Centrifugal Compressors with Vertically Split Casing

SPECIFICATIONS

DESIGN

REFERENCES

TECHNICAL DATA

Capacity: up to 900 m³/min (up to 220 000 nm³/h)
Discharge pressure: up to 45 MPa (458,8 kgf/cm²)
Drive power: up to 32 000 kW

COMPRESSIBLE GASES

APPLICATION

Compressor system
4GC2-218/3-18

Depending on required compression degree the centrifugal compressors with vertically split casing may have one or more compression stages, wherein each stage consists of an aerodynamic unit (“inner casing"), placed inside a steel cylinder. The aerodynamic unit, in its turn, consists of a rotor and a stationary flow path in form of horizontally split diaphragms.

The basic models can be modified in accordance with the customer requirements.

DESIGN FEATURES & ADVANTAGES

A vertically split casing allows fabrication of high-pressure compressors for explosive gases
Flow path with high-performance compression stages
Special locks securing solid forged caps that cover the ends of the steel cylinder, provide quick and easy maintenance and repair of the compressor
Dry gas seals to provide complete purity of compressed gas and prevent its leakage into compressor room
Active magnetic bearings for the rotor suspension
Intercooling of compressed gas between sections in the two-stage casings
Automation system based on microprocessor controller
Many years of operation in real conditions have proven high reliability and efficiency of the construction components

INSTALLATION

Version for compressor stations (placement inside the permanent building)
Hangar version with all engineering systems (easily construction buildings)
Block-container version with all engineering systems
Marine version including offshore platforms
Version for outdoor installation in open air areas

Construction Materials

Ductile cast iron
Carbon steel
Stainless steel
Titanium

Drive Types

Electric motor
Gas turbine
Steam turbine

SCOPE OF SUPPLY

Compression system (compressor, multiplier, base frame, couplings, piping)
Electric motor (gas turbine drive, gas piston drive, steam turbine)
Lubricating oil systems and seals
Anti-surge protection system
Automatic control system

BASE 2

Model	Compressible gas	Capacity m³/min (Nm³/h)	Pressure MPa (bar)		Rotation speed, rpm	Drive		Dimensions, m	Weight including el. motor, automation, piping, spare parts, kg	Application
Model	Compressible gas	Capacity m³/min (Nm³/h)	Suction	Discharge	Rotation speed, rpm	Type	Power, kW	Dimensions, m		Application
2GC2-41/58-79	Hydrogen-bearing gas	41 (142000)	5.7 (58)	7.75 (79)	13020	El. motor	2500	6.20х4.80х3.40	38000	Oil refining. Hydrotreatment units
2GC2-47/35-44М	Hydrogen-bearing gas	46 (96000)	3.4 (34.7)	4.24 (43.3)	14750	El. motor	2000	6.00х6.50х3.50	44000	Gas processing. Gasoline fraction hydrotreatment unit
2GC2-23/21-37	Natural gas	23 (26500)	2.06 (21)	3.63 (37)	13902	El. motor	1250	6.00х2.50х2.50	19000	Oil refining. Hydrocracking units
2GC2-16/27-37	Hydrogen-bearing gas	16 (26000)	2.64 (27)	3.62 (37)	12700	El. motor	800	6.20х4.80х3.40	20000	Petroleum chemistry
2GC2-14/25-40	Natural gas	14 (20000)	2.32 (23.6)	3.92 (40)	13165	El. motor	800	5.23х2.41х2.00	20000	Petroleum chemistry. Catalytic cracking units

