adsorption space
1.A method to calculate quantitatively the adsorption volume or adsorption space of per mass of adsorbent derived from both the adsorbed molecule volume and the maximum adsorbance of a solute in an adsorption isotherm under a given experimential condition is presented firstly for a solid/liquid adsorption system of the solute in a dilute aqueous solution.This method is suitable for not only mono-layer adsorption,but also mani-layer adsorption and micelle adsorpion of surfactant constructed by hydrophile and lipophile groups.Therefore,the surface concentration of the adsorbate,CS, deduced from the adsorption volume is possessed of the meaning of true concentration,and the value of the patition coefficient of the adsorbate between solid and liquid phass,Pα, attained by the CS and the C,solution concentration of the adsorbate,can be accurate.The foregoing a set of calculations are presented for the solid-liquid adsorption systems consisted of the wool fiber and separately dodecyltrimethyl-ammonium bromide (DTAB) and hexadecyltrimethyl-ammonium bromide (CTAB) in this paper.This provides a strong basis for adsorption thermodynamic investigation of adsorbate.
2.Adsorption Reaction Space in Activated Carbon Desulfurization on the Condition of Desorbing by Water
3.DMol 3 module based on density functional theory (DFT) has been used for Ni (211) slab model to simulate monatomic step structure. Results of adsorption energy and space configurations of CH_ x (x0~4) on different active sites of the surface are discussed. LST/QST method has been carried out on searching for reaction pathways, transition states and corresponding reaction data of all dissociation steps of CH_ x (x1~4).
5.According to the datas dynamic adsorption model and the technical requirement, the flow path of removing carbon dioxide from pyrolysis gas produced from methonal by PSA was designed to calculate the size of adsorber and admission space of adsorbents and to determine the reasonable operation chart. The results from factory showed that the purity of product was above 99.99% and the rate of recovery was above 92%. The economic effectiveness was remarkable.
