CN103951009A - Coking demulsifier and preparation method thereof - Google Patents
Coking demulsifier and preparation method thereof Download PDFInfo
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- CN103951009A CN103951009A CN201410052328.8A CN201410052328A CN103951009A CN 103951009 A CN103951009 A CN 103951009A CN 201410052328 A CN201410052328 A CN 201410052328A CN 103951009 A CN103951009 A CN 103951009A
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- coking
- emulsion splitter
- inhibiter
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Abstract
The present invention discloses a coking demulsifier, which comprises, by weight, 25-40% of a cationic surfactant, 5-10% of a dispersant, 5-10% of a wetting agent, 10-20% of a corrosion inhibitor, and the balance of water. The present invention further discloses a preparation method for the coking demulsifier. According to the present invention, rapid demulsification of the delayed coking apparatus oil-water separation tank can be achieved, and the oil content in the discharged water can be significantly reduced; the water is clear after demulsification; corrosion of the water body on equipment is reduced; and the coking demulsifier does not contain inorganic ions, and does not affect the existing water system.
Description
Technical field
The invention belongs to chemical field, be specifically related to a kind of coking emulsion splitter and preparation method thereof.
Background technology
Delayed coking unit is the important means of crude oil secondary processing, heavy oil in coking tower at 500 DEG C of left and right temperature heat cracking reaction generate light oil and coke, light oil is separated into each component through separation column.In recent years, due to processing crude oil in poor quality, in crude oil, sulphur content, acid content progressively rise, contain a large amount of decomposition in fractionator overhead gun barrel medium and generate the materials such as mercaptan, phenol, naphthenic acid, these materials play emulsifying agent effect, very easily make to occur in gun barrel the stable in properties of emulsion and emulsion, be difficult for eliminating.In the sour water that emulsification causes getting rid of, oleaginousness significantly increases, and a large amount of oily(waste)waters will cause follow-up sewage stripping device oily water separation difficulty, and sewage load increases, and plant energy consumption strengthens.
At present not for the emulsion splitter using at delayed coking unit separation column gun barrel, when emulsification problem is serious adopt the polymeric aluminum using in sewage disposal to rise to impel emulsion to disperse the layering of condensing of breakdown of emulsion and water droplet more, in actual use, polymeric aluminum exist usage quantity large, be difficult for injecting and the shortcoming such as the pipeline that very easily makes to annotate blocks, demulsification is not obvious.Because fractionator overhead oily water separation tank volume is little, it is short that profit stops disengaging time, needs a kind of emulsion splitter using for delayed coking unit gun barrel emulsification mechanism, can fast emulsion breaking and require that usage quantity is little, filling is convenient, environmentally safe.
Summary of the invention
Goal of the invention: the object of the invention is to for prior art deficiency, provide a kind of for abolishing the coking emulsion splitter of emulsification, to can realize the fast emulsion breaking of sewage in fractionation tower top gun barrel, significantly reduce the oleaginousness in draining.
Another object of the present invention is to provide the preparation method of above-mentioned coking emulsion splitter.
Technical scheme: in order to reach foregoing invention object, the present invention specifically completes like this: a kind of coking emulsion splitter, comprise the component of following weight percent: 25～40% cats product, 5～10% dispersion agent, 5～10% wetting agent, 10～20% inhibiter, surplus is water.
Wherein, described cats product is long carbon chain quaternary ammonium salt, and preferably, described long carbon chain quaternary ammonium salt is that 2～2.5:0.5～1:1～1.5 are synthetic in molar ratio forms for epoxy chloropropane, polyethylene polyamine and dimethylamine.This type of material can by physical dissolution method effectively in effect and milk sap drop surface institute electrically charged, destroy electric charge electrostatic double layer around, promote the flocculation, coalescent of drop, thereby impel layering, the breakdown of emulsion of milk sap.
Wherein, described dispersion agent is that one or more in polyisobutene, polyoxyethylene glycol, polyacrylamide mix.
Wherein, described wetting agent is polyxyethylated alkylphenol, and one or more in polyoxyethylene aliphatic alcohol ether, polyoxyethylene polyoxypropylene block copolymer mix.
Wherein, described inhibiter is the heterogeneous ring compound containing oxynitrides, is preferably one or more in quadrol, imidazoline amide, coloured glaze base benzothiazole, benzotriazole and mixes, and can effectively slow down the corrosive nature of sour water to equipment.
