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Methanation Catalysts for Gas Purification & SNG Production

Industrial Methanation Catalysts for COx Removal and Synthetic Natural Gas Production

Looking for a methanation catalyst supplier for your ammonia plant, hydrogen production unit or synthetic natural gas project?

We supply nickel-based methanation catalysts for two major industrial applications: converting residual carbon monoxide (CO) and carbon dioxide (CO₂) in hydrogen-rich process gas, and converting CO/CO₂-rich feedstocks into methane for synthetic natural gas (SNG) production.

Our product range includes catalysts for final gas purification in ammonia and hydrogen production, as well as high-temperature methanation of coke oven gas, coal-derived gas and suitable industrial gas streams.

Whether you are planning a new methanation unit, replacing an existing catalyst or evaluating a process upgrade, explore our products and request technical guidance based on your feed gas composition and operating requirements.

Request Specifications & Pricing


Industrial Methanation Catalysts for CO & CO₂ Conversion

Methanation is a catalytic hydrogenation process that converts carbon monoxide and carbon dioxide into methane and water in the presence of hydrogen.

The main reactions are:

CO + 3H₂ → CH₄ + H₂O

CO₂ + 4H₂ → CH₄ + 2H₂O

Both reactions are exothermic, meaning that heat is released during conversion. Catalyst selection and reactor temperature control are therefore important considerations.

Industrial methanation catalysts serve two distinct process requirements.

COx Removal in Hydrogen-Rich Gas

In ammonia and selected hydrogen processing systems, methanation converts small amounts of residual CO and CO₂ into methane and water. This reduces carbon oxide concentrations before downstream processing.

Synthetic Natural Gas Production

In SNG projects, methanation converts suitable CO, CO₂ and hydrogen mixtures into methane-rich gas. The resulting gas undergoes the required downstream treatment before delivery or further processing into CNG or LNG.

These applications require different catalyst operating conditions and reactor designs.

 

Explore Our Methanation Catalyst Products

Our nickel-based methanation catalysts cover two main applications: residual CO and CO₂ removal from hydrogen-rich process gas, and methane synthesis for synthetic natural gas (SNG) production. The range supports new methanation units, catalyst replacement and existing plant upgrades, with catalyst selection based on feed gas composition, operating conditions and process requirements.

Product Type Methanation Catalyst for COx Removal Coke Oven Gas & High-Temperature Methanation Catalyst
Product Series SCST-241 SCST-242
Catalyst Formulation Nickel-based Nickel-based
Main Function Convert low concentrations of residual CO and CO₂ into methane and water for final gas purification Convert suitable CO, CO₂ and hydrogen-rich feedstocks into methane for SNG production
Typical Applications Ammonia synthesis gas purification after CO shift and CO₂ removal; selected hydrogen processing systems Coal-to-SNG production, coke oven gas methanation and industrial methane synthesis
Suitable Feed Gas Hydrogen-rich streams with low residual carbon oxide concentrations Qualified coal-derived gas, coke oven gas and methanol purge gas
Operating Temperature 230–430°C; first-stage inlet: 230–270°C 250–700°C
Operating Pressure 0.5–32.0 MPa ≤5.0 MPa
Gas Hourly Space Velocity ≤13,000 h⁻¹ ≤20,000 h⁻¹
Feed Gas Impurity Limits Sulfur ≤0.1 ppm; chloride ≤0.03 ppm Sulfur ≤50 ppb
Catalyst Forms Spherical Cylindrical and structured
Key Selection Considerations Residual COx concentration, feed gas purity and required outlet gas quality Feedstock compatibility, reaction heat management, thermal stability and mechanical strength
Product Specifications View Methanation Catalyst Specifications View Coke Oven Gas Methanation Catalyst Specifications

The operating values above are published references. Final catalyst selection and operating limits should be confirmed against the latest product specifications, feed gas analysis and reactor requirements. For SNG applications, heat management and catalyst configuration also require process-specific evaluation.


Compare Methanation Catalysts by Industrial Application

Different methanation duties require different catalyst specifications.

The following comparison helps industrial buyers identify the appropriate product category before requesting detailed technical information.

Selection Factor COx Purification Methanation SNG Methanation
Main purpose Convert residual CO and CO₂ in hydrogen-rich gas Produce methane-rich gas
Typical feed Hydrogen-rich gas with low residual COx CO/CO₂/H₂-rich gas
Common plant type Ammonia and hydrogen processing Coal-to-SNG and coke oven gas utilization
Reference temperature 230–430°C 250–700°C
Reference pressure 0.5–32.0 MPa ≤5.0 MPa
Important selection factors Outlet COx target, impurities, pressure and space velocity Feed composition, conversion duty, heat management and catalyst stability

Which Methanation Catalyst Do You Need?

  • For residual CO and CO₂ removal in an ammonia plant, explore our gas purification methanation catalyst.

  • For methane production from coke oven gas or coal-derived syngas, explore our high-temperature SNG methanation catalyst.

The products are not directly interchangeable. Final selection depends on the reactor design, gas composition and process objectives.

Request Methanation Catalyst Selection Support


Industrial Applications of Methanation Catalysts

Ammonia Synthesis Gas Purification

Methanation is commonly used as a final carbon oxide conversion stage in conventional ammonia production processes.

