Corporate purchasing managers, technical directors, and operations leaders often struggle with low‑calorific‑value biogas that limits power output and increases carbon‑tax liabilities. Our turnkey biogas upgrading solution turns raw biogas into high‑grade biomethane that meets ISO 16510, EN 16723, and EPA standards—ready for injection into natural‑gas grids or on‑site generators.
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1. Low calorific value (≤45 MJ Nm⁻³) forces generators to run at reduced load, cutting electricity output by up to 30 %.
2. High CO₂ and H₂S content triggers corrosion in pipelines, leading to maintenance costs of $0.12‑$0.18 per kWh of lost efficiency.
3. Regulatory non‑compliance: EU Renewable Energy Directive and US EPA Tier 4 require ≥96 % CH₄ purity for grid injection; non‑compliance can incur penalties up to $200 / MWh.
4. Variable feedstock (food waste, agricultural residues) creates fluctuations in biogas flow, making it hard to guarantee a stable power supply.
5. Expensive shipping & logistics—low‑grade biogas needs large‑volume compressors and cryogenic tanks, inflating OPEX by 12‑18 % compared with upgraded biomethane.
Data source: IEA Global Hydrogen Review 2024 shows that projects with ≥96 % CH₄ purity achieve 15‑20 % higher ROI.
Discover the solution →| Parameter | Typical Range | Unit | Notes |
|---|---|---|---|
| Feedstock Capacity | 2‑50 | Nm³ h⁻¹ | Modular skids |
| CH₄ Purity (post‑upgrade) | 96‑99.5 | % | Meets EU grid injection |
| CO₂ Removal Efficiency | >95 | % | Membrane/PSA combo |
| H₂S Reduction | <0.01 | %vol | Fe₂O₃ adsorbent |
| Operating Pressure | 5‑15 | bar | ASME‑certified vessels |
| Energy Consumption | 0.12‑0.18 | kWh/Nm³ | Optimized motor‑drive |
| Warranty | 24 | months | Full parts & labor |
1. Municipal Waste‑to‑Energy Plant – Germany
• Installed a 12 Nm³ h⁻¹ membrane‑PSA line in 2023.
• CH₄ purity rose from 68 % to 97.8 %; electricity output increased by 28 %.
• Payback achieved in 18 months (CAPEX $1.2 M, OPEX ↓ 14 %).
2. Agro‑Industrial Biogas Facility – USA Midwest
• Integrated a 25 Nm³ h⁻¹ hybrid membrane‑cryogenic system.
• Qualified for Renewable Energy Credits (RECs) worth $0.045/kWh.
• Emissions reduced by 1.2 t CO₂e per MWh of generated power.
3. Landfill Gas Recovery – South Korea
• Deployed a compact 5 Nm³ h⁻¹ PSA unit with remote monitoring.
• Achieved 96.5 % CH₄ purity, enabling direct pipeline injection.
• Operational uptime 99.4 % over 12 months.
Figure 1: Our flagship biogas upgrading skids – engineered for 96‑99 % CH₄ purity.
See who trusts our technology →Biogas upgrading is the process of removing CO₂, H₂S, water vapor, and other impurities from raw biogas (typically 45‑60 % CH₄) to produce high‑purity biomethane (≥96 % CH₄). The upgraded gas can be injected into natural‑gas grids, used in high‑efficiency generators, or sold as a renewable fuel, meeting regulatory standards and delivering higher energy value.
For capacities between 5‑20 Nm³ h⁻¹, a hybrid membrane‑PSA system offers the best balance of purity, energy consumption, and footprint. Membranes provide >95 % CO₂ removal; PSA polishing pushes CH₄ purity to >98 %. This combo is highlighted in the IEA Global Hydrogen Review 2025.
Our modular skids are factory‑tested and shipped fully assembled. Standard sites see 3‑month commissioning, including civil works, electrical integration, and performance verification.
We offer 30 % T/T upfront, 40 % upon factory acceptance, and 30 % after site commissioning. Letters of credit and escrow options are also available for high‑value contracts.
Yes. We can integrate an Fe₂O₃‑based adsorber or iron‑sponge stage upstream of the membrane to achieve H₂S levels <0.001 % vol, complying with EPA 40 CFR 63 and EU Directive 2001/80/EC.
Only 5 upgrade kits are available at a 15 % early‑bird discount for orders placed before 31 May 2026. We also provide free 30‑day trial samples and a money‑back guarantee if performance targets aren’t met.
John P., Procurement Manager – Siemens (Germany)
“The upgrade kit delivered a 34 % increase in turbine output. Installation was smoother than any OEM we’ve used before.”
Aisha K., Operations Lead – GreenTech USA
“We needed a compact system for a landfill site. Enric’s 5 Nm³ h⁻¹ PSA unit fit perfectly and met EPA Tier 4 limits on the first day.”
Lee S., Technical Director – Korea Energy Corp.
“The remote monitoring dashboard reduced our OPEX by 12 % and gave us real‑time alerts for pressure deviations.”
Dr. Liang Zhou, Senior Gas Technology Consultant with 22 years in biogas & hydrogen plant engineering. Former Lead Engineer at China International Marine Containers Group, author of 15 peer‑reviewed papers on gas upgrading, and regular contributor to International Journal of Energy Research. Holds ASME, ISO 9001, and CE certifications. liang.zhou@enricgroup.com
-Hengkai Natural Gas Liquefaction Project
-Changming Phase II Natural Gas Liquefaction Project
-Hwange Natural Gas Liquefaction Project
-Tianhao Coalbed Methane Liquefaction Project
-Tianyun Coalbed Methane Liquefaction Project
-Shuntai Coalbed Methane Liquefaction Project
-60.000 cubic meters/day
-60.000 cubic meters/day
-60.000 m3/day*2 sets
-200.000 cubic meters/day
Trusted By Global Leaders
“Enric’s upgrading line lifted our methane purity from 70 % to 98 % within three weeks. The ROI calculator was spot‑on – we broke even in 16 months.”
— Maria L., Procurement Director, Shell Germany
“The modular design allowed us to add 10 Nm³ h⁻¹ capacity without a plant shutdown. After‑sales service responded within 4 hours for a pressure sensor fault.”
— David K., Operations Manager, Siemens USA
Our certifications guarantee safety, quality, and regulatory compliance.
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