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Desulfurization process and new bimetallic sorbent system for it

机译:脱硫工艺及其新的双金属吸附剂系统

摘要

Novel sorbent systems for the desulfurization of cracked-gasoline are provided which are comprised of a bimetallic promotor on a particulate support such as that formed of zinc oxide and an inorganic or organic carrier. Such bimetallic promoters are formed of at least two metals of the group consisting of nickel, cobalt, iron, manganese, copper, zinc, molybdenum, tungsten, silver, tin, antimony and vanadium with the valence of same being reduced, preferably to zero. Processes for the production of such sorbents are provided wherein the sorbent is prepared from impregnated particulate supports or admixed to the support composite prior to particulation, drying, and calcination. Further disclosed is the use of such novel sorbents in the desulfurization of cracked-gasoline whereby there is achieved not only removal of sulfur but also an increase in the olefin retention in the desulfurized product. Such sorbents can also be utilized for the treatment of other sulfur-containing streams such as diesel fuels.
机译:提供了用于裂化汽油脱硫的新型吸附剂系统,其由颗粒载体上的双金属促进剂组成,所述载体例如由氧化锌和无机或有机载体形成。这样的双金属促进剂由镍,钴,铁,锰,铜,锌,钼,钨,银,锡,锑和钒的至少两种金属形成,其化合价降低,优选降低至零。提供了生产这种吸附剂的方法,其中所述吸附剂由浸渍的颗粒载体制备或在颗粒化,干燥和煅烧之前与所述载体复合物混合。还公开了这种新型吸附剂在裂化汽油的脱硫中的用途,由此不仅实现了硫的去除,而且还增加了在脱硫产物中烯烃的保留。此类吸附剂也可用于处理其他含硫物流,例如柴油燃料。

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