siloxa faka gas cleaning system 1/6 · additional equipment – the adsorber is filled with...

SILOXA FAKA Gas Cleaning System

Activated carbon adsorber for removing siloxanes and, if required, hydrogen sulphide (H2S) from sewage gas

SILOXA Engineering AG · D-45327 Essen · Phone +49 201/28 951-0 · www.siloxa.com

SILOXA’s FAKA gas cleaning systems are highly efficient systems that are available in different versions, with one or two chambers or as a TWIN activated carbon adsorber.

With the FAKA activated carbon adsorber, the essential precondition for compliance with the engine manufacturers’ limit values for combustion gas can be established. The adsorber containers are made of stainless steel (1.4301).

The previously heated gas is cleaned by adsorption, using activated carbon that retains the siloxanes. When the uptake capacity of the activated carbon is reached, the saturated carbon can be emptied into Big Bags, easily and conveniently, through the cone shaped base of the container. Fresh ACO|sorb[si] activated carbon (Big Bags) can then be used to fill the container from the top. A platform with fixed ladder or a work platform with fixed ladder (DIN EN ISO 14122) allows the work to be carried out safely and easily in accordance with the health and safety regulations.

Using a gas analyser at the measurement points on the bottom of the FAKA container, it is possible to determine exactly when the used activated carbon needs to be replaced. Gas samples can be taken from these sampling points and then analysed in order to determine the level of saturation of the activated carbon. This gives advance warning of the need to renew the activated carbon.

Due to the separation of the chambers in the two-chamber (K2) FAKA, it is possible to remove only the saturated carbon from the lower chamber and then replace it with the fresh activated carbon from the upper chamber. This ensures maximum utilisation of the activated carbon in the lower filter chamber and extends the service life of the activated carbon by around 15%. The FAKA two-chamber adsorbers are available in three different sizes, to suit different requirements and applications.

In the FAKA activated carbon adsorbers, only high-performance ACO|sorb[si] activated carbon is used. This activated carbon is a premium product with a consistently high quality standard, a key component that plays an important role in efficient system operation.

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Make optimal use of the activated carbon with the convenient FAKA system.

Sizes/net capacity

Type description Net capacity Diameter Height FAKA 3000 K2E 2 x 1,500 l 1,270 mm 9,980 mm *

FAKA 6000 K2E 2 x 3,000 l 1,900 mm 9,980 mm *

FAKA 7000 K1E 7,000 l 1,900 mm 9,980 mm *

FAKA 3000 K2E TWIN 2 x 1,500 l plus 2 x 1,500 l 1,270 mm 9,980 mm *

FAKA 6000 K2E TWIN 2 x 3,000 l plus 2 x 3,000 l 1,900 mm 9,980 mm *

FAKA 7000 K1E TWIN 7,000 l plus 7,000 l 1,900 mm 9,980 mm *

* Height with crane

Technical description

Features – The filter system ensures that downstream plant components have a long service life – Significant lengthening of CHP maintenance intervals – Prevention of deposits in the combustion chamber – High availability of gas utilisation system, operational reliability, low maintenance – Opportunity for upgrading with further options – Easy replacement of activated carbon with Big Bags

Consumption costs – The activated carbon consumption is determined by the siloxane or H2S load and the gas quantity – The adsorber is optimised for quick and easy activated carbon replacement, to keep wage costs and downtimes as low as possible – Large adsorber volumes reduce specific replacement costs because the greater the quantity of activated carbon replaced, the lower the specific costs for transport, wages and downtimes – Packing of activated carbon in Big Bags reduces transport costs Service – SILOXA offers a full range of services throughout Europe for the operation of gas cleaning systems with activated carbon adsorbers, from delivering the activated carbon to full service.