The method of preparing above-mentioned arbitrary described coking emulsion splitter, comprises the following steps:
(1) by proportioning, dimethylamine, polyethylene polyamine are joined in moisture reactor and stirred;
(2) continue to press than dripping epoxy chloropropane;
(3) be warmed up to 90 DEG C, then insulation reaction is cooled to after 1～1.5 hour below 55 DEG C;
(4), by above-mentioned synthetic work in-process cats product, normal pressure and 55 DEG C of following stirrings, pump into respectively dispersion agent, wetting agent and inhibiter mix and blend by proportioning and after 1～2 hour, be down to room temperature barreled.
Beneficial effect: a kind of mainly mixture taking cationic surfactant as master that the present invention be directed to the emulsification mechanism development of refinery delayed coking unit sour water, it can be effectively in and milk sap drop surface institute electrically charged, destroy electric charge electrostatic double layer around, promote the flocculation, coalescent of drop, thereby impel layering, the breakdown of emulsion of milk sap, eliminate delayed coking gun barrel internal emulsification phenomenon, reduce oil-contg in sour water.
The present invention can realize the fast emulsion breaking of delayed coking unit gun barrel, significantly reduces the oleaginousness in draining; After breakdown of emulsion, water body is limpid; Reduce the corrosion of water body to equipment simultaneously; Containing mineral ion, on existing water body system without impact.
Embodiment
Embodiment 1:
Get 25% cats product by mass percent, 10% dispersion agent, 10% wetting agent, 20% inhibiter and 35% water are stand-by, and described cats product is that 2:0.5:1 is synthetic in molar ratio forms for epoxy chloropropane, polyethylene polyamine and dimethylamine.First dimethylamine, polyethylene polyamine are joined in moisture reactor and stirred, then continue to press than dripping epoxy chloropropane, and be warmed up to 90 DEG C, insulation reaction is cooled to after 1～1.5 hour below 55 DEG C again, normal pressure and 55 DEG C of following stirrings, pump into respectively polyisobutene, polyxyethylated alkylphenol and quadrol mix and blend and after 1～2 hour, be down to room temperature barreled.
Embodiment 2:
Get 30% cats product by mass percent, 5% dispersion agent, 10% wetting agent, 15% inhibiter and 40% water are stand-by, and described cats product is that 2:0.5:1 is synthetic in molar ratio forms for epoxy chloropropane, polyethylene polyamine and dimethylamine.First dimethylamine, polyethylene polyamine are joined in moisture reactor and stirred, then continue to press than dripping epoxy chloropropane, and be warmed up to 90 DEG C, insulation reaction is cooled to after 1～1.5 hour below 55 DEG C again, normal pressure and 55 DEG C of following stirrings, pump into respectively polyoxyethylene glycol, polyoxyethylene aliphatic alcohol ether and imidazoline amide mix and blend and after 1～2 hour, be down to room temperature barreled.
Embodiment 3:
Get 35% cats product by mass percent, 10% dispersion agent, 5% wetting agent, 10% inhibiter and 40% water are stand-by, and described cats product is that 2:0.5:1 is synthetic in molar ratio forms for epoxy chloropropane, polyethylene polyamine and dimethylamine.First dimethylamine, polyethylene polyamine are joined in moisture reactor and stirred, then continue to press than dripping epoxy chloropropane, and be warmed up to 90 DEG C, insulation reaction is cooled to after 1～1.5 hour below 55 DEG C again, normal pressure and 55 DEG C of following stirrings, pump into respectively polyacrylamide, polyoxyethylene polyoxypropylene block copolymer and coloured glaze base benzothiazole mix and blend and after 1～2 hour, be down to room temperature barreled.
Embodiment 4:
Get 40% cats product by mass percent, 5% dispersion agent, 5% wetting agent, 15% inhibiter and 35% water are stand-by, and described cats product is that 2:0.5:1 is synthetic in molar ratio forms for epoxy chloropropane, polyethylene polyamine and dimethylamine.First dimethylamine, polyethylene polyamine are joined in moisture reactor and stirred, then continue to press than dripping epoxy chloropropane, and be warmed up to 90 DEG C, insulation reaction is cooled to after 1～1.5 hour below 55 DEG C again, normal pressure and 55 DEG C of following stirrings, pump into respectively polyisobutene, polyoxyethylene aliphatic alcohol ether and benzotriazole mix and blend and after 1～2 hour, be down to room temperature barreled.
Claims (7)
1. a coking emulsion splitter, is characterized in that, comprises the component of following weight percent: 25～40% cats product, and 5～10% dispersion agent, 5～10% wetting agent, 10～20% inhibiter, surplus is water.
2. coking emulsion splitter according to claim 1, is characterized in that, described cats product is long carbon chain quaternary ammonium salt.
