Medium-pressure dehydration unit (freeze-drying) ）

Medium-pressure refrigerated dryers are installed inside biogas purification units. To avoid membrane module contamination by water, they conduct refrigeration dehydration of biogas under medium pressure. At the operating pressure of 1.6 MPa, the operational water dew point of biogas can reach 3–8°C, while the standard atmospheric dew point reaches -20°C.

Medium-pressure Refrigerated Dryer Technical Parameters

Applicable Gas Pressure: 1~1.8 MPa

Applicable Inlet Gas Temperature: ≤45°C

Process Medium: Biogas, natural gas

Inlet Gas Moisture Requirement: Free of liquid water

Outlet Operational Water Dew Point: 3~8°C

Outlet Standard-condition Dew Point: -20°C

Product Advantages

Customized for medium pressure with wide compatibility Specially designed for mainstream medium-pressure operating conditions of 1.0~1.8 MPa. It addresses the drawbacks of low-pressure units with insufficient pressure resistance and high-pressure units with excessive costs, delivering outstanding adaptability to medium-pressure working scenarios.

High-efficiency purification and stable gas quality It achieves excellent performance in removing water and oil via low-temperature condensation, stably controlling the dew point of compressed gas. The dryer effectively protects pneumatic components and automatic equipment to prevent process malfunctions.

Low pressure drop without loss of operating pressure Optimized internal flow channel design ensures smooth gas flow and minimal flow resistance with ultra-low pressure loss. It maintains the rated working pressure of downstream equipment without compromising production efficiency.

Intelligent fully automatic operation Equipped with an intelligent control system featuring automatic refrigeration, intelligent drainage, overload & high-temperature protection, and fault alarms. It supports unattended continuous operation with easy operation.

Low maintenance workload and superior cost performance The unit adopts a mature structure with a low failure rate and no complicated vulnerable parts; only routine periodic maintenance is required. Compared with high-pressure models, it has lower procurement and operation & maintenance costs, suitable for most industrial medium-pressure applications.

Applicable Pressure Range

Working pressure compatibility: 1.0 MPa–1.8 MPa. It perfectly connects low-pressure and high-pressure gas supply conditions and meets the vast majority of industrial medium-pressure gas supply demands.