LNG (liquefied natural gas) is a commonly used fuel source for power generation and transportation due to its high energy density and low emissions. However, LNG can contain impurities such as arsine and sulfur, which can cause corrosion and damage to equipment and pose a safety risk to workers. Therefore, it is important to remove these impurities from LNG before it is used. Arsine is a toxic gas that is formed when natural gas containing arsenic is liquefied. It can cause serious health problems if inhaled and can also corrode equipment. To remove arsine from LNG, a process called arsenic removal is used. This process involves passing the LNG through a bed of adsorbent material that selectively removes arsine from the gas stream. The adsorbent material is typically a metal oxide or activated carbon. Sulfur is another impurity that can be present in LNG. It can cause corrosion and damage to equipment and can also contribute to air pollution. To remove sulfur from LNG, a process called sulfur removal is used. This process involves converting the sulfur compounds in the LNG to hydrogen sulfide gas, which is then removed using a process called amine scrubbing. In amine scrubbing, the gas is passed through a solution of amine, which selectively removes the hydrogen sulfide gas from the gas stream.