Biogas to Renewable Natural Gas: Advanced Membrane Separation
System for Efficient Purification
Product Overview
Lide's Biogas Membrane Separation System transforms raw biogas into
high-purity renewable natural gas (RNG) through a cutting-edge
two-stage process: pretreatment and membrane separation. Raw biogas, typically composed of 55% CH₄, 45% CO₂, and trace
impurities like H₂S and H₂O, undergoes rigorous purification to
meet national natural gas standards (GB17820-2012, Class II). This
system is engineered for sustainability, efficiency, and long-term
reliability, making it ideal for biogas plants, wastewater
treatment facilities, and agricultural operations seeking to
monetize biogas resources.
Key Features & Advantages
1. Highly Efficient Purification Process
The system integrates a multi-stage pretreatment unit (including
fine filtration, refrigerated dryers, and heat exchangers) to
remove solid impurities down to 0.01µm, eliminate moisture, and
adjust gas temperature to 30°C--optimal for membrane performance.
The core membrane separation technology leverages selective
permeation: "fast gases" (CO₂, H₂S) diffuse through the polymer
membrane, while "slow gas" (CH₄) is retained as product gas. A
multi-stage membrane module design with high separation
coefficients ensures CH₄ concentration ≥97% and recovery rates ≥97%, maximizing resource utilization.
2. Compact, Low-Maintenance Design
With minimal moving parts, the system boasts a small footprint and low maintenance requirements, reducing operational downtime and costs. Its quick startup time
allows rapid achievement of design specifications, ensuring
continuous productivity. The membrane system's 10+ year lifespan guarantees long-term return on investment, supported by Lide's
industry-leading after-sales service team.
3. Sustainable & Reliable Operation
Designed for 24/7 stability, the system operates at atmospheric
inlet pressure, eliminating the need for high-pressure feed
systems. All product gas指标 comply with GB17820-2012 Class II
standards, making it suitable for injection into natural gas
pipelines, vehicle fuel, or industrial heating.
Technical Specifications
| Parameter | Value |
|---|
| Applicable Raw Gas Flow Rate | 3,000-40,000 Nm³/d |
| Inlet Temperature | 30°C |
| Inlet Pressure | Atmospheric |
| Product Gas CH₄ Concentration | ≥97% |
| Product Gas Recovery Rate | ≥97% |
| Membrane System Lifespan | >10 years |
| Compliance | GB17820-2012 (Class II) |
Frequently Asked Questions (FAQ)
Q1: What is the typical startup time for the system?
A: The system reaches design specifications within a short startup period (varies by flow rate, typically 30-60 minutes), ensuring minimal
delays in gas production.
Q2: How does the system handle H₂S and moisture?
A: The pretreatment stage includes H₂S scrubbing and refrigerated
drying to remove moisture, protecting membranes from degradation
and ensuring long-term efficiency.
Q3: Can the system be scaled for larger biogas plants?
A: Yes, the modular design supports flow rates up to 40,000 Nm³/d,
with customizable configurations for higher capacities.
Q4: What after-sales support is provided?
A: Lide offers comprehensive support, including installation
guidance, operator training, and 24/7 technical assistance to
ensure optimal performance.
Why Choose Lide's Membrane System?
Lide's Biogas Membrane Separation System combines innovation,
sustainability, and cost-effectiveness to unlock the full potential
of biogas as a clean energy source. With industry-leading
purification efficiency, low operational costs, and a focus on
durability, it is the trusted choice for businesses aiming to
reduce carbon footprints and generate revenue from renewable
natural gas.
Transform your biogas into a valuable resource --contact Lide today
for a customized solution.
Keywords: Biogas purification, membrane separation system,
renewable natural gas (RNG), CH₄ recovery, GB17820-2012,
sustainable energy, biogas to pipeline gas.
