SU268580A1 - Method of dehydration and desalting of oil - Google Patents
Method of dehydration and desalting of oilInfo
- Publication number
- SU268580A1 SU268580A1 SU1272854A SU1272854A SU268580A1 SU 268580 A1 SU268580 A1 SU 268580A1 SU 1272854 A SU1272854 A SU 1272854A SU 1272854 A SU1272854 A SU 1272854A SU 268580 A1 SU268580 A1 SU 268580A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- oil
- desalting
- dehydration
- demulsifier
- emulsion
- Prior art date
Links
- 238000011033 desalting Methods 0.000 title description 4
- 238000006297 dehydration reaction Methods 0.000 title description 3
- 239000003921 oil Substances 0.000 description 12
- 239000003153 chemical reaction reagent Substances 0.000 description 7
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002569 water oil cream Substances 0.000 description 3
- FBUKVWPVBMHYJY-UHFFFAOYSA-N Nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Tris Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000005643 Pelargonic acid Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910021320 cobalt-lanthanum-strontium oxide Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N oxane Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Description
Изобретение относитс к области обезвоживани и обессоливани нефтей с применением катионоактивных реагентов-деэмульгаторов.The invention relates to the field of dehydration and desalting of oils using cationic demulsifying agents.
Известен способ обезвоживани и обессоливани нефти путем введени в водо-нефт ную эмульсию деэмульгаторов - четвертичных аммониевых солей, полученных на основе кислот и смеси первичных аминов, образующихс при частичном нитровании и последующем гидрировании парафиновых углеводородов с общей фо рмулойA known method of dehydrating and desalting oil is by introducing quaternary ammonium salts based on acids and a mixture of primary amines formed by partial nitration and subsequent hydrogenation of paraffin hydrocarbons with a total formula to the water-oil emulsion of demulsifiers
СН,CH,
R-N-CH, -С1Ч CN, .R-N-CH, -C1CH CN,.
где R - алкильный радикал.where R is an alkyl radical.
Целью предлолсенного изобретени вл етс расширение ассортимента катионоактивных деэмульгаторов дл различных нефтей.The purpose of the present invention is to expand the range of cationic demulsifiers for various oils.
Дл этого примен ют в качестве четвертичной соли аммони соль, имеющую общую формулуFor this, the salt having the general formula is used as the quaternary ammonium salt.
RCOOC2H4N-(С2Н40Н)2 +-АпI RRCOOC2H4N- (С2Н40Н) 2 + -АпI R
держащейСН -,С2Н5-,holding the CH -, C2H5-,
СвН5СН2-,С2Н40Н-,SvN5CH2-, C2N40N-,
An - анион,напримерС1-,An - anion, for example C1-,
СНз(С2Н5)504-.CH3 (C2H5) 504-.
Расход предлагаемых реагентов-деэмульгаторов , в зависимости от природы нефти, находитс в пределах 50-150 г/т нефти.The consumption of the proposed demulsifying reagents, depending on the nature of the oil, is in the range of 50-150 g / ton of oil.
Пример. Обезвоживание мухановской девонской нефти соединением следуюп1ей формулы C8H,7COOC2H4N(C2H40H)2r-Cl-, полуСНзExample. Dehydration of Mukhanovo Devonian oil with a compound of the following formula C8H, 7COOC2H4N (C2H40H) 2r-Cl-, half-CH 3
чаемым на основе пеларгоновой кислоты, триэтаноламина и хлорметила. К 20% эмульсии типа вода - нефть, вз той в определенном количестве , дозируют различные количества 2%-ного водного раствора реагента-деэмульгатора . После смещени реагента с эмульсией в течение 10 мин обработанную эмульсию став т на 4 час дл отсто при 60°С. После отделени отсто вщейс воды определ ют содержание остаточной воды в нефти по ГОСТ 2477-44.based on pelargonic acid, triethanolamine and chloromethyl. To a 20% water-oil emulsion, taken in a specific amount, various amounts of a 2% aqueous solution of a demulsifier reagent are metered. After displacing the reagent with the emulsion for 10 minutes, the treated emulsion is set for 4 hours to stand at 60 ° C. After separation of the settled water, the residual water content in the oil is determined according to GOST 2477-44.
