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Hydrogenation processing method for f-t synthetic oil

A technology of hydrotreating and torrefaction synthesis, which is applied in hydrotreating process, hydrocarbon oil treatment, petroleum industry, etc., can solve the problems of complex reaction process, reduce the design capacity, and ensure the effect of long-term operation.

Inactive Publication Date: 2008-05-14
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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
Comparison scheme
Effect test

Embodiment 1、2、3、4

[0054] Embodiment 1, 2, 3 and 4 adopt figure 1 The process flow, the properties of the raw materials used are shown in Table 1. The operating conditions of each reactor of embodiment 1, 2 and the properties of the resulting product are shown in Table 2, and the operating conditions of each reactor of embodiment 3, 42 and the properties of the resulting product are shown in Table 3.

[0055] Table 1 Raw Oil Properties

[0056] Raw oil

light component

heavy component

Density / g·m -3

0.7519

0.8303

Distillation range / ℃

40～180

181～650

Bromine value / gBr (100mL) -1

45.12

Acid value / mgKOH·g -1

0.85

Acidity / mgKOH (100mL) -1

1200

Oxygen content, %

5.3

0.6

Diene, %

22.24

[0057] Table 2 embodiment 1,2 the operating conditions of each reactor and the character of gained product

[0058]

[0059] Table 3 embodiment 3,4 the operating condi...

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Abstract

The invention discloses a hydrogenation processing method of Fischer-Tropsch synthetic oil and the method is that the Fischer-Tropsch synthetic oil is divided into lightweight cut and heavyweight cut which are mixed with synthetic wax after prerefining and then are subjected to hydrogenation processing; the products of the hydrogenation processing enter a first high-pressure separator and the liquid products separated enter a fractionating system through a low-pressure separator; the separated hydrogen-rich gas is mixed with heavy component separated from the fractionating system and then is subjected to hydrogen cracking; cracking products enter a second high-pressure separator and the separated liquid products enter the same low-pressure separator and fractionating system with the hydrogenation processing; the separated hydrogen-rich gas is pressurized by a circulating hydrogen compressor and is mixed with new supplementary hydrogen and then enters a hydrogen preprocessing reactor. Cetane value of diesel oil acquired is higher than 70, solidifying point is below 0 DEG C and the content of sulfur and nitrogen is extremely low, meanwhile, naphtha acquired is high-quality raw material used for producing ethylene by steam cracking.

Description

technical field [0001] The invention relates to a method for hydrotreating Fischer-Tropsch synthetic oil, in particular to processing the light distillate oil and heavy distillate oil of Fischer-Tropsch synthetic oil, as well as synthetic wax, into high-quality motor fuel and high-quality chemical raw materials Hydroprocessing method. 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 categories: direct liquefaction and indirect liquefaction. Coal direct liquefaction is the direct conversion of coal into liquid products...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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