CN114874807A - Preparation method and application of efficient hydrophilic-lipophilic desulfurizer - Google Patents
Preparation method and application of efficient hydrophilic-lipophilic desulfurizer Download PDFInfo
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- CN114874807A CN114874807A CN202210632460.0A CN202210632460A CN114874807A CN 114874807 A CN114874807 A CN 114874807A CN 202210632460 A CN202210632460 A CN 202210632460A CN 114874807 A CN114874807 A CN 114874807A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 45
- 230000023556 desulfurization Effects 0.000 claims abstract description 45
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 38
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 18
- 239000003112 inhibitor Substances 0.000 claims abstract description 16
- 230000007062 hydrolysis Effects 0.000 claims abstract description 14
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 14
- 239000004094 surface-active agent Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims abstract description 6
- 239000010779 crude oil Substances 0.000 claims description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- HUHGPYXAVBJSJV-UHFFFAOYSA-N 2-[3,5-bis(2-hydroxyethyl)-1,3,5-triazinan-1-yl]ethanol Chemical group OCCN1CN(CCO)CN(CCO)C1 HUHGPYXAVBJSJV-UHFFFAOYSA-N 0.000 claims description 7
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical group OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims description 5
- 239000007974 sodium acetate buffer Substances 0.000 claims description 5
- BHZOKUMUHVTPBX-UHFFFAOYSA-M sodium acetic acid acetate Chemical group [Na+].CC(O)=O.CC([O-])=O BHZOKUMUHVTPBX-UHFFFAOYSA-M 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 abstract description 4
- 239000011593 sulfur Substances 0.000 abstract description 4
- 239000003814 drug Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 230000003009 desulfurizing effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- PVXVWWANJIWJOO-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-N-ethylpropan-2-amine Chemical compound CCNC(C)CC1=CC=C2OCOC2=C1 PVXVWWANJIWJOO-UHFFFAOYSA-N 0.000 description 2
- QMMZSJPSPRTHGB-UHFFFAOYSA-N MDEA Natural products CC(C)CCCCC=CCC=CC(O)=O QMMZSJPSPRTHGB-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 229940043237 diethanolamine Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002455 scale inhibitor Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
- C10G29/20—Organic compounds not containing metal atoms
- C10G29/22—Organic compounds not containing metal atoms containing oxygen as the only hetero atom
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
- C10G29/20—Organic compounds not containing metal atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a preparation method and application of a high-efficiency hydrophilic-lipophilic desulfurizer, wherein the desulfurizer comprises the following components: 30 to 40 percent of desulfurization main agent, 20 to 40 percent of mutual solvent, 3 to 6 percent of surface active agent and 3 to 5 percent of hydrolysis inhibitor. The preparation method comprises the following steps: (1) adding the main desulfurization agent into a beaker, keeping the temperature at 20-30 ℃ in a water bath heating pot, and dropwise adding the mutual solvent into the main desulfurization agent at a constant speed within half an hour to fully mix the main desulfurization agent and the main desulfurization agent; (2) adding a stirring rotor into the obtained mixed solution at room temperature, controlling the rotating speed at 50-100 r/min, then respectively adding a surfactant and a hydrolysis inhibitor, and stirring until the surfactant and the hydrolysis inhibitor are completely dissolved; (3) standing for 24 hours to obtain the product. The invention has the advantages of simple preparation process, good water solubility and oil solubility, high sulfur capacity, good compatibility and the like, and has very wide application prospect in the treatment of hydrogen sulfide pollution in oil and gas fields.
Description
Technical Field
The invention belongs to the technical field of crude oil desulfurization, and particularly relates to a preparation method and application of a high-efficiency hydrophilic-lipophilic desulfurizer.
Background
The hydrogen sulfide gas generated in the process of oil exploitation has adverse effects on the gathering and transportation of crude oil, the processing of crude oil and the quality of finished oil, and sulfides dissolved in the crude oil can seriously corrode pipelines and equipment. The hydrogen sulfide gas has very high toxicity, can directly obstruct the uptake and transportation of oxygen by a human body, thereby causing the inactivation of respiratory enzymes in cells and the death of anoxic asphyxia of cells, and the toxicity of the hydrogen sulfide gas is 5 to 6 times stronger than that of carbon monoxide, thus threatening the personal safety.
