Industrial Natural Gas Liquefication Plant
Introduction
Our company began to develop LNG plant as early as in 1980s. By now, we have provided about 30 sets of LNG separation plants. The technique includes expander process, MRC mixed cold process, etc.
Natural gas pre-treatment and purification system including:
1. Desulphurization decarbonization system
Process: (MDEA+MEA) mixed method
(MDEA+ activator) MDEA method
Software: AMSIM which is 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): less regenerative gas is needed; more stable in operation
Molecular sieve dryer: it is 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, which can be used for 3-5 years. It is one tower or two towers, no need for regeneration. 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 plant:
1) expansion refrigeration circulation
Nitrogen methane expansion or nitrogen double expansion with freon as pretreatment;
Mainly used for small type liquefaction plant with a capacity of 300,000 m3/day or below;
2) single mixed refrigerant circulation
It is divided into 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; liquefaction capacity: 2,000-10,000,000 m3/day.
Multi mixed refrigerant circulation with propane as pretreatment and mixed refrigerant circulation by nitrogen expansion for super cooling; liquefaction capacity: 10,000,000 m3/day or above;
REFERENCE LIST OF NATURAL GAS LIQUEFACTION PLANTS
| SERIAL NO |
SCALE |
LIQUEFACTION PROCESS |
CUSTOMER |
| 1 |
100 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - TOTAL PACKAGE |
TWO-LEVEL NITROGEN EXPANSION REFRIGERATING CYCLE LIQUEFIED PROCESS |
CHENGDU YONGLONG INDUSTRIAL |
| 2 |
200 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - TOTAL PACKAGE |
TWO-LEVEL NITROGEN EXPANSION REFRIGERATING CYCLE + DENITRIFICATION LIQUEFIED PROCESS |
EXPORT TO POLAND |
| 3 |
150 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - TOTAL PACKAGE |
MIXING WORKING MEDIUM WITH PRECOOLING N2-CH4 EXPANSION REFRIGERATION LIQUEFIED PROCESS |
ORDOS, INNER MONGOLIA |
| 4 |
300 000 NM3/D × 2 NATURAL GAS LIQUEFACTION PLANTS - TOTAL PACKAGE |
MIXING WORKING MEDIUM WITH PRECOOLING N2-CH4 EXPANSION REFRIGERATION LIQUEFIED PROCESS |
NINGXIA YINCHUAN |
| 5 |
2 400 000 TONS/YR, 3 400 000 TONS/YR NATURAL GAS LIQUEFACTION TECHNOLOGY R&D INCLUDED |
PROPANE PRECOOLING MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
CNOOC NORTH PARS |
| 6 |
TWO SETS 600 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
ORDOS, INNER MONGOLIA |
| 7 |
2 000 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
ORDOS, INNER MONGOLIA |
| 8 |
1 000 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
ALXA, INNER MONGOLIA |
| 9 |
1 000 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - EPC TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
ZHANGJIAKOU HEBEI |
| 10 |
300 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
XI'AN SHANXI |
| 11 |
270 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - TOTAL PACKAGE |
PRESSURE DIFFERENTIAL EXPANSION REFRIGERATION LIQUEFIED PROCESS |
WUHAN |
| 12 |
500 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
HEBEI RENGQIU |
| 13 |
600 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - EPC TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
HENAN JIAOZUO |
| 14 |
500 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - EPC TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
NINGXIA YANCHI |
| 15 |
500 000 NM3/D COKE OVEN GAS TO PRODUCE LIQUEFIED NATURAL GAS PLANT - EPC TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
HENAN ANYANG |
| 16 |
500 000 NM3/D COALBED METHANE TO PRODUCE LIQUEFIED NATURAL GAS PLANT - EPC TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
SHANXI QINGSHUI |
| 17 |
1 000 000 NM3/D NATURAL GAS LIQUEFACTION PLANT - EPC TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
SHANXI YULIN |
| 18 |
500 000 NM3/D PURGE GAS TO PRODUCE LIQUEFIED NATURAL GAS PLANT -TOTAL PACKAGE |
MIXED REFRIGERANT REFRIGERATION LIQUEFIED PROCESS |
HEILONGJIANGSHUANGYASHAN |
Products Photos
Shipping
WHAT WE CAN SUPPLY?
We specialize in producing air separation plants, CO2 recovery plants, cryogenic liquid storage tanks, ISO tanks, semi-trailer tankers, vaporizers, gas filling stations, cylinders and dewars, dry ice machines, compressors and cryogenic pumps etc.
Our Company
Hangzhou Chuankong General Equipment Co.,Ltd. is a wholly owned subsidiary of Sichuan Air Separation Plant Group Company-the second largest gas equipment producer in China.
In the gas equipment field, we are proficient in both design and manufacture, enjoying a good reputation worldwide. By our consistent efforts, we turned the invisible air into visible brilliance. With 40 years of experience, we can provide customers with a complete range of products and the most professional services. Taking advantage of the group company structure, we have an in-depth and comprehensive understanding of market. Customers can get all they need at one-stop purchase.
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