Evaluate train size, drivers and digitalization options for mid-scale LNG

M. Russell and J. Adams, Siemens, Houston, Texas In some select cases, mid-scale LNG trains (0.5 MMtpy–2 MMtpy) may offer commercial, logistical and financial advantages over large-scale LNG trains. However, the decision is not “one-size-fits-all,” as large trains (> 3 MMtpy) offer economies of scale, among other benefits. Selecting a solution that delivers the most value over the life of a project is contingent on the operator’s objectives and circumstances. Ultimately, train size and liquefaction licensor selection have only a marginal impact on project capital cost, as long as the facility achieves a minimum production capacity of 8 MMtpy.1 Objective cases are offered here for the c