Power generation potential of liquified natural gas regasification terminals

Abstract

Summary The share of liquified natural gas (LNG) in the international trade of natural gas (NG) is continually increasing. This presents increasing opportunities to build power plants to generate electricity at LNG regasification terminals rather than wasting the power generation potential of LNG at about −162°C by regasifying it by seawater, ambient air, or by burning NG. Typically, over 5% of the NG received at LNG plants is used to liquify the remaining incoming gaseous NG at environmental conditions. Theoretically, all the energy consumed at LNG liquefaction plants can be recovered at LNG regasification terminals. In this study, the theoretical and practical power generation potential of regasified LNG is investigated by performing energy and exergy analyses. It is shown that up to 0.191 kWh of electric power can be generated during the regasification of LNG per standard m3 of NG regasified. The potential economic gains associated with power generation at LNG regasification facilities are demonstrated by analyzing the 2018 LNG imports of Turkey as a case study and the world. It is shown that the 314 million tons of LNG imported globally in 2018 has the electric power generation potential of 88 billion kWh with a market value of over 10 billion USD. It also has the potential to offset 38 million tons of CO2 emissions.

Synergies of fuel cell system thermal management and cryogenic hydrogen exergy utilization

“…Part of this energy (ideally, the exergy) could be recovered. Technical applications for exergy recovery of cryogenic substances can be found mostly in liquefied natural gas regasification [7][8][9][10][11][12][13][14][15] , but also for example for liquid nitrogen 16 . For hydrogen 17,18 , technical implementations are rarely considered and thermodynamically ideal cryogenic hydrogen exergy utilization systems as well as hydrogen conditioning systems for FCSs in general are currently (to the best knowledge of the authors) not considered in literature.…”

Shuffled Complex Evolution-Based Performance Enhancement and Analysis of Cascade Liquefaction Process for Large-Scale LNG Production

“…In recent years, there has been growing interest in the consumption of natural gas [1] as markets continue to expand [2,3]. Global consumption of natural gas increased by 1.7% in 2015, representing 23.8% of primary energy consumption [4].…”

Redundant energy combination and recovery scheme for dual fuel carriers based on thermoelectric harvesting with a large temperature range

“…Compared with traditional diesel fuel, liquefied natural gas (LNG) has a low price and a high combustion calorific value, which can provide more heat and greatly reduce the emissions of polluting gases, for example, CO 2 , sulfur oxides and nitrogen oxides 2 . Therefore, in the past decade, LNG has been widely applied and popularized in many energy fields, such as the thermal power generation, heavy truck transportation and district heating 3,4 . Promoted by the Tier III emission control standards of the international maritime organization in 2020, 5,6 LNG powered ships have been greatly developed, and the technology of LNG‐diesel dual fuel engine is becoming more and more mature in the shipping industry.…”

“…2 Therefore, in the past decade, LNG has been widely applied and popularized in many energy fields, such as the thermal power generation, heavy truck transportation and district heating. 3,4 Promoted by the Tier III emission control standards of the international maritime organization in 2020, 5,6 LNG powered ships have been greatly developed, and the technology of LNG-diesel dual fuel engine is becoming more and more mature in the shipping industry. Generally, the LNG fuel is stored in a fuel tank in the liquid form at 110 K under normal pressure, and needs to be gasified and heated into fuel gas at a certain pressure with a suitable temperature required by the dual fuel engine and auxiliary equipment.…”