BASE 3

Model	Compressible gas	Capacity m³/min (nm³/h)	Pressure MPa (bar)		Rotation speed, rpm	Drive		Dimensions, m	Weight including el. motor, automation, piping, spare parts, kg	Application
Model	Compressible gas	Capacity m³/min (nm³/h)	Suction	Discharge	Rotation speed, rpm	Type	Power, kW	Dimensions, m		Application
3GC2-83/25-48	Associated petroleum gas	83 (125000)	2.45 (25)	4.7 (48)	11100	El. motor	4000	9.20х7.40х4.40	58000	Gas processing
3GC2-61/41-59	Hydrogen-bearing gas	61 (150000)	4.0 (41)	5.78 (59)	13200	El. motor	4000	7.50х6.50х3.60	32000	Petroleum chemistry. Hydrotreatment units
3GC2-36/132-168	Hydrogen-bearing gas	36 (290000)	13 (132.6)	16.47 (167.9)	11619	El. motor	4000	10.20х8.10х6.98	60000	Oil refining. Hydrocracking units
3GC2-75/71-88	Hydrogen-bearing gas	75 (320000)	7.1 (71)	8.8 (88)	11938	Steam turbine	3500	12.60х10.00х8.50	78400	Petroleum chemistry. Gas circulation system
3GC2-123/4-25	Natural gas	123 (30000)	0.4 (4)	2.45 (25)	14674	El. motor	3150	7.70х7.80х4.50	39500	Thermal energy. Supply of compressed gas to gas turbine energy unit
3GC2-112/5-23-К	Natural gas	112 (34000)	0.5 (5.11)	2.3 (23.47)	13116	El. motor	3150	10.70х8.45х5.70	46700	Thermal energy. Supply of compressed gas to gas turbine energy unit
32GC2-63/4.5-41	Hydrogen-bearing gas	62 (16500)	0.44 (4.5)	4.1 (41)	13557	El. motor	3150	8.30х2.30х2.36	46000	Oil refining. Hydrogen production
3GC2-174/1.2-17	Wet (sour) associated petroleum gas	174 (12500)	0.12 (1.2)	1.7 (17)	9000÷12150	El. motor	2500	6.50х6.60х3.80	29000	Oil refining
32GC-115/2-38-К	Associated petroleum gas with hydrogen sulphide	115 (14000)	0.2 (2)	3.73 (38)	13500	El. motor	2500	15.00х12.00х7.00	120000	Gas processing
3GC2-84/11-26-К	Natural gas	84 (65000)	1.0÷1.2 (11.2÷13.5)	2.5 (26.53)	13006	El. motor	2500	9.50х7.50х4.50**	75000	Thermal energy. Supply of compressed gas to gas turbine of combined cycle power unit
32GC2-52/2-29 М3.1	Natural gas	52 (6000)	0.2 (2.0)	2.84 (29)	14107	El. motor	2500	10.50х4.50х3.50	56000	Offshore production platforms. Supply of compressed gas to gas turbine
3GC2-46/6-35 М3.1	Natural gas	46 (16500)	0.6 (6.0)	3.43 (35)	13911	El. motor	2000	7.30х3.65х3.17	27000	Offshore production platforms
3GC2-62/4-26	Associated petroleum gas	62 (15000)	0.39 (4)	2.53 (26)	13051	El. motor	1600	8.00х2.20х1.95	42000	Oil refining
3GC2-40/9.7-29-К	Natural gas	40 (23300)	0.95 (9.7)	2.9 (29)	12136	El. motor	1600	9.50х7.50х4.50**	60000	Thermal energy. Supply of compressed gas to gas turbine power unit
3GC2-38/9.5-28 К	Natural gas	37 (21000)	0.93 (9.5)	2.74 (28)	11544	El. motor	1600	12.00х9.00х4.50	6000	Thermal energy. Supply of compressed gas to combustor in gas turbine power unit
3GC-108/0.92-7	Dry chlorine-gas	108 (6000)	0.09 (0.92)	0.68 (7)	12253	El. motor	630	4.30х2.30х1.50	15600	Chemical industry. Production of chlorine and caustic soda

