n, n -二甲基甲酰胺单级和多级萃取净化俄木斯克炼油厂延迟焦化装置轻质油

Bulletin of the Saint Petersburg State Institute of Technology (Technical University) Pub Date : 2022-01-01 DOI:10.36807/1998-9849-2022-60-86-7-10

A. V. Kameshkov

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引用次数: 0

摘要

在萃取剂与原料质量比为0.3:1、0.4:1、0.5:1的条件下，采用N,N -二甲基甲酰胺对鄂木斯克炼油厂延迟焦化轻质油进行单段萃取，并在N,N -二甲基甲酰胺与原料质量比为0.4:1、温度为40℃条件下，进行四段逆流萃取和四段逆流萃取。采用四段逆流萃取，得到的萃余液重量产率为75.1%，其中硫含量从0.733降低到0.452%，氮从1912降低到305 ppm，多环芳烃的重量从18.7降低到11%，十六烷指数从41.6提高到53.5。萃液满足在开阔水域航行的船舶的船用燃料要求

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SINGLE-STAGE AND MULTI-STAGE EXTRACTION PURIFICATION OF LIGHT GAS OIL OF THE DELAYED COKING UNIT OF PJSC GAZPROMNEFT - OMSK REFINERY WITH N,N – DIMETHYLFORMAMIDE

The results of single–stage extraction of light gas oil of delayed coking of Omsk refinery with N,N - dimethylformamide at the mass ratio of extractant to raw materials are presented 0.3:1, 0.4:1, 0.5:1, as well as four-stage countercurrent extraction and cross-current at a mass ratio of N,N - dimethylformamide to raw materials 0.4:1 and a temperature of 40 oC. With four-stage countercurrent extraction, raffinate was obtained with a yield of 75.1% by weight, in which, compared with raw materials, the sulfur content was reduced from 0.733 to 0.452% by weight, nitrogen - from 1912 to 305 ppm, the amount of polycycloarenes - from 18.7 to 11% by weight, the cetane index increased from 41.6 to 53.5 points. Raffinate meets the requirements for marine fuels for ships sailing in open waters

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Bulletin of the Saint Petersburg State Institute of Technology (Technical University)

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