Effect of temperature on iodine value and total carbon contain in bio-char produced from soybean stalk in continuous feed reactor

Abstract

Study of effect of temperature on iodine value of bio-char and total carbon contain\rin bio-char was studied in continuous feed reactor with 1 kg/hr feeding rate. The temperature on\riodine value of bio-char and total carbon contain as taken at different temperature of 450, 500, 550\rand 600ºC, respectively in both condition. The yield of the activated carbon in bio-char was\rdecreased 38.1 to 37.54 per cent with the increase in pyrolysis temperature 450 to 550ºC. However,\rthe iodine adsorption capacity of the prepared activated carbon increased from 167.7 to 288.78 mg/\rg with an increase temperature 450 to 600°C in condition 1. In condition 2 the yield of activated\rcarbon was decreased 37.02 to 26.66 per cent with the increase in pyrolysis temperature 500 to\r600°C. However, the iodine adsorption capacity of the prepared char decreased 214.67 to 154.158\rmg/g with a temperature 450 to 600°C. Based on comprehensive consideration of yield and iodine\radsorption capacity of the char prepared, 600 and 500°C was chosen for optimum pyrolysis\rtemperature in condition 1 and condition 2, respectively.