Consider factors affecting onshore LNG plant design

H. Pandya, Saipem India Projects Ltd., New Delhi, India In the LNG value chain, liquefaction is the most critical part of the processing chain. When designing an onshore LNG plant—especially the liquefaction section—it is important to consider critical design parameters. Composition of feed and export market. The composition and variability of the feed gas are essential parameters in the design of an LNG plant. The contaminants (acid gases, water, mercury and sulfurous components) contained in the gas determine the type and complexity of the plant’s preprocessing section. The heavy hydrocarbons content influences the choice of the NGL recovery section, the fractionation technology and the