Biogas Upgrading System

HUAYI Biogas Upgrading System is designed to purify raw biogas and increase its methane concentration for biomethane production and gas utilization.

Raw biogas may contain carbon dioxide (CO2), hydrogen sulfide (H2S), moisture and other impurities that need to be removed or reduced before downstream utilization. Depending on the raw biogas composition and required product gas quality, the upgrading process can integrate gas pretreatment, compression, drying, desulfurization, membrane separation and other treatment stages.

The system can be engineered according to project-specific biogas flow rate, inlet gas composition, required methane concentration, operating pressure and downstream application. Typical applications include agricultural biogas projects, livestock and poultry waste treatment, organic waste treatment, wastewater treatment and other renewable natural gas or biomethane projects.

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Detail

Product Overview

HUAYI Biogas Upgrading System is an integrated gas treatment system designed to remove impurities from raw biogas and increase methane concentration for biomethane production and downstream gas utilization.

Raw biogas typically requires treatment before it can be used as a higher-quality gaseous fuel. The required treatment process depends on the raw gas composition, gas flow rate, methane concentration, operating pressure and required product gas specification.

Typical Treatment Process

Depending on project requirements, the biogas upgrading system can integrate several treatment stages, including:

Raw biogas pretreatment
Hydrogen sulfide (H2S) removal
Moisture removal and gas drying
Gas compression
Carbon dioxide (CO2) removal
Membrane separation
Gas filtration
Process monitoring and control

The actual process configuration is selected according to the characteristics of the raw biogas and the required product gas quality.

Membrane Separation

Membrane separation can be used as one of the main upgrading stages to separate carbon dioxide and other gas components from methane.

After pretreatment and compression, the biogas passes through the membrane separation system. Different gas components permeate through the membrane at different rates, allowing methane concentration to be increased in the product gas.

The membrane configuration and number of separation stages can be engineered according to the inlet gas composition, required methane recovery and product gas specification.

System Configuration

A complete biogas upgrading system can be engineered with equipment such as:

Gas pretreatment equipment
Desulfurization unit
Gas compressor
Gas drying equipment
Membrane separation modules
Filters and separators
Process piping and valves
Instrumentation
PLC control system
Skid-mounted equipment packages

Actual equipment configuration depends on the requirements of each project.

Typical Applications

HUAYI biogas upgrading systems can be applied to biogas generated from:

Livestock and poultry manure
Agricultural waste
Food and organic waste
Wastewater treatment
Anaerobic digestion plants
Other organic waste treatment projects

The upgraded gas can be used for biomethane and renewable natural gas applications according to the required project specification and applicable local standards.

Project-Specific Engineering

Biogas composition and project requirements vary considerably between different feedstocks and digestion processes. HUAYI can configure the upgrading system according to project-specific operating conditions.

For technical evaluation, customers are recommended to provide:

Raw biogas flow rate
Raw biogas composition
CH4 concentration
CO2 concentration
H2S concentration
Moisture content
Inlet pressure and temperature
Required product gas specification
Required operating hours
Project location and applicable standards