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Method for removing sulfides in light oil

A light oil and sulfide technology, which is applied in the treatment of hydrocarbon oil, petroleum industry, and multi-stage series refining process treatment, etc., can solve the problem of low desulfurization precision, complicated light oil removal steps, and ineffective removal of many sulfide and other problems, to achieve the effect of low energy consumption and low cost

Active Publication Date: 2016-06-01
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems in the prior art such as cumbersome light oil removal steps, a single desulfurizer cannot effectively remove various sulfides in light oil, and low desulfurization precision, and further provides a light oil The removal method of medium sulfide

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  • Method for removing sulfides in light oil
  • Method for removing sulfides in light oil
  • Method for removing sulfides in light oil

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1, the removal of sulfide in naphtha:

[0036] combine figure 1 , the removal of sulfide in naphtha, comprises the steps:

[0037] 1) At 5°C and 0.3MPa, the naphtha in the raw material tank 1 is fed for 1 hour by adopting the bottom-in and top-out method. -1 The volume space velocity is contacted with the magnetic iron oxide placed in the reactor I (in this embodiment, the reactor I is specifically a fixed bed reactor) to perform primary desulfurization and remove the H in the naphtha. 2 S, obtained by removing H 2 The naphtha of S, wherein the preparation method of magnetic iron oxide in the present embodiment is the iron oxide black Fe of 500g 3 o 4 In a muffle furnace, it was calcined at 500°C for 2 hours, and then prepared into a spherical shape. The magnetic iron oxide obtained by the above method has the following characteristics: reddish-brown spherical particles, the composition is Fe 21.333 o 32 , the strength is 30N / cm, and the specific surfa...

Embodiment 2

[0043] Embodiment 2, the removal of sulfide in kerosene:

[0044] The removal of sulfide in kerosene comprises the following steps:

[0045] 1) At 90°C and 3MPa, take the method of bottom in and top out, and kerosene for 10h -1 The volume space velocity is contacted with the magnetic iron oxide placed in reactor I (in this embodiment, reactor I is specifically a fluidized bed reactor) to perform primary desulfurization and remove H in kerosene. 2 S, obtained by removing H 2 The kerosene of S, wherein the preparation method of magnetic iron oxide in the present embodiment is the iron oxide black Fe of 500g 3 o 4 In a muffle furnace, it was calcined at 350°C for 4.5h, and then prepared into a spherical shape. The magnetic iron oxide obtained by the above method has the following characteristics: reddish-brown spherical particles, the composition is Fe 21.333 o 32 , the strength is 50N / cm, and the specific surface area is 200m 2 / g,H 2 S sulfur capacity is 50%; at the sam...

Embodiment 3

[0050] Embodiment 3, the removal of sulfide in gasoline:

[0051] The removal of sulfur compounds in gasoline includes the following steps:

[0052] 1) At 45°C and 5MPa, take the method of bottom-in and top-out, and put the gasoline in 5h -1 The volume space velocity is contacted with the magnetic iron oxide placed in reactor I (in this embodiment, reactor I is specifically a fixed bed reactor) to perform primary desulfurization and remove H in gasoline. 2 S, obtained by removing H 2 The gasoline of S, wherein the preparation method of magnetic iron oxide in the present embodiment is the iron oxide black Fe of 500g 3 o 4 In a muffle furnace, it was calcined at 250°C for 5 hours, and then prepared into a spherical shape. The magnetic iron oxide obtained by the above method has the following characteristics: reddish-brown spherical particles, the composition is Fe 21.333 o 32 , the strength is 45N / cm, and the specific surface area is 210m 2 / g,H 2 S sulfur capacity is 43...

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Abstract

The invention discloses a method for removing sulfides in light oil. The method comprises the following steps that 1, on the condition that the temperature ranges from minus 5 DEG C to 90 DEG C and the pressure ranges from 0.1 MPa to 5 MPa, the light oil makes contact with magnetic iron oxide, first-stage desulfurization is conducted, inorganic sulfides in the light oil are removed, and the light oil with the inorganic sulfides removed is obtained; 2, on the condition that the temperature ranges from minus 5 DEG C to 90 DEG C and the pressure ranges from 0.1 MPa to 5 MPa, the light oil with the inorganic sulfides removed makes contact with activated carbon loaded with copper, second-stage desulfurization is conducted, organic sulfides in the light oil are removed, and the light oil with the organic sulfides removed is obtained, that is to say, the light oil with the sulfides removed is obtained. By means of the removing method, various sulfides in the light oil are effectively removed, the total sulfur content of the light oil with the sulfides removed does not exceed the national standard or the industrial standard, and the method has the advantages of being capable of achieving normal temperature operation, large in treatment capacity, free of waste alkali, low in energy consumption, simple in technology, easy and convenient to operate and the like.

Description

technical field [0001] The invention belongs to the technical field of light oil desulfurization, and in particular relates to a method for removing sulfides in light oil. Background technique [0002] Light oil generally refers to hydrocarbon mixtures with a boiling point range of about 30-350°C, and light oil contains H 2 Harmful impurities such as S, mercaptan (RSH), sulfide (RSH), and carbon disulfide not only affect the quality of oil products, but also cause corrosion of equipment and pipelines, emit unpleasant odors, and pollute the environment. With the increasingly stringent environmental protection regulations, the quality requirements for light oil are getting higher and higher. How to effectively desulfurize the inorganic sulfides and organic sulfides in light oil has become one of the problems to be solved worldwide. . At present, the methods for removing sulfides in light oil mainly include catalytic hydrodesulfurization, catalytic cracking desulfurization, o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/02
CPCC10G53/02C10G2300/202
Inventor 王春艳李新樊俐
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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