Membrane Module Selection
Select membrane modules and initial membrane-bank arrangements according to feed conditions, product targets and operating requirements.
About Mairui
Membrane-Based Gas Separation Solutions for Industrial Applications
Mairui Gas focuses on membrane-based gas separation technologies, providing membrane modules and project-specific systems for industrial customers in China and international markets. Its capabilities cover nitrogen generation, oxygen enrichment, CO₂ separation, gas dehumidification and biogas upgrading.
Explore Engineering Capability
Who We Are
Who We Are
Mairui is a membrane-based gas separation solution provider. Our work extends from membrane modules to membrane-bank configuration, process design and system integration, with the aim of matching membrane technology to actual operating conditions and the agreed project scope.
Mairui's core team brings more than 20 years of experience in gas separation and gas engineering. This refers to the team's professional experience rather than the age of the company.
Our technical work applies polysulfone hollow-fiber membranes across nitrogen generation, oxygen enrichment, CO₂ separation and gas dehumidification. Learn more about membrane principles and engineering factors on the Technology page.
Engineering Capability
Engineering Capability
Mairui coordinates membrane modules, process design and system interfaces around the actual separation duty and project boundary.
Process Design
Define the process arrangement, pretreatment needs, control logic and key system boundaries around the separation duty.
System Integration
Coordinate membrane banks, piping, valves, monitoring and control interfaces within the agreed project scope.
Project Support
Support technical communication, interface confirmation, commissioning preparation and engineering coordination during implementation.
From Modules to Systems
From Membrane Modules to Gas Separation Systems
A membrane module becomes part of a deliverable gas separation system only when it is matched to operating conditions, process configuration, pretreatment, piping, valves, monitoring and control functions.
Mairui coordinates these engineering elements according to the project scope so that the membrane technology aligns with site conditions and delivery boundaries.
Industries We Serve
Industries We Serve
These entry points summarize typical industrial gas separation settings in which Mairui participates. Application pages provide the relevant context.
Oil & Gas
Nitrogen supply, inerting, CO₂ removal and selected natural gas treatment duties.
Marine & Offshore
Onboard nitrogen, inerting, purging and selected offshore project applications.
Biogas Upgrading & Biomethane
Raw biogas treatment, biomethane production and Bio-CNG project requirements.
CO₂ Removal & CCUS
CO₂ removal, gas treatment and selected CCUS-related separation assessments.
Laser Cutting & Welding
On-site nitrogen supply for laser cutting, laser welding and metal processing.
Oxygen Enrichment
Oxygen-enriched air generation for selected industrial process applications.
Our Facility
Our Facility
Real images of the building entrance and company identity provide a direct view of the environment used for engineering communication and project coordination.
Mairui carries out technical communication, engineering coordination, customer discussions and project support from Hangzhou, China.
Partnership Opportunities
Partnership Opportunities
Mairui welcomes cooperation with EPC companies, system integrators and distribution partners on membrane-based gas separation projects.
About FAQ
About Mairui
Key information about Mairui's scope, engineering approach and cooperation boundaries.
What does Mairui focus on?
Mairui focuses on membrane-based gas separation and its engineering application. Its scope includes nitrogen, oxygen, CO₂ separation and gas dehumidification membrane modules, together with membrane-based systems for nitrogen generation, oxygen enrichment, biogas upgrading, CO₂ removal and gas dehumidification. Each project is still evaluated against its operating conditions and agreed boundaries.
Does Mairui provide membrane modules or complete systems?
Mairui can provide approved gas separation membrane modules and can also develop membrane-bank configurations, process arrangements, pretreatment requirements and system integration around the feed conditions, product targets, operating requirements and agreed supply scope. The final deliverables are confirmed through project-specific technical communication.
Which industries does Mairui serve?
Mairui works across oil and gas, marine and offshore, biogas upgrading and biomethane, CO₂ removal and CCUS, laser cutting and welding, and oxygen enrichment applications. Because feed conditions, product objectives and site requirements differ, the application pages describe typical needs rather than a fixed solution for every project.
Does Mairui support project-specific solutions?
Yes. Mairui evaluates the feed conditions, product specification, pressure, temperature, dew point, installation environment and project interfaces before defining membrane selection, membrane-bank configuration, process arrangement, pretreatment needs and control interfaces. The final scope is agreed against confirmed technical conditions and delivery responsibilities.
How does Mairui work with EPC companies, system integrators and distribution partners?
Mairui can cooperate on application assessment, membrane selection, process recommendations, technical documentation and system interface coordination. At the start of a project, the parties clarify customer requirements, design conditions, supply boundaries, responsibilities and communication milestones. Distribution cooperation is evaluated against the target market and specific project opportunities.
Discuss Your Gas Separation Project
Tell us your application and project requirements. Our team will review the operating context and provide initial technical and solution support.