How to become the most efficient and reliable LNG plants in China?

Ningxia Hanas LNG plant is built by the international top chemical engineering company Technip of France in the way of EPCM general contracting. It is one of the most efficient and reliable LNG plants in China.

The company consists of two sets of 500 million m3/year LNG facilities and utilities, mainly including six parts: feed gas compression, purification, liquefaction, LNG storage, truck loading and utilities.

Design Advantages

  • AThe essential safety design principle ensures safe, stable and long-term operation.
  • BAll process units can be operated independently.
  • CProduct quality and capacity in the leading position in the industry.
  • DThe main equipment and facilities are purchased from world-famous manufacturers to ensure the efficiency.
  • EOptimized and competitive operating costs.
  • FHigh input of safety investment with reliable safety and fire fighting facilities.
  • GHigh automated instrument control system and quick response to equipment failure.
  • HScientific and reasonable process design for better maintenance.

Process Diagram

Hanas LNG Plant owns world-class production equipment, process and technology

with all the equipment, facilities, instruments, materials and information software systems purchased globally to build an international standard LNG production base.

  • Feed Gas Compressor & Mixed Refrigerant Compressor

    The centrifugal compressor produced by Dresser-Rand is selected, which has high efficiency, compact structure, high reliability and high degree of automation. Advanced aerodynamic structure and increased shaft diameter enable the compressor to adapt to larger gas flow and compression ratio.

  • Mixed Refrigerant Compressor Gearbox

    The gearbox is designed and manufactured by Voith, which is more safe, stable, economic but with excellent performance.

    1. High reliability, long service life with 99.97% reliability and average 20 years MTBF.

    2. High efficiency. The speed regulating planetary gear adopts the principle of power split. 80% of the shaft power is transmitted rigidly through the secondary gear, and the efficiency can reach 99%. 20% of the shaft power is superposed through hydraulic speed regulation, and the comprehensive efficiency is above 93%;

    3. Long maintenance cycle. The overhaul period of the gearbox is 8 years with more than 70000 effective running hours.

    4. Simple and lean structure, with very small foot space.

  • Boil-off Gas Compressor

    The boil-off gas compressor provided by Kobe is a kind of reciprocating compressor with high performance and reliable operations, and the key components (piston, shaft, valve and padding chamber) have self-lubricating function to reduce abrasion with integrate sealing.

  • Main Cryogenic Heat Exchanger (MCHE)

    The main cryogenic heat exchanger (MCHE) is used as the main liquefaction unit for the two trains. It is designed and manufactured by Air Products, which is an international famous natural gas liquefaction cryogenic heat exchanger with more than 70 years history. MCHE is the core of the refrigeration section and the most important heat exchanger for LNG liquefaction. It is composed of three bundles to cool and liquefy the natural gas by – 162 ℃, with a total heat exchange area of 32,000m2 and the unit is about 60m high. The driven motor is provided by Dresser-Rand.

  • Air Compressor

    The air compressor is provided by Ingersoll Rand with high efficiency, good performance, energy saving, easy maintenance and reliable operations, it is equipped with remote management function.

  • LNG Tank

    The LNG tank is designed and manufactured by Whessoe. It is a full containment concrete roof tank. The inner tank is made of 9% nickel steel, the outer tank is made of 1-meter thick high-strength C50 reinforced concrete, and the middle tank is filled with expanded perlite for cold insulation. The tank foundation is reinforced by the pile foundation and fixed anchor buried deep underground to ensure that it remains stable and intact in the event of extreme natural disasters.

  • Truck Loading Station

    The cryogenic submersible LNG pump is provided by Ebara to transfer LNG from the tank to the truck. The truck loading station is equipped with 16 loading arms for truck loading and each truck only takes 50 minutes for loading. It is capable to load 360-380 trucks within 24 hours.

  • Power Supply System

    As an extremely important power unit in the plant, the general design of the power supply system is undertaken by Technip. The electrical equipment equipped with the power supply system is a collection of well-known brands, such as Siemens, ABB, Schneider, Nari. The power supply system can be operated and protected by computer. 110kV duel power supply and 10kV safety power supply are used in the plant to ensure the stability and reliability of the power supply system and reduce the failure of system cables.

