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Improved efficiency of adsorption processes

Exploitable results

The petrochemical industry and other related process industries, use significant quantities of energy for separation processes. Gas adsorption is an attractive alternative to conventional distillation methods, but it's efficiency can be impaired due to the degradation of the adsorbent. The models developed and validated during this project have greatly increased the understanding of this process. As a separation process gas adsorption is, in energy consumption terms, an attractive alternative to fractional, azeotropic or cryogenic distillation. The efficiency of the process can, however, be impaired by degradation of the adsorbent due to coking or hydrothermal ageing. The main objective of this project was to better understand the mechanism of performance deterioration in adsorbents through developing theoretical models for sequencing adsorption processes, and their subsequent experimental validation. This project is a follow-on from a previous JOULE project - The Methodology of Gas Adsorption Process Design - JOUE-CT90-0052. The current work on the fundamental science of adsorption, thermodynamics, kinetics and adsorption properties has produced an improved methodology for the selection and design of adsorption systems which reduce performance deterioration effects.

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