| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to field of oil processing, in particular CO oxidation catalysts, used as additive to cracking catalyst for oxidising oxygen into carbon dioxide in process of cracking catalyst regeneration. Claimed catalyst for CO oxidation in process of cracking catalyst regeneration contains manganese compounds, aluminium oxide and natural bentonite clay, with the following component content, wt %: manganese in terms of MnO2 6-20, bentonite clay - 24-44, Al2O3 - the remaining part, and has microspherical form of particles with average size 70 mc, wear resistance 92-97%, bulk density 0.7-0.8 g/cm3. Described is method of preparing catalyst for CO oxidation in process of cracking catalyst regeneration, which includes mixing manganese (IV) hydroxide, obtained by precipitation of manganese nitrate from water solution with ammonium, with composition, which consists of aluminium hydroxide and bentonite clay, preliminarily processed with concentrated nitric acid (12.78 mole/l), composition drying and burning, which is carried out step by step: at temperature 500C during 4-6 hours, and then at temperature 950-970C during 4 hours. ^ EFFECT: increase of catalyst activity and wear-resistance. ^ 2 cl, 1 tbl, 12 ex |
