EP1661966A1 - Method for producing low-viscous marine fuel - Google Patents

Method for producing low-viscous marine fuel Download PDF

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Publication number
EP1661966A1
EP1661966A1 EP03789663A EP03789663A EP1661966A1 EP 1661966 A1 EP1661966 A1 EP 1661966A1 EP 03789663 A EP03789663 A EP 03789663A EP 03789663 A EP03789663 A EP 03789663A EP 1661966 A1 EP1661966 A1 EP 1661966A1
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EP
European Patent Office
Prior art keywords
catalytic cracking
fraction
fractions
straight
vacuum
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.)
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Application number
EP03789663A
Other languages
German (de)
French (fr)
Other versions
EP1661966A4 (en
Inventor
Valentin Filippovich Bolshakov
Vladimir Nikitovich Kozlov
Aleksandr Valentinovich Bolshakov
Tamara Nikitovna Mitusova
Sergey Olegovich Shinkov
Aleksandr Sergeevich Knyazikov
Valery Konstantinovich Zhukov
Vladimir Nikolaevich Shevchenko
Tatyana Feliksovna Ovchinnikova
Igor Robertovich Vugin
Petr Sergeevich Goncharov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Key Chain Ltd
Zakrytoe Aktsionernoe Obschestvo " Pioner-Petroleum"
Original Assignee
Key Chain Ltd
Zakrytoe Aktsionernoe Obschestvo " Pioner-Petroleum"
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 Key Chain Ltd, Zakrytoe Aktsionernoe Obschestvo " Pioner-Petroleum" filed Critical Key Chain Ltd
Publication of EP1661966A1 publication Critical patent/EP1661966A1/en
Publication of EP1661966A4 publication Critical patent/EP1661966A4/en
Withdrawn legal-status Critical Current

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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
    • C10G55/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process
    • C10G55/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process plural serial stages only
    • C10G55/06—Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process plural serial stages only including at least one catalytic cracking step