The organic amine desulfurizer used in the current market has little corrosion, almost has no influence on demulsification, and has good crude oil desulfurization capability, but the desulfurizer is soluble in water but insoluble in oil, has low desulfurization efficiency, has low boiling point of organic amine molecules, is easy to volatilize, and can generate unpleasant odor; the hydroxide desulfurizer can effectively absorb hydrogen sulfide gas, but can form alkaline stable emulsion, and increases the difficulty of downstream dehydration process.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a preparation method and application of a high-efficiency hydrophilic-lipophilic desulfurizer, so that the high-efficiency hydrophilic-lipophilic desulfurizer can be applied to a longer gathering and transportation system and has less secondary hydrogen sulfide.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a high-efficiency hydrophilic and lipophilic desulfurizer, which comprises the following components in volume fraction: 30-40% of desulfurization main agent, 20-40% of mutual solvent, 3-6% of surfactant and 3-5% of hydrolysis inhibitor.
Preferably, the main desulfurization agent is hexahydro-1, 3, 5-tri (hydroxyethyl) -s-triazine.
Preferably, the mutual solvent is absolute ethyl alcohol.
Preferably, the surfactant is methyldiethanolamine.
Preferably, the hydrolysis inhibitor is an acetic acid-sodium acetate buffer.
Compared with other similar components, the invention has the advantages of high selectivity, rapid reaction, nontoxic product and the like.
Further, the efficient hydrophilic-lipophilic desulfurizer consists of the following components:
more preferably, the high-efficiency hydrophilic-lipophilic desulfurizer consists of the following components:
the invention further provides a preparation method of the efficient hydrophilic-lipophilic desulfurizer, which comprises the following steps:
(1) adding the main desulfurization agent into a beaker, keeping the temperature at 20-30 ℃ in a water bath heating pot, and dropwise adding the mutual solvent into the main desulfurization agent at a constant speed within half an hour to fully mix the main desulfurization agent and the main desulfurization agent;
(2) adding a stirring rotor into the mixed solution obtained in the step (1) at room temperature, controlling the rotating speed to be 50-100 r/min, then respectively adding a surfactant and a hydrolysis inhibitor, and stirring until the surfactant and the hydrolysis inhibitor are completely dissolved;
(3) standing for 24 hours to obtain the high-efficiency hydrophilic lipophilic desulfurizer.
The high-efficiency hydrophilic lipophilic desulfurizer of the invention can be used for removing hydrogen sulfide gas in crude oil, and can be embodied as a method for removing hydrogen sulfide gas in crude oil: the high-efficiency hydrophilic lipophilic desulfurizer is added into crude oil by the addition amount of 1.0kg/t, or is added into a crude oil extraction gathering system containing hydrogen sulfide together with other agents, so that the removal of hydrogen sulfide gas in the crude oil is realized.
Compared with the prior art, the invention has the beneficial effects that:
the invention has the characteristics of simple preparation process, batch production, large sulfur capacity in water phase and oil phase, strong adaptability and the like, overcomes the problems of low sulfur capacity, large medicament dosage and the like in the prior desulfurization technology, and has very wide application prospect in the field of petrochemical industry.
Drawings
FIG. 1 is a schematic diagram of a composite medicament and a compatible medicament monomer in a compatibility test experiment of the high-efficiency hydrophilic-lipophilic desulfurizer of the invention.
FIG. 2 shows that the ratio of the compound agent to the compatible agent in the compatibility test of the high-efficiency hydrophilic-lipophilic desulfurizer of the invention is 1:1 volume ratio mixing scheme.
Detailed Description
In order that the above objects, features and advantages of the present invention may be more clearly understood, a solution of the present invention will be further described below. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein; it is to be understood that the embodiments described in this specification are only some embodiments of the invention, and not all embodiments.
Preferred embodiments of the present invention will be described in detail with reference to the following examples. It is to be understood that the following examples are given for illustrative purposes only and are not intended to limit the scope of the present invention. Various modifications and alterations of this invention will become apparent to those skilled in the art without departing from the spirit and scope of this invention.
The experimental procedures used in the following examples are all conventional procedures unless otherwise specified.
Materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example 1:
based on the synthesis of the high-efficiency hydrophilic and oleophilic desulfurizer, the desulfurizer comprises the following components: 30 percent of desulfurization main agent, 20 percent of mutual solvent, 3 percent of surface active agent, 3 percent of hydrolysis inhibitor and the balance of water. The synthesis steps of the desulfurizer are as follows:
the method comprises the following steps: adding 30ml of hexahydro-1, 3, 5-tri (hydroxyethyl) -s-triazine into a beaker, keeping the temperature in a water bath heating pot at 20-30 ℃, and dropwise adding 20ml of absolute ethyl alcohol into the beaker at a constant speed for half an hour to fully mix the absolute ethyl alcohol and the absolute ethyl alcohol.
Step two: and (3) adding a stirring rotor into the mixed solution at room temperature, controlling the rotating speed at 50-100 r/min, respectively adding 3ml of methyldiethanolamine and 3ml of acetic acid-sodium acetate buffer solution, and electronically stirring until the mixture is completely dissolved.
