Siloxa - Model FAKA - Fixed Absorber - Brochure

Siloxa Engineering AGKaternberger Strasse 107 | 45327 Essen | GermanyTel. +49 (02 01) 2 89 51-0 | Fax +49 (02 01) 2 89 51-29E-mail: vertrieb@siloxa.com | Web: www.siloxa.comProduct and Process Description 1/2SILOXA activated carbon adsorber, FAKA model (? xed activated carbon adsorber) for reducing hydrogen sulphide (H2S) in biogas plantsProduct descriptionSILOXA's FAKA gas cleaning systems in differentsizes, available in 1- and 2-chamber versions and asTWIN activated carbon adsorbers, are used to re-move hydrogen sulphide (H2S) from biogas. The remo-val of hydrogen sulphide is an important prerequisitefor compliance with the formaldehyde limit values ofthe TA Luft (Technical Instructions on Air Quality Con-trol) using a catalytic converter. Depending on the model, the steel adsorber containers are available with an electrostatically dissipative coating on the in-side or in a stainless steel version (1.4301).The previously heated gas is cleaned in a vertical acti-vated carbon adsorber. These adsorbers are securely mounted on a support structure. For easy changing of the activated carbon, the bottom of the container is cone-shaped (for emptying) and the top is designed so that it can be re? lled with a Big Bag. Work is additionally facilitatedby a platform with ladder or a work platform with ladder (does not apply to FAKA 1500). When the gas is fed in, it ? ows through the adsorber chamberfrom the bottom to the top. The exact time to changethe used activated carbon can be determined from measuring points in the adsorber. These samplingpoints are positioned so that the ? lter uptake statuscan be regularly measured at different heights.This enables the operator to always prepare in goodtime for the replacement of the activated carbon. In twin-chamber versions of FAKA (K2) it is possible, thanksto the separation of the two chambers, to change onlythe used carbon from the lower chamber and then ? llthe lower chamber with the clean carbon from the up-per chamber. This ensures maximum capacity utilisationof the carbon in the lower ? lter chamber. The twin-chamber adsorber is available in 3 different sizes.Sizes/useful capacity Choosing the required performance class/size de-pends on the gas ? ow rate and the H 2S load (raw gas load and the desired replacement interval for the activated carbon). In other words, the adsorber type required depends on the gas's H2S content and the volume of gas ? ow-ing through. The higher the load and the stronger the ? ow rate, the bigger the ? lter needs to be.FAKA 1500 K1, stainless steel, 1,500 l FAKA 2000 K2, steel with special coating, 2 x 1,000 l FAKA 3000 K1, steel with special coating, 3,000 l FAKA 3000 K2, stainless steel, 2 x 1,500 l FAKA 6000 K2, steel with special coatingand stainless steel, 2 x 3,000 l FAKA 7000 K1, steel with special coatingand stainless steel, 7,000 l TWIN-FAKA 3000 K2, stainless steel,2 x 1,500 l plus 2 x 1,500 l in the safety ? lter TWIN-FAKA 6000 K2, stainless steel,2 x 3,000 l plus 2 x 3,000 l in the safety ? lter TWIN-FAKA 7000 K1, stainless steel,7,000 l plus 7,000 l in the safety ? lterDesign features of FAKA with 1 or 2 chambers – Cylindrical container made of steel with coating (electrostatically dissipative) or stainless steel ?SILOXA FAKA schematic drawingSiloxa Engineering AGKaternberger Strasse 107 | 45327 Essen | GermanyTel. +49 (02 01) 2 89 51-0 | Fax +49 (02 01) 2 89 51-29E-mail: vertrieb@siloxa.com | Web: www.siloxa.comProduct and Process Description 2/2SILOXA activated carbon adsorber, FAKA model (? xed activated carbon adsorber) for reducing hydrogen sulphide (H2S) in biogas plants– The adsorber is ? tted with heat insulationso that no condensate can form on the container walls at low ambient temperatures. – The adsorber is ? lled with activated carbon viaan inspection opening in the container cover – Easy emptying of the adsorber thanks to user- friendly design of the base plate (exceptFAKA 1500) – Thermal insulation with aluminium sheeting– Numerous options for optimising plant operation Safety features– All the components that come into contact with gas are electrostatically dissipative.– The system complies with the ATEX requirements for using biogas and with TRBS 2153 (technical rulesfor operational safety: prevention of ignition hazards due to electrostatic charges). – Steel or stainless steel container reliably and perma-nently retains its shape even at high operating tem-peratures or operating pressures Relevance for the gas engine system– The ? lter system ensures that oxidation catalysts can be used for a long time– Prevention of deposits in the combustion chamber of the gas engine – Reduced operating costs (e.g. longer life of engine oil)– Clean gas improves the availability of the CHPConsumption costs– Activated carbon consumption is determined by the H2S load and the gas quantity. – The adsorber is optimised for quick and easy acti-vated carbon replacement to keep wage costs and downtimes as low as possible. – Large adsorber volumes reduce the speci? c replace-ment costs, because the greater the quantity ofactivated carbon replaced, the lower the speci? c costs for transport, wages and downtimes. – Handling of activated carbon in Big Bags means low transport costsOptions AdvantagesGas heatingfor de? ned hea-ting of the gas to increase its temperature by approx. 15 °C for heating water supply Longer activated carbon service life, i.e. less activated carbon consumption because there is no condensation or adsorption of water Crane systemfor ? lling (only with stainless steel version)Quick and easy ? lling with activated carbon from Big Bags Alternative: mobile crane (provided by customer)H2S online analysiswith evaluation unit Monitoring of the uptake status of the activated carbon Twin-chamber ? lter Max. operational reliability and very low operating costs thanks to full capacity utilisation of the activated carbon. Air metering unit Required if the gas contains less than 0.5 % O2 by volume Service SILOXA offers a full range of services throughout Ger-many for the operation of gas cleaning systems with activated carbon adsorbers, from delivering the acti-vated carbon to full service. The SILOXA ? lter elements use only water-vapour-activated doped moulded activated carbon with a nominal pellet diameter of 4 mm.This activated carbon is produced using a new, paten-ted manufacturing process based on charcoal. During the manufacturing process, catalysts for H2S removal are added to the carbon. This manufacturing process guarantees that the internal surface area of the carbon is almost fully retained. Using this carbon reduces the plant operator’s running costs because the activated carbon has 50 percent higher cleaning ef? ciency than comparable products.Issued: 03/2012, subject to technical modi? cations.