CN102774948A - Desulfurizer for sulfur-containing wastewater - Google Patents
Desulfurizer for sulfur-containing wastewater Download PDFInfo
- Publication number
- CN102774948A CN102774948A CN2012102410603A CN201210241060A CN102774948A CN 102774948 A CN102774948 A CN 102774948A CN 2012102410603 A CN2012102410603 A CN 2012102410603A CN 201210241060 A CN201210241060 A CN 201210241060A CN 102774948 A CN102774948 A CN 102774948A
- Authority
- CN
- China
- Prior art keywords
- methyl
- water
- sweetening agent
- pyrrolidone
- anthraquinone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a desulfurizer for sulfur-containing wastewater, which is composed of 10-30 wt% of N-methyl-2-pyrrolidone fluoborate, 10-25 wt% of sodium anthraquinone-2,6(2,7)-disulfonate, 10-20 wt% of N-methyldiethanolamine, 1-5 wt% of methanol, 1-5 wt% of oxydol and 30-70 wt of water. The invention also provides a preparation method of the desulfurizer. The product can effectively oxidize mercaptan, thiophene and other sulfur-containing compounds into non-corrosive odorless soluble substances, thereby reducing the equipment and environment pollution.
Description
Technical field
The invention belongs to the sweetening agent field, especially relate to a kind of sour water sweetening agent.
Background technology
Oil; Especially contain a large amount of sulfide in heavy oil, the high-sulfur oils; Thereby in refining of petroleum was produced, these sulphur were enriched in refinery's vapour of refining processing output mostly with inorganic sulphide and organic sulfides such as mercaptan, disulphide such as hydrogen sulfide, elemental sulfurs.For the purpose of environmental protection, general refinery's vapour can be recovered processing.Water commonly used or other adsorptive liquid absorb, and then handle.Toxic, the corrodibility of sulfide in the waste water, and tool stink cause great pollution to environment, and can produce very big influence to the normal operation of waste water structures, therefore produce, the sulfur-containing waste water in the life must in addition appropriate processing.
Delay coking process is the technology that residual oil is changed into lightweight oil and coke; The hydraulic decoking technology is adopted in the removal of coke; Coke be in cooling, inevitably can produce sewage, coke powder in the excision process, have a strong impact on device and around environment, particularly give that water-cooled is burnt, bubble is burnt greatly, in the flooding process at device; Can produce oil-containing, the sour water of big amount temperature about 100 ℃, we are referred to as coke cooling water.Contain a large amount of sulfide in the coke cooling water, comprise hydrogen sulfide, mercaptan, thioether, thiophene; And mainly be that form with thiophenic sulfur exists, and the existence of these materials makes coke cooling water have foul odour, is detrimental to health when polluting surrounding environment.The content that how to reduce sulphur in the water body effectively more and more causes people's attention.
Application number is 200910019796.4 to disclose a kind of making method of reagent for depriving hydrogen sulphide; Form by formaldehyde (or acetaldehyde, ketone), MDEA (or hydramine), saline catalyst; The concentration of formaldehyde (or acetaldehyde, ketone) is 40%; Formaldehyde (or acetaldehyde, ketone) and the blending ratio of MDEA (or hydramine) are 2: 8, and the usage quantity of saline catalyst is decided according to formaldehyde (or acetaldehyde, ketone) and the total amount of MDEA (or hydramine); Its beneficial effect is: fast and effectively with hydrogen sulfide.
Application number is 201010562902.6 to disclose a kind of mercaptan removal agent compsn, and this agent is applicable to oil liquefied gas and the petroleum naphtha of producing the non-corrosiveness super low sulfur, sulphur content is reduced to below the 5ppb, but this agent is not suitable for the high system of sulphur content.
Product is in the past mainly laid particular stress on and is removed hydrogen sulfide, mercaptan, and removing seldom to have and relate to thioether, thiophene.Therefore we have developed a kind of sour water sweetening agent, can remove effectively the thioether in the water body, thiophene effectively.
