Printed Circuit Heat Exchanger (PCHE)
Core Highlights
- Max working pressure: 60 MPa
- Temperature range: -196℃ ~ 900℃
- Compact size, 1/6 volume vs shell & tube heat exchanger
Printed Circuit Heat Exchanger (PCHE) is a microchannel welded heat exchanger, widely adopted as core cryogenic equipment for FLNG and FSRU offshore natural gas systems.
Product Overview
Thanks to their compact size, high efficiency, reliability, high heat transfer area density, and resistance to both high pressure and cryogenic temperatures, Printed Circuit Heat Exchangers (PCHEs) meet the requirements for main cryogenic heat exchangers in offshore floating LNG (FLNG) systems. In recent years, they have increasingly become the preferred choice for this application and serve as critical equipment for LNG-FSRUs.
Key Features
High heat transfer area density, ultra-high heat transfer efficiency for cryogenic service.
Operate reliably from -196°C up to 900°C, withstand pressure up to 60 MPa.
Diffusion bonding construction, minimal leakage risk, excellent weld strength.
Only 1/6 volume and weight compared with conventional shell-and-tube heat exchangers for equal thermal duty.
Technical Specifications
| Item | Parameter |
|---|---|
| Max Design Pressure | Up to 60 MPa |
| Operating Temperature Range | -196℃ ~ 900℃ |
| Manufacturing Method | Chemical Etching + Diffusion Bonding |
| Typical Material | 316L, Alloy 625, Hastelloy, Titanium |
| Channel Type | Semi-circular microchannel |
| Application Duty | Liquefaction, Regasification, Recuperation, Subcooling |
Application Sectors
Widely applicable to Floating Liquefied Natural Gas (FLNG) systems; offshore oil drilling platform components such as natural gas liquefaction condensers, recuperators, natural gas regasification evaporators, gas-to-gas heat exchangers, and subcoolers; as well as other offshore platforms and Floating Storage and Regasification Units (FSRUs).
Customization
We provide fully customized PCHE design according to your process requirements: thermal duty, pressure drop limit, fluid composition, design pressure & temperature, footprint constraints and material selection for offshore marine environment.