After CO shift conversion and bulk CO₂ removal, small amounts of carbon monoxide and carbon dioxide may remain in the hydrogen-rich synthesis gas.

Methanation catalysts convert these residual carbon oxides into methane and water, helping prepare the gas for downstream ammonia synthesis.

The suitability of a catalyst depends on the inlet COx concentration, hydrogen content, operating temperature, pressure and impurity levels.

Explore related CO shift catalysts and ammonia synthesis catalyst products.

Hydrogen-Rich Process Gas Treatment

Methanation may be used in selected hydrogen processing systems where residual carbon oxide conversion is required.

The process converts CO and CO₂ into methane and water while consuming hydrogen. It should therefore be selected only when the resulting gas composition is appropriate for downstream use.

For hydrogen production processes requiring reforming, shift conversion or other purification methods, explore our hydrogen production catalyst range.

Coke Oven Gas to Synthetic Natural Gas

Coke oven gas can serve as a feedstock for industrial methane synthesis when its composition and pretreatment conditions are suitable.

Methanation converts appropriate carbon oxide and hydrogen mixtures into methane-rich gas.

Catalyst selection should consider the CO/CO₂ ratio, hydrogen availability, sulfur concentration, reactor temperature profile and required product gas composition.

Our high-temperature methanation catalyst is intended for selected coke oven gas-to-SNG applications.

Coal-to-Synthetic Natural Gas Projects

In coal-based SNG production, coal-derived synthesis gas is conditioned before entering methanation stages.

The feed gas composition must be matched to the required methanation reactions, while sulfur and other contaminants need to be controlled to protect sensitive catalysts.

High-temperature methanation catalysts can be evaluated for suitable gas compositions and reactor designs.

For upstream processing requirements, explore our syngas catalyst products.

Industrial Gas Utilization & Methane Production

Suitable industrial process gases containing CO, CO₂ and hydrogen may be considered for methane production.

The technical feasibility depends on gas composition, availability of hydrogen, impurity concentrations, energy balance and downstream gas quality requirements.

Methanation catalysts may be part of an integrated gas utilization project when these conditions are met.


How to Select the Right Methanation Catalyst

For new installations, EPC projects and catalyst replacement requirements, use the following information to support product evaluation.

Selection Requirement Information to Provide
Process objective COx polishing or SNG production
Feed gas composition H₂, CO, CO₂, CH₄, H₂O and other major components
Gas impurities Total sulfur, sulfur species, chloride and other relevant contaminants
Operating conditions Inlet temperature, pressure, flow rate and space velocity
Performance target Required outlet COx level or methane-rich product composition
Reactor configuration Reactor type, catalyst bed volume, dimensions and temperature limits
Procurement requirements Catalyst quantity, project location and expected delivery schedule

For catalyst replacement projects, please also provide the existing catalyst grade, service history, pressure drop and any operational concerns.

Our technical team can review the available information and discuss appropriate product options.

Submit Your Methanation Process Requirements


Methanation Catalyst Supply for New Projects & Plant Revamps

New Methanation Unit & EPC Projects

For EPC contractors, engineering companies and industrial project owners, catalyst selection should be coordinated with the process design and reactor conditions.

Our methanation catalyst product range covers both residual carbon oxide purification and synthetic natural gas production applications.

We welcome technical inquiries during catalyst evaluation, equipment design coordination and procurement planning.

Catalyst Replacement & Existing Plant Maintenance

For operating ammonia plants and methane production facilities, catalyst replacement requires matching the new material to the existing reactor configuration and process requirements.

Provide the current catalyst specifications, feed gas conditions, operating history and target performance for technical review.

Catalyst Customization & Product Requirements

Different methanation reactors may require specific catalyst physical forms, dimensions or loading arrangements.

Where technically feasible, catalyst specifications and manufacturing options can be discussed according to the intended application.

Learn more about our catalyst OEM and custom manufacturing services.

 

Request Methanation Catalyst Specifications & Pricing

Looking for a methanation catalyst supplier for your next industrial project?

Whether you require a COx removal catalyst for an ammonia plant or a high-temperature methanation catalyst for synthetic natural gas production, our team can help review available product options.

We welcome inquiries from:

  • Ammonia and fertilizer manufacturers

  • Hydrogen production and gas processing plants

  • Coke oven gas utilization projects

  • Coal-to-SNG project developers

  • Chemical EPC contractors and engineering companies

  • Industrial catalyst procurement and distribution companies

Share your technical specifications, operating conditions and purchase requirements to request product information and quotation support.

Request a Methanation Catalyst Quotation

  • SCST-251

    SCST-251

    High-pressure Methanol Synthesis Catalyst

    SCST-251 High-pressure methanol synthesis catalyst is a Cu-Zn-Al catalyst. It is suitable for methanol synthesis plant with natural gas

  • SCST-252

    SCST-252

    Medium-pressure Methanol Synthesis Catalyst

    SCST-252 Medium-pressure methanol synthesis catalyst is a Cu-Zn-Al catalyst. It is suitable for methanol synthesis plant with natural gas

  • SCST-253

    SCST-253

    Low-pressure Methanol Synthesis Catalyst

    SCST-253 Low-pressure methanol synthesis catalyst is a Cu-Zn-Al catalyst. It is suitable for methanol synthesis plant with natural gas

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