Gas Hydrate Technology for Sustainable Separation and Purification of Noble Gases

There is an urgent need for sustainable engineering in the processing sector, focusing on waste management, with chemical separation playing a key role in handling chemicals based on their physical properties. Noble gases, found in small amounts in the atmosphere, are essential for daily life, making their separation and purification crucial for practical use. Cryogenic distillation is traditionally used to separate noble gases from gas mixtures, but its high operational costs and high energy demands have prompted the search for alternative methods. This chapter reviews gas hydrate technology as an alternative method for separating and purifying noble gases, emphasizing its lower energy requirements. Details of various studies that report the use of gas hydrates with noble gases are presented, with the limitations of gas hydrate technology and future research directions. Overall, gas hydrate technology, due to its lower energy requirement, has the potential to be utilized in the separation of noble gases.