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STUDY ON PREPARATION OF GRANULAR ACTIVATED CARBON FOR n-BUTANE ADSORPTION

Yanping Zhang

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Abstract

Granular activated carbon for n-butane adsorption was prepared from sawdust by activation with phosphoric acid. The results showed that this prepared activated carbon had better properties than the imported one: n-butane working capacity (BWC)12.0 g/100mL, abrasion resistance 96.95 %. Effects of certain factors in preparing process, such as phosphoric acid concentration, mass ratio of phosphoric acid to sawdust,and drying technology on the properties were investigated. Through special treatment technologies during shaping and thereafter,all properties of granular activated carbon for n-butane adsorption were improved greatly. Besides,mechanism of the n-butane adsorption was also discussed to show that activated carbon with high percentage of pore volume within the range of 1.8-5nm possesses high n-butane adsorbability.

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What this paper is about

Granular activated carbon for n-butane adsorption was prepared from sawdust by activation with phosphoric acid. The results showed that this prepared activated carbon had better properties than the imported one: n-butane working capacity (BWC)12.0 g/100mL, abrasion resistance 96.95 %. Effects of certain factors in preparing process, such as phosphoric acid concentration, mass ratio of phosphoric acid to sawdust,and drying technology on the properties were investigated. Through special treatment technologies during shaping and thereafter,all properties of granular activated carbon for n-butane adsorption were improved greatly. Besides,mechanism of the n-butane adsorption was also discussed to show that activated carbon with high percentage of pore volume within the range of 1.8-5nm possesses high n-butane adsorbability.

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Available abstract

Granular activated carbon for n-butane adsorption was prepared from sawdust by activation with phosphoric acid. The results showed that this prepared activated carbon had better properties than the imported one: n-butane working capacity (BWC)12.0 g/100mL, abrasion resistance 96.95 %. Effects of certain factors in preparing process, such as phosphoric acid concentration, mass ratio of phosphoric acid to sawdust,and drying technology on the properties were investigated. Through special treatment technologies during shaping and thereafter,all properties of granular activated carbon for n-butane adsorption were improved greatly. Besides,mechanism of the n-butane adsorption was also discussed to show that activated carbon with high percentage of pore volume within the range of 1.8-5nm possesses high n-butane adsorbability.

Key concepts: Butane, Chemistry, Phosphoric acid, Adsorption, Activated carbon, Sawdust, Carbon fibers, Chemical engineering

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