The Appropriate Conditions for Preparation and Adsorption Capacity of Activated Carbon from Nypa Palm Cigarette Manufacturing Residues สภาวะที่เหมาะสมในการเตรียมและความสามารถในการดูดซับของถ่านกัมมันต์ที่ผลิตจากวัสดุเหลือใช้ในการผลิตใบจากมวนยาสูบ

Abstract

The use of Nipa Palm for producing Nipa Palm leaves for rolled tobacco or other activities resulted in a large amount of residues and caused problems in the management of the remains from Nipa Palm or residues. The objectives of this research were to produce the activated carbon from Nipa Palm’s stalk and stick residues and to study the adsorption abilities of the activated carbon. The carbonization process was determined by heat at temperature of 300-500^๐C for 30-150 minutes and activated by using the ratio of sample to Zinc (II) Chloride 1:1 at 500-700^๐C for 60-120 minutes. The results showed that the stalk residues charcoal powder which carbonized at 400^๐C for 150 minutes and activated by using the ratio of sample to Zinc (II) Chloride 1:1 at 500^๐C for 90 minutes was given the highest iodine adsorption capacity of 771.58±2.78 mg/g. Percentages of moisture content and ash content were 0.27±0.01 and 0.74±0.04 respectively. A percentage of Methylene blue adsorption capacity was 59.30±0.91. Therefore, the activated carbon obtained from stalk residues at 500^๐C for 90 minutes showed a good condition for producing activated carbon with adsorption capacity because of the highest iodine adsorption capacity which indicated the highest porous properties of activated carbon. The activated carbon showed the iodine adsorption capacity higher than 600 mg/g with percentage of moisture content and ash content were less than 8 and 6 respectively, according to the Thai Industrial Standards Institute, TISI.900-2004.