  • DCS, SIS and GDS systems

    The distributed control system (DCS), safety instrument system (SIS) and gas detector system (GDS) adopted DeltaV system from Emerson, which is more reliable, open, flexible and easy to maintain. Its controllers and cards are all equipped with G3 anti-corrosion certification. The system is equipped with high reliability components, fault self-diagnosis, hot plugging and redundant fault tolerance, which enable the system to get SIL3 required by the petrochemical industry. The data can be easily transferred between each system through the server to play the maximum roles of each system.

  • Fire Control System

    The fire control system is provided by MiniMax with remote control of 274 smoke detectors, 93 flame detectors, 76 manual alarms, 4 sets of foam fire extinguishing systems, 3 sets of dry hydrant systems, 2 sets of dry powder fire extinguishing systems, 3 sets of fire pumps, and 3 sets of smoke exhaust fans in the plant. The related fire facility will be started when the system detected the fire incident to extinguish the fire in the alarm area.

  • PLC System

    The loading control and hot oil system adopt S7-400/300 series PLC from Siemens, and the FG, MR and BOG compressors adopt Fanuc series PLC from General Electrical, realizing flexible application of the control function of small set of equipment in the facility.

  • SCADA System

    The SCADA system is developed by Siemens, with the functions of real-time display, overrun alarm, event recording (SOE), remote control and adjustment, and automatic recording of operation reports for the operation data of electrical equipment with communication functions such as motors, transformers, etc., so as to accurately grasp the system status and quickly diagnose system faults. SCADA system is a powerful computer remote supervision and control and data acquisition system. It comprehensively uses computer and control technology, communication and network technology to complete the real-time data acquisition of various processes or equipment with decentralized measurement and control points, and conduct local and remote automatic control, and comprehensive real-time monitoring of the production process. It can provide necessary and complete data and technical means to safe production, dispatch, management, optimization and fault diagnosis.

  • AMS System

    The AMS system is developed by Emerson, which can be used for full life cycle management and centralized management of instrument facility. With HART protocol communication, the real-time transmission of equipment data and alarm diagnosis can be used to reduce the loss of unplanned shut-down. It also provides online equipment diagnosis and equipment status information for easier instrument and valve maintenance.

  • System One

    The fault diagnosis and monitoring system for large rotating equipment is developed by General Electric Bentley to record the vibration, displacement, temperature and other parameters of the FG&MR compressor in real time and formulate spectrum, axis trajectory and other trends, which is easy to detect and monitor the operating data and equipment status, and alert once there is fault to ensure the safe, reliable and stable operation of the compressor.

  • CMMS System

    The computer maintenance management (CMMS) system is developed by Siveco, with the functions of equipment management, work order management, spare parts management, report management, etc., so that the maintenance management can be carried out in a scientific and orderly manner, and the maintenance management can be corrected and improved in a timely manner through statistical analysis.

  • DCS Remote Data Backup System

    The remote intelligent data backup system is developed by Emerson, which can back up the production data and system data of DCS, SIS, GDS systems in real time, and can quickly recover when the control station fails to ensure data security.

  • Hazardous Chemical Risk Monitoring and Alerting System

    The system is used 24-hour to do the online monitoring and real-time alerting for major hazardous sources in the plant area. The risk analysis and safety commitment announcement can be done and the daily monitoring and alerting reports can be generated to ensure the various risk prevention and control measures in place and risks under control.

  • Hanas Safety Management Value

    Ningxia Hanas LNG Co., Ltd. always adheres to the principle of “safety first, prevention first and comprehensive management”, takes the safety vision of “adhere to the red line of production safety, create essential safety and strive to be the benchmark of the industry” as the safety vision, and constructs the safety concept of “safety is Paramount, responsibility is mountain, people first, prevention is not inevitable, risks are controlled and eliminated”. Guided by the safety concept, Enhance the safety awareness of all staff.

  • Establish a safety management pyramid to fulfill the responsibility of safety production

    Ningxia Hanas Liquefied Natural Gas Co., Ltd. continues to strengthen and implement the main responsibility of production safety, by consolidating the organization and leadership responsibilities of the production safety committee, the primary responsibility of the main person in charge of production safety, the comprehensive supervision and management responsibilities of the Ministry of Safety and Environmental Protection and safety management personnel, and the safety responsibility of all employees. Strengthen the responsibility of production safety from the person in charge of the enterprise to each employee, from the management to the technical layer, from each profession to each position, horizontal to the edge, vertical to the end, to establish a layer of responsibility, everyone is responsible, each of the staff responsibility system.

