DEVELOPMENT OF NOVEL COMPOSITE ADSORBENTS FOR IMPROVING BUTANE ADSORPTION PERFORMANCE
Development of efficient storage technology in the fuels such as hydrogen and low hydrocarbon has been has been recognized as one of the key issues in promoting highly efficient energy utilization. Adsorptive storage technology that is usable in low pressure is a promising method, but it is not put to practical use with the performance shortage of adsorbent. A novel adsorbent design technique was proposed to composite adsorbent for improving the adsorption performance of hydrogen and low hydrocarbon. In the process, the composite adsorbent was prepared after silica gel was synthesized in the pores of activated carbons by impregnating activated carbons in sodium silicate solution. Two kinds of activated carbons (Chemical activated carbons-AC1 and Steam activated carbons-AC2) were tested to produce composite adsorbent and to investigate the performance by measuring the adsorption isotherms of butane and pore structure characteristics. The volume-based amount of adsorption for the adsorbents prepared at sodium silicate solution concentration of 0.1wt％ and impregnating time of 48 h are 1.04 and 1.53 times that of the raw activated carbons (AC1 and AC2), respectively. The volume-based amount of adsorption decreased under the condition of 10wt％ of sodium silicate solution concentration and 48h of impregnating time. The packing density of the composite adsorbent increased with the increase of sodium silicate solution concentration. Based on the pore structure characteristics, it is clarified that the butane adsorption performance is related to the pore volume of diameter in rage 1-4nm.
Activated Carbon Silica Butane Adsorption Isotherm Pore Structure
H. HUANG F. WATANABE N. KOBAYASHI M. HASATANI K. KITAGAWA
EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603,Japan Research Institute for Industrial Technology, Aichi Institute of Technology, Yachigusa 1247, Yagusa- Department of Mechanical Engineering, Aichi Institute of Technology, Yachigusa 1247, Yagusa-cho, Toy
国际会议
北京
英文
412-417
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）