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Technology

LNG

In recent years, the demand for natural gas, which consists mainly of methane, has increased rapidly as it is considered an environmentally friendly energy source. The demand for natural gas is expected to further increase because it has the following outstanding features as an energy source:

  • It is a clean energy source that emits less CO2, SOx, NOx, and other pollutants than other fossil fuels;
  • It will be available for longer than petroleum as the Earth has larger reserves of natural gas; and
  • It is an energy source that offers excellent supply stability because natural gas reserves are not as concentrated in the Middle East as petroleum reserves are.
LNG* Chain

East Asia, which includes Japan, is the largest natural gas consumer in the world. Many of the world's largest gas fields are found in the Middle East, Southeast Asia, and Australia, and because East Asia is located some distance away and separated by oceans from these areas, it is not economical for natural gas to be transported to East Asia by pipelines**. For transportation to East Asia, therefore, natural gas is liquefied to reduce it to one six-hundredth of its original volume, and then transported on LNG carriers. As a result, an “LNG Chain” is required, by which natural gas that has been extracted from a gas field is refined, liquefied, transported by ship, and then re-gasified in the area where it is to be consumed.

*LNG stands for Liquefied Natural Gas.

**Located in relatively close proximity to one another, gas production areas and gas consumption areas in North America and Europe are not separated by any oceans. Therefore, natural gas is typically transported by pipelines.

LNG Chain

Since the construction of its first LNG plant in the Middle East in the 1970s, Chiyoda has constructed many LNG plants, primarily in the Middle East and Indonesia. During this time, Chiyoda has engaged in an ongoing effort to improve its design and construction technologies, while at the same time keeping up with advancing liquefaction technologies and responding to the increasing demand for larger and more reliable plants. Chiyoda has constructed not only LNG plants in gas-production areas, but also LNG receiving terminals in gas-consumption areas, mainly Japan. Chiyoda has constructed about half of Japan's LNG receiving terminals. Chiyoda, with its wealth of experience and refined technologies, offers a variety of highly reliable facilities that play a key role in the LNG Chain, both in gas-production areas and gas-consumption areas.

Chiyoda’s LNG-related Technologies

Natural gas liquefaction facility

LNG Receiving Facilities