  • Profound Safety Management Regulations

    Through continuous revision, review and improvement, Ningxia Hanas LNG Co., Ltd. has developed a safety management system that conforms to the company’s actual safety production and promotes the company’s rapid development. Closely focusing on “fundamentally eliminating accident risks and fundamentally solving problems”, the main responsibility of implementation runs through the whole process of safety production decision-making, deployment, assessment and supervision. Earnestly achieve the “five in place”, and with the construction of production safety standardization as the starting point, improve the company’s four safety management system,constantly improve the company’s safety management capacity and level, prevent and reduce production safety accidents, to ensure that the company’s production and operation management under the constraints of the safety system orderly development.

  • Standard Safety Management System

    Ningxia Hanas LNG Co., Ltd. successfully passed the assessment of the second-level safety production standardization of the Autonomous region on August 17, 2021, and has been committed to promoting the construction of safety production standardization and continuously focusing on concrete and detailed work. Adhering to the concept of people-oriented safety and combining with the actual situation, the company has sorted out the systems, procedures, procedures, documents, records and books involved in the standardization of work safety, gradually established and improved the standardization management system of work safety and the rules and regulations system, and through the establishment and improvement of all staff safety responsibility system,

    We’ve been recognized as the second-level standardization evaluation of safe production in the autonomous region on August 17, 2021, and is constantly committed to promoting the construction of safe production standardization. Adhering to the people-oriented safety concept, the company combing the system, procedure, document, and records involved in standardization construction, and gradually establishing and improving the safety production standardization management system and regulations system. By establishing and improving the safety production responsibility system of all staff, we have established Risk Control and Hazards Elimination & Rectification system to constantly improve safety management level and to ensure the safe and reliable operations in the plant.

    We will establish a dual prevention mechanism for multi-level management of security risks and screening and treatment of hidden dangers to continuously improve safety management and ensure safe production.

  • Eliminate the Incident and Hazards

    Ningxia Hanas LNG Co., LTD strictly follows the requirements of the Office of The State Council Safety Committee and the autonomous region on the construction of the double prevention mechanism, adheres to the goal orientation, problem orientation and effect orientation, takes the relevant laws, regulations and rules of the Work Safety Law as the basis, and takes the company’s management system and operation rules as the support. By means of full participation, whole-process control, effective operation, assessment, rewards and punishments, and continuous improvement, we comprehensively promote the construction of the company’s double-prevention mechanism. According to the risk control list and hidden danger screening list, we will strictly implement the hidden danger screening plan, establish and improve the “two clear single ledger”, that is, the list of problems and system measures as well as the dynamic management ledger of hidden danger screening and treatment, so as to achieve accurate power generation, closed-loop management, and timely elimination of hidden dangers.

  • Build an Intrinsically Safe Enterprise

    Since its establishment, Ningxia Hanas LNG Co., Ltd. has always adhered to high standards, strict requirements, high quality and high efficiency, adopted international advanced design concept and management mode, gathered domestic and foreign talents, introduced international advanced and reliable equipment and facilities, and created a healthy, safe and comfortable working environment, committed to building an intrinsically safe enterprise.

Hanas Vision
Powering China’s energy transformation and Inspiring the Green Life Style
Safety Vision
Adhering to the red line of production safety, creating intrinsic safety, striving to be the industry benchmark.
Safety Philosophy
Safety as the heaven, responsibility as a mountain, people oriented, preventing incident, controlling risks and eliminating hazards.

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Excellent Professional Talent Team

Ningxia Hanas LNG Co., Ltd. highlight the selection and training of talents, and has established a talent team with excellent professional skills and strong comprehensive quality. The average age of employees is 36 years old. From the perspective of education level, 7% of the total employees have post graduate degree or above, with undergraduate education accounts for 75% and junior college education accounts for 18% of the total number of employees. The company has 4 senior engineers, 18 intermediate engineers, 38 assistant engineers and 10 registered safety engineers.

Hanas LNG company also engaged foreign experts with rich management experience and plant operation and maintenance experience in the LNG industry to guide and manage the Hanas LNG plant’s production operation, process flow and equipment maintenance, providing a solid and reliable guarantee for the high-quality business development.