The liquefaction unit is a complete set of equipment. After the complete set, the stable and efficient operation of the unit must be ensured.The principle of equipment design, manufacturing and finalized product selection is based on domestic, mature technology and advanced performance. The supplied equipment shall be designed as per unit skid.In addition to the main equipment, spare parts normally used for one year, special tools for screw compressor, instruments and valves, each skid equipment also includes paired flanges (with gaskets and fasteners) and anchor bolts of all connecting pipes on the skid. The electrical interfaces on the skid are equipped with terminal boxes, and integrated technology is adopted to minimize the number of connecting cables. The skid is equipped with instrument gas main pipe, and the internal instrument gas pipe connection has been completed during skid manufacturing. The basic technical data of process equipment described in this chapter shall be subject to the final design. MR cycle refrigeration unit S/N Equipment name Qty Manufacturer Other instructions 1. Refrigerant integration skid 1.1 High temperature refrigerant separator 1 Sichuan Jinxing 1.2 Cryogenic refrigerant separator 1 Sichuan Jinxing 1.3 Ethylene vaporizer 2 200Nm3/h 1.4 Refrigerant dryer 2 Sichuan Jinxing 1.5 Refrigerant recovery tank 2 Sichuan Jinxing 2. Refrigerant compressor unit 2.1 High refrigerant compressor 1 Screw type 2.2 Cryogenic refrigerant compressor 1 Screw type  Product storage, loading and bog Recovery & sewage storage unit S/N Equipment name QTY Manufacturer Other instructions 1. LNG storage and loading system 1.1 LNG loading pump (pipeline pump) 2 Made in China 1.2 LNG loading and unloading arm 2 2. Bog recovery unit 2.1 Bog air temperature reheater 1 2.2 Bog water bath electric heater 1 2.3 Bog buffer tank 1 Sichuan Jinxing 2.4 Bog compressor 2 One for use and one for standby 3. Heavy hydrocarbon storage and loading unit 3.1 Sewage tank (10m3) 1 Excluding sewage loading system Utility system S/N Equipment name QTY manufacturer Other instructions 1. PSA nitrogen generation skid Note: the dried air is used as instrument air. 2. Heat transfer oil furnace 2.1 Heat conducting oil furnace (double temperature type) 1set Heat output 1400kW 3. Desalted water unit 3.1 Desalted water unit 1set 0.5t/h 4 Closed cooling tower 1set Including circulating water pump  Manual valves and filters S/N Equipment name QTY Other instructions Manual valves and filters 1 Manual low temperature valve 1set Empty valve 2 Manual medium temperature valve 1set Founder valve, globegroup, Zhejiang Shuangda 3 Safety valve 1 Zhejiang Yongyi, Chengkong valve or equivalent 4 Pipe filter 1set Founder valve, globegroup, Zhejiang Shuangda Instrument electrical control list Instrument supply list S/N  Equipment name  Qty Manufacturer  Other instructions DCS system 1 DCS system 1set Zhejiang zhongkong / Hollysys SIS system 2 SIS system 1set Zhejiang zhongkong / Hollysys Analysis system 3.1 Trace CO2 content analyzer 1 3.2 Micro moisture analyzer 1 3.3 Refrigerant chromatographic analyzer 1 3.4 analyzer house 1set Xi’an Taige, Beicheng, etc Manual analysis system 4.1 Demineralized water quality analysis 1set 4.2 Desalted water quality analysis 1set 4.3 MDEA solution analysis 1set Supply list of electric control system S/N Name Material and specification QTY Manufacturer Remarks 1 Electric control system 1set Excluding high voltage distribution