Temperature Swing Adsorption

TSA (Temperature Swing Adsorption) regenerates adsorbents through cyclic heating and cooling, particularly suited for deep dehydration of industrial gases (dew point down to below −60°C) and polish removal of trace impurities (SO₂, Hg, BTEX, etc.). It is a standard process step in high-purity gas refining.

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Product & Technical Features

Multiple Molecular Sieve Types
- 3A for O₂/N₂/CH₄ drying; 4A for simultaneous dehydration and CO₂ removal; 5A for post-decarbonization deep treatment
Dual-tower Continuous Switching
- One tower in adsorption mode, one in regeneration; continuous gas supply with automatic PLC control
Multiple Regeneration Modes
- External heating gas regeneration (standard TSA), waste heat utilization (HOC-TSA, energy-saving), or refrigeration combined with TSA
Deep Drying Capability
- Outlet dew point −60°C to −100°C, meeting strict requirements for LNG pre-treatment, fuel cell hydrogen, and electronic-grade gases

Core Advantages

TSA Scheme	Outlet Dew Point	Regeneration Energy	Application
Standard TSA	−60°C ~ −100°C	Moderate	LNG pre-treatment, high-purity gas refining
HOC-TSA (Heat of Compression)	−60°C ~ −100°C	Very low	Where compression waste heat is available
Refrigeration + TSA	−60°C ~ −80°C	Low	High inlet moisture content applications

Key Applications

We provide complete TSA systems for LNG cryogenic pre-liquefaction drying, fuel cell hydrogen purification, electronic-grade N₂/H₂/Ar purification, and deep natural gas pipeline dehydration, including adsorption towers, heaters, programmed valve banks, and PLC automatic control systems.