Abstract
Dehydration of gases is crucial in industry. Current dehydration methods have concerns about high energy consumption and environmental pollution. In this work, natural gas, an important energy source, was selected as a model gas to investigate dehydration using a cost-effective biosorbent in a pressure swing adsorption process. The biosorbent was developed from flax shives, a byproduct of the flax industry, and are representative of renewable cellulose materials. The morphology, surface functional groups, and thermal stability of the biosorbent were investigated by FE-SEM, XPS, and TGA. The biosorbent has higher water adsorption capacity (up to 0.9 g/g) and higher water selectivity compared to those of conventional adsorbents. Adsorption of the main component of natural gas, i.e., nonpolar methane, was negligible. In addition, the most significant operation factors and interaction among them were determined with regards to their effects on water adsorption capacity. The water adsorption equilibrium data w...
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