Natural Gas Dehydration Skid

【System Overview】

Natural gas dehydration skids can deeply remove trace moisture from natural gas, ensuring no condensate forms during compression and storage. They protect the normal operation of CNG compressors and the safety of natural gas in storage, transportation and use. Suitable for deep dehydration of medium and low pressure urban pipeline natural gas, coalbed methane, oilfield associated gas, shale gas, wellhead gas, biogas and other gases.

Natural Gas Dehydration Skid

Key advantages of the natural gas dehydration skid:

• Operating flow rate ranges from 500 to 20,000 Nm³/h
• Ready-to-use skid-mounted product, saving on-site assembly time
• Outlet atmospheric dew point: ≤ -55 ~ -70℃; Outlet filtration precision: ≤ 3μm
• Working medium: Natural gas, oilfield associated gas, shale gas, coalbed methane, biogas

Yipu – Focus on customized non-standard gas dehydration solutions. With over 16 years of professional experience in designing, manufacturing and installing natural gas dehydration systems, we serve more than 1,000 partners in 26 countries. For any special requirements, please feel free to contact us.

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【Equipment Process】

In the diagram:

• Green lines represent the adsorption process
• Red lines represent the regeneration process
• Blue lines represent the blowdown process
• Cyan lines represent the venting process

Adsorption process: As shown, the main gas flow enters Tower A through the inlet and separation filter. After dehydration, the gas reaches the outlet through the dust filter.

Regeneration process: As shown, gas is pushed into the heater by the booster. After heating, it enters Tower B for regeneration, then flows into the cooler. After gas-water separation in the separator, it returns to the booster or the inlet of Tower A.

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【Working Principle】

After removing dust and water through the separation filter, natural gas enters the adsorption tower. Adsorbents with super-strong water absorption capacity at low temperatures adsorb moisture from the natural gas. The gas then passes through the dust filter for further purification.

When the adsorbent in one tower approaches saturation, desorption (regeneration) is required. The system switches to the other tower for adsorption. A small amount of purified natural gas is pressurized by the booster, heated, and then enters the regeneration tower. High-temperature gas carries moisture out of the regeneration tower. After cooling and water separation, the gas re-enters the adsorption tower or booster, achieving zero gas consumption regeneration.

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【Core Advantages】

1. Customization on Demand

• Meets special working conditions
• Professional non-standard customization

2. Low Cost

• Circulating regeneration process
• Significantly reduces operating costs

3. High Stability

• Twin-tower structure with small pressure fluctuation
• Low noise and continuous gas supply

4. Fully Automatic Operation

• Easy to operate, reducing labor requirements
• Improves efficiency

5. High Safety

• Preset multi-level safety protection measures
• Automatic alarm function

6. Low Failure Rate

• Maintains low failure rate after 10,000 hours of operation
• Durable with almost no maintenance required

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【Technical Strength】

1. Leading Adsorption Dehydration Technology

• Uses high-performance molecular sieve adsorbents with high water absorption capacity and resistance to acidic gas (H₂S/CO₂) corrosion, ensuring deep dehydration with dew point ≤ -70℃.
• Original hot nitrogen regeneration process reduces energy consumption by 30% compared to traditional electric heating regeneration. Integrated waste heat recovery system significantly improves energy efficiency.

2. Modular and Customized Design Capability

• Core equipment adopts modular prefabrication, supporting rapid deployment (installation cycle reduced by 50%) and adapting to diverse scenarios such as offshore platforms, onshore gas fields and LNG pretreatment.
• Can customize single-tower, twin-tower or multi-tower parallel systems according to customer needs, with processing capacity covering 10,000 ~ 1,000,000 Nm³/d, flexibly matching gas fields of different scales.

3. Intelligent Control and Remote Operation & Maintenance

• Equipped with PLC+IoT intelligent control system, real-time monitoring key parameters such as pressure, temperature and dew point, supporting fault early warning and automatic adjustment.
• Optimizes adsorption-regeneration cycle through cloud big data analysis, extending molecular sieve service life and reducing operation and maintenance costs by 10%-15%.

4. Energy-Saving and Environmental Protection Technology

• Zero-emission design for regeneration tail gas, complying with EU CE, US EPA and other environmental standards.
• Energy consumption is 25%-40% lower than traditional triethylene glycol (TEG) dehydration systems, helping customers achieve carbon emission reduction goals.

5. Reliability for Long-Term Operation

• Molecular sieves adopt anti-pulverization coating technology, with service life of more than 5 years, reducing replacement frequency.
• Key components (such as valves and instruments) select international first-tier brands (e.g., Siemens, Emerson), with MTBF (Mean Time Between Failures) exceeding 100,000 hours.

6. Strong R&D and Engineering Experience

• Possesses more than 19 dehydration technology patents and software copyrights. R&D team is led by doctors and cooperates deeply with universities and colleges.
• Over 1,000 successful global cases, covering extreme working conditions such as high-sulfur gas fields in the Middle East and low-temperature environments in the Arctic.

