Brayton refrigeration cycles for small-scale LNG

M. Roberts, F. Chen and Ö. Saygı-Arslan, Air Products and Chemicals Inc., Allentown, Pennsylvania LNG is an industrial process of great importance, with a worldwide baseload production capacity of approximately 300 metric MMtpy, primarily from large-scale baseload LNG plants with capacities of 3 metric MMtpy to 8 metric MMtpy per processing train. Natural gas is also becoming more popular as a transportation fuel since it is less costly than gasoline and diesel and is environmentally friendlier. With this growing new market, the development of unconventional feedstocks (such as shale gas and biomethane),1 and a desire to monetize stranded gas resources [such as offshore gas reservoirs usin