Method for washing inorganic sulfur in hydrogenated diesel

A technology of hydrogen diesel and inorganic sulfur, which is applied in the field of cleaning inorganic sulfur in hydrogenated diesel oil, can solve the problems that the oil washing effect has a great influence on the test, the test results have a great influence, and the inorganic sulfur cannot be effectively removed, so as to avoid inaccuracy , good repeatability, cheap and easy-to-obtain effect

Inactive Publication Date: 2019-10-29
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The oil washing effect has a great influence on the test. Inorganic sulfur cannot be effectively removed, and the sulfur content in the hydrogenated diesel oil will be high, especially now that the sulfur content requirement is very low. Impurity will greatly affect the test results
There is currently no standard cleaning method for laboratory hydrogenated diesel prior to measurement of sulfur content

Method used

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  • Method for washing inorganic sulfur in hydrogenated diesel

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The laboratory prepared Ni-W / Beta-USY-Al with Beta-USY molecular sieve as the acidic component 2 o 3 Hydrogenation and upgrading catalysts, using the combined loading method of refining agent-modifying agent, are evaluated in two stages in series on a high-pressure fixed-bed reaction device, in which the refining agent is industrial Ni-Mo / Al 2 o 3 The loading amount of the catalyst is 100mL, and the loading amount of the modifier is 92.5mL. The raw material oil for evaluation is FCC diesel oil of Sinopec Qingdao Petrochemical Co., Ltd., the evaluation condition pressure is 10.0MPa, and the volume space velocity of refined product is 1.25h -1 , modifier volume space velocity 1.35h -1 , the volume ratio of hydrogen to oil is 700:1, the reaction temperature of refining agent is 350°C, and the reaction temperature of modifier is 380°C.

[0029] The hydrogenated product is collected, and part of the product is cleaned by the method of the present invention. Sulfur conte...

Embodiment 2

[0045] The first solution in Example 1 was adjusted to 15 wt%.

[0046] Change the volume ratio of the first solution to the hydrogenated diesel in Example 1 to 15:1.

[0047] Others are the same as embodiment 1.

Embodiment 3

[0049] The first solution in Example 1 was adjusted to 5 wt%.

[0050] Change the volume ratio of the first solution to the hydrogenated diesel in Example 1 to 30:1.

[0051] Others are the same as embodiment 1.

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Abstract

The invention provides a method for washing inorganic sulfur in hydrogenated diesel. The method includes the following steps that (1) a first solution and a second solution are obtained, wherein the first solution is a sodium sulphide solution or a sodium thiosulfate solution with the concentration being 5 wt % to 15 wt %, and the second solution is a sodium hydroxide solution with the concentration being 8 wt % to 15 wt %; (2) the hydrogenated diesel is washed by the first solution up to 3 times, and alkaline salt washed hydrogenated diesel is obtained; (3) the alkaline salt washed hydrogenated diesel is washed by the second solution up to 5 times, and alkaline washed hydrogenated diesel is obtained; and (4) the alkaline washed hydrogenated diesel is washed by water up to 8 times, and water washed hydrogenated diesel is obtained.

Description

technical field [0001] The application provides a method for cleaning inorganic sulfur in hydrogenated diesel oil, in particular to the cleaning of a small amount of inorganic sulfur in hydrogenated diesel oil. Background technique [0002] Petroleum is a valuable energy source that is closely related to social development and human life, but a large amount of petroleum consumption has brought about serious environmental pollution problems. In the context of increasingly stringent environmental protection requirements, the quality requirements of automotive diesel are getting higher and higher. On June 8, 2013, the National V standard for vehicle diesel was officially announced, indicating the official arrival of the National V era for diesel. Diesel hydrodesulfurization and denitrification has become the main quality improvement method for major refineries. Diesel mainly contains organic sulfur, and the purpose of hydrogenation is to convert organic sulfur into inorganic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/12
CPCC10G53/12
Inventor 朱红伟孙冰姜杰石宁
Owner CHINA PETROLEUM & CHEM CORP
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