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Dorset Biogas Dryers

Biogas Dryers Comments Off

Dorset Biogas Dryers photo biogas dryersDorset has developed a heating-concept for biogas plants. The residual heat from the biogas plant can be utilized effectively during the entire year, if a Dorset drying system is in place.

The drying equipment is designed to utilize residual heat at a low cost. With a Biogas installation the dryer replaces the cooler from the CHP. With 500 kW two ventilators of 2,2 kW are used which barely raises the amount of electricity. When drying the sewage sludge the energy use can be reduced by 90% in contrast to the conventional dryers. The air velocity through the product is very low to prevent dust formation. When drying manure or substrate from biogas plants, cleaning the air is absolutely necessary.

The benefits at a glance:
By using a drying system the residual heat can be utilized the entire year.
Dorset dryers have a low power consumption (+ / – 3% of the energy produced at the biogas plant).
Separation of manure is not necessary because of the recirculation of the product (>8% ds).
Less storage of digestate is required
Reduced disposal costs of the digestate
Low dust formation due to low air velocity

Dorset Green Machines B.V.
Weverij 26
7122 MS Aalten
The Netherlands
T: +31 (0) 543 472103
F: +31 (0) 543 475355
E: gm@dorset.nu

W120 ES twin tower biogas dryer

Biogas Dryers Comments Off

W120 ES twin tower biogas dryer photo biogas dryersWhen converting biogas and landfill gas into electricity, constant gas quality is paramount in enabling engines and micro-gas turbines to operate economically and efficiently. Contamination, in the form of solid particulate contained in the gas-stream must be separated out and the remaining moisture content reduced. Furthermore the presence of siloxanes in the gas can also pose problems. The GES processing system for siloxane removal provides reliable protection against engine damage and operational failure.

Systems for the treatment of biomethane, prior to gas-grid injection must conform to special operational and legal requirements. When treating raw-gas to meet biomethane standards, the dryness, in terms of the gas dew point is decisive. PARKER HIROSS ZANDER has developed a fully-automatic heat-regenerative adsorption dryer, complete with inlet & outlet filtration to meet these demands.

Working closely with system-designers, biogas plant manufacturers and plant operators, we keep pace with changing market trends and requirements and are thus able to remain innovative in this field of application.
Our range of highly efficient system components comprises:

activated carbon filters for reducing H2S
water separators for gas dehumidification
shell and tube water-cooled gas coolers and chillers
heated, zero-loss condensate drains
regenerative twin-tower dryers (PSA)
oil-vapour absorbers for hydrocarbon removal
siloxane removal systems

Parker Hannifin Corporation Zander Aufbereitungstechnik GmbH
Im Teelbruch 118
45219 Essen
Phone: +49 (0)2054 934 – 0
Fax: +49 (0)2054 934 – 122
E-Mail: info(at)zander.de
Web: www.zander.de

Pneumatech Biogas Dryer

Biogas Dryers Comments Off

Pneumatech Biogas Dryer photo biogas dryersSince 1966 Pneumatech has been an industry leader in compressed air and gas treatment. Our customers are some of the largest companies in the world and our equipment is placed throughout the far reaches of the globe.

Pneumatech introduced a line of specialized Biogas drying systems in 1985 with the singular vision of designing top quality equipment that exceeded our customer’s expectations. As an illustration of our commitment to quality, our very first gas dryer was put in service that same year, and is still in service today.

Through the years, Pneumatech has introduced several innovations in the field such as infinite unloading compressors which dynamically adjust to plant production to significantly reduce parasitic load. Pneumatech also pioneered the industry through the use of no-gas loss condensate drains, creating a safer ambient environment; gas to gas heat exchangers to reheat the chilled gas to minimize volume loss; state of the art electronics that integrate into site management software and controls and safeties that ensure your equipment is protected in the most demanding of conditions.

Innovation, quality and commitment to service sets Pneumatech apart.

Corrosion-resistant materials
Various NEMA ratings available
Infinite adjusting capacity control
Dual No-Gas Loss condensate drains
Modular gas system construction
Heat exchanger with smooth wall
304 SST tubing
Centrifugal moisture separator
Hot Gas Bypass system

Long service life and durability
Suits all hazardous location classifications
Reduces parasitic load
Gas preservation and safety
Easy servicing
Minimal fouling factor, low pressure drop
and increased durability
Better condensate elimination
0-100% load control without freeze-up

4909 70th Avenue
Kenosha, WI 53144
Ph: 800.336.2285
Fx: 262.658.1945

Landfill/Digester/Biogas Dryer

Biogas Dryers Comments Off

Landfill/Digester/Biogas Dryer photo biogas dryersVan Gas Technologies is a certified industry partner in the U.S. EPA’s Landfill Methane Outreach Program and a solutions provider for the U.S. Department of Energy biogas-to-energy demonstration projects. With a dedicated team of application engineers, Van Gas has designed systems to condition methane generated through anaerobic digestion for optimal use in microturbines or combustion engines, and water vapor to protect gas compressors and to remove water vapor from low-BTU gas to meet contract specifications.