Definitions

  • the invention relates to petroleum processing, more particularly to a method for producing a low-viscous marine fuel used for ship or boiler plants.
  • a low-viscous marine fuel may be produced by straight-run petroleum refming and by processing of secondary products (e.g., distillates produced by processes of catalytic, thermal cracking and carbonization). Rigid operational demands are made to such fuels in respect of their performance, namely improvement in their lubricity and reduction in corrosiveness.
  • secondary products e.g., distillates produced by processes of catalytic, thermal cracking and carbonization.
  • a method of producing a low-viscous marine fuel comprises fuel oil processing by using vacuum distillation, thermal cracking of distillate fractions, viscosity breaking of the residue, rectification separation of the thermal cracking and viscosity breaking products in an atmospheric column for producing kerosene-gas oil fraction and the residue in the atmospheric column.
  • the kerosene-gas oil fraction is then used as a low-viscous marine fuel, the atmospheric column residue as a high-viscous marine fuel, and a mixture of the kerosene-gas oil fraction and the residue as a heavy marine fuel or high-viscous marine fuel (RU 2176263, C 10 G 9/00, 2001).
  • a disadvantage of the above method is a low yield of a low-viscous marine fuel, since it intended, mainly, for producing heavy fuels.
  • a method for producing a low-viscous marine fuel which comprises petroleum refining at a atmospheric vacuum pipe heaters (AVPH-plants), separation the fractions 160 - 360°C, 160 - 420°C and 300 - 480°C; afterwards these fractions are mixed in the weight ratio 40:40:20 - 60:30:10 for producing a straight-run distillate, catalytic cracking of the wide vacuum fraction 250 - 550°C with separation of the catalytic cracking distillate of 160 - 400°C, and then this distillate is compounded with a straight-run distillate in the ratio of 20:80 - 60:40 (RU 2074232, C 10 G 57/00, 1997).
  • the said method does not enable to produce a low-viscous marine fuel with the required specifications in respect of calorific value, cetane number and lubricity.
  • the closest to the inventive solution is a method producing low-viscous marine fuel method, which comprises oil atmospheric and vacuum refining with separation of straight-rub and vacuum fractions, catalytic cracking of a wide fraction with separation of catalytic cracking distillate and the separated fractions are compounded for producing the target product (RU 2149888, C 10 L 1/04, 2000).
  • the separated fractions namely: 155 - 360°C, 155 - 435 °C and 220 - 550°C are mixed in the weight ratio 45:55:5 - 55:53:10, thus obtaining straight-run distillate.
  • the wide vacuum fraction which is boiled out in the temperature range from 240 to 560°C, is subjected to hydro refining and then to catalytic cracking, thus separating catalytic cracking distillate boiling out in the temperature range from 155 to 420°C? which is then compounded with straight-run distillate in the ratio 15:85 - 65:35.
  • a disadvantage of this known method is a low oil-to fuel yield as well as a low cetane number of the fuel produced and its insufficient lubricity.
  • the objective of this invention is to develop a method for producing a low-viscous marine fuel enabling to increase the oil-to-fuel yield, expand raw materials and improve physical and chemical properties of the fuel.
  • a method of producing a low-viscous marine fuel comprising atmospheric vacuum distillation of oil with selection of straight-run and vacuum fractions, catalytic cracking of a wide vacuum fraction associated with separation of a catalytic cracking distillate and compounding of the selected fractions for the purpose of obtaining the target product
  • the vacuum fraction is selected boiling out in the temperature range from 360 to 490°C, which fraction than is purified by a selective solvent, and thus obtained highly aromatized extract is compounded with the straight-run fractions and the catalytic cracking distillate in the ratio of 1:69:30 - 20:25:25, respectively.
  • the distinctive features under this invention consist in that atmospheric and vacuum distillation the vacuum fraction is selected, which boil out in the temperature range from 360 to 490°C; then this fractions purified with a selective solvent, and thus obtained highly aromatized extract is compounded with straight-run fractions and the catalytic cracking distillate in the ratio of 1:69:30 - 20:25:55, respectively.
  • the said distinctive features enable, when using this method at refmeries, to increase the oil target product, expand raw materials due to qualified use of the residual components at petroleum refineries.
  • Oil at an AVPH-plant (atmospheric vacuum pipe heaters) is distilled for obtaining the straight-run fractions in the temperature ranges from 180 to 360°C and from 270 to 380°C and the vacuum fractions in the temperature range from 360 to 490°C and from 330 to 540°C.
  • the fraction of 330 - 540°C is sent to fluidized-bed catalytic cracking plant in the presence of a zeolite catalyst containing a promoter with serum-lowering functions.
  • Distillate is separated from the cracking products, which boils out in the temperature range from 160 to 420°C
  • the vacuum fraction 360 - 490 °C is purified a selective solvent, e.g., N-methylpirrolidone, for obtaining base oils and a highly aromatized extract.
  • the obtained components namely the highly aromatized extract, straight-run fractions 180 n- 360 °C and 270 - 380 °C as well as catalytic cracking distillate are compounded in the ratios of 1:50:19:30, respectively.
  • the method is carried out mainly at an AVPH-plant according to the conditions of Example 1, but the straight-run fraction 169 - 380°C, the narrow vacuum fractions 360 - 420°C and 420 - 490°C, the wide vacuum fraction 330 - 540 °C, the catalytic cracking distillate 200 - 370°C being separated from the latter.
  • the narrow Vacuum fractions are subjected to joint selective purification for the purpose of obtaining the highly aromatized extract.
  • the obtained components, namely: the highly aromatized extract, the straight-run fraction and the catalytic cracking distillate are compounded in the ratios 20:25:55 ⁇ respectively.
  • the method is carried out in the conditions of Example 2, but 40 % of the carbonization process fraction 160 - 420°C are introduced into the target product.
  • the inventive method is industrially applicable and may be most successfully used in petroleum processing for producing a low-viscous marine fuel intended for use in marine and boiler plants.
  • the inventive method may be implemented with the use of known standard equipment and dies not require developing and creating any special tooling.

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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 relates to petroleum processing, more precisely to a method for producing a low-viscous marine fuel used for ship or boiler plants. The inventive method involves oil atmospheric vacuum distillation associated with separation of straight-run and vacuum fractions, catalytic cracking of a wide fraction associated with separation of a catalytic cracking distillate. The vacuum fraction boiling at a temperature ranging from 360 to 490 °C is cleaned by selective solvent. Afterwards, the thus obtained highly aromatised extract is compounded with the straight-run fractions and catalytic cracking distillate at a ratio of 1:69:30-20:25:55 respectively, the target product being obtained. In addition, the straight-run fractions whose boiling point ranges from 160 to 380 °C are separated, and the wide fraction whose boiling point ranges from 330 to 540 °C is exposed to catalytic cracking associated wit separation of a catalytic cracking distillate boiling at a temperature ranging from 160 to 420 °C. Up to 50 mass % coking fraction boiling at a temperature of 160 - 420 °C could also be added to the target product.

Description

    Field of the Invention
  • The invention relates to petroleum processing, more particularly to a method for producing a low-viscous marine fuel used for ship or boiler plants.
    • Prior Art
  • A low-viscous marine fuel may be produced by straight-run petroleum refming and by processing of secondary products (e.g., distillates produced by processes of catalytic, thermal cracking and carbonization). Rigid operational demands are made to such fuels in respect of their performance, namely improvement in their lubricity and reduction in corrosiveness.
  • A method of producing a low-viscous marine fuel is known in the art, which comprises fuel oil processing by using vacuum distillation, thermal cracking of distillate fractions, viscosity breaking of the residue, rectification separation of the thermal cracking and viscosity breaking products in an atmospheric column for producing kerosene-gas oil fraction and the residue in the atmospheric column. The kerosene-gas oil fraction is then used as a low-viscous marine fuel, the atmospheric column residue as a high-viscous marine fuel, and a mixture of the kerosene-gas oil fraction and the residue as a heavy marine fuel or high-viscous marine fuel (RU 2176263, C 10 G 9/00, 2001).
  • A disadvantage of the above method is a low yield of a low-viscous marine fuel, since it intended, mainly, for producing heavy fuels.
  • Also a method for producing a low-viscous marine fuel is known, which comprises petroleum refining at a atmospheric vacuum pipe heaters (AVPH-plants), separation the fractions 160 - 360°C, 160 - 420°C and 300 - 480°C; afterwards these fractions are mixed in the weight ratio 40:40:20 - 60:30:10 for producing a straight-run distillate, catalytic cracking of the wide vacuum fraction 250 - 550°C with separation of the catalytic cracking distillate of 160 - 400°C, and then this distillate is compounded with a straight-run distillate in the ratio of 20:80 - 60:40 (RU 2074232, C 10 G 57/00, 1997).
  • However, the said method does not enable to produce a low-viscous marine fuel with the required specifications in respect of calorific value, cetane number and lubricity.
  • The closest to the inventive solution is a method producing low-viscous marine fuel method, which comprises oil atmospheric and vacuum refining with separation of straight-rub and vacuum fractions, catalytic cracking of a wide fraction with separation of catalytic cracking distillate and the separated fractions are compounded for producing the target product (RU 2149888, C 10 L 1/04, 2000).The separated fractions, namely: 155 - 360°C, 155 - 435 °C and 220 - 550°C are mixed in the weight ratio 45:55:5 - 55:53:10, thus obtaining straight-run distillate. The wide vacuum fraction, which is boiled out in the temperature range from 240 to 560°C, is subjected to hydro refining and then to catalytic cracking, thus separating catalytic cracking distillate boiling out in the temperature range from 155 to 420°C? which is then compounded with straight-run distillate in the ratio 15:85 - 65:35. A disadvantage of this known method is a low oil-to fuel yield as well as a low cetane number of the fuel produced and its insufficient lubricity.
    • Summary of the invention
  • The objective of this invention is to develop a method for producing a low-viscous marine fuel enabling to increase the oil-to-fuel yield, expand raw materials and improve physical and chemical properties of the fuel.
  • In order to achieve the stated objective, in a method of producing a low-viscous marine fuel, comprising atmospheric vacuum distillation of oil with selection of straight-run and vacuum fractions, catalytic cracking of a wide vacuum fraction associated with separation of a catalytic cracking distillate and compounding of the selected fractions for the purpose of obtaining the target product the vacuum fraction is selected boiling out in the temperature range from 360 to 490°C, which fraction than is purified by a selective solvent, and thus obtained highly aromatized extract is compounded with the straight-run fractions and the catalytic cracking distillate in the ratio of 1:69:30 - 20:25:25, respectively.
  • The distinctive features under this invention consist in that atmospheric and vacuum distillation the vacuum fraction is selected, which boil out in the temperature range from 360 to 490°C; then this fractions purified with a selective solvent, and thus obtained highly aromatized extract is compounded with straight-run fractions and the catalytic cracking distillate in the ratio of 1:69:30 - 20:25:55, respectively.
