Complete Biogas Upgrading Systems

We deliver complete biogas systems for a sustainable and greener future

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Engineering

Our in-house engineers can customize a solution for your biogas project whether it be for SSO, AG, WWTP, or Landfill.

Manufacturing

With manufacturing facilities in Canada and U.S.A. ensure your system is delivered on time and built close to home.

Commissioning

Our vertically integrated systems ensure seamless integration of all GraniteFuel components from digester to pipeline for faster and easier commissioning of your biogas plant. 

Complete Biogas Conditioning Systems:
Renewable Natural Gas (RNG), Reciprocating Engines and Gas Turbines

GraniteFuel Advantage

Design, Manufacture & Integrate RNG Solutions

Quality engineered solutions with full customization.

  • Systems integration
  • Engine-out emissions guaranteed
  • Built in Canada & U.S.A.
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Complete Biogas Conditioning Systems

A DCL Technology Group Company

GraniteFuel is a leader in the engineering of biogas conditioning systems. As part of the DCL Technology Group, GraniteFuel can additionally provide you with an engine exhaust emission control systems together with a tailpipe emissions guarantee.

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Clean Energy Projects

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Countries Served

Our Services

Reliable Performance Guarantees

GraniteFuel can manage and maintain the performance of your biogas upgrading system. We can provide remote monitoring of your system to optimize performance and be proactive with system maintenance. 

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Aspiration

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Vision

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Mission

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Complete Solutions For High-Efficiency RNG Upgrading

GraniteFuel engineers and designs a full range of integrated components to meet your needs. Benefit from the ease and efficiency of our fully integrated solutions.

Landfill

Wastewater

Agriculture

SSO

All Solutions

Why Choose Us

Proven Performance

GraniteFuel helped MountainView Landfill meet a tailpipe emissions requirement by installing our gas conditioning system combined with our engine exhaust emissions control system.

The Difference is Our People.

Our people make everything happen!

GraniteFuel is expanding and looking to add to our strong engineering team to build our products and support and service our customers. 

Career Opportunities

Our Awesome Projects

Pioneering Clean Energy Solutions

Transforming Biogas into Sustainable Power for a Greener Future

All Projects

Clarkson Wastewater Treatment Plant

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Florida Dairy Biogas RNG Plant

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Rialto Organics Diversion Digestion

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Biogas Dehydration Systems for Reliable RNG Upgrading Performance

The GraniteFuel Biogas Dehydration System removes moisture and condensate from raw biogas before it enters the upgrading stage. Moisture is one of the most common causes of corrosion, compressor failure, and membrane fouling in renewable natural gas (RNG) facilities. By precisely controlling the dew point, the system ensures that gas entering the compression and separation stages is dry, stable, and consistent in quality.

Each dehydration system is engineered for continuous operation in variable site conditions. Whether installed at a farm-based digester, a wastewater treatment plant, or a landfill gas recovery project, it safeguards downstream equipment, minimizes maintenance, and helps operators maintain steady gas output. The result is a cleaner, more dependable feed gas that supports higher uptime and longer service life for the entire biogas upgrading process.

Key Features and Benefits of the Biogas Dehydration System

High moisture removal efficiency

The system combines staged gas cooling and condensate separation to achieve reliable dew point control. This protects compressors, valves, and membranes from water-related damage and extends the lifespan of downstream components.

Corrosion-resistant construction

Built with stainless steel wetted surfaces and coated heat exchangers, the Biogas Dehydration System withstands the acidic and humid environment typical of raw biogas, delivering years of reliable service with minimal corrosion risk.

Automatic temperature and condensate management

Integrated temperature sensors and level controls automatically regulate cooling and condensate discharge. This allows for unattended operation and consistent drying performance during variable gas flow or changing site conditions.

Compact, skid-mounted design

All key components are assembled on a single skid, reducing installation time and space requirements. The modular layout allows for quick integration into existing conditioning or upgrading systems.

Low maintenance requirements

The design minimizes moving parts and simplifies access for inspection. Operators benefit from longer intervals between service events, reduced downtime, and fewer manual interventions.

Compatibility across the GraniteFuel platform

The dehydration unit connects directly with GraniteFuel’s H₂S Removal, VOC/Siloxane Removal, and Compression Systems, forming a complete and efficient biogas conditioning train.

Biogas Dehydration System Applications in RNG and Biogas Projects

Agricultural Biogas and Farm Digesters

In agricultural digesters, gas streams often carry high levels of moisture from fermentation. The Biogas Dehydration System provides effective cooling and water separation to protect equipment such as regenerative blowers, catalytic polishing units, and upgrading membranes. By stabilizing gas quality at the source, operators achieve more predictable methane yields and lower maintenance costs across their RNG production line.

Wastewater Treatment and Municipal Applications

Biogas generated in wastewater treatment plants contains water vapor and trace contaminants that can degrade compressor oil and damage polishing filters. GraniteFuel’s dehydration technology ensures that gas entering the upgrading process is clean and dry. This improves plant reliability and helps utilities meet continuous operation targets without unscheduled maintenance.

Landfill Gas Conditioning and Recovery

Landfill gas upgrading presents unique challenges due to fluctuating temperatures and humidity levels. The Biogas Dehydration System maintains steady performance across these variations, ensuring that gas supplied to the upgrading module or flare meets required moisture specifications. This improves process efficiency and reduces operational risk for landfill gas-to-energy and RNG injection systems.

Integration with Other GraniteFuel Systems

The Biogas Dehydration System operates as an integral part of GraniteFuel’s complete conditioning and upgrading suite. It typically follows a feed gas filtration or knockout stage and precedes the H₂S Removal System in the process flow. From there, the dry, conditioned gas moves on to the Compression and Gas Separation Systems for methane concentration and final polishing.

Each dehydration skid connects easily with GraniteFuel’s electrical and control infrastructure, ensuring seamless operation and unified system monitoring. The same control logic manages temperature, condensate discharge, and alarm functions across multiple units. This modular compatibility makes it ideal for new installations or for retrofitting into existing RNG plants.

Operators using the Biogas Dehydration System gain both performance and peace of mind. Consistent gas quality protects high-value downstream assets while GraniteFuel’s platform design ensures every component, mechanical, electrical, and control, is engineered to work together as one reliable system.

Common Biogas Dehydration Questions and Answers

How does a biogas dehydration system work?

A biogas dehydration system removes water vapor by cooling the gas stream until moisture condenses, then separating and draining the liquid condensate. The resulting dry gas maintains a stable dew point, preventing corrosion and improving performance of compressors and membranes in RNG upgrading systems.

Moisture can cause operational problems at every stage of gas upgrading. Without dehydration, condensate may accumulate in compressors or foul membrane elements, leading to higher energy use, unplanned downtime, and costly repairs. Dehydrating the gas ensures smoother flow, consistent pressure, and longer equipment life.

Yes. The system is designed for flexible operation under fluctuating flow and temperature conditions. Automatic temperature control and condensate management maintain stable performance even during rapid load changes, making it suitable for digesters, landfills, and municipal plants with variable gas production rates.

Contact GraniteFuel Engineering to discuss how our Biogas Dehydration System can improve gas quality and enhance the performance of your RNG upgrading project.