ADSORPTION OF SYNTHESIZED NICKEL COMPOUNDS FROM MODEL HYDROCARBON SOLUTIONS ON IRON-ORE CONCENTRATE AND ASH-SLAG MATERIAL

Abstract

Adsorption of synthesized nickel compounds from standardized test solutions of hydrocarbon(naphthenate and nickel acetylacetonate (II)) has been studied in hexane medium.Synthesized nickel compounds are present in heavy oils, oil products and heavy oilsludge. We have studied the possibility for using industrial wastes (iron-ore concentrateand bottom ash) for adsorption concentration of nickel compounds from standardized testsolutions of hydrocarbon. We have also analyzed adsorption isotherm of nickel from standardized hydrocarbon systems based on iron-ore concentrate and bottom ash. We have calculated the degree of nickel adsorption from standardized hydrocarbon systems for studied adsorbents. Study results can be used for development of the technology of thermal-adsorption demetallization of oil products and heavy oil sludge that would contributeto the efficiency of oil refining processes (the increase of refinery yield, reduction of equipment corrosion and reduction in deactivation of cracking catalysts) and improvement of the quality of oil products. Bibl. 12, Fig. 2.