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FAKA Stainless Steel – Stainless steel construction (1.4301)basic features – 2 gas connections (gas inlet and outlet) DN 200 PN10 – Inspection opening DN 500 – Connecting piece with ball valves for inertisation and taking gas samples – Shut-off valve for emptying activated carbon DN 150 – Ladder with cage and platform or work platform with handrail – Thermal insulating mineral wool 50 mm and aluminium sheet jacket – Crane unit with winch mechanism and electric chain hoist (650 kg lifting capacity) – Galvanised steel supporting structure

TWIN FAKA – Stainless steel construction (1.4301)basic features – Uninterruptible operation possible – Gas connections (gas inlet and outlet) DN 200 PN 10 depending on flow rate – Inspection opening DN 500 – Connecting piece with ball valves for inertisation and taking gas samples – Shut-off valve for emptying activated carbon DN 150 – Thermal insulating mineral wool 50 mm and aluminium sheet jacket – Ladder with cage and platform or work platform with handrail – Crane unit with winch mechanism and electric chain hoist (650 kg lifting capacity) – Galvanised steel supporting structure

Available options

Additional equipment – The adsorber is filled with ACO|dotiert[s] for removing hydrogen sulphide (H2S)

Deflagration – 2 flame arresters flame arrester – EC type examination certification as per Directive 94/9/EC in accordance with ATEX 95 and EN 12874 – Equipped with PT100 resistance thermometer

Gas heating – Flanged tube bundle heat exchanger for heating biogas, material in contact with gas media 1.4571 – Pressure resistance, gas-side 0.5 bar (gauge)



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The siloxane uptake is easily tested via the gas sampling point.

– Pressure resistance, jacket-side 6 bar (gauge) – Gas connection depending on flow rate – Heating connection 1“ – Hot water supply temperature 700 kg/h, 70 to 90°C, provided by customer – Integration in gas supply is the responsibility of the customer

H2S-Online-Analyse – Gas sensor 0 to 100 ppm – Condensate trap – Evaluation unit with 4 floating contacts and analogue output, illuminated 4-line display, 2 alarm thresholds, 2 alarm, buzzer and fault relays – Power supply and communication must be connected, and if necessary evaluated, by the customer – Indoor and outdoor installation possible

Air metering unit – Diaphragm pump(required if the gas – Flow rate indicator with regulating valvecontains less than – Activation is the customer‘s responsibility0.5 % O2 by volume) – TÜV (Technical Inspection Agency) Safety Test Report

Installation/ – Installation of activated carbon adsorber on foundation provided by customercommissioning – Carrying out commissioning and training

Machinery – available on enquiryaccess ladder

Safety temperature – on request monitors

Safety overpressure – on request, (design dependent on the customer‘s pressure generator) valve

Operating information When using activated carbon adsorbers for removing hydrogen sulphide, please observe the following: For the removal of hydrogen sulphide, the fermentation gas must have an oxygen content of at least 0.5 and no more than 3.0 vol. %. The required minimum per centage of oxygen depends on the hydrogen sulphide load and can be specified in agree ment with Siloxa Engineering AG. The adsorber must be monitored by the operator to ensure that it functions properly. Siloxa Engineering AG accepts no liability for damage arising from insufficient monitoring of the adsorber function.



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Easy refilling of the activated carbon adsorber thanks to the working platform and the crane.

Stainless steel Sewage gas / landfill gas Big Bag Crane 2 2 1 1,270 mm 1,900 mm 1,900 mm 1,500 L 3,000 L 7,000 L 1,500 L 3,000 L – 750 Nm³/h 1,400 Nm³/h 1,700 Nm³/h 900 Nm3/h 1,700 Nm³/h 2,000 Nm3/h 4° C to 60° C > -100 / < 300 mbar max. 160 mbar 60° C 60° C < 23 mbar < 18 mbar < 23 mbar < 36 mbar < 30 mbar < 37 mbar ACO|sorb[si]

approx. 60 vol.-% approx. 40 vol.-% > 0,5 & < 3 vol.-% approx. 50-60 % < 50-60 % < 100 mg/m³ 1,000 mg/m³ 1,000 ppm ca. 1,2 kg/Nm³ ca. 1,6 kJ/Nm³ K

Outdoors - 15° to + 35° C DN 200 / 200 PN10 2,200 mm 3,742 x 3,090 x 6,822 2,470 x 3,341 x 6,660 2,470 x 3,341 x 6,660 3,742 x 3,090 x 9,980 3,742 x 3,341 x 9,980 3,742 x 3,341 x 9,980 2,700 kg 2,950 kg 2,850 kg 5,100 kg 7,750 kg 8,450 kg 50 mm mineral wool / sheet aluminium YALE CPVF 10-4 1,000 kg 400 V - 3ph+N+PE - 50 Hz Acc. to DIN EN ISO 14122