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【Application Scenarios】

1. Urban Pipeline Natural Gas Dehydration

• Challenges: Pipeline and equipment corrosion, hydrate blockage risk, measurement and calorific value errors, environmental protection and compliance pressure.
• Yipu’s solutions: High-efficiency composite adsorption technology increases water absorption capacity by more than 30%, adapting to high flow fluctuations; intelligent regeneration system, anti-blocking and corrosion-resistant design, modular compact structure, and environmental compliance.

2. Oilfield Associated Gas and Coalbed Methane Drying & Dehydration

• Challenges: Complex and volatile gas composition, poor adaptability to extreme working conditions, harsh environment of remote oilfields/coalbed methane wells, low-pressure gas sources (e.g., coalbed methane).
• Yipu’s solutions: Targeting the characteristics of unconventional gas sources, providing “pretreatment-dehydration-regeneration” full-process optimization solution；high-efficiency composite dehydration process; modular and mobile design; and environmental compliance.

3. Shale Gas and Wellhead Gas Drying & Dehydration

• Key challenges: High pressure, high liquid content, large pressure fluctuations (2~15 MPa), large amount of fracturing fluid flowback water, and severe flow fluctuations.
• Yipu’s solutions: Dynamic adaptive dehydration process (high-pressure membrane separation + temperature swing adsorption (TSA) coupling); multi-stage pretreatment anti-pollution system; deep dehydration using hydrophobic molecular sieves to stably control water dew point below -40℃; adjusting dehydration parameters according to real-time gas volume and pressure.

4. Biogas Drying & Dehydration

• Key challenges: High humidity, complex impurities (including H₂S (50~5000 ppm), siloxanes, VOCs), which easily lead to failure of traditional adsorbents; water quality fluctuations caused by different fermentation raw materials; corrosion and equipment loss; sulfuric acid formed by the combination of H₂S and water, corroding pipelines, storage tanks and generator sets, resulting in soaring maintenance costs.
• Yipu’s technological breakthroughs: Anti-pollution pretreatment system; high-efficiency composite dehydration process; energy-self-sufficient regeneration design (waste heat utilization regeneration, negative pressure regeneration technology).

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【Technical Parameters】

Item	Parameter	Item	Parameter
Product Category	Gas Dehydration Unit	Working Medium	Natural Gas, Oilfield Associated Gas, Shale Gas, Coalbed Methane (CBM), Biogas
Brand	Yipu	Place of Origin	Zhejiang, China
Working Flow Rate	500 ~ 20,000 Nm³/h	Core Components	Motor, Compressor, Adsorption Tower, Molecular Sieve, Filter, Booster, Cooler, Separator, Heater, Control Valve, and Control System
Core Advantages	Stable & Efficient Operation, Fully Automatic, Energy-Saving & Environmentally Friendly, Remote Maintenance	Application Industries	Natural Gas Exploration, Transportation & Liquefaction Industry; CNG Mother & Filling Stations; Special Gas Processing Industry
Mechanical Test Report	Available	Video Factory Acceptance Test	Available
Working Pressure	0.1 ~ 8.0 Mpa	Inlet Temperature	0 ~ 40℃ (50℃)
Inlet Pressure Dew Point*	0.6 Mpa / -13℃ / Saturated	Single Tower Continuous Operating Time	12 ~ 48 h
System Design Pressure	1.0 ~ 9.0 Mpa	Regeneration Time	≤ 8h (10h)
Adsorbent	3A/4A Molecular Sieve	Outlet Atmospheric Dew Point	≤ -55℃ ~ -70℃
Regeneration Cooling Method	Air-Cooled / Water-Cooled	Outlet Filtration Precision	≤ 3μm
Power Supply / Power	380V / 50Hz / 12.30 ~ 150kW	Protection Class	IP54 or IP65
Inlet & Outlet Pressure Drop	≤ 50 kPa	Motor Explosion-Proof Class	ExdⅡBT4
Noise Level	≤ 85 dB(A)	Regeneration Gas Heating Temperature	150 ~ 180℃
Overall Dimensions	L: (2500 ~ 8000) W: (1600 ~ 3000) H: (2350 ~ 2850)	Equipment Weight (kg)	2000 – 7000
		Inlet & Outlet Pipe Diameter	DN50 ~ DN200
Working Method	“Twin/Multi-Tower Alternating “”Adsorption-Regeneration””, Continuous Gas Supply”	Regeneration Method	“Closed/Open Loop, Pressure Reduction/Equal Pressure Regeneration / Heat Regeneration”
Control Method	“PLC Programmable Logic Controller, Digital Temperature Control Instrument, Automatic Fault Alarm”	Switching Method	Manual / Automatic
Packaging, Shipping & Quote Info
Sales Unit	Single Unit/Set	Individual Package Dimension	250020002850 (LWH)
Individual Product Gross Weight	3000 kg	Packaging Method	Wooden Case / Three-Proof Cloth (Waterproof, Mildewproof, Anti-Corrosion)
Quote	USD 28,000 ~ 100,000