Another widely used method is adsorption, which utilizes materials such as activated carbon or molecular sieves to capture and adsorb gaseous impurities like carbon dioxide and hydrogen sulfide. This process is particularly effective for removing sweetening agents, which can enhance the gas's quality and make it suitable for market distribution. In addition, membrane separation technology is gaining traction, leveraging selectively permeable membranes to separate natural gas from unwanted gases, thus improving the overall purity without the need for extensive chemical treatment.