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Natural Gas Purification and Liquefaction Plant
Liquefied natural gas (LNG) is widely used as clean energy. Liquefaction of gases is a physical conversion of a gas into a liquid state. Main reason for such is to reduce its volume in order to transport in liquid state to customers' site. GreenFir owns a variety of self-developed natural gas liquefaction technologies, such as mixed refrigerant cycle (MRC) and N2 cycle. And GreenFir develops optimized single-stage mixed refrigeration (SMR), C3 pre-cooled mixed refrigeration (C3MR) and double mixed refrigeration (DMR) considering different cooling principles and working conditions. LNG plants are typically sized to produce from 20 to 730 tons per day of LNG.
LNG Liquefaction Plant
Liquefied natural gas(LNG) is a liquid hydrocarbon mixture dominated by methane. Natural gas liquefaction is a low-temperature cooling process. After purification treatment, the raw natural gas enters the heat exchanger for low-temperature cooling and condensation. When cooled to a certain temperature (related to pressure), it becomes liquid, which is liquefied natural gas (LNG). The volume of liquefied natural gas(LNG) is about 1/600 of its gas volume, which is conducive to transportation and storage.
Design Scale (Nm3/d) | 3x104 | 6x104 | 10x104 | 15x104 | 20x104 | 30x104 | 50x104 | 100x104 | 200x104 |
| LNG Output (Nm3/d) | ~2.8x104 | ~5.7x104 | ~9.5x104 | ~14.2x104 | ~19x104 | ~29x104 | ~48.5x104 | ~97x104 | ~195x104 |
| Acid Removal | MDEA | MDEA | MDEA | MDEA | MDEA | MDEA | MDEA | MDEA | MDEA |
Lique faction Process | MRC / Nitrogen expansion refrigeration | MRC / Nitrogen expansion refrigeration | MRC/ DMR/ C3MR | MRC/ DMR/ C3MR | MRC/ DMR/ C3MR | SMRC | SMRC/ C3MR | SMRC/ C3MR | SMRC/ C3MR |
| Design Life | 20 years | 20 years | 20 years | 20 years | 20 years | 20 years | 20 years | 20 years | 20 years |
| Operating Flexibility | 50~110% | 50~110% | 50~110% | 50~110% | 50~110% | 50~110% | 50~110% | 50~110% | 50~110% |
| Continuous Running Time | 8000h | 8000h | 8000h | 8000h | 8000h | 8000h | 8000h | 8000h | 8000h |
| LNG output is related to feed gas composition and pressure. It can be customized according to customer needs. | |||||||||
GreenFir is a company dedicated to the research and development of multi-component gas separation, purification and liquefaction, as well as the design and manufacture of related core equipment. Lansun has a design center located in Jinyang, a business center located in Chengdu, and two manufacturing bases located in Jintang and Ziyang, with a total area of 27,000 square meters. The company adheres to the values of "insisting on integrity, openness to learning, courageous and enterprising, and customer achievement", and provides partners with stable, safe and reliable technologies and products with high energy efficiency. Our business covers modularization/skid-block design, manufacturing, installation, commissioning, installation and commissioning of air separation plants (oxygen, nitrogen, argon and rare gas extraction), air liquefaction plants, natural gas purification (deacidification and dehydration), liquefaction and treatment plants, small wellhead gas recovery plants, associated gas recovery plants, compressed natural gas (CNG) refueling stations, liquefied natural gas (LNG) refueling stations, LNG refueling stations, hydrogen plants, hydrogen liquefaction plants, and hydrogen refueling plants. Design, manufacture, installation, commissioning, operation and maintenance as well as general contracting and intentional project investment. Countries/Regions: China, Iran, Indonesia, Nigeria, Turkey, Kazakhstan, Pakistan, Uzbekistan, Russia, etc.





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