the lower end of the inlet preventer is extended, a separate nozzle is installed in a lower pipe part to prevent generated powder from blocking the lower end of the inlet preventer, a path of a material to be treated first descends along the inlet preventer and then first ascends along a first chamber and a second chamber, second descends to a third chamber again, wherein the an automatic pressure control system including a venturi is installed on the upper end of the third chamber to prevent a backflow of the material to be treated, and then is guided to a fourth chamber with a polypropylene absorber to second descend in the fourth chamber and discharged to an outlet.