** dimensions without block-container CA

BASE 4

Model	Compressible gas	Capacity m³/min (nm³/h)	Pressure MPa (bar)		Rotation speed, rpm	Drive		Dimensions, m	Weight including el. motor, automation, piping, spare parts, kg	Application
Model	Compressible gas	Capacity m³/min (nm³/h)	Suction	Discharge	Rotation speed, rpm	Type	Power, KW	Dimensions, m		Application
433GC2-143/25-321PМ	Nitrogen-hydrogen mixture	143 (215000)	2,45 (25)	31,5 (321)	11268	Steam turbine	32000	88,00х34,00х21,20	790000	Chemical industry. Ammonia synthesis unit
4GC2-109/18-76	Dry stripped APG	120 (120000)	1,62 (16,5)	7,45 (76)	11419	El. motor	12500	12,42х6,85х4,35	58600	Gas processing. Supply of compressed gas to main pipeline
4GC2-184/13,5-76	Dry stripped gas	190 (155000)	1,32 (13,5)	7,45 (76)	10363	El. motor	12000	2,25х1,41х1,63*	14050	Gas processing
4GC2-184/13,5-76 М1	Feed APG	195 (155000)	1,27 (12,95)	7,45 (76)	10363	El. motor	12000	2,25х1,41х1,63*	14050	Gas processing
4GC2-124/14-79 GTU	Dry stripped gas	124 (100000)	1,36 (14)	7,69 (9)	8059	Gas turbine plant (AI-336-2-8)	8000	21,80х20,40х33,00	240000	Gas processing
4GC2-318/2,4-29	Fuel gas	318 (45000)	0,23 (2,42)	2,83 (28,86)	10561	El. motor	6300	9,23х9,04х5,18	68000	Thermal energy. Supply of compressed gas to combustion chambers of gas turbines
4GC2-230/24-31	Hydrogen-bearing gas	242 (350000)	2,33 (23,8)	3,03 (31)	10092	El. motor	6300	10,01х9,35х6,88	63500	Gas processing. Catalytic reforming unit
4GC2-130/6-65	Natural gas	130 (45000)	0,56 (5,7)	6,48 (66)	8796	El. motor	6300	9,23х7,10х5,89	75450	Gas processing. Liquid hydrocarbon stabilization unit
43GC-6,3/110	APG	100 (35000)	0,57 (5,7)	11,2 (112)	9480	El. motor	6300	36,00х12,00х11,00	158600	Upstream. As a part of compressor systems for gas-lift oil extraction
43GC-6,3/90	APG	100 (30000)	0,48 (4,9)	8,82 (90)	9480	El. motor	6300	36,00х12,00х11,00	158600	Upstream. As a part of compressor systems for gas-lift oil extraction
4GC2-70/17-62 GTU	Dry stripped gas	70 (70000)	1,7 (17,35)	6,17 (62,9)	8478	Gas turbine (GTU-6PG)	6000	29,00х21,00х20,00	220000	Gas processing. APG utilization
4GC2-218/3-18	Low-pressure waste gas	218 (45000)	0,33 (3,36)	1,8 (18,36)	8573	El. motor	4000	6,80х6,40х3,80	38000	Gas processing. Gas treatment system
4GC2-87/5-35-	Natural gas	87 (36000)	0,5 (5,11÷7,15)	3,5 (36,22)	10541	El. motor	3150	11,00х8,50х6,00	90000	Thermal energy. Gas compression and supply to gas turbine being a part of CCGT
44GC2-49/24-46	Hydrogen	49 (70000)	2,35 (24)	4,5 (46)	10731	El. motor	3150	12,50х8,20х7,05	59800	Oil refining. Performance support of hydrogen production plant

* Dimensions of compressor system only

BASE 5

Model	Compressible gas	Capacity m³/min (nm³/h)	Pressure MPa (bar)		Rotation speed, rpm	Drive		Dimensions, m	Weight including el. motor, automation, piping, spare parts, kg	Application
Model	Compressible gas	Capacity m³/min (nm³/h)	Suction	Discharge	Rotation speed, rpm	Type	Power, KW	Dimensions, m		Application
5GC2-300/4,5-64	APG	300 (78000)	0,45 (4,5)	6,27 (64)	6400-9600	GTU-12P (PS-90)	12000	2,90х2,00х2,40	20000	Gas processing
5GC2-420/2,5-45	APG	420 (80000)	0,32 (3,3)	4,5 (45,9)	8585	Gas turbine (PS-90)	10000	2,95х2,41х1,82	22500	Gas processing
5CD-208/30-45М	Hydrogen bearing gas	208 (375000)	2,94 (30)	4,41 (45)	8400	Steam turbine	6020	12,60х10,05х6,76	78400	Chemical industry. petrol catalytic reforming unit
5GC2-216/14-26	Hydrocarbon process gas	196,7÷216,4 (190000)	1,42 (14,5)	2,6 (26,5)	9636÷9892	Steam condensing turbine	4500	12,60х10,00х8,50	78400	Chemical industry
5CD-43/50-64	Hydrogen bearing gas	43 (130000)	4,9 (50)	6,07 (62)	6331	El. motor	2000	8,75х7,70х6,58	40630	Chemical industry. Diesel hydro-treater
5GC2-310/0,66-5 М3.1	Natural gas	310 (12300)	0,06 (0,66)	0,5 (5)	7415	El. motor	1600	10,50х3,50х4,00	41000	Chemical industry. Offshore stationary platforms

BASE 6

Model	Compressible gas	Capacity m³/min (nm³/h)	Pressure MPa (bar)		Rotation speed, rpm	Drive		Dimensions, m	Weight including el. motor, automation, piping, spare parts, kg	Application
Model	Compressible gas	Capacity m³/min (nm³/h)	Suction	Discharge	Rotation speed, rpm	Type	Power, KW	Dimensions, m		Application
6GC2-375/4-77 GTU	APG	375 (89000)	0,4 (4,08)	7,6 (77,5)	8377	Gas turbine (NK-16-18STD)	18000	33,74х14,15х31,26	423180	Gas processing
66GC-1162/1,3-38 GTU	APG	1162 (88000)	0,12 (1,3)	3,73 (38)	6784	Gas turbine (NK-16STD)	16000	37,80х32,50х30,75	420000	Gas processing
6GC2-260/2-38 GTU	Low pressure APG	256 (30000)	0,19 (1,94)	3,8 (38,76)	8143	Gas turbine (GTD-6,3RM)	6300	25,80х24,00х25,00	220000	Gas processing