DESULFURIZATION AND NEW METHOD OF DESULFURISATION

FIELD: technological processes; chemistry. ^ SUBSTANCE: method of composition preparation is described, which includes: (a) adulteration of the following: 1) liquid, 2) zinc-containing compound, 3) silica-containing material, 4) alumina and 5) promoter for preparation of its mixture; where specified liquid is selected from the group that consists of water, ethanol, acetone and combination of any two and more specified compounds, and where specified promoter contains metal selected from the group that contains nickel, cobalt, iron, manganese, copper, zinc, molybdenum, tungsten, silver, tin, antimony, vanadium, gold, platinum, ruthenium, iridium, chrome, palladium, titanium, zirconium, rhodium, rhenium, and also combination of any two or more of them; (b) drying of specified mixture for preparation of dried mixture; (c) baking of specified dried mixture for preparation of baked mixture; (d) reduction of specified baked mixture with suitable reducing agent under suitable conditions for preparation of composition that contains promoter with lower valency; and (e) regeneration of specified composition. Method of composition preparation (version) is also described, which includes introduction of two promoters, as well as compositions prepared by specified methods. Method of sulfur removal from carbohydrate flow is described, which includes the following: (a) contact of specified carbohydrate flow with composition that has been prepared by the method according to any of previous points, in desulfurisation zone under conditions, under which at least partially desulfurised carbohydrate flow and sulfurised composition are formed; (b) isolation of specified at least partially desulfurised carbohydrate flow from specified sulfurised composition with preparation of isolated desulfurised carbohydrate flow and isolated sulfurised composition; (c) regeneration of at least part of specified isolated sulfurised composition in zone of regeneration to remove at least part of sulfur contained in it and/or on it with preparation of regenerated composition; (d) reduction of specified regenerated composition in reduction zone to prepare reduced composition, which contains such amount of promoter with lower valency that influences sulfur removal from sulfur-containing carbohydrate flow during contact with it; (e) return of at least part of reduced composition to desulfurisation zone. Cracked gasoline or diesel fuel prepared as a result of above mentioned method application is desc