High-Pressure Ammonia Synthesis Loop Centrifugal Compressor

Product Specifications

Technical details and manufacturing context for High-Pressure Ammonia Synthesis Loop Centrifugal Compressor

Definition

This high-performance centrifugal compressor is specifically engineered for the ammonia synthesis loop in fertilizer manufacturing plants. It circulates the hydrogen-nitrogen synthesis gas mixture at elevated pressures required for catalytic conversion to ammonia. The machine maintains precise flow rates and pressure ratios critical for optimal reactor performance and energy efficiency. Its robust construction withstands the corrosive nature of synthesis gas while ensuring reliable continuous operation in demanding industrial environments. The compressor is designed for integration into closed-loop systems, where it provides the necessary pressure rise to overcome system resistance and maintain circulation. It is available in a skid-mounted configuration, facilitating installation and maintenance. Key parameters include an operating pressure range of 1.0–1.6 bar, a flow rate of 150–300 Nm³/h, a power rating of 250–500 kW, a rotational speed of 3000–6000 rpm, a compression ratio of 1.5–2.5, an inlet temperature of 20–40 °C, a discharge temperature of 80–120 °C, a polytropic efficiency of 75–85%, a noise level of 85–95 dB(A) at 1 m (ISO 3744), and a vibration severity of ≤4.5 mm/s (ISO 10816-3, Zone B). Materials on file include Stainless Steel 316L, Nickel Alloy, and Carbon Steel Casing. The unit weight ranges from 2000–5000 kg. All values are reference ranges and must be verified with the legal manufacturer for specific applications.

Working Principle

The compressor operates by using a high-speed rotating impeller to impart kinetic energy to the synthesis gas. The gas enters the impeller axially and is accelerated radially outward. As the gas leaves the impeller, it passes through a diffuser where its velocity is reduced, converting kinetic energy into pressure. The volute casing further collects the gas and directs it to the discharge nozzle. This continuous process creates a pressure rise that drives the gas through the closed-loop system, maintaining the required circulation for ammonia synthesis. The impeller speed and geometry are designed to achieve the specified flow and pressure ratio.

Common Materials

Stainless Steel 316L, Nickel Alloy, Carbon Steel Casing

Technical Parameters

Parameter	Typical range	Notes & selection driver
Operating PressureRequired	1.0–1.6 bar	Design pressure range for synthesis gas compression
Flow RateRequired	150–300 Nm³/h	Volumetric flow capacity at standard conditions
Power RatingRequired	250–500 kW	Motor power requirement for compressor operation
Rotational SpeedRequired	3000–6000 rpm	Operating speed of the compressor shaft
Compression RatioRequired	1.5–2.5 ratio	Discharge to suction pressure ratio
Inlet Temperature	20–40 °C	Maximum allowable gas inlet temperature
Discharge Temperature	80–120 °C	After compression
Efficiency	75–85 %	Polytropic efficiency
Noise Level	85–95 dB(A)	At 1m distanceISO 3744
Vibration Severity	≤4.5 mm/s	Zone B for rigid machinesISO 10816-3
Material	Carbon steel / stainless steel	Corrosion resistance for ammoniaASTM A516 / A240
Weight	2000–5000 kg	Skid-mounted unit

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Impeller Part
Accelerates synthesis gas through rotational energy transfer

Material: Stainless Steel 316L
Diffuser Part
Converts kinetic energy to pressure energy

Material: Nickel Alloy
Shaft Part
Transmits rotational power from motor to impeller

Material: Alloy Steel
Casing Part
Contains pressure and directs gas flow

Material: Carbon Steel
Seal System Part
Prevents gas leakage along the shaft

Material: Carbon/Graphite
Lubrication System Optional
Provides oil circulation for bearing cooling and lubrication

Material: Steel Components
Bearings
Carry the rotor radial and axial loads at operating speed.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for High-Pressure Ammonia Synthesis Loop Centrifugal Compressor.

Manufacturers of High-Pressure Ammonia Synthesis Loop Centrifugal Compressor

Manufacturer profiles associated with High-Pressure Ammonia Synthesis Loop Centrifugal Compressor.

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Frequently Asked Questions

What is the typical operating pressure range for this compressor?

The design pressure range for synthesis gas compression is 1.0–1.6 bar. This is a reference range; the actual operating pressure must be confirmed with the manufacturer for your specific process conditions.

What materials are used in the construction?

Materials on file include Stainless Steel 316L, Nickel Alloy, and Carbon Steel Casing. These are selected for corrosion resistance to ammonia and synthesis gas. Verify material suitability with the manufacturer for your application.

What is the noise level at a distance of 1 meter?

The noise level is specified as 85–95 dB(A) at 1 meter, measured according to ISO 3744. This is a reference range; actual noise may vary depending on installation and operating conditions.

How should I verify the compressor's performance for my plant?

You should contact the legal manufacturer or supplier to confirm model-specific values for flow rate, pressure ratio, power, and other parameters. The listed values are directory reference ranges and must be validated for your specific application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 350 bar (typical operating: 150-250 bar)
flow rate:	10,000 to 500,000 Nm³/h (varies by model)
temperature:	-40°C to 200°C (typical operating: 30°C to 150°C)
slurry concentration:	Not applicable - designed for gas phase only