Landfill/Digester/Biogas Dryers

Van 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)

Applications

• Landfill gas dehydration
• Digester gas dehydration
• Waste water treatment plants
• Breweries and wineries
• Cheese plants

Optional Single-Tower Desiccant Dryers

Another option for drying landfill and digester gas is the Van Gas single-tower pipeline dryer, designed to be used with absorbent deliquescent desiccants for an economical and effective solution to natural gas, fuel gas, and biogas dehydration. Operating costs are kept to a minimum since desiccant consumption is based upon the actual gas flow. There are no electrical requirements to operate the pipeline gas dryer.

Our single-tower pipline gas dryers produce no BTEX or VOC emissions and are a valuable tool for gas producers and processors needing to comply with strict environmental regulations. The desiccant brine solution resulting from the dehydration process is environmentally friendly and can be disposed with other produced liquids.

Standard single-tower natural gas dehydrators are available with maximum working pressures of 280 PSIG to 1440 PSIG, with flow capacities up to 7.7 MMcfd. Gas dryers rated for higher pressures and flows are available on an engineered-to-order basis. With our wide selection of single-tower dryers and custom engineering capabilities, we are certain to have a gas dehydrator for your application.