3. coking emulsion splitter according to claim 2, is characterized in that, described long carbon chain quaternary ammonium salt is that 2～2.5:0.5～1:1～1.5 are synthetic in molar ratio forms for epoxy chloropropane, polyethylene polyamine and dimethylamine.3, coking emulsion splitter according to claim 1, is characterized in that, described dispersion agent is that one or more in polyisobutene, polyoxyethylene glycol, polyacrylamide mix.
4. according to coking emulsion splitter according to claim 1, it is characterized in that, described wetting agent is polyxyethylated alkylphenol, and one or more in polyoxyethylene aliphatic alcohol ether, polyoxyethylene polyoxypropylene block copolymer mix.
5. according to coking emulsion splitter according to claim 1, it is characterized in that, described inhibiter is the heterogeneous ring compound containing oxynitrides.
6. according to coking emulsion splitter according to claim 5, it is characterized in that, described inhibiter is that one or more in quadrol, imidazoline amide, coloured glaze base benzothiazole, benzotriazole mix.
7. the method for the above-mentioned arbitrary described coking emulsion splitter of preparation, is characterized in that, comprises the following steps:
(1) by proportioning, dimethylamine, polyethylene polyamine are joined in moisture reactor and stirred;
(2) continue to press than dripping epoxy chloropropane;
(3) be warmed up to 90 DEG C, then insulation reaction is cooled to after 1～1.5 hour below 55 DEG C;
(4), by above-mentioned synthetic work in-process cats product, normal pressure and 55 DEG C of following stirrings, pump into respectively dispersion agent, wetting agent and inhibiter mix and blend by proportioning and after 1～2 hour, be down to room temperature barreled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410052328.8A CN103951009A (en) | 2014-02-17 | 2014-02-17 | Coking demulsifier and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410052328.8A CN103951009A (en) | 2014-02-17 | 2014-02-17 | Coking demulsifier and preparation method thereof |
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| CN103951009A true CN103951009A (en) | 2014-07-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540738A (en) * | 2015-12-17 | 2016-05-04 | 广州小众环保科技有限公司 | Efficient demulsifier and preparation method and application thereof |
| CN109970146A (en) * | 2019-04-11 | 2019-07-05 | 山东聚兴新材料科技有限公司 | A kind of oil-water separating agent handling oily waste water and its application in crude oil electric desalting drainage sunk well |
| CN112795398A (en) * | 2021-01-14 | 2021-05-14 | 武汉润尔华科技有限公司 | Preparation of deacidifying agent for high-acid crude oil and distillate oil thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07256251A (en) * | 1994-03-18 | 1995-10-09 | Chlorine Eng Corp Ltd | Rotational belt-type oil recovering apparatus |
| CN101555056A (en) * | 2009-05-05 | 2009-10-14 | 中国石油兰州石油化工公司 | High-efficiency emulsion splitter |
| CN102765767A (en) * | 2012-07-12 | 2012-11-07 | 天津市瑞德赛恩新材料开发有限公司 | Delay coking coke cooling water demulsifier composition and preparation method and application thereof |
-
2014
- 2014-02-17 CN CN201410052328.8A patent/CN103951009A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07256251A (en) * | 1994-03-18 | 1995-10-09 | Chlorine Eng Corp Ltd | Rotational belt-type oil recovering apparatus |
| CN101555056A (en) * | 2009-05-05 | 2009-10-14 | 中国石油兰州石油化工公司 | High-efficiency emulsion splitter |
| CN102765767A (en) * | 2012-07-12 | 2012-11-07 | 天津市瑞德赛恩新材料开发有限公司 | Delay coking coke cooling water demulsifier composition and preparation method and application thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540738A (en) * | 2015-12-17 | 2016-05-04 | 广州小众环保科技有限公司 | Efficient demulsifier and preparation method and application thereof |
| CN105540738B (en) * | 2015-12-17 | 2017-12-08 | 广州小众环保科技有限公司 | A kind of efficient demulsifier and its preparation method and application |
| CN109970146A (en) * | 2019-04-11 | 2019-07-05 | 山东聚兴新材料科技有限公司 | A kind of oil-water separating agent handling oily waste water and its application in crude oil electric desalting drainage sunk well |
| CN109970146B (en) * | 2019-04-11 | 2021-07-30 | 山东聚兴新材料科技有限公司 | Oil-water separating agent for treating oily wastewater and application of oil-water separating agent in crude oil electric desalting drainage treatment |
| CN112795398A (en) * | 2021-01-14 | 2021-05-14 | 武汉润尔华科技有限公司 | Preparation of deacidifying agent for high-acid crude oil and distillate oil thereof |
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Application publication date: 20140730 |