Research On Implementing Scheme Of Oil Vapor Recovery In Petroleum Enterprise

At present, the three terms standards promulgation and implementation of oil vapor emission which was established by State Environmental Protection Administration, regulate that all petroleum enterprises of throughout country need to implement oil vapor recovery, and make the oil vapor reach standard emission. So that all petroleum enterprises need compile economical and feasible oil vapor recovery schemes and enforce its. according to the specific situations of petroleum enterprises. Under this background, basing on the general program of scheme design in the economics, the paper compiles the concrete oil vapor recovery scheme of petroleum enterprises, main including scheme background, compilation basis, key technology, technology assessment, correlation transformation, investment budget and concrete measures etc. Through study, the paper compiles the oil depot and gas station general oil recovery scheme of petroleum enterprises, and through quantitative evaluation of various oil vapor recovery technologies, the paper selects the best one, then gets the more perfect scheme's target. All this will provide reference for the every oil depots and gas stations' scheme compiling of china.Basing on the analysis oil vapor emission process in unloading oil, oil storage and collection and dispatching stage as well as analysis and comparison the every kinds oil vapor recovery technologies of at home and abroad, the paper through the grey correlation model obtains series of the evaluation indexes and corresponding weights in oil vapor recovery technology, as economic cost, treatment efficiency, social benefit, environmental benefit etc, considering from economy and environment etc angle. Then the paper gets the evaluation score of every kind of oil vapor recovery technology. At the end, the paper selects out the optimum oil vapor recovery technology. According to the compiled general scheme, the paper takes petrol china's sale enterprise of north china as research object, and compiles concrete scheme. At the same time, the paper obtains the following conclusions:Through the grey correlation evaluation method, the paper evaluates and optimizes the four kinds of oil vapor recovery technologies and obtains four kind recovery technology's priority order: Adsorption Method, Membrane Method, Condensation Method, and Absorption Method. So that, among every kinds oil vapor recovery technology, the Adsorption Method is the best one and the Membrane Method is the second one.Because the gas station distribution is more dispersion, little oil loading amount and limited site, so generally implement the first step and the second step oil vapor recovery. In order to take the safety and reach standard emission in consideration, some gas stations need implement the third step oil recovery, after the investigation and research. The membrane method is more welcomed, because the membrane method is small floor area, simple device, more high recovery efficiency, and low emission rate etc.Petrol china's sale enterprise of north china main uses the Adsorption Method of oil vapor technology when they practical implements the oil depot oil vapor recovery scheme. When they practical implements the gas station oil vapor recovery scheme, they main implements the first step and the second step oil vapor recovery technology. To some gas stations need implement the third step oil recovery, they main uses the Membrane Method oil vapor recovery technology.