الفهرس 
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Abstract
Due to the increasing demand for natural gas in the world today, transportation of natural gas from different parts of the world has become a necessity. Liquefying of the natural gas provides a safer and cheaper alternative for its transportation and increases its storage capabilities. However, it has been accounting for the highest operating cost if compared to the other chain of the industry. Hence, liquefaction process has been a key area that constantly in need for development to save cost and increase LNG plant capacity through production. This report focuses on summarizing the comparison between recent baseload LNG processes. The range of technology encompasses the Propane/MR process, a Cascade process, a version of the Dual Mixed Refrigerant process, a simple Single Mixed Refrigerant process and a pre-cooled Nitrogen expansion process. Comparison on the basis of specific costs, specific power and fuel efficiency was conducted. The Propane/MR process appears to be the best choice for large capacity LNG trains, employing air cooling in a tropical climate. Other promising processes are the Dual Mixed Refrigerant process and the Single Mixed refrigerant process. The Cascade process appears to be relatively expensive, partly disadvantaged. Under colder conditions (arctic, water cooling), the costs and power requirements come closer to the Propane/MR process. The pre-cooled Nitrogen Expansion process is not an economic choice for a large onshore application. It may be an alternative for smaller scale offshore applications.