Summary of the invention
The purpose of this invention is to provide a kind of sour water sweetening agent, be used for the desulfurization of coking oil-containing sour water.This product has been filled up the market vacancy and the technological gap in this field, can remove sulfocompounds such as mercaptan, thiophene effectively, makes it to be transformed into the soluble substance of no burn into odorless, reduces to equipment, to the pollution of environment.
Technical scheme of the present invention is following:
A kind of sour water sweetening agent is by the N-N-methyl-2-2-pyrrolidone N-fluoroborate of 10-30% (WT, down together), the anthraquinone of 10-25%-2; 6 (2,7)-disulfonic acid sodium salts, the N methyldiethanol amine of 10-20%; The methyl alcohol of 1-5%, the ydrogen peroxide 50 of 1-5%, the water of 30-70% is formed.
Preferably, the consumption of said N-N-methyl-2-2-pyrrolidone N-fluoroborate is 15-30%.
Preferably, the consumption of said anthraquinone-2,6 (2,7)-disulfonic acid sodium salt is 12-20%.
Preferably, the consumption of described N methyldiethanol amine is 11-17%.
The preparation method of above-mentioned sour water sweetening agent; Step is following: successively that water, anthraquinone-2,6 (2,7)-disulfonic acid sodium salt, N-N-methyl-2-2-pyrrolidone N-fluoroborate, the N methyldiethanol amine of weighing is mixed; Stir 20-40min according to 300-400r/min; Add ydrogen peroxide 50, methyl alcohol then, stir 15-30min, packing gets product.
Preferably; The preparation method of sour water sweetening agent may further comprise the steps: successively that water, anthraquinone-2,6 (2,7)-disulfonic acid sodium salt, N-N-methyl-2-2-pyrrolidone N-fluoroborate, the N methyldiethanol amine of weighing is mixed; Stir 30min according to 350r/min; Add ydrogen peroxide 50, methyl alcohol then, stir 20min, collect and get final product.
Advantage and positively effect that the present invention has are: this product can carry out oxidation with sulfocompounds such as mercaptan, thiophene effectively, makes it to be transformed into the soluble substance of no burn into odorless, reduces to equipment, to the pollution of environment.
Embodiment
Embodiment 1:
Successively with 680g water, 100g anthraquinone-2; 6 (2; 7)-disulfonic acid sodium salt, 100gN-N-methyl-2-2-pyrrolidone N-fluoroborate, 100gN-methyldiethanolamine are mixed, stir 20-40min according to 300-400r/min, add 10g ydrogen peroxide 50,10g methyl alcohol then; Stir 15-30min, packing gets product A.
Embodiment 2:
Successively with 150g water, 250g anthraquinone-2; 6 (2; 7)-disulfonic acid sodium salt, 300gN-N-methyl-2-2-pyrrolidone N-fluoroborate, 200gN-methyldiethanolamine are mixed, stir 20-40min according to 300-400r/min, add 50g ydrogen peroxide 50,50g methyl alcohol then; Stir 15-30min, packing gets product B.
Embodiment 3:
Successively with 260g water, 230g anthraquinone-2; 6 (2; 7)-disulfonic acid sodium salt, 270gN-N-methyl-2-2-pyrrolidone N-fluoroborate, 180gN-methyldiethanolamine are mixed, stir 20-40min according to 300-400r/min, add 30g ydrogen peroxide 50,30g methyl alcohol then; Stir 15-30min, packing gets products C.
Embodiment 4:
Successively with 430g water, 150g anthraquinone-2; 6 (2; 7)-disulfonic acid sodium salt, 200gN-N-methyl-2-2-pyrrolidone N-fluoroborate, 150gN-methyldiethanolamine are mixed, stir 20-40min according to 300-400r/min, add 30g ydrogen peroxide 50,40g methyl alcohol then; Stir 15-30min, packing gets product D.
Embodiment 5:
Successively with 280g water, 220g anthraquinone-2; 6 (2; 7)-disulfonic acid sodium salt, 250gN-N-methyl-2-2-pyrrolidone N-fluoroborate, 180gN-methyldiethanolamine are mixed, stir 20-40min according to 300-400r/min, add 40g ydrogen peroxide 50,30g methyl alcohol then; Stir 15-30min, packing gets product E.
