Condensation from saturated biogas collects at the lowest points in the pipework, in bends etc. This can negatively influence the effective operation of biogas systems.
ennox condensate accumulator is installed at the lowest point in the pipework. The condensate gathers in the container where it can be discharged through a manual tap and/or an automatic siphon.
As an option ennox will supply a level indicator or an automatic discharger.
Biogas can contain large quantities of poisonous hydrogen sulphide depending upon the fermentation process and which input materials are used. This gas can cause permanent damage to gas engines or other consumers of the biogas.
The majority of the hydrogen sulphide gas can be effectively removed by using an ennox active carbon filter ACF.
In addition, the active carbon filter can be used for the removal of damaging siloxane from the biogas, furthermore for the neutralization of unpleasant odours in outgoing air and tanks.
Biogas, sewage gas and landfill gas contains not only water vapour, but also a whole host of additional impurities such as hydrogen sulphide, NH3 and siloxane, which, when processed in the utilization system can not only lead to a reduction in efficiency, but also result in damage to the system.
The dehumidification of the gas before processing is a basic preliminary requirement in order to permit an efficient usage of the biogas and an investment in the sustainability of the utilization system.
With the ennox gas chill dryer the gas to be processed is passed through a heat exchanger where the cooled gas can expel any moisture which drips and is collected as condensate.
According to the technical requirements of the installation a post-warming or an economical and ecological energy recovery system can be implemented into the system.
Gas from bio or sewage processing systems are often contaminated with water vapour or very sparsely distributed small particulate matter, which, when used for example in CHP units can cause operating problems or even damage. For the fine cleaning of the gases before utilization an ennox ceramic fine filter is used.
In the ennox ceramic fine filter the fine particles contained in the gas are captured by a special fire-clay filter (Pantel). Condensate collects in the form of a moisture layer on the surface of the material and drips into the collector below.
An automatic discharge system with level indication can be installed in the base of the digester upon request.
The gas removed from biogas digestion or fermentation units can be heavily contaminated with foam particles, various particulate matter and water vapour. A pre-filtration of the gas (often adequate enough) can be achieved with the use of an ennox gravel filter.
The gas flows through the ennox gravel filter layer where large particulate matter and water vapour is left behind. The water collects at the bottom of the filter where it can be drained with a siphon assembly.
Following heavy contamination of the gravel filter the spraying unit can be used for rinsing, avoiding the need for opening the digester unit. As an option a gravel removal opening can be installed.
Bio or sewage gas is saturated with water vapour. Condensation can occur within the pipework systems of digester systems as a result of fluctuating temperatures. The ennox condensate pot allows for the collection and controlled discharge of any condensation water accumulations.
The gas flows through the condensate pot where it is channeled within the pot through a separation chamber. The reduction in gas flow velocity and the influence of temperature fluctuations cause the water vapour in the gas to condense and collect at the bottom of the pot.
The collected condensate can be discharged from the point of collection either with a siphon or an automatic discharger.
Floating covers or sludge accumulations forming on the substrate surface in the digester can be combated with a pivoting stainless steel spraying unit PSD.
Normally the spraying unit is welded into the gas dome or manhole cover, can be rotated 360° and can pivot within the space available.
The water connection can be achieved with a STORZ or GEKA type coupling, alternatively with a standard threaded connection.
It´s always better to check by yourself….
The easiest method to check the fermentation process in a digester is with a glance through our inspection window!
Quality glass materials and manufacture, many years of experience and an extensive range of accessories guarantee the meeting of the strict inspection requirements in biogas technology.
ennox inspection windows can be installed directly into the digester roof, in a steel or concrete wall or integrated together with other components in the gas dome or manhole cover.
Accessories such as spraying units, screen wipers and lights are also part of our program. We can complete your installation with the most up-to-date color zoom camera systems with data storage, data processing and relay via internet.
Under certain conditions foam can accumulate in the digester as a result of the fermentation process. If allowed to enter into the pipework, the foam can result in blockage, damage or impair the functionality of safety devices.
The gas dome integrated ennox foam trap utilizes a light curtain detection system, which reliably recognizes any build-up of foam and prevents the ingress of such foam into the pipework.
With the compact assembly directly on the gas dome, the detection and counter-measures are immediate, therefore requiring no installation of a return pipe system for the accumulated foam back into the digester.
As an option, the foam trap can be provided with a fully automatic controller as well as with mechanical over/under pressure safety valves.”
Gas domes serve to collect and discharge the produced gases as well as support for various additional digester installations such as mixers, foam traps, inspection windows, pressure safety valves and measurement components.
ennox gas domes are configured according to the customer’s individual requirements. Special designs for the integration of a mixer are also available. We can also allow for unusual digester forms or space saving combinations of components.
Our engineers are happy to support you in developing the optimal solution.
Our team is looking forward to answering all your questions around biogas as well as our products and will be pleased to consult you.
In case you are not able to reach us via phone, please feel free to email us and we will contact you promptly.
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