What is APCI LNG?

(APCI), is composed of a multistage propane (C3) precooling system followed by liquefaction using an MR system of nitrogen, methane, ethane and propane. The heart of the APCI C3MR process, which features thermal efficiencies of more than 93%, is its proprietary spiral-wound heat exchanger (SWHE).

What is LNG liquefaction process?

Liquified natural gas (LNG) is the liquid form of natural gas at cryogenic temperature of −265°F (−160°C). When natural gas is turned into LNG, its volume shrinks by a factor of approximately 600. This reduction in volume enables the gas to be transported economically over long distances.

What is the process of making LNG?

The LNG industry consists of three main processes: liquefaction and storage, ocean transportation via tankers, and storage and regasification.

What is LNG describe the processing for LNG?

A coolant, chilled by giant refrigerators, absorbs the heat from the natural gas. It cools the gas to -162°C, shrinking its volume by 600 times. This turns it into a clear, colourless, non-toxic liquid – liquefied natural gas, or LNG – that is much easier to store and transport.

What is single mixed refrigerant?

Single Mixed Refrigerant cycle The mixed refrigerant is compressed, partially condensed and expanded in several steps. The cooling duty generated by the expansions is transferred through Brazed Aluminium Heat Exchangers (BAHX) to the natural gas, allowing its liquefaction.

How does a main cryogenic heat exchanger work?

The Main Cryogenic Heat Exchanger is the heart of the LNG plant and is where natural gas will be liquefied and sub-cooled. Warm gas will enter the bottom of the exchanger tube and will exit at the top in a sub-cooled liquid state.

What is liquefaction process?

In materials science, liquefaction is a process that generates a liquid from a solid or a gas or that generates a non-liquid phase which behaves in accordance with fluid dynamics. It occurs both naturally and artificially.

What refrigerant is used in LNG?

Liquefied Natural Gas (LNG) This process uses two pure refrigerants—propane and ethylene circuits and a methane flash circuit cascaded to provide maximum LNG production by utilizing the horsepower available from gas turbines.

How do you mix refrigerants?

Operating pressures and temperatures will definitely change for the worse. The different types of refrigerants are not meant to be mixed. The refrigerant charge must be optimized by using the refrigerant’s respective pressure-temperature chart.

Where is the Wheatstone LNG project?

Wheatstone LNG is a liquefied natural gas plant operating in the Ashburton North Strategic Industrial Area, which is located 12 kilometres (7.5 mi) west of Onslow, Western Australia. The project is operated by Chevron Australia Pty. Ltd.

What is the Wheatstone project?

The Wheatstone foundation project, located 12 kilometres west of Onslow on the Pilbara coast of Western Australia, includes two liquefied natural gas (LNG) trains (8.9 million tonnes per annum) and a 200 TJ/per day domestic gas (DomGas) plant, with potential to expand to five LNG trains producing up to 25 million tonnes per year.1

What is chevron doing at Wheatstone?

Chevron Australia, as part of the Wheatstone Project, is constructing a two train liquefied natural gas (LNG) facility and domestic gas plant at the Ashburton North Strategic Industrial Area, 12 kilometres west of Onslow on the Pilbara coast of Western Australia. The initial -twotrain facility design capacity is 8.9 million tonnes per annum (MTPA).

What is the first stage of the LNG project?

In the first stage, the plant will have a gas plant, and two LNG trains with a capacity of 4.3 million tonnes per year each. It will be supplied from the Wheatstone, Iago, Julimar and Brunello offshore gas fields. Front-end engineering and design works of the project are being performed by three companies.