Experimental program
Fetch coking oil-containing sour water from the scene, carry out quantitative packing, measure the sulphur content in the water body respectively, compare the decreasing ratio that draws mercaptan, thiophene with the data that add after the agent blank.
The amount * % of mercaptan in the water body before the decreasing ratio %=of mercaptan (add before the agent in the water body after the amount-Jia agent of mercaptan in the water body amount of mercaptan)/the add agent
The amount * % of thiophene in the water body before the decreasing ratio %=of thiophene (add before the agent in the water body after the amount-Jia agent of thiophene in the water body amount of thiophene)/the add agent
Experimental result
The desulfuration efficiency of the different agent of table 1
| Project | The A product | The B product | The C product | The D product | The E product |
| The mercaptan decreasing ratio, % | 67 | 86 | 91 | 89 | 91 |
| The thiophene decreasing ratio, % | 45 | 85 | 92 | 87 | 90 |
Remarks: adding dosage is 150ppm.
Select the C product to carry out the interpolation experiment that difference adds dosage, as shown in table 2.
Table 2 difference adds the desulfuration efficiency of dosage
| Project | 50ppm | 100ppm | 150ppm | 200ppm | 250ppm |
| The mercaptan decreasing ratio, % | 64 | 87 | 90 | 91 | 92 |
| The thiophene decreasing ratio, % | 56 | 86 | 89 | 90 | 90 |
By on can know that along with the increase that adds dosage, desulfurization degree increases gradually, but desulfurization degree increase is not obvious when addition is greater than 200ppm after; Suggestion dosage 100-200ppm, concrete dosage is decided with site specific.
More than one embodiment of the present of invention are specified, but said content is merely preferred embodiment of the present invention, can not be considered to be used to limit practical range of the present invention.All equalizations of doing according to application range of the present invention change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (6)
1. a sour water sweetening agent is characterized in that the N-N-methyl-2-2-pyrrolidone N-fluoroborate by 10-30% (WT, down together), the anthraquinone of 10-25%-2; 6 (2,7)-disulfonic acid sodium salts, the N methyldiethanol amine of 10-20%; The methyl alcohol of 1-5%, the ydrogen peroxide 50 of 1-5%, the water of 30-70% is formed.
2. sour water sweetening agent according to claim 1 is characterized in that: the consumption of said N-N-methyl-2-2-pyrrolidone N-fluoroborate is 15-30%.
3. sour water sweetening agent according to claim 1 is characterized in that: the consumption of said anthraquinone-2,6 (2,7)-disulfonic acid sodium salt is 12-20%.
4. sour water sweetening agent according to claim 1 is characterized in that: the consumption of described N methyldiethanol amine is 11-17%.
5. the preparation method of the described sour water sweetening agent of claim 1-4; Step is following: successively that water, anthraquinone-2,6 (2,7)-disulfonic acid sodium salt, N-N-methyl-2-2-pyrrolidone N-fluoroborate, the N methyldiethanol amine of weighing is mixed; Stir 20-40min according to 300-400r/min; Add ydrogen peroxide 50, methyl alcohol then, stir 15-30min, collect and get final product.
