Single Expander N2 LNG a liquefaction of natural gas based on Nitrogen Refrigerant cycle process. Nitrogen Refrigerant cycle technology uses a closed-loop nitrogen cycle to liquefy the feed gas.

As the demand for clean and affordable energy sources grows, the use of liquefied natural gas (LNG) as a fuel for power generation, transportation, and other industrial applications has increased. As a result, the market for LNG liquefaction plants has also seen significant growth in recent years, providing a cost-effective solution for LNG production.

Our company is a leading manufacturer of LNG liquefaction plants in China. With years of experience in designing and producing high-quality, efficient, and reliable LNG plants, we have become a trusted supplier to merchants across the globe.

In this product introduction, we will cover the key features and benefits of our LNG liquefaction plant, including its technology, energy efficiency, and environmental sustainability, as well as the services we offer to our customers.

Natural gas pre-treatment and purification system including:

1. Desulphurization decarbonization system
   Process: (MDEA+MEA) mixed amine method
   (MDEA+ activator) MDEA method
   Software: AMSIM, recognized by Chinese authorities
   Results: CO2＜50ppm, H2S＜4ppm
2. Dehydrating system
   Dehydration by using 4A molecular sieve
   Process by using three towers (or two towers): need less regenerative gas, so that it is more stable in operation
   Besides, molecular sieve dryer: designed in accordance with GB150 and tested by fatigue analysis
3. Mercury removal system: 10ng/nm3
   The sulfur-loaded activated carbon is used to adsorb mercury, while it can be used for 3-5 years. Since it is one tower or two towers, no need for regeneration. Moreover, a filter is set behind the mercury removal system.
4. Aromatic hydrocarbon and heavy hydrocarbon removal system
   From heavy hydrocarbon separator in the cold box, the heavy hydricarbon is separated and then adsorbed by scrubbing solution. After that, it goes out from tower bottom, gets separated, and at last gets stored in the storage tank.

Main processes/methods used for natural gas liquefaction by LNG purification and liquefaction plant:

1) expansion refrigeration circulation
Nitrogen methane expansion or nitrogen double expansion with freon as pretreatment, while is mainly used for small type liquefaction plant with a capacity of 300,000 m3/day or below;
2) single mixed refrigerant circulation
Divided into both single stage throttling and multi stages throttling.
Liquefaction capacity: 300-2,000,000 m3/day
3) multi-refrigerant circulation
Mixed refrigerant circulation with propane as pretreatment; while liquefaction capacity: 2,000-10,000,000 m3/day.
Besides, multi mixed refrigerant circulation with propane as pretreatment and mixed refrigerant circulation by nitrogen expansion for supercooling; while liquefaction capacity: 10,000,000 m3/day or above;

Furthermore, only an elite team of experts from cryogenic, instrument and electronics fields is able to plan a perfect LNG purification and liquefaction plant project. In addition, the ability of processing and manufacturing must be supportive. Especially, the key technology and equipment, such as liquefaction cold boxes and tanks, are all necessary to fulfill the project. We are proud to have a strong design team as well as a manufacture team. As a result, with our rich experience, we are able to design, manufacture and install complete sets of natural gas liquefaction plant for different customers. We will help you to build your exclusive LNG purification and liquefaction plant, which is both reliable and energy-saving.

Features & Benefits

Our skid-mounted LNG plant is an innovative and advanced LNG solution that provides a range of features, which includes:

1. Compact Design

Our plant is designed to be compact, which makes it perfect for smaller spaces. This also means it can be easily transported to different locations, making it flexible and convenient for the merchant.

2. High Efficiency

Our plant is designed to operate with high efficiency, which means that it can produce high-quality LNG with minimal energy wastage. This helps merchants save money on operational costs, and also reduces the overall carbon footprint, making it a more sustainable option for businesses and industries.

3. Scalable

Our plant is scalable, meaning that merchants can start with a smaller capacity and add more units as their business grows. This makes it a more flexible and cost-effective option compared to large-scale LNG plants.

4. Easy to Operate

Our skid-mounted LNG plant is designed to be user-friendly, with easy-to-use controls and a simple interface. This makes it easy to operate and manage, even for those who are unfamiliar with energy production.

5. High Reliability

Our plant is designed to be highly reliable, with a robust construction that ensures long-lasting performance. This helps reduce the risk of downtime or costly repairs, making it a more dependable option for merchants.

6. Cost-Effective

Our plant is designed to be cost-effective, both in terms of production costs and maintenance expenses. This helps merchants save money, while still producing high-quality LNG that meets the demands of their clients.

Services and Support

We understand that our customers need more than just a product – they need a reliable partner who can provide ongoing support and services. That’s why we offer a comprehensive range of services to ensure that our customers get the most out of our LNG plant, including:

• Installation, commissioning, and start-up services
• Technical training and support
• Maintenance and repairs services
• Spare part supply
• Remote monitoring and diagnostics

Our team of experienced and skilled engineers and technicians will work closely with our customers to ensure that their plant is operating at maximum efficiency and uptime.

Capacity
1 NG Incoming Capacity	30×104Nm3/d
2 NG Incoming Pressure	15 MPa
3 NG Incoming Temperature	0~30℃
4 Operation Flexibility	50~110%
5 Annually Operation Hours	8000 hours
6 Design Working life	15 years
LNG Specifications
1 Output	~216T/d； Converting to gas phase 30×104 Nm3/d
2 Temperature	-161℃
3 Storage Pressure	15KPa
4 Main Composition	CH4+CnHm: ≥99%；Other: ≤1%
Others
1 Venting Acid Gas	0.068×104Nm3/d
2 Outgoing Gas	N/A
3 BOG	0.569×104Nm3/d

Capacity
1 NG Incoming Capacity	60×104Nm3/d
2 NG Incoming Pressure	~4.5MPa
3 NG Incoming Temperature	0~30℃
4 Operation Flexibility	50~110%
5 Annually Operation Hours	8000 hours
6 Design Working life	20 years
LNG Specifications
1 Output	~430T/d； Converting to gas phase 60×104 Nm3/d
2 Temperature	-163.5℃
3 Storage Pressure	15KPa
4 Main Composition	C1: 97.62%; C2: 0.00%; CO2: 0.26%; N2: 1.80%; O2: 0.32%
Others
1 Venting Acid Gas	0.17×104Nm3/d (design value)
2 Outgoing Gas	N/A
3 BOG	~1.30×104Nm3/d (Cold box throttle flashing and storage tank self-evaporating BOG)

Capacity
1 NG Incoming Capacity	48×104Nm3/d
2 NG Incoming Pressure	2.5MPa
3 NG Incoming Temperature	50℃
4 Operation Flexibility	50~110%
5 Annually Operation Hours	8000 hours
6 Design Working life	20 years
LNG Specifications
1 Output	169t/d(518m3/d)
2 Temperature	-161℃
3 Storage Pressure	15KPa
4 Main Composition	CH4+CnHm: ≥99%; Other: ≤1%
Others(exhaust)
1 Flow	10700Nm3/h
2 Temp.	30℃
3 Pressure	~1.15MPa
4 Main Composition	H2: 29.43%; N2: 36%; CO: 34.39%.

Customizable And Scalable:

Our Skid-mounted Natural Gas Plant is designed to be customizable and scalable for our clients. It can be adapted to meet the specific needs of our clients and scaled up or down as required. This results in greater flexibility and enhanced control over your production processes.

Conclusion:

Our Skid-mounted Natural Gas Plant is an innovative solution for companies looking to increase their natural gas production capabilities. It is designed to be cost-effective, reliable, and customizable for our clients. Our skid-mounted design makes it an easy-to-transport solution that can be set up quickly and efficiently. With the latest technologies and smart control systems built into the plant, the Skid-mounted Natural Gas Plant is a reliable solution for natural gas processing that meets the needs of our clients. Contact us today to learn more and start increasing your production capabilities.

The general production process of LNG is to use natural gas as raw material (containing about 90% methane), after dehydration, removal of acid gas (H2S, CO2, etc.) and heavy hydrocarbons, it enters the refrigeration unit and cools to about -162 °C and becomes liquid (LNG). ) . Its volume is reduced to 1/625 of the gas phase. Liquefied Natural Gas (LNG) is stored in cryogenic LNG storage tanks. And supply to users through LNG cryogenic tank truck or transportation system.