Liquefied Natural Gas (LNG).

BANGLAMARK provides a full scope of services for the construction of storage tanks and handling facilities for low-temperature liquefied substances such as LNG, Ethylene, Ammonia, Oxygen, Nitrogen, Hydrogen, etc. (temperatures from -4 °C to -196 °C). We have the resources and expert foreign engineers to design and build LNG storage tanks in any location and under all types of logistical constraints. Our people have the localized knowledge to provide front-end permitting and regulatory compliance support all the way through startup. We offer full-process EPC (engineering, procurement and construction), including maintenance, for tanks and auxiliary equipment and facilities.

About the LNG Terminal: An LNG terminal is a facility for storing liquefied natural gas. It can include special tanks, ships or building structures, as well as port infrastructure and pipelines.

LNG Unloading System

LNG unloading operations use articulated arms which are specifically designed to transfer cargo safely from the ship to the terminal. These articulated arms are called “hard arms” and are the connection between the ship’s manifold system (piping connection) and the terminal. Special types of pipes are used to transfer LNG from the ships to the storage tanks on the terminal. The LNG is received at an extremely low temperature (-160 °C) and transferred to the tanks.

LNG Piping Network

The LNG-PIPE is a double-pipe system designed for the transport of fluids from ships to shore. It consists of an inner pipe which transports the media, a cold-resistant heat insulation layer, and an 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.

LNG-PIPE consists of:

• Inner Pipe
• Heat Insulation
• Encasing Pipe

Boil-Off Gas (BOG)

Boil-Off Gas (BOG) Reliquefaction 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. They also ensure that the LNG composition will remain identical over time, avoiding the well-known “LNG ageing” phenomenon.

Advantages of BOG Reliquefaction:

• 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

LNG Re-Gasification/ Vaporizer System

Regasification is the process of converting LNG from the liquid to the 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: These use seawater as the heat source
• Submerged Combustion Vaporizers: These burn natural gas produced by the terminal and pass the hot gases into a water bath containing a tubular heat exchanger where LNG flows
• Intermediate Fluid Vaporizers: These rely on 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: These use heat from the surrounding air to warm and vaporize the LNG

Balance of Plant (BOP)

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 an LNG plant needed to deliver the energy, other than the generating unit itself. BANGLAMARK provides a “One Stop LNG Solution” concept to meet the needs of the international LNG industry.

The balance of plant (BOP) of an LNG plant includes:

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

LPG Balance of Plant

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 an LPG plant needed to deliver the energy, other than the generating unit itself. BANGLAMARK provides a “One Stop LPG Solution” concept to meet the needs of the international LPG industry. We know the leading international LPG standards, and we design and construct LPG plants for all sectors of the market. Balance of plant covers the following items:

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