Environmental Group Limited (EGL) products

Our portfolio features the successful delivery of our largest diverter damper to date, measuring 6.5 metres in the gas path. Our designs integrate cold shells with thermal insulation for diverters, elbows, and exhaust stacks, ensuring the exterior temperature remains below 50°C, even when exhaust gases exceed 680°C.

We provide guillotine dampers, either electric or manual operated, and fully automated with the option of providing a Seal-Air System independent of the diverter damper. Custom-designed guillotine dampers can also be supplied for many industrial processes other than isolation of gas turbine exhausts.

Minimising Noise & Maximising Performance in Gas Turbine Operations. We specialise in comprehensive acoustic analysis for projects, custom-designing exhaust silencers to meet noise limits. These silencers ensure minimal noise emissions while limiting pressure losses for gas turbines exhausts, inlet filters and other high flow applications. To provide maximum noise control, additional we provide industrial sound barriers as a cost-effective solution for noise reduction from various sources. Provide silencers for gas turbines in the range of 10MW to 500MW, both horizontal and vertical silencer, circular or rectangular.

We design static and pulse-type filter houses, complete with essential support structures. Static filter houses utilise disposable cartridge-type filters, featuring multiple filtration levels – coarse pre-filters for larger particles, followed by fine filters. The size is determined by the required interval between filter changes. We also provide necessary ductwork, expansion joints, and silencers for turbine integration if needed.

Kimre mesh pads offer high efficiency mist elimination. The pads employ a unique woven structure and a variety of filament sizes and weave densities. The woven material produced is in relatively thin layers (2.5 mm to 50 mm thick) with a pad being assembled from a number of layers which may be the same or may vary in weave and composition. As such a pad can be designed to achieve a given mist removal performance, liquid handling capability etc. This method of construction results in predictable, reliable performance and also allows for easy cleaning by pulling the individual layers apart and washing them. Kimre pads can also be used as mass transfer media in packed towers.

Catalytic oxidation occurs through a chemical reaction between the VOC hydrocarbon molecules and a catalyst bed that is internal to the oxidizer system. A catalyst is a substance that is used to accelerate the rate of a chemical reaction, allowing the reaction to occur in a lower temperature range to thermal oxidisers (275°C to 350°C).

Also known as candle filters and Brink mist eliminators, MME’s were developed by Monsanto to solve acid mist problems in sulphuric acid plants. They have since been developed to solve a range of mist problems, especially ultrafine acid and organic mists from sources such as chlorine plants, asphalt plants, sulphuric and nitric acid plants, vinyl curing operations and other applications producing condensed organic mists.

Many of the gas scrubbing systems that we install are for the removal of gaseous pollutants.  However, there are many occasions where the gas stream includes particulates that need to be removed either before a gas scrubbing section, or as a stand alone process.  These scrubbers are generally referred to as “Wet Scrubbers”.

Simple water scrubbers rely on the solubility of the pollutant gas.  Many of these scrubbers do not recycle the scubbing liquor, simply sending it to waste or recovery. An example of this would be the removal of methanol (CH₃OH) from a gas stream using only water. Methanol is highly soluble in water, but evolves back out of the water if recycled.  These systems are identical to the chemical scrubbers described below except they only use water.  Click here to visit our Chemical Scubbing section.

These are the most common style of scubber that we build and range from small fume cupboard ventilation systems to large multi-stage scubbing systems.