PDF Publication Title:
Text from PDF Page: 013
VI Abstract XIII VI Abstract At present, nitrogen production from air by pressure swing adsorption (PSA) is simulated almost exclusively at low product purity levels (< 99 % N2). However, with increasing global demand for highly purified gases provided by energy-efficient separation processes, the requirement for either extensive experimental research in the high-purity range or predictive computer simulations arises. Moreover, with increasing nitrogen purity, PSA plants require an over-proportional air demand with the consequence that high-purity PSA systems engender a distinct interest in energy-saving measures. This dissertation presents a mathematical model of a twin-bed PSA plant equipped with a carbon molecular sieve (Shirasagi MSC CT-350) adsorbent for the generation of high-purity nitrogen (99.9 – 99.999 % N2). The corresponding model is implemented in the process simulator Aspen AdsorptionTM. The influence of operating conditions, cycle organisation, as well as plant design on the PSA process performance is validated. Specifically, effects of adsorption pressure, operating temperature, half-cycle time, purge stream flow rate, cutting time, flow resistances, and volume of N2-receiver tank are studied. The precision of the performance prediction by numerical simulations is critically discussed. Based on the new insights, efficiency improvement strategies with a focus on reduced energy consumption are introduced and reviewed. Finally, a future outlook on the research is presented. The content of this dissertation is partially published in the following articles: ❖ A. Marcinek, J. Guderian, D. Bathen, Performance determination of high-purity N2-PSA plants, Adsorption 26 (2020) 1215-1226, DOI: 10.1007/s10450-020-00204-9 [1]. ❖ A. Marcinek, J. Guderian, D. Bathen, Process intensification of the high-purity nitrogen production in twin-bed Pressure Swing Adsorption plants, Adsorption (2021), DOI: 10.1007/s10450-020-00291-8 [2]. ❖ A. Marcinek, A. Möller, J. Guderian, D. Bathen, Dynamic simulation of high-purity twin- bed N2-PSA plants, Adsorption (2021), DOI: 10.1007/s10450-021-00320-0 [3].PDF Image | Modelling and Simulation of Twin-Bed Pressure Swing Adsorption Plants
PDF Search Title:
Modelling and Simulation of Twin-Bed Pressure Swing Adsorption PlantsOriginal File Name Searched:
dissertation_marcinek.pdfDIY PDF Search: Google It | Yahoo | Bing
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |