January 2014

Special Report: Natural Gas Developments

Choose the best refrigeration technology for small-scale LNG production

A frequent question is which refrigeration technology is the best for small-scale LNG production. Here, a broad range of aspects and guidelines for which is best suited for what type of application is covered.

Kohler, T., Bruentrup, M., Linde Engineering; Key, R. D., Edvardsson, T., Linde Process Plants Inc.

Low natural gas prices are allowing multiple secondary players in the US market to consider investments in small-scale LNG plants. A frequent question is which refrigeration technology is the best for liquefied natural gas (LNG) production. At first glance, there are numerous process alternatives on the market. However, when taking a closer look, the choice simplifies to either single mixed-refrigerant (SMR) or nitrogen (N2) expander technology. These technologies dominate the small-scale plant capacity range between 50,000 gallons per day (gpd) and 500,000 gpd of LNG. Here, a broad range of aspects and guidelines for which technology is best suited for what type of application is covered

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