Biogas & RNG

Knox Western’s Biogas and Renewable Natural Gas (RNG) Compressors are engineered for demanding renewable energy applications, combining robust design with proven reliability. Built in compliance with API 618 standards, our oil-free reciprocating compressors are optimized to safely and efficiently process biogas streams—including H₂S-rich (sour gas) environments—from initial collection through final injection.

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Key Features & Benefits:

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• Sour Gas Capability: Designed with corrosion-resistant materials and advanced sealing systems to reliably handle biogas streams containing hydrogen sulfide (H₂S).
• Oil-Free Compression: Non-lubricated technology ensures contamination-free operation and protects downstream purification systems.
• API 618 Compliance: Guarantees mechanical integrity, pulsation control, and long service life under continuous-duty conditions.
• High-Pressure Operation: Capable of compressing purified biogas and Bio-CNG up to 300 bar / 4,500 psi, suitable for storage, transport, and fueling applications.
• Customizable Configurations: Modular single- and multi-stage compressors tailored to flow rates, gas composition, and site conditions.

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Application Areas:

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• Raw Biogas Handling: Compression of unprocessed biogas streams for delivery to membrane separation plants and upgrading systems.
• RNG Pipeline Injection: Compression of purified biomethane for direct injection into natural gas distribution networks.
• Bio-CNG Production: High-pressure compression for bio-compressed natural gas (bio-CNG) used in transportation and industrial applications.
• Waste-to-Energy Projects: Reliable compression solutions for municipal and agricultural biogas recovery.

Why Knox Western?

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With decades of expertise in oil-free reciprocating compressor technology, Knox Western delivers safe, leak-tight, and corrosion-resistant solutions designed to meet the challenges of renewable gas production. Our compressors support the full biogas value chain—from raw gas collection to high-pressure RNG fueling—empowering operators to maximize efficiency, safety, and sustainability.

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“Powering the future of clean energy with safe, efficient biogas and RNG compression”