Designed specifically for this application is our refrigerated, landfill / digester gas dryer. It is an ideal solution to remove harmful water vapor to improve the combustible quality of landfill gas and biogas, especially when the inlet gas temperature is between 100° and 110° F. Product features include patented dew point sensor and flood level control, stainless steel heat exchanger tubes and moisture separator and modular construction for ease of servicing.

Features and Benefits
Stainless steel construction on all wetted parts
35°F dew point
Five-year limited warranty
Refrigeration low pressure shut down
Refrigeration high pressure shut down
Refrigeration liquid line dryer
Refrigerant suction line dryer
Liquid line sight glass
CFC free refrigerant
Crank case heater
Demand drains with Push to Test key
Structural solid steel base
Isolation valves for compressor and evaporator
Condenser and liquid receiver
Condenser pressure relief valve
Compressor discharge check valve
Compressor isolation mounts
Cold point separator/filter (304L SS)

Air & Vacuum Process, Inc.
14090 FM 2920
Suite G-537
Tomball, TX 77377
Toll Free: 866-660-0208
PH: 281-866-9700
FX: 281-866-9717

BKE biogas dryer

Biogas Dryers Comments Off

BKE biogas dryer photo biogas dryers Effectively removes condensate from the system to allow for maximum biogas utilization
Increased combustability means less wasted biogas

BKE biogas dryers are machines for reducing water content in biogas. The water content can be a form of vapor or liquid (condensate). The water vapor content in the biogas can be calculated as they are in the form of atmospheric air. Therefore the psychometric chart is applied to find the amount of water vapor in the biogas by the units of relative humidity (%RH) or absolute humidity (kg water/kg dry biogas). As long as there is no specific psychometric chart for biogas, the chart for atmospheric air is close enough and applicable.

As you remove water from the biogas you reduce the biogas temperature below the dew point. At that reduced temperature, some vapor will condense and turn to liquid (condensate). Please note that the lower the temperature, the more condensation may take more electricity consumption.

To remove condensate from the biogas handling system, a water separator is used as shown in the diagram below.

After the biogas temperature is reduced, the relative humidity is still the same at 100% RH but the absolute humidity is reduced to 0.015 kg water/kg dry biogas. The balanced amount of water is the excess water of 0.048160-0.015 = 0.03396 kg water/kg dry biogas. The excess water or condensate will be removed by the water separator. So the stage after the water separator is still keeping the relative humidity at 100% RH but minus the excess water.

The next stage is to recover the biogas temperature by reheating which can be done by natural heat transfer depending on the ambient temperature, the length of the biogas supply piping and the pipe wall conductivity. We can also force reheating by using blower(s) to boost the biogas pressure.

The following chart shows the saturation points relative to Humidity and Temperature.

BKE Combustion Controls Co., LTD.
32 Phakam Rd., Tambon Huawieng, Amphur Muang Lampang 52000, Thailand
Tel: (66) 54 228680-1 Email: contact@bke.co.th

Gas Chiller GC

Other Equipment Comments Off

Gas Chiller GC photo other equipment biogas processing equipment recycling and environmental protectionBiogas, sewage gas and landfill gas always contain water vapour in an unsaturated state. During combustion, the water vapour results in considerable corrosion damages to the gas engines and turbines. Malfunctions caused by these damages lead to significant downtimes and high repair costs.

The use of a gas dehumidification system can considerably extend the engines´ service life and notably reduce the maintenance costs.

The condensation of the water vapour in the gas is caused by temperature reduction which in turn results in a dehumidification. The condensate is separated out in a trap installed after the chiller and removed via a siphon. The dehumidification simultaneously results in an increased efficiency.
The EnvironTec gas dehumidification process presents a cost-effective solution in this context.

The gas dehumidification modules are available in performance ranges offering gas flow rates from 100 to 6000 Nm³/h. Special designs are also available on enquiry.

Additional application examples are configurations in combination with a post-heating stage ahead of active carbon filters and feeding into a gas pipeline to prevent subsequent condensation.