Расход деэмульгатора составл ет 50 г/т при остаточном содержании воды в нефти 0,9%.The demulsifier consumption is 50 g / t with a residual water content in oil of 0.9%.
В таблице приведены технико-экономические показатели предлагаемого реагента-деэмульгатора (катацил-1), получаемого на основе промыщленного сырь : фракции Сю-Cie синтетических жирных кислот, техническийThe table shows the technical and economic indicators of the proposed demulsifier reagent (katacil-1), obtained on the basis of industrial raw materials: Syu-Cie fraction of synthetic fatty acids, technical
Стоимость реагентов катацил-1, ОП-10 от 1 июл 1967 г. The cost of catacyl-1 reagents, OP-10 dated July 1, 1967
ОЖК скалькулирована по прейскуранту Л 01-01OHA is calculated according to the price list L 01-01
триэтаноламин и хлорметил, отечественные (ОП-10, ОЖК, НЧК) и импортный (дисольван ) реагенты, испытанных в тех же услови х, что и катацил-1,. при том, же содержании остаточной воды в нефти (0,9%).triethanolamine and chloromethyl, domestic (OP-10, OHA, LSC) and imported (disolvan) reagents, tested under the same conditions as catacyl-1 ,. however, the content of residual water in oil (0.9%).
Как видно из приведенной таблицы, предлагаемые реагенты катацилы-1 не только сокращают затраты на подготовку нефти, но и расход окиси этилена в 5-7 раз и, следовательно , расшир етс ассортимент деэмульгатора дл нефтедобывающей промышленности.As can be seen from the above table, the proposed catacil-1 reagents not only reduce the cost of oil preparation, but also the consumption of ethylene oxide by 5-7 times and, therefore, the range of demulsifier for the oil industry is expanded.
Предмет изобретени Subject invention
Способ обезвоживани и обессоливани нефти путем введени в водо-нефт ную эмульсию деэмульгатора, в качестве которого используетс четвертична соль аммони на основе жирных кислот, отличающийс тем, что, с целью расширени ассортимента деэмульгаторов , в качестве четвертичной соли аммони берут соль общей формулыThe method of dehydrating and desalting oil by introducing a demulsifier into the water-oil emulsion, which is used as a quaternary ammonium salt based on fatty acids, characterized in that, in order to expand the range of demulsifiers, salt of the general formula is taken as the quaternary ammonium salt
RCOOC2H4N- (С2Н40Н)2 +-Ап1RCOOC2H4N- (С2Н40Н) 2 + -An1
1 где R - алкильный радикал Со-С2о,1 where R is the alkyl radical Co — C 2 O,
RI - радикал, выбранный из группы, содержащейСНз ,С2Н5,RI is a radical selected from the group consisting of CH 3, C 2 H 5,
СбН5СН2-,С2Н4ОН-,SbH5CH2-, C2H4OH-,
An - анион,напримерС1-,An - anion, for example C1-,
СНз(С2Н5)5О4-.CH3 (C2H5) 5O4-.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU268580A1 true SU268580A1 (en) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444654A (en) * | 1983-09-01 | 1984-04-24 | Exxon Research & Engineering Co. | Method for the resolution of enhanced oil recovery emulsions |
| US5250174A (en) * | 1992-05-18 | 1993-10-05 | Betz Laboratories, Inc. | Method of breaking water-in-oil emulsions by using quaternary alkyl amine ethoxylates |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444654A (en) * | 1983-09-01 | 1984-04-24 | Exxon Research & Engineering Co. | Method for the resolution of enhanced oil recovery emulsions |
| US5250174A (en) * | 1992-05-18 | 1993-10-05 | Betz Laboratories, Inc. | Method of breaking water-in-oil emulsions by using quaternary alkyl amine ethoxylates |
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