Kinetic studies of potassium permanganate adsorption by activated carbon and its ability as ethylene oxidation material

2nd International Conference on Biomass: Toward Sustainable Biomass Utilization for Industrial and Energy Applications

生物科学;工业技术;能源学

Aprilliani, F.^1 ; Warsiki, E.^2 ; Iskandar, A.^2

Post Graduate Program of Agroindustrial Technology, Bogor Agricultural University, Bogor, Indonesia^1

Department of Agroindustrial Technology, Faculty of Agricultural Engineering and Technology, Bogor Agricultural University, Bogor, Indonesia^2

关键词: Adsorption by activated carbon;    Commercial activated carbons;    Distribution process;    Experimental conditions;    Horticultural products;    Potassium permanganate;    Second order kinetics;    Second-order equation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/141/1/012003/pdf
DOI  :  10.1088/1755-1315/141/1/012003

来源: IOP

【 摘 要 】

Generally, ethylene production in many horticultural products has been seen to be detrimental to the quality during storage and distribution process. For this reason, removing ethylene from storage or distribution atmosphere is needed to maintain the quality. One of the technologies that can be applied is the use of potassium permanganate (KMnO4). KMnO4is an active compound that can be used as an oxidizing agent on ethylene removal process. KMnO4is not recommended for direct used application. As the result, additional material is required to impregnate the potassium permanganate. The inert materials used are commercial activated carbon. Activated carbon is chosen because it has high surface area. The purpose of this research is to determine kinetics adsorption and oxidation model of ethylene removal material. The kinetics adsorption was determined using the pseudo-first and second-order kinetic models. The data on adsorption process show that the second-order equation is more suitable to express the adsorption process on this research. The analyzing of the ethylene oxidation capacity increased with time until it reaches an optimal value. The ethylene oxidation rate is able to be estimated by the formula r = 0.1967 [C2H4]0.99[KMnO4]0.01; MSE = 0.44 %. The actual and estimation data of ethylene oxidation show that the model is fitted to describe the actual ethylene oxidation under same experimental conditions.