Particulate Removal

Particulates are commonly part of the problem when treating contaminated gas streams and removing them is crucial to successfully clean the gas. Where the solids are not handled correctly, the gas cleaning package may clog and foul, or may not achieve the design performance, exceeding the stack dust concentration permit.

There are several different technologies for dust capture and choosing the right one to use depends on the size, composition and concentration of the particulates being captured. ERG has wide experience of handling particulates as part of their gas cleaning systems and integrates the correct solids removal device within the package. In all cases, the design goals are to achieve the required discharge consent from the process while minimising costly maintenance downtime and operator intervention.

Please contact ERG’s process sales team to discuss your application. We have significant experience of integrating solids capture and handling with soluble contaminant scrubbing and can design and supply a system which will meet your process needs.

The main particulate capture technologies which ERG offers include the following. In all cases these are integrated within the overall abatement package, with additional scrubbing stages, fan, and solids handling as required:

Venturi scrubbers can be used for all types, concentrations and sizes of dust, including sub-micron particulate where a high pressure drop is required. Venturi scrubbers will simultaneously scrub soluble gaseous contaminants.
V-tex® scrubbers can be used where the particulate is >2 micron in size and where simultaneous solids and gaseous contaminant scrubbing is needed.
Wetted cyclones are used for large dusts, typically >500 micron and up to several mm in size.
Bag filters using cartridges or socks are a dry technology, and incorporate automated cleaning by reverse pulse air or nitrogen and dry solids collection hoppers. Typically used for light to medium solids concentrations of greater than 1 micron in size, and may be combined with lime, bicarbonate or PAC pre-dosing for gaseous contaminant treatment and to aid bag cleaning and longevity.
Ceramic filters for use at higher temperatures than bag filters or where the gas composition is not suited to a standard bag filter’s construction (eg high humidity or highly corrosive contamination).

Quality and Certification

All ERG systems are designed and manufactured to ERG’s ISO 9001 Quality Management System. Our systems are typically built to good engineering practice, though where required, we can design and build to be CE marked as required to the Pressure Equipment (2014/68/EU) and ATEX (2014/34/EU) Directives. Vessels can be supplied in accordance with PD 5500, BS EN 13121 or ASME VIII.

Our Clients

ERG’s customers include: