EA199800703A1 - METHOD OF OBTAINING OIL FRACTIONS - Google Patents

METHOD OF OBTAINING OIL FRACTIONS

Info

Publication number
EA199800703A1
EA199800703A1 EA199800703A EA199800703A EA199800703A1 EA 199800703 A1 EA199800703 A1 EA 199800703A1 EA 199800703 A EA199800703 A EA 199800703A EA 199800703 A EA199800703 A EA 199800703A EA 199800703 A1 EA199800703 A1 EA 199800703A1
Authority
EA
Eurasian Patent Office
Prior art keywords
column
main column
gasoline
oil
increase
Prior art date
Application number
EA199800703A
Other languages
Russian (ru)
Other versions
EA000712B1 (en
Inventor
Феликс Борисович Петлюк
Майя Хаймовна Ямпольская
Вячеслав Яковлевич Киевский
Олег Леонидович Карпиловский
Original Assignee
Тоо Научно-Техническая Фирма "Икт-Сервис"
Ооо Фирма "Вилар"
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Тоо Научно-Техническая Фирма "Икт-Сервис", Ооо Фирма "Вилар" filed Critical Тоо Научно-Техническая Фирма "Икт-Сервис"
Priority to EA199800703A priority Critical patent/EA000712B1/en
Priority to PCT/EA1999/000004 priority patent/WO1999058449A2/en
Publication of EA199800703A1 publication Critical patent/EA199800703A1/en
Publication of EA000712B1 publication Critical patent/EA000712B1/en

Links

Classifications

    • 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
    • C10G7/00—Distillation of hydrocarbon oils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Изобретение относится к области первичной перегонки нефти и может быть использовано для разделения нефти на установках АВТ. Сущность изобретения заключается в том, что в способе получения нефтяных фракций в колонне отбензинивания и основной ректификационной колонне с получением в колонне отбензинивания бензиновой фракции, а в основной колонне всех или части нефтяных фракций бензиновой, керосиновой, дизельной и мазута, согласно изобретению, наверху основной колонны и в ее емкости орошения поддерживается вакуум с помощью вакуумсоздающей системы. Предпочтительно, чтобы в кубе основной колонны поддерживалось давление, близкое к атмосферному для нормальной работы насосов, откачивающих кубовый продукт, при этом в колонне отбензинивания необходимо поддерживать такой отбор бензина и четкость разделения фракций, который обеспечивает максимально возможную степень конденсации паров бензина и воды в холодильнике и емкости орошения основной колонны. Кроме того, предпочтительно выводить из основной колонны всю дизельную фракцию одним потоком. Промышленная применимость изобретения обеспечена тем, что снижение давления наверху основной колонны (приблизительно в три раза по сравнению с существующими способами) приводит к увеличению доли отгона в сечении питания основной колонны и к увеличению относительной летучести разделяемых продуктов, а также к увеличению внутреннего флегмового числа. В результате резко улучшается четкость разделения, что позволяет существенно увеличить отбор наиболее ценных "светлых" нефтепродуктов, с характеристиками, соответствующими, предъявляемыми к таким продуктам товарным нормам.The invention relates to the field of primary distillation of oil and can be used for the separation of oil in installations AVT. The essence of the invention lies in the fact that in the method of obtaining oil fractions in the topping column and the main distillation column with getting in the topping column gasoline fraction, and in the main column all or part of oil fractions of gasoline, kerosene, diesel and fuel oil, according to the invention, on top of the main column and vacuum is maintained in its irrigation tank by means of a vacuum-generating system. Preferably, in the bottom of the main column, pressure is maintained close to atmospheric for normal operation of pumps evacuating the bottom product, while in the topping column it is necessary to maintain such gasoline selection and clarity of separation of fractions that provides the highest possible degree of condensation of gasoline and water in the refrigerator and main column irrigation tanks. In addition, it is preferable to remove the entire diesel fraction from the main column in a single stream. Industrial applicability of the invention is ensured by the fact that a decrease in pressure at the top of the main column (approximately three times compared to existing methods) leads to an increase in the proportion of distillate in the feed section of the main column and to an increase in the relative volatility of the separated products, as well as an increase in the internal reflux ratio. As a result, the clarity of separation improves dramatically, which allows a substantial increase in the selection of the most valuable "light" petroleum products, with characteristics corresponding to the product standards for such products.

EA199800703A 1998-05-13 1998-05-13 Process for crude oil fractional distillation EA000712B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EA199800703A EA000712B1 (en) 1998-05-13 1998-05-13 Process for crude oil fractional distillation
PCT/EA1999/000004 WO1999058449A2 (en) 1998-05-13 1999-04-28 Method for producing oil fractions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EA199800703A EA000712B1 (en) 1998-05-13 1998-05-13 Process for crude oil fractional distillation

Publications (2)

Publication Number Publication Date
EA199800703A1 true EA199800703A1 (en) 1999-12-29
EA000712B1 EA000712B1 (en) 2000-02-28

Family

ID=8161455

Family Applications (1)

Application Number Title Priority Date Filing Date
EA199800703A EA000712B1 (en) 1998-05-13 1998-05-13 Process for crude oil fractional distillation

Country Status (2)

Country Link
EA (1) EA000712B1 (en)
WO (1) WO1999058449A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7172686B1 (en) 2002-11-14 2007-02-06 The Board Of Regents Of The University Of Oklahoma Method of increasing distillates yield in crude oil distillation
RU2679660C1 (en) * 2018-10-01 2019-02-12 Александр Владимирович Данилов Method for processing liquid hydrocarbons
CN109745723B (en) * 2018-12-29 2021-07-06 恒天纤维集团有限公司 Double-tower continuous feed rectification system and control method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239618A (en) * 1979-05-10 1980-12-16 Mobil Oil Corporation Twin tower distillation of crude oil
US4673490A (en) * 1985-08-23 1987-06-16 Fluor Corporation Process for separating crude oil components
RU2079539C1 (en) * 1992-04-08 1997-05-20 Научно-техническая фирма "ИКТ Сервис" Method of producing oil fractions
RU2057783C1 (en) * 1992-05-12 1996-04-10 Научно-техническая фирма (МП) "ИТК Сервис" Process for producing oil fractions

Also Published As

Publication number Publication date
EA000712B1 (en) 2000-02-28
WO1999058449A3 (en) 2000-03-02
WO1999058449A2 (en) 1999-11-18

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG MD TJ TM RU