The post-mounted natural gas dryer regenerates the finished natural gas by reducing it from 25 MPa to ~0.8 MPa. The regenerated gas is then returned to the compressor inlet. During regeneration, the compressor must be in operation, and the running time must be between 6 to 8 hours.

Features:

1、The lifespan of valves, adsorbents, etc., operating under high pressure, is 6 to 12 months, with the overall device lifespan ranging from 5 to 8 years, accompanied by relatively high maintenance costs.

2. The Posterior natural gas dryer is located after the compressor. The pressurization of the compressor will cause part of the moisture in the natural gas to precipitate in the form of free water, forming an acidic environment and corroding subsequent equipment, especially the compressor.

3、Molecular sieves adsorb in a saturated water state, subjecting the equipment to alternating high and low-pressure loads. The adsorbent is easily contaminated and poisoned by compressor oil, necessitating frequent replacement of molecular sieves, with a lifespan of 3 to 5 months.

4、High operating pressure leads to the easy damage of valve components, which are expensive to replace. Additionally, molecular sieves are prone to fragmentation and failure under high pressure differentials, resulting in high maintenance costs.

5、Suitable for lower pipeline pressures; occupies a smaller footprint; and has lower initial investment costs.

Precautions for use

Ensuring the effective and safe operation of a posterior natural gas dryer involves adherence to several key precautions. First and foremost, regular maintenance checks are imperative to monitor the condition of the dryer components, including valves, filters, and desiccant beds. This proactive approach helps identify potential issues before they escalate, minimizing downtime and optimizing performance.

It is also important to strictly adhere to safety protocols during installation, operation and maintenance. Personnel should be adequately trained to operate the equipment and must carefully follow all safety guidelines provided by the manufacturer. Regular monitoring of pressure levels and temperatures within the dryer can prevent overloading and potential hazards.

The installation area requires adequate ventilation to dissipate any released gases or vapors. Adequate ventilation not only keeps personnel safe but also maintains dryer efficiency. By prioritizing these preventive measures, users can extend the life of their natural gas dryer systems.