Absorption Effect Of Membrane Separation Oil Vapor Recovery Installation

A part of the oil gas will escape in the refined oil storage, loading and unloading aspects, lead to oil losses, reduced quality and air pollution, therefore, to promote the use of oil and gas recovery technology be imperative. Luoyang branch in1990built a set of400m3/h of low-temperature the gasoline absorption of technology, in order to control the gas diffusion during the light hydrocarbons production and the transformation. Luoyang branch in2000, changed the original process, cold diesel oil absorption process is the new choice. With the rising of annual processing volume, the amount of light oil products factory the cold diesel oil and gas recovery unit can’t meet the production requirements. So Luoyang branch in2008began to add two sets of membrane separation process of oil and gas recovery unit that including880m3/h light oil gas recovery unit and250m3/h benzene recovery unit. This device run started on February28in2011, and put into use after the detection of emission gas to meet the relevant standards.Based on the oil and gas composition, absorption factor method to calculate the absorption rate. By changing the proper pressure of absorption tower, and calculates the absorption rate, and finds the relationship between the benefits and absorption rate, thus determining the appropriate operating pressure, and the unit operation benefit of estimation. Membrane separation technology of oil and gas recovery unit in the summer often chain stop because absorption agent temperature is too high, at the same time, absorption effect have also been affected. According to the actual situation proposed increase heat exchanger advice, cooling medium in circulating water. this paper calculate and determine the appropriate heat exchanger type and circulating water flow.Luoyang petrochemical improves the refining capacity from the current8million tons/year capacity to18million tons/year in The "Twelfth Five-Year plan". The throughput of two sets of membrane separation oil and gas recovery unit is designed according to produce oil and gas quantity of manufactured10million tons every year. This paper accounting can meet the production requirements by changing the existing production process conditions and increase the membrane module.