Published in: LNG

NG Purification to Produce LNG

Author Siamak Jef

Published on: November 19, 2023

For NG to be suitable for liquefaction requires the hydrogen sulphide content to be less than 4 ppmv, total sulfur less than 30 ppmv, carbon dioxide less than 50 ppmv, water content below 0,1 ppmv and mercury levels below 0.01 mg/m3n.
The primary objective of the gas purification plant is to remove unwanted contaminants such as carbon dioxide (CO2), hydrogen sulphide (H2S), water (H2O), nitrogen (N2), heavy hydrocarbons (C3+), and aromatics.