FAKA 3000K2 E FAKA 6000K2 E FAKA 7000K1 EDesign parameters

MaterialMediumActivatedcarbonreplacem.systemOptionalNumber of chambersDiameter of the filterActivated carbon (working filter)Activated carbon (control filter)Nominal flow rateMax. flow rateOperating temperaturePermissible operating pressureMax. operating pressure *1

Max. operating temperatureMax. operating temperature *1

Pressure loss at max. vol.Pressure loss at max. vol. *1

Type of activated carbon

Gas composition

Methane CH4

Carbon dioxide CO2

Oxygen O2 *2

Relative gas humidity *2


Hydrocarbons C5

Max. siloxanesMax. hydrogen sulphide H2S

Physical properties

Gas densitySpecific heat capacity CP

Installation conditions

Installation sitePermissible temperatureInlet/outlet Inlet heightDimensions in mm (L x W x H)Dimensions in mm with craneEmpty weightOperating weightType of insulationType of craneMax. lifting weightElectrical connectionConstruction: platform/ladder



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Technical Data

*1: with deflagration flame arrester option*2: with optional H2S removal only *3: for siloxane removal

Stainless steel Sewage gas / landfill gas Big Bag Crane 2 2 2 2 1 1 1,270 mm 1,270 mm 1,900 mm 1,900 mm 1,900 mm 1,900 mm 1,500 L 1,500 L 3,000 L 3,000 L 7,000 L 7,000 L 1,500 L 1,500 L 3,000 L 3,000 L – – 750 Nm³/h 1,400 Nm³/h 1,700 Nm³/h 900 Nm3/h 1,700 Nm3/h 2,000 Nm3/h 4° C to 60° C > -100 / < 300 mbar max. 160 mbar 60° C 60° C < 23 mbar < 18 mbar < 46 mbar < 36 mbar < 30 mbar < 60 mbar ACO|sorb[si]

approx. 60 Vol.-% approx. 40 Vol.-% >0,5 & < 3 Vol.-% approx. 50 - 60% < 50 - 60 % < 100 mg/m3 1,000 mg/m³ 1,000 ppm

approx. 1,2 kg/Nm3 approx. 1,6 kJ/Nm3 K

Outdoors - 15° to + 35° C DN 200/200 PN10 2,200 mm 4,016 x 2,450 x 6,873 5,207 x 2,748 x 6,902 5,207 x 2,748 x 6,902 5,485 x 2,450 x 9,980 6,716 x 2,738 x 9,980 6,716 x 2,738 x 9,980 5,600 kg 6,900 kg 6,900 kg 10,600 kg 16,500 kg 18,100 kg 50 mm mineral wool / sheet aluminium YALE CPVF 10-4 1,000 kg 400 V - 3ph+N+PE - 50 Hz Acc. to DIN EN ISO 14122

TWIN-FAKA 3000K2 E TWIN-FAKA 6000K2 E TWIN-FAKA 7000K1 EDesign parameter

MaterialMediumActivatedcarbonreplacem.systemOptionalNumber of chambersDiameter of the filterActivated carbon(working filter)Activated carbon (control filter)Nominal flow rateMax. flow rateOperating temperaturePermissible operating pressureMax. operating pressure *1

Max. operating temperatureMax. operating temperature *1

Pressure lossatmax.vol. (in series)Pressure lossatmax.vol. (inseries)*1

Type of activated carbon

Gas composition

Methane CH4

Carbon dioxide CO2

Oxygen O2 *2



Hydrocarbons C5

Max. siloxanesMax. hydrogen sulphide H2S

Physical properties

Gas densitySpecific heat capacity CP

Installation conditions

Installation sitePermissible temperatureInlet/outlet Inlet heightDimensions in mm (L x W x H)Dimensions in mm with craneEmpty weightOperating weightType of insulationType of craneMax. lifting weightElectrical connectionConstruction: platform/ladder



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Technical Data

*1: with deflagration flame arrester option*2: with optional H2S removal only *3: for siloxane removal

siloxa faka gas cleaning system 1/6 · additional equipment – the adsorber is filled with...

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