Method for preparing catalyst for catalytic oxidation of ozone from waste catalyst produced during oil refining and catalyst prepared with method and used for catalytic oxidation of ozone

• Main Authors: ZHAO TONG, CAO WENBIN, GENG TIANJIA, WU GUANLONG, YIN SHENGKUI, ZHAO YUZHANG, CAO HAIYAN, CAO SONG, CAO PUXUAN
• Format: Patent
• Language: Chinese; English
• Published: 27.07.2016
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention provides a method for preparing a catalyst for catalytic oxidation of ozone from a waste catalyst produced during oil refining and the catalyst prepared with the method and used for catalytic oxidation of ozone. The method comprises steps as follows: (1) calcination; (2) acid dissolution; (3) alkali dissolution; (4) water washing; (5) activation; (6) drying and grinding; (7) granulation. The catalyst is prepared from components in percentage by mass as follows: 2%-14% of an active component, 30%-80% of a regenerated and activated waste catalyst, 2%-20% of a pore-enlarging agent, 1%-10% of a gelatinizing agent and 5%-30% of aluminum oxide powder, wherein the total mass percentage of the components is 100%, and the active component is one or more of MnO2, Co3O4, Fe3O4, Fe2O3, CoO, Sb2O3 and SnO2. A conventional preparation method is used for obtaining the ozone catalyst, pollution of a waste agent to the environment is avoided, the quantity of raw materials for preparation of the catalyst is reduc