  • The analysis of known technical solutions in respect of methods for producing a low-viscous marine fuel shows that the totality of the essential features in accordance with this invention is new, and the known solutions do not contain features similar to the distinctive features of the inventive method.
  • The said distinctive features enable, when using this method at refmeries, to increase the oil target product, expand raw materials due to qualified use of the residual components at petroleum refineries.
  • It is preferred to separate straight-run fractions, boiling out in the temperature range from 160 to 380°C, and subject the wide vacuum fraction, boiling out in the temperature range from 330 to 540°C, selecting catalytic cracking distillate, boiling out in the temperature.
  • It is also expedient to introduce to the target product up to 50 per cent by weight the cocking process fraction, boiling out in the temperature range from 160 to 420°C.
  • The essence of the inventive method is illustrated by examples given below.
    • Example 1
  • Oil at an AVPH-plant (atmospheric vacuum pipe heaters) is distilled for obtaining the straight-run fractions in the temperature ranges from 180 to 360°C and from 270 to 380°C and the vacuum fractions in the temperature range from 360 to 490°C and from 330 to 540°C. The fraction of 330 - 540°C is sent to fluidized-bed catalytic cracking plant in the presence of a zeolite catalyst containing a promoter with serum-lowering functions. Distillate is separated from the cracking products, which boils out in the temperature range from 160 to 420°C The vacuum fraction 360 - 490 °C is purified a selective solvent, e.g., N-methylpirrolidone, for obtaining base oils and a highly aromatized extract. The obtained components, namely the highly aromatized extract, straight-run fractions 180 n- 360 °C and 270 - 380 °C as well as catalytic cracking distillate are compounded in the ratios of 1:50:19:30, respectively.
    • Example 2
  • The method is carried out mainly at an AVPH-plant according to the conditions of Example 1, but the straight-run fraction 169 - 380°C, the narrow vacuum fractions 360 - 420°C and 420 - 490°C, the wide vacuum fraction 330 - 540 °C, the catalytic cracking distillate 200 - 370°C being separated from the latter. The narrow Vacuum fractions are subjected to joint selective purification for the purpose of obtaining the highly aromatized extract. The obtained components, namely: the highly aromatized extract, the straight-run fraction and the catalytic cracking distillate are compounded in the ratios 20:25:55< respectively.
    • Example 3
  • The method is carried out in the conditions of Example 2, but 40 % of the carbonization process fraction 160 - 420°C are introduced into the target product.
  • The characteristics of the components and the target product under Examples 1 - 3 are shown in Tables 1 and 2, respectively.
    • Industrial Applicability
  • The inventive method is industrially applicable and may be most successfully used in petroleum processing for producing a low-viscous marine fuel intended for use in marine and boiler plants. The inventive method may be implemented with the use of known standard equipment and dies not require developing and creating any special tooling. Table 1
    Parameter Names Straight-run Fractions Catalytic cracking distillates Extract Carbonization Fraction 160-420°C
    180 - 360 °C 270 - 380 °C 160 - 380 °C 160 - 420 °C 200 - 370 °C
    Density at 20°C, kg/m3 842 882 850 886 876 898 896
    Cinematic viscosity at 20°C, mm2/s 5.20 17.52 5.94 6.70 5.64 - 38.9
    Conditional viscosity (CV) at 20°C, degrees - 2.66 1.47 1,30 - - 5.1
    Flash point, °C 74 132 85 74 82 216 85
    Congelation point, °C -13 +5 -6 -9 -11 +23 -2
    Total sulfur, weight per cent 0.72 1.52 0.8 1.8 1.4 1.8 1.2
    Sore sulfur, weight per cent 0.0066 0.0097 0.0072 0.009 0.0385 0.0064 -
    Coking ability, % 0.01 0.017 0.013 0.07 0.11 1.2 0.68
    Table 2
    Parameters Norm under specification Parameter values
    Example 1 Example 2 Example 3
    Density at 20°C Not more than 890 863 877 875
    Cetane number Not less that 40 41 40 40
    Sulfur fraction of total mass, % Not more than 1.5 1.21 1.55 1.61
    Coking ability, % Not more than 2 0.039 0.28 0.40
    Cinematic viscosity at 20°C, mm2/s Not more than 11.4 6.95 11.2 10.4
    Iodine number, g J2 per 100 g of fuel Not more than 20 7.2 10.5 14.6

