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Oil-soluble desulfurizer, and preparation and application thereof

A desulfurizer, oil-soluble technology, applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of downstream crude oil refining equipment damage, poor desulfurization efficiency, poor oil-soluble performance of desulfurizers, etc., to achieve excellent desulfurization effect, reduce sulfurization Hydrogen concentration, the effect of protecting the environment of the oil area

Active Publication Date: 2012-12-12
SHAANXI URSTAR ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these desulfurizers have poor oil solubility, poor desulfurization efficiency for oil wells with low water content, and it is difficult to continuously absorb hydrogen sulfide gas along with crude oil migration, causing damage to downstream crude oil refining equipment

Method used

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  • Oil-soluble desulfurizer, and preparation and application thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0020] An oil-soluble desulfurizer, the composition of which is: pure benzene with a volume fraction of 50%, ethanol with a volume fraction of 30% and diethanolamine with a volume fraction of 20%.

[0021] Its preparation method comprises the following steps:

[0022] Step 1: Add 50mL of pure benzene into a beaker, then put 30mL of ethanol into a dosing funnel, keep the temperature at 30°C in a water bath heating pot, and add ethanol dropwise into the beaker at a constant speed for half an hour;

[0023] Step 2, after the drop is complete, move the beaker to a water bath shaker to keep the water temperature at 30°C until the ethanol and pure benzene are completely dissolved and reacted;

[0024] Step 3, put the reacted mixed solution into the refrigerator, seal and cool down, and keep the temperature at 4°C for 24 hours;

[0025] Step 4, take out the cooled mixed liquid, bring its temperature back to room temperature, heat it in a water bath, keep the liquid temperature at 35...

Embodiment 2

[0030] An oil-soluble desulfurizer, the composition of which is: pure benzene with a volume fraction of 70%, ethanol with a volume fraction of 10% and diethanolamine with a volume fraction of 20%.

[0031] Its preparation method comprises the following steps:

[0032] Step 1: Add 70mL of pure benzene into a beaker, then put 10mL of ethanol into a dosing funnel, keep the temperature at 20°C in a water bath heating pot, and add ethanol dropwise into the beaker at a constant speed for half an hour;

[0033] Step 2, after the drop is complete, move the beaker to a water bath shaker to keep the water temperature at 30°C until the ethanol and pure benzene are completely dissolved and reacted;

[0034] Step 3, put the reacted mixed solution into the refrigerator, seal and cool down, and keep the temperature at 4°C for 24 hours;

[0035] Step 4, take out the cooled mixed solution, bring its temperature back to room temperature, heat it in a water bath, keep the liquid temperature at ...

Embodiment 3

[0040] An oil-soluble desulfurizer, the composition of which is: pure benzene with a volume fraction of 55%, ethanol with a volume fraction of 15% and diethanolamine with a volume fraction of 30%.

[0041] Its preparation method comprises the following steps:

[0042] Step 1: Add 55mL of pure benzene into a beaker, then put 15mL of ethanol into a dosing funnel, keep the temperature at 25°C in a water bath heating pot, and add ethanol dropwise into the beaker at a constant speed for half an hour;

[0043] Step 2, after the drop is complete, move the beaker to a water bath shaker to keep the water temperature at 30°C until the ethanol and pure benzene are completely dissolved and reacted;

[0044] Step 3, put the reacted mixed solution into the refrigerator, seal and cool down, and keep the temperature at 4°C for 24 hours;

[0045] Step 4, take out the cooled mixed liquid, bring its temperature back to room temperature, heat it in a water bath, keep the liquid temperature at 35...

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Abstract

An oil-soluble desulfurizer comprises the following components: 50-70 v% of benzene and 10-30 v% of diethanol amine. A preparation method comprises the steps of: first adding pure benzene into a beaker, then adding ethanol into a medical funnel, heating by a water bath, and dropwise adding the ethanol into the beaker with a constant speed in half an hour; after complete dropping, transferring the beaker to a water bath shaker, and maintaining the water temperature at 30 DEG C until complete dissolving and reaction of the ethanol and pure benzene; placing the reacted mixed solution into a freezer, sealing and cooling; taking out the cooled mixed solution, recovering to room temperature, and heating by a water bath; heating and transferring diethanol amine to a burette, and adding the diethanol amine into the mixed solution; and taking out the heated mixed solution, adding stirrer, carrying out electromagnetic stirring until complete dissolving and standing to obtain the desulfurizer. The prepared oil-soluble desulfurizer can be effectively dissolved in crude oil and can be used to reduce hydrogen sulfide gas in the crude oil.

Description

technical field [0001] The invention belongs to the technical field of crude oil desulfurization, relates to the treatment of crude oil containing high hydrogen sulfide, in particular to an oil-soluble desulfurizer and its preparation and application. Background technique [0002] h 2 S is a highly toxic gas that is seriously harmful to the human body. As far as the petroleum industry is concerned, H 2 The distribution of S gas is very wide, and there are potential safety hazards such as potential life injury to workers. It corrodes the oil pipeline and downstream refining equipment, pollutes the surrounding environment to a certain extent, and brings certain safety hazards to oilfield employees and residents. At present, domestic oilfield desulfurizers mainly include dry desulfurization and wet desulfurization. However, these desulfurizers have poor oil solubility, poor desulfurization efficiency for oil wells with low water content, and it is difficult to continuously ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G29/20
Inventor 金鹏康赵楠周立辉李岩
Owner SHAANXI URSTAR ENVIRONMENTAL SCI & TECH