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Hydrogenation processing method for f-t synthetic oil

A technology of hydrogenation treatment and catabolism synthesis, which is applied in the fields of hydrogenation treatment process, hydrocarbon oil treatment, petroleum industry, etc., which can solve problems such as complex reaction process and achieve the effect of flexible product scheme

Active Publication Date: 2008-05-14
SYNFUELS CHINA TECH CO LTD
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AI Technical Summary

Problems solved by technology

This method is aimed at producing gasoline, and the reaction process is relatively complicated.

Method used

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  • Hydrogenation processing method for f-t synthetic oil
  • Hydrogenation processing method for f-t synthetic oil
  • Hydrogenation processing method for f-t synthetic oil

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Experimental program
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Embodiment 1、2、3、4

[0053] Embodiment 1, 2, 3 and 4 adopt figure 1 and 2 The process flow, the properties of the raw materials used are shown in Table 1. The high activity hydrotreating catalyst H-ACT1 used was prepared according to the process described in Example 6 of CN1339985A; H-ACT2 was prepared according to the process described in Example 7 of CN1339985A. The operating conditions of each reactor of Embodiment 1 and 2 and the properties of the resulting product are shown in Table 3, and the operating conditions of each reactor of Examples 3 and 4 and the properties of the resulting product are shown in Table 4.

[0054] Table 1 Raw Oil Properties

[0055] Raw oil

Fischer-Tropsch synthetic oil

Density / g·m -3

0.8112

Distillation range / ℃

40～650

Acidity / mgKOH (100mL) -1

856

Oxygen content, %

2.5

Diene, %

11.25

[0056] Table 2 Main properties of highly active hydrotreating catalysts

[0057] c...

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Abstract

The invention discloses a hydrogenation processing method of Fischer-Tropsch synthetic oil, particularly, the method of the invention is that raw naphtha cut, raw diesel oil cut, mixed cut of raw naphtha and raw diesel oil or Fischer-Tropsch synthetic full cut oil in liquid-phase products acquired from Fischer-Tropsch synthetic process are treated by hydrogenation processing. The method comprises steps that raw material of the Fischer-Tropsch synthetic oil goes through at least two sections of hydrogenation processing catalyst bed layers with different activation for hydrogenation processing and then tail oil acquired from separation after hydrogenation processing is subjected to hydrogen cracking and then hydrogenation processing products and hydrogen cracking products are sent into different fractionating systems for separating. The method of the invention can acquire high-quality clean diesel oil with cetane value higher than 75 and excessively low-freezing clean oil with solidifying point lower than 50 DEG C below zero, meanwhile, the naphtha acquired is high-quality raw material used for producing ethylene by steam cracking.

Description

technical field [0001] The present invention relates to a Fischer-Tropsch synthetic oil hydrotreating process, in particular to the Fischer-Tropsch synthetic whole distillate oil or the crude naphtha fraction and gas oil fraction in the liquid phase product obtained in the Fischer-Tropsch synthesis process , The hydrotreating process of processing the mixed distillate of crude naphtha and gas oil into high-quality motor fuel and high-quality chemical raw materials. Background technique [0002] Fossil fuels mainly include coal and petroleum. From a global perspective, the reserves of coal far exceed the reserves of petroleum. Therefore, how to replace petroleum with coal is an important topic in the energy field. The important process for coal to replace petroleum is the liquefaction process of coal and the further processing process of coal liquefaction products. [0003] According to different routes of chemical processing, coal liquefaction can be divided into two categ...

Claims

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Application Information

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IPC IPC(8): C10G65/12
Inventor 任杰相宏伟曹立仁孙予罕李永旺
Owner SYNFUELS CHINA TECH CO LTD
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