The invention relates to a precipitation tube (1; 1) and to a precipitation tube bundle (100; 100) for a wet electrostatic precipitator, in particular for separating dusts, gases, and/or aerosols from exhaust gases. The precipitation tube (1; 1) is distinguished in that the precipitation tube is designed as a modular tube system, comprising at least two wall parts (2, 3), which each form a periphery segment (4, 5) of the inner periphery (6) of the precipitation tube (1; 1) and are connected to each other so as to form at least part of the inner circumference (6) of the precipitation tube (1; 1), and/or comprising at least two wall parts, which each form a length segment of the precipitation tube and are connected to each other so as to form at least part of the length of the precipitation tube. The precipitation tube bundle (100; 100) is distinguished in that the precipitation tube bundle is designed as a modular tube bundle system and, for this purpose, has a plurality of precipitation tubes (1; 1; 1; 50) and a supporting structure (110; 110; 110) combining the precipitation tubes (1; 1; 1; 50) as a bundle, on which supporting structure the precipitation tubes (1; 1; 1; 50) are detachably held by means of connecting elements (200). The invention further relates to a method for producing a precipitation tube bundle (100; 100).

The invention relates to a precipitation tube (1; 1) and to a precipitation tube bundle (100; 100) for a wet electrostatic precipitator, in particular for separating dusts, gases, and/or aerosols from exhaust gases. The precipitation tube (1; 1) is distinguished in that the precipitation tube is designed as a modular tube system, comprising at least two wall parts (2, 3), which each form a periphery segment (4, 5) of the inner periphery (6) of the precipitation tube (1; 1) and are connected to each other so as to form at least part of the inner circumference (6) of the precipitation tube (1; 1), and/or comprising at least two wall parts, which each form a length segment of the precipitation tube and are connected to each other so as to form at least part of the length of the precipitation tube. The precipitation tube bundle (100; 100) is distinguished in that the precipitation tube bundle is designed as a modular tube bundle system and, for this purpose, has a plurality of precipitation tubes (1; 1; 1; 50) and a supporting structure (110; 110; 110) combining the precipitation tubes (1; 1; 1; 50) as a bundle, on which supporting structure the precipitation tubes (1; 1; 1; 50) are detachably held by means of connecting elements (200). The invention further relates to a method for producing a precipitation tube bundle (100; 100).

The present invention relates to an ambient air purifier comprising an electric precipitator having a counter electrode and an emission electrode and is designed to precipitate liquid and/or solid particles from air to be purified while generating ozone, and a catalyst arranged downstream of the electric precipitator in the air flow direction for decomposing at least part of generated ozone.

The present invention relates to an ambient air purifier comprising an electric precipitator having a counter electrode and an emission electrode and is designed to precipitate liquid and/or solid particles from air to be purified while generating ozone, and a catalyst arranged downstream of the electric precipitator in the air flow direction for decomposing at least part of generated ozone.

Method and apparatus for cleaning pollution control equipment, such as particulate removal devices, including wet electrostatic precipitators (WESP). The apparatus may include a housing having a chamber, at least one process gas inlet in fluid communication with the chamber, a process gas outlet spaced from the at least one process gas inlet and in fluid communication with the chamber, one or more ionizing electrodes in the housing and one or more collection electrodes or plates in the housing. Sealing liquid is provided and introduced into the chamber in an amount sufficient to submerge the at least one process gas inlet and stop the flow of contaminated gas into the chamber.

Method and apparatus for cleaning pollution control equipment, such as particulate removal devices, including wet electrostatic precipitators (WESP). The apparatus may include a housing having a chamber, at least one process gas inlet in fluid communication with the chamber, a process gas outlet spaced from the at least one process gas inlet and in fluid communication with the chamber, one or more ionizing electrodes in the housing and one or more collection electrodes or plates in the housing. Sealing liquid is provided and introduced into the chamber in an amount sufficient to submerge the at least one process gas inlet and stop the flow of contaminated gas into the chamber.

In various aspects, systems and methods are provided for operating an oxygen-fired catalyst regenerator with flue gas recycle and CO.sub.2 capture. An oxygen-fired catalyst regenerator contrasts with an air-fired regenerator. The oxygen-fired catalyst regenerator substantially reduces nitrogen within the system, which facilitates CO.sub.2 capture by reducing the energy required to capture CO.sub.2. In various aspects, a first portion of the regenerator flue gas is passed to a CO.sub.2 capture system and a second portion is recycled to the regenerator. Before the flue gas is recycled or diverted to the CO.sub.2 capture, it is passed to various processes that remove and/or reduce SO.sub.x, NO.sub.x, particulate, and water content. In various aspects, a portion of the treated flue gas may be combined with substantially pure O.sub.2 and recycled to the regenerator.

In various aspects, systems and methods are provided for operating an oxygen-fired catalyst regenerator with flue gas recycle and CO.sub.2 capture. An oxygen-fired catalyst regenerator contrasts with an air-fired regenerator. The oxygen-fired catalyst regenerator substantially reduces nitrogen within the system, which facilitates CO.sub.2 capture by reducing the energy required to capture CO.sub.2. In various aspects, a first portion of the regenerator flue gas is passed to a CO.sub.2 capture system and a second portion is recycled to the regenerator. Before the flue gas is recycled or diverted to the CO.sub.2 capture, it is passed to various processes that remove and/or reduce SO.sub.x, NO.sub.x, particulate, and water content. In various aspects, a portion of the treated flue gas may be combined with substantially pure O.sub.2 and recycled to the regenerator.

The present invention relates to an aqueous separation liquid comprising at least 49.9 wt. % water, 5 to 50 wt. % of at least one organic water-soluble polyol, based on the total weight of the aqueous separation liquid, and at least one low molecular weight cellulose derivative as rheology modifier, and to the use of this liquid in a process for removing paint overspray from a paint spray booth.

The present invention relates to an aqueous separation liquid comprising at least 49.9 wt. % water, 5 to 50 wt. % of at least one organic water-soluble polyol, based on the total weight of the aqueous separation liquid, and at least one low molecular weight cellulose derivative as rheology modifier, and to the use of this liquid in a process for removing paint overspray from a paint spray booth.