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A method for mixed hydrogenation conversion of acid-containing petroleum and coker wax oil

A technology for coking wax oil and hydroconversion, which is applied in the field of mixed hydroconversion of acid-containing petroleum and coking wax oil, can solve the problem that acid-containing petroleum and coking wax oil cannot be directly processed, and achieves the effect of reducing acidity and corrosion.

Active Publication Date: 2015-08-19
PETROCHINA CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for mixed hydrogenation conversion of acid-containing petroleum and coker gas oil, which can improve the problem that the prior art cannot directly process acid-containing petroleum and coker gas oil

Method used

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  • A method for mixed hydrogenation conversion of acid-containing petroleum and coker wax oil
  • A method for mixed hydrogenation conversion of acid-containing petroleum and coker wax oil
  • A method for mixed hydrogenation conversion of acid-containing petroleum and coker wax oil

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Embodiment 1

[0050] The acid-containing petroleum is oil A (see Table 1 for its properties), and the coking wax oil is obtained from the vacuum wax oil produced by the delayed coking process using vacuum residue from Liaohe Oilfield in China (see Table 1 for its properties). Mix oil material A with coker gas oil (hereinafter referred to as CGO) obtained from Liaohe vacuum residue according to the weight ratio of 7:3, put it into the tank reactor, pressurize it to 500kPa (gauge pressure) with nitrogen, and raise the temperature from room temperature to 180° C., react for 20 minutes under high-speed shearing and stirring conditions, and obtain pretreated raw material oil after cooling down to room temperature. The raw material oil was cut through a real boiling point distillation device to separate the naphtha fraction with IBP (initial boiling point) ~ 205 ° C, and the diesel fraction with 205 ~ 360 ° C, and finally obtained heavy components (see Table 2 for their properties). The obtained ...

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Abstract

The invention relates to an acid-containing petroleum-coker gas oil mixing hydrogenation conversion method. The method comprises the following steps of mixing acid-containing petroleum and coker gas oil to obtain a pre-treated petroleum fraction, separating a naphtha fraction and a diesel oil fraction from the petroleum fraction so that heavy ingredients are obtained, carrying out a hydrogenation reaction process on the heavy ingredients to obtain an oil gas product, carrying out cooling separation on the oil gas product to obtain a liquid product and non-condensable gas, carrying out fractionation on the liquid product to obtain a gasoline fraction, a diesel oil fraction, a wax oil fraction and residual oil, feeding the non-condensable gas back to a hydrogenation reactor, feeding the residual oil back to the hydrogenation reactor, carrying out wax oil fraction hydrocracking reaction process to obtain an oil gas product, cooling the oil gas product to divide it into a liquid product and non-condensable gas, feeding the non-condensable gas back to a hydrocracking reactor, carrying out fractionation on the liquid product to obtain a gasoline fraction, a diesel oil fraction, a wax oil fraction and a heavy oil fraction, and feeding the heavy oil fraction into the hydrogenation reactor. The method realizes processing and utilization of two inferior petroleum products.

Description

technical field [0001] The invention relates to a method for mixed hydrogenation conversion of acid-containing petroleum and coker wax oil. Background technique [0002] The world's high acid value crude oil resources are very rich. Among the acidic substances in crude oil, naphthenic acid is the most important, with a high content, accounting for about 90% of the acidic substances in crude oil. When the acid value of crude oil is greater than 0.5mg KOH / g, it can cause equipment corrosion. With the continuous exploration and development of crude oil, sour crude oil has been continuously discovered and exploited, and the processing methods of this part of crude oil have gradually attracted people's attention. my country's high acid value crude oil resources are mainly distributed in Liaohe, Shengli, Xinjiang, Bohai and other places. This type of crude oil has a high acid value and severely corrodes equipment and pipelines. As a raw material for hydrocracking, it will caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/00
Inventor 任文坡李振宇杨延翔李雪静王红秋朱庆云黄格省李顶杰曲静波乔明王春娇任静郑轶丹朱雅兰卢红
Owner PETROCHINA CO LTD
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