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The global use of natural gas is growing quickly. This is primarily attributed to its favorable characteristics and to the environmental advantages it enjoys over other fossil fuels such as oil and coal. One of the key challenges in supplying natural gas is the form (phase) at which it should be delivered. Natural gas may be supplied to the consume...
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Natural gas is often promoted as the most environmentally friendly of all fossil fuels, and liquefied natural gas (LNG) as a modern and efficient way of transporting it. Some research has been carried out into the local environmental impact of LNG facilities, but almost none into aspects related to climate change.
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Natural gas as a primary fossil fuel, will grow faster than both oil and coal for the next decades and distinguishes by its lower environmental impact in comparison to other conventional fuels. The paper focuses on the critical problem of natural gas supply in Greece and especially in its liquid form, LNG. A crucial problem in this field is the sel...
Natural gas plays an important role in the global energy system as an input to power generation, heating, and industry. This
article identifies key drivers and uncertainties for natural gas markets in the coming decades. These include the availability
of natural gas from conventional and unconventional sources, the role of international trade, and...
Liquefied natural gas(LNG) is natural gas that has been converted temporarily to liquid form for ease of storage and transport it. Natural gas is the worlds cleanest burning fossil fuel and it has emerged as the environmentally preferred fuel of choice. In Korea, the demand of this has been increased since the first import from the Indonesia in 198...
Bangladesh transport sector is still heavily dependent on imported oil in an effort to support its growing economy. The volatile oil prices and the unstable political situation of the Middle East, put the government of Bangladesh in a politically compromising position and force the country to a big amount of financial loss every year in the fuel an...
Citations
... However, the study did not include the SRU and rigorous liquefaction cycles. The author found that through heat integration, heating, and cooling utilities could be reduced by 15 and 29%, respectively ( Al-Sobhi, 2007 ). Aspelund et al. analyzed the design of subambient processes using the ExPAnd tool, a new tool based on pinch and exergy principles. ...
The liquefied natural gas (LNG) chain requires significant amounts of resources. Enhancing its efficiency is essential due to environmental concerns, amongst others. Here, we presented various optimization, integration, and multi-scale opportunities that can improve the chain's outputs for a given feed. Our recommendations were derived from rigorous thermodynamic analyses while considering multiple operational modes. Many opportunities were identified; some are suitable for immediate implementation, while others are futuristic. The most appealing options relate to the deployment of cutting-edge energy generators. For 7.81GW feed exergy, the chain's prevailing holding mode loss is enough to power a mega LNG plant processing 23GW feed exergy. Many heat integration opportunities are missed due to standard practices. Losses in standalone mode can be misleading. When considering the utility steps, liquefaction and sweetening losses are the highest. Fuel cells and solar energy are well suited for these and can potentially enhance the chain LNG delivery by over 30%.
... 28 Table 9 lists the typical composition of a sample of natural gas taken from Qatar's North Field. 44 All forms of natural gas need to be treated to remove impurities (e.g., carbon dioxide, hydrogen sulfide, nitrogen, and mercury) and/or heavier hydrocarbons (e.g., butane and propane) before the gas can be sent to the downstream liquefaction plant. The pretreatment may consist of three main stages: acid gas removal, dehydration, and mercury removal ( Figure 3). ...
The global demand of liquefied natural gas (LNG) has risen rapidly in recent years for the reasons of energy security and sustainable development. This has led to considerable recent research interests and efforts in the LNG production chain and associated risks in handling, storage, and transport of LNG, largely driven by the intrinsic process safety issues of LNG, potential terrorist threats, and public confidence in LNG safety. This review presents an overview on some recent advances in the LNG value chain, covering upstream gas production and gathering, liquefaction, shipping, and regasification processes. Recent developments in the experimentation and modeling of LNG spills associated with the LNG value chain are then summarized, covering the events following a LNG spill, including LNG pool formation, vapor dispersion, and combustion. The consequent hazards and safety issues are also discussed, with a focus on the methods for improving the safety of personnel, facilities, and ships. The key technical gaps in the related research areas have been identified, and future research directions are outlined.
