고유량 흡착질에서 부탄 농도 변화에 따른 활성탄 캐니스터의 흡탈착 특성에 대한 연구 = Study on the Adsorption and Desorption Characteristics of an Activated Carbon Canister according to the Change of Butane Concentration in High-Flow Adsorbate

다국어 초록 (Multilingual Abstract)

This study quantitatively assessed the adsorption performance of an automotive activated carbon canister, a critical component for reducing fuel vapor emission. We investigated the effects of key operational parameters – specially, flow rate and concentration – on the canister’s efficiency. Experimental tests were conducted under varying flow rates (50, 70, 90 g/hr) and fuel-air mixture ratios (5:5, 7:3, 9:1). Results showed that as fuel vapor concentration increased, the total adsorption capacity improved by an average of 15%, and the adsorption rate increased by 27%. Conversely, with an increasing flow rate, the adsorption time decreased by an average of 44%, while the adsorption rate increaed by up to 56%. To interpret the experimental findings, the fundamental principles of activated carbon adsorption and fixed-bed adsorption theory were applied. The validity of the adsorption mechanism was further verified through calculations of diffusion flux and Reynolds number.