4MW-150/30 Large Scale Carbon Dioxide Compressor 150m3/Min 3.0MPa 2000kw 4-Row 2-Stage for Urea and Chemical Plants

Product Description

4MW-150/30 Large Scale Carbon Dioxide Compressor 150m3/min 3.0MPa 2000kW 4-Row 2-Stage for Urea and Chemical Plants

Product Description

No.	Model	Pattern	Capacity (m³/min)	Pressure (MPa)	Size L x W x H (mm)	Weight (t)	Power (kW)	Voltage (V)
1	ZW-2/5	2-row 2-stage	2	0.50	1800 x 1296 x 1910	1.50	22	380
2	ZW-3/5	2-row 2-stage	3	0.50	1900 x 1296 x 1910	1.80	30	380
3	ZW-5/5	2-row 2-stage	5	0.50	2250 x 1296 x 2200	2.00	55	380
4	LW-10/5	2-row 2-stage	10	0.50	2340 x 910 x 2070	1.80	75	380
5	LW-20/5	2-row 2-stage	20	0.50	2732 x 1550 x 2432	3.00	132	380
6	ZW-3/7	2-row 2-stage	3	0.70	720 x 763 x 1274	0.80	22	380
7	ZW-5/7	2-row 2-stage	5	0.70	2250 x 1296 x 2200	2.00	37	380
8	LW-12/7	2-row 2-stage	12	0.70	2340 x 910 x 2070	1.80	75	380
9	LW-20/7	2-row 2-stage	20	0.70	2732 x 1550 x 2432	3.00	160	380
10	DW-20/40	2-row 4-stage	20	4.00	5200 x 2800 x 2600	14.00	400	380/6k or 10k
11	LW-8/10	2-row 3-stage	8	1.00	2340 x 910 x 2070	1.80	75	380
12	LW-20/10	2-row 3-stage	20	1.00	2732 x 1550 x 2432	3.00	160	380
13	LW-30/10	2-row 3-stage	30	1.00	2890 x 1600 x 2173	4.12	250	380/6k or 10k
14	LW-8/15	2-row 3-stage	8	1.50	2340 x 910 x 2070	1.80	90	380
15	LW-20/15	2-row 3-stage	20	1.50	2732 x 1550 x 2432	3.00	200	380/6k or 10k
16	LW-15/20	2-row 3-stage	15	2.00	2895 x 1600 x 2173	4.12	200	380/6k or 10k
17	LW-20/20	2-row 3-stage	20	2.00	2895 x 1600 x 2173	4.20	250	380/6k or 10k
18	LW-10/30	2-row 3-stage	10	3.00	3127 x 1550 x 2543	3.70	132	380
19	LW-20/30	2-row 3-stage	20	3.00	3500 x 2600 x 1850	6.00	250	380/6k or 10k
20	LW-30/30	2-row 3-stage	30	3.00	3065 x 1685 x 2440	6.60	350	380/6k or 10k
21	DW-50/30	2-row 4-stage	50	3.00	6585 x 3595 x 2095	13.00	630	6k or 10k
22	DW-60/30	2-row 4-stage	60	3.00	8500 x 2440 x 3020	17.00	710	6k or 10k
23	DW-80/30	2-row 4-stage	80	3.00	8500 x 2440 x 3020	17.00	850	6k or 10k
24	4MW-100/30	4-row 4-stage	100	3.00	6800 x 4000 x 3200	26.50	1200	6k or 10k
25	4MW-150/30	4-row 2-stage	150	3.00	6800 x 4500 x 3200	30.00	2000	6k or 10k
26	LW-5/50	2-row 4-stage	5	5.00	2190 x 910 x 2220	2.00	90	380
27	LW-10/50	2-row 4-stage	10	5.00	2340 x 910 x 2070	1.80	160	380
28	LW-5/90	2-row 4-stage	5	9.00	2190 x 910 x 2220	2.00	110	380
29	LW-10/90	2-row 4-stage	10	9.00	2340 x 910 x 2070	1.80	200	380/6k or 10k

The 4MW-150/30 is a large-scale reciprocating piston carbon dioxide compressor delivering 150 m3/min at 3.0 MPa, driven by a 2000 kW motor on 6kV or 10kV medium-voltage supply. The 4-row 2-stage horizontally opposed configuration provides inherent dynamic balance across all four cylinder rows, minimising foundation vibration at the very high power levels required for this output and reducing structural requirements for the compressor house. At this scale, the 4MW-150/30 is the primary CO2 compression machine for large urea synthesis plants, carbon capture and utilisation facilities, and large-scale chemical synthesis operations requiring carbon dioxide as a process feed gas at sustained high flow rates.

Carbon dioxide compression at the 4MW-150/30 scale presents specific design challenges that distinguish it from air or nitrogen compression at equivalent flow rates. CO2 has a higher molecular weight than air, producing higher gas densities at the same pressure and temperature conditions, which affects valve design and timing. CO2 also absorbs into lubricating oil under pressure, reducing oil viscosity and film strength - requiring a CO2-compatible synthetic lubricant rather than standard mineral oil in the cylinder lubrication system. The 4MW-150/30 uses a CO2-service synthetic lubricant as standard, verified for compatibility with the CO2 gas stream and for adequate viscosity retention at the operating temperatures of both compression stages.

The 4-row frame of the 4MW-150/30 distributes the 2000 kW drive power across four cylinder rows, reducing the mechanical load per cylinder and per piston rod compared to a 2-row design at the same output. This load distribution extends the service life of piston rings, rod packings, and valve components, and reduces the bearing loads that determine the main overhaul interval. Water-cooled interstage and aftercoolers maintain stage discharge temperatures within design limits, managing the higher heat of compression of CO2 relative to air and protecting downstream CO2 process equipment.

The control system for the 4MW-150/30 includes suction and discharge pressure transmitters, interstage temperature sensors, lubricating oil pressure monitoring with automatic shutdown, CO2 detector interface relay for area monitoring integration, PLC control panel with local HMI and remote SCADA interface via Modbus/RS485, and automatic load-unload cycling for capacity control. The CO2 detector interface automatically shuts down the compressor and initiates alarm if CO2 concentration in the compressor room exceeds the safe working level, providing personnel protection independent of the main process control system.

 

 

Application

Urea synthesis plants: Urea production requires CO2 as a primary raw material, fed to the synthesis reactor at pressures of 14 to 20 MPa after multi-stage compression. The 4MW-150/30 at 3.0 MPa serves as the first or intermediate compression stage in a urea plant CO2 compression train, handling the full CO2 output of a synthesis gas production unit feeding a urea plant producing 1,500 to 3,000 tonnes of urea per day.

Carbon capture utilisation and storage: Industrial carbon capture projects capturing CO2 from flue gas or process streams for utilisation or geological storage require large-scale CO2 compression. The 4MW-150/30 covers the primary compression requirement of a carbon capture facility processing 500 to 1,000 tonnes of CO2 per day, raising captured CO2 from near-atmospheric pressure to intermediate pipeline pressure.

Methanol synthesis: CO2 hydrogenation to methanol requires CO2 feed at reactor pressure of 5 to 10 MPa. The 4MW-150/30 serves as the first-stage compressor in a CO2-to-methanol synthesis loop, handling the CO2 feed for a methanol plant producing 500 to 1,000 tonnes per day from green hydrogen and captured CO2.

Enhanced oil recovery: CO2 injection for enhanced oil recovery in depleted oil fields requires large volumes of CO2 compressed to reservoir injection pressure of 10 to 25 MPa. The 4MW-150/30 serves as the initial compression stage, raising CO2 from pipeline or capture pressure to the inlet pressure of the high-pressure injection compressor.

Beverage carbonation: Large-scale beverage manufacturers and CO2 distributors supplying food-grade CO2 for carbonated drink production require high-purity CO2 compression at sustained flow rates. The 4MW-150/30 covers the compression requirement of a CO2 liquefaction and purification plant supplying a major beverage manufacturing region.

Dry ice production: Industrial dry ice manufacturers producing CO2 snow and dry ice blocks for food preservation, cold chain logistics, and industrial cleaning require large-scale CO2 compression as the primary production step. The 4MW-150/30 provides the compression capacity for a large dry ice production facility producing 100 to 200 tonnes of dry ice per day.

Comparison with Similar Products:

Several manufacturers supply large CO2 compressors in the 100 to 200 m3/min class for urea plant, carbon capture, and chemical synthesis applications. Reciprocating compressor designs for large-scale CO2 service are produced by specialist process compressor manufacturers serving the fertiliser, petrochemical, and carbon capture industries. The 4MW-150/30 provides equivalent output and 4-row 2-stage design at significantly lower capital cost, with CO2-service synthetic lubricant as standard equipment, 6kV/10kV motor for direct MV connection, CO2 detector interface as standard safety equipment, full process documentation package, and ISO 9001 certified manufacturing quality with direct factory technical support and spare parts.

Company Profile

EVER POWER is a national second-level enterprise and a provincial advanced enterprise. Xinlan Company currently has over 350 employees, total assets of 300 million RMB, and more than 600 sets of various production and processing equipment. The company has specialized production plants including a foundry, machining plant, pressure vessel plant, and assembly plant, as well as functional departments such as a compressor research institute, sales department, marketing department, customer service office, finance department, manufacturing department, supply department, process equipment department, and general office.

EVER POWER produces nearly a thousand varieties of compressors, which are now widely used in industries such as petrochemicals, air separation and cryogenics, energy conservation and environmental protection, coal mining, food fermentation, and glass building materials. Its products enjoy a high reputation domestically and are exported to many countries.

EVER POWER focuses on the design and manufacturing of reciprocating compressors and Class I, II, and III pressure vessels. Its compressor products are currently divided into two main categories: reciprocating and screw compressors. The reciprocating compressors currently include numerous series such as M, H, D, L, P, and Z. Our products cover a single-unit pressure range of 0.1~600 Nm³/min; a pressure range of 0.1~32.0 MPa; a piston force of 1.5~50T; and a drive power of 5.5~5000 KW. Compressible media include: air, gas, oxygen, carbon dioxide, carbon monoxide, natural gas, methane, coke oven (blast furnace) gas, coalbed methane, biogas, acetylene, chloromethane, vinyl chloride, mixed gases, liquefied petroleum gas, petroleum-associated gases, and various flammable and explosive raw material gases. Our company aims to become one of the largest and most comprehensive manufacturers of large and medium-sized reciprocating process compressors in China.

EVER POWER offers customized compressor system solutions for different scales, based on the design concepts of equipment integration, energy-saving operation, intelligent control, and convenient maintenance. Integrated skid-mounted power systems can be provided according to customer needs, with optional soft start, PLC control, frequency converter systems, and remote and wireless monitoring systems. We can provide designs for special working conditions and environments such as outdoor, low temperature, high altitude, and marine environments, as well as supporting power designs such as electric motors, internal combustion engines, and steam turbines.