Liquefied Natural Gas (LNG)

The LNG-PIPE is a double-pipe system designed for the transport of fluids on ships to onshore. It consists of an inner pipe which transports the media, a cold-resistant heat insulation layer, and a encasing pipe. The inner pipeline is guided by bearings within the encasing pipe. End closures for sealing the ring space are installed at the ends of the FW LNGPIPE. The ring space is evacuated to 1 mbar to reduce the heat transfer to the medium and the cooling of the encasing pipe. Components and Materials.

LNG-PIPE consists of:

• Inner Pipe
• Heat Insulation
• Encasing Pipe

Boil-Off Gas (BOG) Reliquefication products are used to recover the BOG naturally generated by heat leaks into cryogenic Liquefied Natural Gas (LNG) storage, and during ship loading and unloading phases. These solutions avoid unwanted BOG flaring, and can also be used for debottlenecking LNG export terminals. It also ensure that the LNG composition will remain identical over time, avoiding the well-known “LNG ageing” phenomenon.

Advantages of BOG Reliquefication:

• Recovers BOG all along the LNG transport chain, from well to end user, therefore ensuring “zero flaring” logistics
• Maintains LNG fuel specification
• Helps debottleneck LNG export terminals

Regasification is the process of converting LNG gas from liquid state to gaseous state. Heat exchangers are used to Re-gasify the LNG after it is removed from the tanks and pressurized between 70-100 bars. The LNG stored in the tanks is sent to vaporizers which warm and Re-gasify the LNG. As this occurs, LNG stored in the tanks is evaporating. Once the boil-off gas is also re-condensed, LNG is sent to vaporizers. This will avoid flaring or venting boil-off gas for most operating conditions.

The main types of vaporizers used in the LNG industry are:

• Open Rack Vaporizers: that use seawater (with possible synergy with the neighboring combined cycle gas power plant at the Monitor terminal)
• Submerged Combustion Vaporizers: That is a water bath heated by natural gas burner
• Intermediate Fluid Vaporizers: An Intermediate Fluid Vaporizers relies upon two levels of thermal exchange: the first is between LNG and an intermediate fluid such as propane, and the second is between the intermediate fluid and a heat source which is usually seawater
• Ambient Air Vaporizers: Submerged Combustion Vaporizers burn natural gas produced by the terminal and pass the hot gases into a water bath containing a tubular heat exchanger where LNG flows

Balance of plant (BOP) is a term generally used in the context of engineering to refer to all the supporting components and auxiliary systems of a LNG plant needed to deliver the energy, other than the generating unit itself. Marksan provides a “One Stop LNG Solution” concept to meet the needs of International LNG industry.

The Balance of Plant (BOP) of LNG aggregates the below items:

• LNG Network System
• Firefighting System
• Fire and Gas Alarm System
• Metering System
• Piping Network
• Desuperheater
• Electric and Instrumentation System

Balance of plant (BOP) is a term generally used in the context of engineering to refer to all the supporting components and auxiliary systems of a LPG plant needed to deliver the energy, other than the generating unit itself. Marksan  provides a “One Stop LPG Solution” concept to meet the needs of International LPG industry. We have a thorough knowledge of leading International LPG Standards and Design and Construct LPG Plant in all sectors of the market. Continuous development of our company results in extension of the range of offered products and services. Balance of plant covers the below items,

• LPG Network System
• Instrumentation for LPG Tanks
• Weigh Bridge
• Fire & Gas Alarm System
• Firefighting system
• Compressed Air System
• Electrical System
• Utility Water Piping