6. the preparation method of sour water sweetening agent according to claim 5 is characterized in that: may further comprise the steps:
Water, anthraquinone-2,6 (2,7)-disulfonic acid sodium salt, N-N-methyl-2-2-pyrrolidone N-fluoroborate, N methyldiethanol amine with weighing mixes successively, stirs 30min according to 350r/min, adds ydrogen peroxide 50, methyl alcohol then, stirs 20min, collects to get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102410603A CN102774948A (en) | 2012-07-12 | 2012-07-12 | Desulfurizer for sulfur-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102410603A CN102774948A (en) | 2012-07-12 | 2012-07-12 | Desulfurizer for sulfur-containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102774948A true CN102774948A (en) | 2012-11-14 |
Family
ID=47120089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102410603A Pending CN102774948A (en) | 2012-07-12 | 2012-07-12 | Desulfurizer for sulfur-containing wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102774948A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792336A (en) * | 1995-09-18 | 1998-08-11 | Elif Technologies Ltd. | Method for purification of wastewater from soluble substances |
| JPH10309190A (en) * | 1997-05-09 | 1998-11-24 | Mitsubishi Heavy Ind Ltd | Selenic acid reducing bacteria and wastewater treatment |
| CN101538478A (en) * | 2009-04-01 | 2009-09-23 | 孙文村 | Method for preparing reagent for depriving hydrogen sulphide |
| CN101993751A (en) * | 2010-11-29 | 2011-03-30 | 中国石油大学(北京) | Sweetening agent combination |
-
2012
- 2012-07-12 CN CN2012102410603A patent/CN102774948A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792336A (en) * | 1995-09-18 | 1998-08-11 | Elif Technologies Ltd. | Method for purification of wastewater from soluble substances |
| JPH10309190A (en) * | 1997-05-09 | 1998-11-24 | Mitsubishi Heavy Ind Ltd | Selenic acid reducing bacteria and wastewater treatment |
| CN101538478A (en) * | 2009-04-01 | 2009-09-23 | 孙文村 | Method for preparing reagent for depriving hydrogen sulphide |
| CN101993751A (en) * | 2010-11-29 | 2011-03-30 | 中国石油大学(北京) | Sweetening agent combination |
Non-Patent Citations (2)
| Title |
|---|
| 任秀蓉等: "气体净化中的硫化氢脱除技术研究", 《洁净煤技术》 * |
| 王建龙等: "BrΦnsted酸性离子液体在萃取氧化二苯并噻吩中的应用", 《石油学报（石油加工）》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101993750A (en) | Method for refining liquefied petroleum gas | |
| JP2007177245A5 (en) | ||
| BRPI1007586B1 (en) | hydrogen sulfide sequestering additive and hydrogen sulfide sequestering method in hydrocarbons | |
| CN103357261A (en) | Compound desulfurizer and preparation method thereof | |
| CN101844035A (en) | High-efficient desulfurizing agent for removing hydrogen sulfide and organic mercaptan from mixed gas | |
| RU2696467C2 (en) | Method of renewed wet desulphurisation using a suspension layer | |
| WO2014025533A1 (en) | In situ generation of polysulfide ions using elemental sulfur for improved corrosion control,cyanide management, mercury management, arsine management and performance and reliability of acid gas removal equipment | |
| CN113289458B (en) | Application of amine compound in removing organic sulfide | |
| JPS62106987A (en) | Removal of sulfur from hydrocarbon | |
| CN104119946B (en) | A kind of catalytic cracking flue gas desulfurization and Acidic Gas Treating technique | |
| CN103157348A (en) | High efficient desulfurizing agent with low energy consumption | |
| CN104403688A (en) | Deep desulfurization and refining combined technology for liquefied petroleum gas | |
| CA2985846C (en) | Solvent and method for removing acid gases from a gaseous mixture | |
| CN102908882B (en) | Treatment method for emissions of sour water storage tank | |
| CN104119947B (en) | A kind of catalytic cracking flue gas desulfurization and aftertreatment technology | |
| CN106433835A (en) | Oil-gas desulfurizing agent and application | |
| CN102774948A (en) | Desulfurizer for sulfur-containing wastewater | |
| CN103509590A (en) | Oxidation desulfurization method based on Lewis acid ion liquid | |
| SA112330579B1 (en) | Method of removing sulfur from crude oil and diesel using ionizing radiation | |
| CN103396852A (en) | Double-tower natural gas desulfurization prying device and application method | |
| CN113318586B (en) | Application of amine compound in improvement of organic sulfur dissolution and absorption removal | |
| CN105344205A (en) | Absorber for selectively removing H2S from CO2-containing mixing gas | |
| CN102343204A (en) | Method for removing sulfides from acidic gas flow | |
| CN104789262A (en) | Complete set of energy conservation and emission reduction type device and method for desulfurization and three-waste treatment of oil refinery | |
| CN104327901A (en) | Coal desulfurization process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |