TY - JOUR A2 - Aprea, Ciro AU - Juma, Geni AU - Machunda, Revocatus AU - Pogrebnaya, Tatiana PY - 2020 DA - 2020/03/01 TI - Performance of Sweet Potato’s Leaf-Derived Activated Carbon for Hydrogen Sulphide Removal from Biogas SP - 9121085 VL - 2020 AB - In this study, sweet potato leaf activated carbon (SpLAC) was prepared by the chemical activation method using KOH and applied as an adsorbent for H2S removal from biogas. The study focused on the understanding of the effect of carbonization temperature (
T
c
), varying KOH : C activation ratio, flow rate (FR) of biogas, and mass of SpLAC on sample adsorption capacity. The BET analysis was performed for both fresh and spent activated carbons as well as for carbonized samples, which were not activated; also, the activated carbon was characterized by XRF and CHNS techniques. The results showed that removal efficiency (RE) of the SpLAC increased with increase carbonization temperature from 600 to 800°C and the mass of sorbent from 0.4 g to 1.0 g. The optimal test conditions were determined: 1.0 g of sorbent with a KOH : C ratio of 1 : 1,
T
c
=
800
°C, and
FR
=
0.02
m3/h which resulted in a sorption capacity of about 3.7 g S/100 g of the SpLAC. Our findings corroborated that H2S removal was contributed not only by the adsorption process with the pore available but also by the presence of iron in the sample that reacted with H2S. Therefore, upon successful H2吸附,SpLAC建议作为一个可行的或bent for H2S removal from biogas. SN - 2356-735X UR - https://doi.org/10.1155/2020/9121085 DO - 10.1155/2020/9121085 JF - Journal of Energy PB - Hindawi KW - ER -