Step three: standing for 24 hours to obtain the high-efficiency hydrophilic lipophilic desulfurizer.
Example 2:
based on the synthesis of the high-efficiency hydrophilic and oleophilic desulfurizer, the desulfurizer comprises the following components: 35 percent of desulfurization main agent, 30 percent of mutual solvent, 4 percent of surfactant, 4 percent of hydrolysis inhibitor and the balance of water. The synthesis steps of the desulfurizer are as follows:
the method comprises the following steps: 35ml of hexahydro-1, 3, 5-tris (hydroxyethyl) -s-triazine is added into a beaker, the temperature is kept between 20 and 30 ℃ in a water bath heating pot, and 30ml of absolute ethyl alcohol is dripped into the beaker at a constant speed for half an hour to be fully mixed.
Step two: and (3) adding stirring seal into the mixed solution at room temperature, controlling the rotating speed at 50-100 r/min, respectively adding 4ml of methyldiethanolamine and 4ml of acetic acid-sodium acetate buffer solution, and electronically stirring until the mixture is completely dissolved.
Step three: standing for 24 hours to obtain the high-efficiency hydrophilic and lipophilic desulfurizer.
Example 3:
based on the synthesis of the high-efficiency hydrophilic and oleophilic desulfurizer, the desulfurizer comprises the following components: 40% of desulfurization main agent, 40% of mutual solvent, 6% of surfactant, 5% of hydrolysis inhibitor and the balance of water. The synthesis steps of the desulfurizer are as follows:
the method comprises the following steps: adding 40ml of hexahydro-1, 3, 5-tri (hydroxyethyl) -s-triazine into a beaker, keeping the temperature in a water bath heating pot at 20-30 ℃, and dropwise adding 40ml of absolute ethyl alcohol into the beaker at a constant speed for half an hour to fully mix the absolute ethyl alcohol and the absolute ethyl alcohol.
Step two: and (3) adding stirring seal into the mixed solution at room temperature, controlling the rotating speed at 50-100 r/min, respectively adding 6ml of methyldiethanolamine and 5ml of acetic acid-sodium acetate buffer solution, and electronically stirring until the mixture is completely dissolved.
Step three: standing for 24 hours to obtain the high-efficiency hydrophilic and lipophilic desulfurizer.
Experimental example 1:
in order to verify the desulfurization efficiency of the high-efficiency hydrophilic-lipophilic desulfurizer, the high-efficiency hydrophilic-lipophilic desulfurizer prepared in the embodiments 1 to 3 was subjected to a reagent performance detection experiment, and the specific steps are as follows:
(1) injecting 1L of crude oil in the oil field into a closed container, immediately sealing the container and fully shaking for 5 minutes, and then measuring the hydrogen sulfide content in the reactor, wherein the measured value is the background hydrogen sulfide content in the crude oil.
(2) Injecting 1L of crude oil into a closed container, immediately sealing the container, sufficiently shaking for 5 minutes, and adding 5L/m 3 High-efficiency hydrophilic and lipophilic desulfurizer. After shaking for 30min, the hydrogen sulfide concentration therein was measured.
(3) And calculating the desulfurization efficiency of the reagent according to the content change of the hydrogen sulfide in the closed container before and after adding the reagent.
As shown in Table 1, the desulfurization rates of the efficient hydrophilic-lipophilic desulfurizers prepared in examples 1 to 3 are high, and the hydrogen sulfide concentrations are all reduced to less than 10ppm, which meets the requirements of occupational protection standards (GBZ2-2002) in industrial sites.
TABLE 1 desulfurization rates of three high-efficiency hydrophilic-lipophilic desulfurizers
Experimental example 2:
in order to verify the stability of the high-efficiency hydrophilic-lipophilic desulfurizer, a compatibility detection experiment is performed on the high-efficiency hydrophilic-lipophilic desulfurizer prepared in example 3, and the specific steps are as follows:
(1) mixing the novel hydrophilic and oleophilic desulfurizer with compatible medicaments (scale inhibitor ZG-558, scale inhibitor ZG-108, fire-fighting wax agent, corrosion inhibitor and sulfur-resistant corrosion inhibitor) in a volume ratio of 1:1, standing for a period of time, and observing whether the reaction occurs.
(2) Adding the compatible medicament into 1L of crude oil, and then adding 5L/m 3 The high-efficiency hydrophilic and oleophilic desulfurizing agent calculates the desulfurizing efficiency of the agent according to the content change of the hydrogen sulfide in the closed container before and after adding the chemical.
