Unlock cleaner, more efficient biogas upgrading with PCI Gases’ reliable oxygen generation systems

Driving Performance in Biogas Operations

As the demand for renewable energy continues to rise, biogas has become a key player in the global transition to cleaner fuel sources. However, optimizing biogas quality requires more than just anaerobic digestion. Oxygen injection—particularly through reliable on-site oxygen generation—plays a pivotal role in increasing methane yield, improving gas quality, and lowering emissions. PCI Gases offers robust oxygen generators for biogas facilities, enabling cost-effective, efficient, and autonomous oxygen supply.

The Value of Oxygen in Biogas Processing

Oxygen is used in biogas applications primarily for biological desulfurization and composting processes. Adding oxygen to digesters or post-treatment systems enhances the breakdown of harmful gases such as hydrogen sulfide (H₂S), which must be removed before biogas can be injected into the gas grid or used as fuel.

Traditional oxygen supply methods—like liquid oxygen (LOX) or gas cylinders—are expensive and logistically demanding. PCI Gases’ DOCS systems offer a smarter solution. Our vacuum swing adsorption (VSA) technology allows biogas plants to produce oxygen on-site, at low pressure, with exceptional energy efficiency and reliability.

PCI Gases Solutions: On-Site Oxygen Generators for Biogas Efficiency

PCI Gases’ Deployable Oxygen Concentration Systems (DOCS) are engineered for rugged industrial use. They’re ideal for biogas facilities processing waste from agriculture, food industries, wastewater, or landfills. Here’s why:

• Energy-efficient design: VSA technology uses up to 50% less energy than comparable PSA systems.

• Modular and scalable: Easily integrate into existing biogas infrastructure.

• Reduced logistics: Eliminate the cost and complexity of LOX or gas delivery.

• Consistent oxygen purity: Our DOCS units ensure reliable performance around the clock.

• Low maintenance: Designed for minimal downtime and long service life in remote or demanding environments.

With on-site oxygen generators for biogas operations, facilities gain better control over their processes and outputs.

Sustainable Outcomes and Lower Operating Costs

Customers using PCI Gases’ oxygen systems in their biogas processes gained:

• Improved H₂S removal and cleaner biogas

• Higher methane concentration, enabling better energy recovery

• Longer equipment life, with less corrosion from sulfur gases

• Lower operational costs, thanks to autonomous oxygen generation

On-site oxygen generation is not only a technical advantage—it’s a step toward greater energy resilience and environmental responsibility.

Choosing oxygen generators for biogas isn’t just about efficiency—it’s about long-term sustainability, cost savings, and independence. With PCI Gases’ DOCS systems, you can elevate your biogas plant’s performance and align with global clean energy goals. Learn more at www.pcigases.com.

VSA Technology

To produce oxygen from air, PCI uses a proprietary Vacuum Swing Adsorption (VSA) process that eliminates many of the design problems associated with traditional on-site gas separation systems (PSA). Our innovative VSA system eliminates the need for process valves, feed air compressors, associated dryers and feed air filtering systems. Our robust VSA oxygen process extracts maximum sieve and power efficiencies = low cost (both CapX and OpX) high purity oxygen generation. Oxygen produced is 93% purity. Additional product/systems features include load following, remote monitoring and diagnostics along with an industry only 10-year warranty on the adsorber bed vessel. Average life span of our systems is 10-15+ years.

About PCI Gases

PCI Gases, headquartered in Riverside, California, is a global leader in advanced on-site gas generation systems. Specializing in VSA technology for oxygen production, the company has been delivering innovative gas separation solutions since 1984. PCI Gases serves a wide range of industries, including medical, industrial, aquaculture, biogas, water treatment, and military applications.With a mission to empower industries by providing autonomy in oxygen and nitrogen supply, PCI Gases helps clients reduce costs and improve sustainability. Their vision is to decentralize gas supply, offering economical and environmentally responsible solutions worldwide. Through a commitment to innovation and operational efficiency, PCI Gases continues to reshape industries and enhance the total cost of ownership for their customers.

Reshape Your Tomorrow!

Let PCI Gases help you reshape your biogas processes—efficiently, reliably, and sustainably.

Contact our Sales Directors here:
https://www.pcigases.com/contact/

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PCI Gases Exhibiting at BIOGAS AMERICAS 2025