Claims (3)

  1. A method of producing a low-viscous marine fuel, comprising atmospheric vacuum distillation of oil with selection of straight-run and vacuum fractions, catalytic cracking of a wide vacuum fraction associated with separation of a catalytic cracking distillate and compounding of the selected fractions for the purpose of obtaining the target product, characterized in that the vacuum fraction is selected boiling out in the temperature range from 360 to 490°C, which fraction than is purified by a selective solvent, and thus obtained highly aromatized extract is compounded with the straight-run fractions and the catalytic cracking distillate in the ratio of 1:69:30 - 20:25:25, respectively.
  2. The method according to Claim 1, characterized in that the straight-run fractions, boiling out in the temperature range from 160 to 380°C, and the wide vacuum fraction, boiling out in the temperature range from 339 to 540°C, is subjected to catalytic cracking, selecting catalytic cracking distillate, boiling out in the temperature range from 160 to 420°C.
  3. The method according to Claims 1 or 2, characterized in that up to 50 per cent by weight the cocking process fraction, boiling out in the temperature range from 160 to 420°C, is introduced into the target product.
EP03789663A 2003-07-15 2003-10-23 Method for producing low-viscous marine fuel Withdrawn EP1661966A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2003121343/04A RU2232793C1 (en) 2003-07-15 2003-07-15 Low-viscosity marine fuel production process
PCT/RU2003/000449 WO2005005580A1 (en) 2003-07-15 2003-10-23 Method for producing low-viscous marine fuel

Publications (2)

Publication Number Publication Date
EP1661966A1 true EP1661966A1 (en) 2006-05-31
EP1661966A4 EP1661966A4 (en) 2011-08-24

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EP03789663A Withdrawn EP1661966A4 (en) 2003-07-15 2003-10-23 Method for producing low-viscous marine fuel

Country Status (4)

Country Link
EP (1) EP1661966A4 (en)
AU (1) AU2003296288A1 (en)
RU (1) RU2232793C1 (en)
WO (1) WO2005005580A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7708876B2 (en) * 2005-07-18 2010-05-04 Oiltreid Limited Liabilities Company Heavy fuel oil

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2297443C2 (en) * 2005-07-18 2007-04-20 Общество с ограниченной ответственностью "Ойлтрейд" Light petroleum fuel
AR058345A1 (en) 2005-12-16 2008-01-30 Petrobeam Inc SELF-SUPPORTED COLD HYDROCARBONS
RU2570647C1 (en) * 2014-07-21 2015-12-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" Method of producing low-viscosity marine fuel
RU2652634C1 (en) * 2017-07-18 2018-04-28 Общество с ограниченной ответственностью "ЛУКОЙЛ-Волгограднефтепереработка" (ООО "ЛУКОЙЛ-Волгограднефтепереработка") Method of obtaining low-viscosity marine fuel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6354496A (en) * 1986-08-25 1988-03-08 Kiyouseki Seihin Gijutsu Kenkyusho:Kk Fuel oil for diesel engine

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Publication number Priority date Publication date Assignee Title
US4695367A (en) * 1986-03-24 1987-09-22 The M. W. Kellogg Company Diesel fuel production
RU2149888C1 (en) * 1999-04-07 2000-05-27 Уфимский государственный нефтяной технический университет Method for production of low-viscosity marine fuel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6354496A (en) * 1986-08-25 1988-03-08 Kiyouseki Seihin Gijutsu Kenkyusho:Kk Fuel oil for diesel engine

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
ICF CONSULTING GROUP: "IN-USE MARINE DIESEL FUEL", 20 August 1999 (1999-08-20), U.S.ENVIRONMENTAL PROTECTION AGENCY, XP002650074, pages 1-20, * SEE TABLES 2,3,4 * *
PAULA J. SPREUTELS ET AL.: "EVERYTHING YOU NEED TO KNOW ABOUT MARINE FUELS", 31 March 2001 (2001-03-31), FUEL AND MARINE MARKETING, LLC, XP002650073, pages 1-25, * SEE TABLES 1,2. SEE PAGE 6, LINE 1-PAGE 7, LAST LINE * *
S.V. KOTOV ET AL.: "MARINE FUEL OIL ON A MIXED BASE", CHEMISTRY AND TECHNOLOGGY OF FUELS AND OILS, vol. 37, 30 May 2001 (2001-05-30), pages 179-182, XP002648898, *
See also references of WO2005005580A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7708876B2 (en) * 2005-07-18 2010-05-04 Oiltreid Limited Liabilities Company Heavy fuel oil

Also Published As

Publication number Publication date
RU2003121343A (en) 2005-02-10
AU2003296288A8 (en) 2005-01-28
RU2232793C1 (en) 2004-07-20
EP1661966A4 (en) 2011-08-24
AU2003296288A1 (en) 2005-01-28
WO2005005580A1 (en) 2005-01-20

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