Communal or industrial sewage treatment plants
Chemical industry
Paper industry
Landfill sites
Food industry

GAS FLOW RATE: 100 – 6.000m³/h
GAS PRESSURE AT INLET: -100 to + 500 mbar

Techxcel Corp.
Saint H. Lee
Managing Director
4 F, Soonjong Bldg, 198-16, Goosan-dong Eunpyung-Gu
Seoul 122-823
Web: www.ktc-packmaster.co.kr

Infrared Burner Line

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Infrared Burner Line photo other equipment biogas processing equipment recycling and environmental protectionAdvantages of the Infrared Burner Line

» Rapid Heat Up & Cool Down
» High Durability
» Large Turndown Ratio
» Ultra Low Emissions
» Thermal Shock Resistance
» Uniform & Homogeneous Combustion

ABUTEC manufactures a complete range of Infrared Burners, LOW NOx Burners, Blue Flame Burners, and Industrial Burners to meet your heating and process needs. We specialize in offering customized solutions to fit your unique applications. Our burners are locally manufactured and utilize proven surface combustion principles to offer you distinct competitive advantages! The T4RAD product line is a unique line aimed at offering a highly durable, easily customized, low emission & high efficiency burner. The burners are able to operate at firing rates between 30,000 btu/hr/ft2 up to 200,000 btu/hr/ft2. These burners are used in a wide variety of applications ranging from textile machines, food ovens, paint drying booths, steel mills, plus many more…

2959 Cherokee Street, Suite 101
Kennesaw, GA 30144 (USA)
Direct Phone: (770) 846-0155
Fax: (770) 499-7455
Email: info@abutec.com

BioGasclean’s gas cleaner

Other Equipment Comments Off

BioGasclean’s gas cleaner photo other equipment biogas processing equipment recycling and environmental protectionBioGasclean’s gas cleaners are installed at biogas plants where biogas desulphurisation is required. The hydrogen sulphide (H2S) is removed from the biogas in a biological process. The company’s H2S scrubbers are available in 4 different product types.

Biogas produced on waste water from sugar cane ethanol distilleries has typically a H2S content of 3,0% (30.000 ppm) and as the flow of biogas is large the sulphur load is considerable. This requires very big gas cleaners with one or two tanks
constructed on site.

The tanks are built on-site in mild steel or concrete with an acid-proof liner.
All key-components, sub-systems, PLC control, etc., are installed in a Process Technique Unit (PTU) built into a 20’ or 40’

The packing media is manufactured locally if economical.

BioGasclean A/S • Hvidkærvej 41 • DK-5250 Odense SV • Dennmark • Phone: (+45) 6617 2177 • ct@biogasclean.com

BIOPAQ® Biogas Buffer

Other Equipment Comments Off

BIOPAQ® Biogas Buffer photo other equipment biogas processing equipment recycling and environmental protectionOur buffers are designed to buffer biogas and create gas pressure in the gas system. The buffer is also capable to smooth small flow variations.

The biogas buffer consists of a circular tank with a conical roof and an inner tank, the ballast tank. The ballast tank, guided by strips on the outer tank, is connected to a special shaped membrane and will raise or descend depending of the gas flow. The ballast tank is used for counterweight and is partly filled up with concrete, which creates the gas pressure. The operating pressure is normally 30 cm water column (mbar). The height of the ballast tank determines the actual buffer volume.

Paques bv
Postal address:
P.O. Box 52
8560 AB BALK
The Netherlands
Tel: +31 514 608500
Fax: +31 514 603342
E-mail: info@paques.nl

Gas Train

Other Equipment Comments Off

Gas Train photo other equipment biogas processing equipment recycling and environmental protectionBKE gas supply & safety systems, also known as ‘gas trains’ are a critical component engineered into all of our burner systems. The key purpose of the gas train is to safely deliver the combustible fuel to the burner at a desired flow rate, while continually checking (and re-checking) the system to ensure constant and reliable flow and pressure.

BKE biogas trains contain a combination of safety and delivery components including:

Flame arresters
Safety shut-off valves
Pressure control valves
Weep nozzles & solenoid valves
Vent solenoid valves
Gas filters
Pressure switches

Biogas is high in acidic hydrogen sulfide gas, has a relatively low heating value, and has a moisture content that makes it more complicated to work with than many other gases. Our gas trains are uniquely designed for this harsh & aggressive environment to ensure that our burner systems operate at peak efficiency.

BKE Combustion Controls Co., LTD.
32 Phakam Rd., Tambon Huawieng, Amphur Muang Lampang 52000, Thailand
Tel: (66) 54 228680-1 Email: contact@bke.co.th

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