156 www.parker.com/gsfe Bioenergy Raw Biogas Treatment Biogas, originating from biomass, sewage plants and landfill sites is gaining increasing worldwide importance as a recognised renewable energy source. Biogas production can and will contribute in a significant way to future energy supplies replacing more and more existing fossilfuel sources such as coal, oil and natural gas. Generally, biogas is saturated with water vapor and contains other impurities which, when used as fuel, must be removed to prevent corrosion and damage to equipment and systems and improve cogeneration unit efficiency. The selection of effective biogas treatment equipment is therefore particularly important, both in optimising the cogeneration of electrical and thermal energy, making the most of the available renewable energy, and reducing energy consumption and operating costs to a minimum. Biogas Filtration Biogas produced in anaerobic digesters and landfills contains foams, small solid particles in suspension, greases, particulates and other contaminants which must be removed from the gas by filtration prior to any downstream equipment or pipework. Failure to remove these impurities may lead to a malfunction of devices and processes downstream. The stainless steel Hyperfilter BioEnergy FFB has been specifically designed to prevent these undesired effects, available in a range of sizes matched to the needs of biogas applications: Biogas Dehumidification Key Components Biogas is usually saturated with water vapour and contains contaminants that need to be removed or reduced including hydrogen sulphide, carbon dioxide, chlorides, fluorides, siloxanes and aromatic compounds. Most of these elements are water-soluble; so by achieving efficient dehumidification it is possible to significantly reduce the water vapour content in the biogas and partially or completely remove some of these impurities. Parker’s solution is to dry the gas, firstly by cooling to around 5°C using a water-cooled heat exchanger working with a water chiller and secondly, by removing the condensed water with a cyclonic water separator. The water-chiller Hyperchill BioEnergy, stainless Steel heat exchanger Hypercool BioEnergy and centrifugal separator Hypersep BioEnergy are the key components of the biogas treatment system: they have been specifically designed for biogas applications and provide safe and reliable operation in the harsh environments typically found at Anaerobic Digester and Landfill biogas production sites. Biogas Treatment Systems Parker Biogas Solutions, your ‘single source’ for advanced technologies and systems that deliver first class quality with global support and availability - all backed by the guarantees of the industry leader. Biogas Treatment System Hyperfilter Bioenergy Hypercool Bioenergy Hypersep Bioenergy Hyperchill Bioenergy Warm Water Chilled Water Hyperdrain Bioenergy Untreated Biogas Treated Biogas
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