Product Introduction

The Compressed Natural Gas (CNG) Plant is an integrated system designed for natural gas treatment, compression, storage, and distribution.

Key Technical Data

Parameter	Specification
Plant Capacity	5,000–500,000 Nm³/day
Feed Gas Pressure	0.1–1.0 MPa
Operating Pressure	20–25 MPaG
Methane Purity	CH₄ ≥95% (Vol.)
Water Content	<10 ppm
Hydrogen Sulfide (H₂S)	<20 mg/Nm³
Carbon Dioxide (CO₂)	Project-specific
Nitrogen (N₂)	Project-specific
Compressor Type	Multi-stage Reciprocating Compressor or Screw Compressor
Compression Stage Pressure	4–6 MPa per Stage
Storage Type	High-Pressure Cylinders or Storage Tanks
Storage Pressure	20–25 MPa
Refueling Time	3–5 Minutes per Vehicle
Control System	PLC or DCS-Based Automatic Control
Safety Protection	Pressure Relief Valves, Safety Valves, Pressure Gauges
Storage Vessel Design Life	≥20 Years
Average MTBF	>8,000 Hours
Energy Saving	5–8% Lower Energy Consumption than Conventional Designs
Carbon Emission Reduction	Approximately 20–30% Lower than Gasoline or Diesel
Ambient Temperature	Customized According to Project Location
Installation Type	Skid-Mounted or Modular Design
Operation Mode	Continuous Automatic Operation

Raw Natural Gas

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Filter Separator (Liquid & solid removal)

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Gas Purification (Desulfurization & Dehydration Units)

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Multi-Stage Compression (with Intercooling between stages)

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High-Pressure CNG Storage (Cylinders / Cascades)

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CNG Distribution Terminal

├─ Vehicle Fueling Dispensers

└─ Industrial Gas Supply Interface

Modular plant layout integrating gas treatment, compression, storage, and dispensing sections.
Multi-stage compressor package mounted on a welded structural base frame.
Intercooler system installed between compression stages.
PLC or DCS-based control system with centralized operation and monitoring functions.
Instrumentation package for continuous pressure, temperature, and equipment status monitoring.
Automatic shutdown logic configured for abnormal operating conditions.
Pressure relief devices installed throughout critical high-pressure sections.
High-pressure piping fabricated under qualified welding procedures.
Expandable plant architecture allowing future capacity expansion

Engineering design focuses on:

ISO9001 Quality Management System
ISO14001 Environmental Management System
ASME BPVC Section VIII compliance for pressure vessels
Third-party inspection of critical components
Certified welding procedures with ultrasonic (UT) and penetrant (PT) testing
72-hour continuous performance testing before delivery
Compressor systems with overload protection and real-time temperature monitoring
Storage vessels designed for ≥20 years service life

Scheduled compressor oil replacement and filter cleaning
Instrument calibration and pressure system inspections
24/7 technical support, initial response within 8 hours
Remote troubleshooting for operational adjustments within 24 hours
Field service support domestically within 48 hours and internationally within 72 hours

Q: What is the methane purity of the produced CNG?

A: Methane content is not less than 95% by volume.

Q: What operating pressure does the plant use?

A: The system operates at 20–25 MPa, including compression, storage, and dispensing sections.

Q: Can the plant supply both vehicle fueling stations and industrial users?

A: Yes. The distribution system can be configured for vehicle fueling, industrial gas supply, or both.

Q: What compressor types are available?

A: Multi-stage reciprocating compressors and screw compressors are available depending on project requirements.

Q: What capacity range is available?

A: Standard plant capacities range from 5,000 Nm³/day to 500,000 Nm³/day.