The results of the compatibility experiment are shown in fig. 1 and fig. 2, wherein the hydrophilic and lipophilic desulfurizer does not react with the current oil field medicament.
TABLE 2 desulfurization efficiency of novel hydrophilic-lipophilic desulfurization agents in the presence of compatible agents
The influence of the compatible medicament on the desulfurization efficiency of the hydrophilic and oleophilic desulfurizer is shown in table 2, and the oil field medicament hardly influences the desulfurization effect of the composite desulfurization bactericide, so that the use requirement of the oil field is met.
Comparative examples 1 to 6:
the key to the present invention to solve the above technical problems and to obtain excellent product properties is the type and amount of the main desulfurization agent. In order to verify the influence of the type and the dosage of the main desulfurization agent on the desulfurization efficiency, diethanol amine (MDEA) and hexahydro-1, 3, 5-tri (hydroxyethyl) -s-triazine are used as the main desulfurization agents, and the desulfurization performance of the desulfurizing agent is compared under the condition that the dosage of the main desulfurization agent is 70%, 35% and 10%. The static test method was the same as that used in example 1, and the test results are shown in Table 4. It can be seen that, under different main agent dosages, the desulfurization efficiency of hexahydro-1, 3, 5-tris (hydroxyethyl) -s-triazine is better than that of diethanol amine (MDEA), the desulfurization efficiency is obviously improved when the main agent dosage is increased to 35 percent, and is increased to 70 percent, the desulfurization efficiency is basically unchanged, and therefore, the main agent dosage of 35 percent is more preferable.
TABLE 3 amount of desulfurizing main agent
TABLE 4 desulfurization rates at different desulfurization hosts and dosages
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of this invention as claimed.
Claims (9)
1. The efficient hydrophilic lipophilic desulfurizer is characterized by comprising the following components in volume fraction dosage: 30 to 40 percent of desulfurization main agent, 20 to 40 percent of mutual solvent, 3 to 6 percent of surface active agent and 3 to 5 percent of hydrolysis inhibitor.
2. The efficient hydrophilic lipophilic desulfurizer as claimed in claim 1, wherein the main desulfurization agent is hexahydro-1, 3, 5-tris (hydroxyethyl) -s-triazine.
3. The efficient hydrophilic lipophilic desulfurizer as claimed in claim 1, wherein the mutual solvent is absolute ethyl alcohol.
4. The efficient hydrophilic lipophilic desulfurizer as claimed in claim 1, wherein the surfactant is methyldiethanolamine.
5. The efficient hydrophilic lipophilic desulfurizer as claimed in claim 1, wherein the hydrolysis inhibitor is acetic acid-sodium acetate buffer.
6. The efficient hydrophilic lipophilic desulfurizer as claimed in any one of claims 1 to 5, which is characterized by comprising the following components:
the balance being water.
7. The preparation method of the high-efficiency hydrophilic lipophilic desulfurizer as claimed in any one of claims 1 to 6, which comprises the following steps:
(1) adding the main desulfurization agent into a beaker, keeping the temperature at 20-30 ℃ in a water bath heating pot, and dropwise adding the mutual solvent into the main desulfurization agent at a constant speed within half an hour to fully mix the main desulfurization agent and the main desulfurization agent;
(2) adding a stirring rotor into the mixed solution obtained in the step (1) at room temperature, controlling the rotating speed to be 50-100 r/min, then respectively adding a surfactant and a hydrolysis inhibitor, and stirring until the surfactant and the hydrolysis inhibitor are completely dissolved;
(3) standing for 24 hours to obtain the high-efficiency hydrophilic lipophilic desulfurizer.
8. The use of the high efficiency hydrophilic lipophilic desulfurization agent according to any one of claims 1 to 6 for removing hydrogen sulfide gas from crude oil.
9. The application of claim 8, wherein the high-efficiency hydrophilic-lipophilic desulfurizer is added into the crude oil in an amount of 1.0kg/t to remove the hydrogen sulfide gas from the crude oil.
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| CN108929715A (en) * | 2018-07-06 | 2018-12-04 | 威海翔泽新材料科技有限公司 | A kind of preparation of the water base desulfurizing agent for sour crude |
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- 2022-06-07 CN CN202210632460.0A patent/CN114874807A/en active Pending
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| CN108676577A (en) * | 2018-03-26 | 2018-10-19 | 中国海洋石油集团有限公司 | A kind of oil field mining liquid liquid desulfurizing agent and preparation method thereof |
| CN108929715A (en) * | 2018-07-06 | 2018-12-04 | 威海翔泽新材料科技有限公司 | A kind of preparation of the water base desulfurizing agent for sour crude |
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Application publication date: 20220809 |