SU48206A1 - Catalyst Preparation Method - Google Patents

Description

The methods of hydrogenation purification of hydrocarbon mixtures described in the scientific and patent literature are based on the fact that in the presence of special catalysts and - hydrogen decomposition of sulfur compounds occurs with the formation of hydrogen sulfide and saturation of unsaturated compounds with hydrogen. The resulting, under certain conditions, products contain an insignificant amount of sulfur and are resistant to resin formation both during storage and in the process of burning fuel in engines.

Compounds of elements of the 6th group usually serve as catalysts for carrying out this kind of process, but compounds of elements of other groups can also be used. Thus, for example, in patent No. 17448 of December 18, 1928, there is an indication of the use of catalysts COS, FeS, ZnS, NiS, MnS both directly and with additives to them oxide compounds Wo, Cr, etc .; Patent No. 363711 indicates catalysts of 4-7 groups (oxides and their compounds); in Amer. pat No. 1989388. Universal Oil Product K ° indicates that desulfurization is carried out on metal chromates; in Amer. pat No. 1905353 indicates that the SG / O gel obtained from chromium nitrate solution is used as a catalyst by waiting for NHt OH.

Wielbur, Lazier and Vaughen (Pan, Chem. Soc. 54, 3080, 1932) used to hydrogenate ethylene as a Cg3O3 catalyst, pre-passing hydrogen through it at 400. Despite the availability of literature data on the use of chromium hydroxide as a catalyst for hydrogenation purification, there is no indication anywhere in the literature that it is necessary to pretreat chromium hydroxide under special conditions in order to obtain a highly active and poison-resistant catalyst.

The inventors have found that a non-all gel is a highly active and poison-resistant catalyst.

As a result of systematic work on the desulfurization and stabilization by the method of hydrogenation of distillates rich in sulfurous and unsaturated compounds (Weimarn and Gdov shale gasolines, Cheremkhovsky gasolines, Ishimbayevo gasoline and kerosene, vapor-phase and liquid-phase gasoline, gasoline craters, by the artists, as a theme, the author, and the masters), by the artists, as a theme, the artist, the artists, and the masters of the artwork groups, the author of the artwork of the artists, and the vapor-liquid and liquid-phase cracking patterns by the artists, as the theme by the artists, the author, and the masters. chromium that ukazinn | 1e pfejwe destillat already at