IMPROVING THE QUALITY OF CATALYTIC CRACKING GASOLINE

In work was carried out the literary review of technology on receiving high-octane gasoline which conforms to the Euro-5 standard according to ecological requirements. Methods on removal of sulfur-containing compounds from oil products are given. It was given a description of one of the installations of hydrotreating of gasoline of catalytic cracking used in the territory of Russia, and also the technologies developed abroad are considered. The process of catalytic cracking is specific and depends on several technological factors, such as temperature, type of catalyst and reactor, as well as from the time of contact. The characteristic of the catalysts used on installation as contact device is submitted. This article discusses the original technology for hydrotreatment of catalytic cracking gasoline. Unlike straight-run gasoline sulfur removal from gasoline of catalytic cracking is complex contradictory character, since the desired result in obtaining high-octane gasoline with minimal sulfur content. Given this complexity, and the difficulty in the design and selection of catalysts, the determination of process parameters and application of the technological scheme, we developed a large number of settings for the process of hydroforming products of secondary oil refining processes. Analyzing the technology of carrying out this process, it was found that the gasoline produced by catalytic cracking after heating in the heat exchanger and the furnace is sent to a reactor where Hydrotreating a shallow and selective hydrogenation of olefins on stationary two-layer catalyst. Prospects and advantages of application of this process are reflected.