Adsorption Of Phenol Adsorption - Catalyst And Dry Adsorption Of Phenol By Catalytic Oxidation Behavior Research

Phenol is a kind of chemical component that can be commonly observed in industrial effluent. There are wide sources of phenol and huge amount of its discharge. Besides it is considered a troublesome pollutant that arouses serious environment problem. There are various methods regarding phenolic wastewater treatment. As a relatively new organic waste water treatment method among all, Dry catalytic oxidation method is done upon the usage of Carrier adsorbent to accomplish the first process of concentrating the organic substances in water. Then catalyst on load and Carrier adsorbent are demanded when catalytic oxidation the organic substance of the first step. This program aims to produce the adsorption catalyst and then further discuss the effect of adsorption and catalysis as it is to phenol.Topic selection of strong adsorptive capacity of activated carbon as carrier, on which the supported transition metal oxide into adsorption catalyst,。The research also study into the effect considering adsorption of phenol and Dry catalytic oxidation under changing circumstances (different Metal bear capacity, different transition metal oxides and adsorption catalyst of different carrier particle size). The research was implemented with three detailed part as follow.(1)A kind of activated carbon was tested as carrier, adsorptive property of which turned out to be the best as opposed the rest two activated carbon choices. Based on such carrier, diversified adsorption catalyst were made when loaded with transition metal oxide catalysts as Cu、Ni、Ce、Co、Fe. And the catalyst was characterized. Via characterization of catalyst, the produced adsorption catalyst enjoy the relatively same specific surface area and pore volume.(2). In a circumstances that Carrier particle size decrease under80mesh, its adsorption catalyst will implement a greater adsorption capacity on phenol, as the carrier of carbon’s particle diameter decreases in length. However, such capacity stable till the particle diameter decreases to80-120mesh. Contrary to the adsorption catalyst, Metal bear load on the adsorption catalyst contribute little to the adsorption capacity of phenol during the reaction process, (3)This part mainly devoted its concentration on the effect considering Dry catalytic oxidation of phenol under circumstances of different transition metal oxide catalysts and different Metal bear capacity. Result indicates that when copper base catalyst metal bear capacity added from2%to5%, the beginning reaction temperature and DTG peak decrease to15℃-25℃simultaneously, a stronger Catalytic oxidation performance as it indicates. When its bear capacity increases to10%, changes of the catalytic oxidation performance is unobvious compared with the5%situation. Therefore, a5%copper base catalyst metal bear capacity appeared to be better. Other transition metal (e.g. Cu、Ce、Co、Ni、Fe) oxide catalysts made of adsorption describe a different level of catalysis on phenol. Among them, Cu and Ce is experimented with a relatively better catalytic oxidation performance.(4) Experiment with the intrinsic reaction kinetics for the foundation, set up more than five kinds of transition metal oxides catalysts for catalytic oxidation of phenol under the condition of dynamic mathematical models, and according to the kinetic model the phenol catalytic oxidation kinetic parameters. Phenol catalytic oxidation activation energy for30-38KJ/mol. In the copper base catalyst under catalytic conditions, phenol oxidation process and the apparent activation energy minimum, for30.43KJ/mol, description of copper based catalyst for phenol has the best catalytic effect.