WO1997049785A2 - Method for purification of petroleum and petroleum products from sulfur compounds - Google Patents

Method for purification of petroleum and petroleum products from sulfur compounds Download PDF

Info

Publication number
WO1997049785A2
WO1997049785A2 PCT/GE1997/000002 GE9700002W WO9749785A2 WO 1997049785 A2 WO1997049785 A2 WO 1997049785A2 GE 9700002 W GE9700002 W GE 9700002W WO 9749785 A2 WO9749785 A2 WO 9749785A2
Authority
WO
WIPO (PCT)
Prior art keywords
petroleum
products
purification
sulfur compounds
water
Prior art date
Application number
PCT/GE1997/000002
Other languages
French (fr)
Other versions
WO1997049785A3 (en
Inventor
Amiran Rekhviashvili
Original Assignee
Amiran Rekhviashvili
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 Amiran Rekhviashvili filed Critical Amiran Rekhviashvili
Priority to AU30431/97A priority Critical patent/AU3043197A/en
Publication of WO1997049785A2 publication Critical patent/WO1997049785A2/en
Publication of WO1997049785A3 publication Critical patent/WO1997049785A3/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
    • C10G49/00—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00
    • C10G49/007—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00 in the presence of hydrogen from a special source or of a special composition or having been purified by a special treatment
    • 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
    • C10G32/00—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms
    • C10G32/02—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms by electric or magnetic means

Definitions

  • the present invention relates to the petroleum industry. More particularly, it relates to a method for purification of petroleum and petroleum products from sulfur compounds.
  • Sulfur compounds presented in the petroleum and petroleum products are characterized with the corrosion properties; they damage the oil-pipe-lines, the distillation and other apparatuses. Petroleum used in an internal combustion engine damages the members thereof. Sulfur oxides which are produced in the combustion products cause environmental pollution.
  • the process may be carried out by means of petroleum with the temperature 50-60° which is preliminary treated with an aqueous solutiun of 1% concentration sodium hydroxide. Petroleum without the hydrogen sulfide is contacted with the catalyst an oxidation using the oxigen of the air 13 carried out.
  • a process of earring out above mentioned reactions requires special processing using the expensive catalysts (1) with high energy loss.
  • Purification of petroleum and petroleum products from sulfur compounds is carried out also by hydrogenation, wherein sulfur compounds are contacted with the molecular hydrogen in the presence of catalysts at a temperature within the range of from about 380°C to about 420°C, at a pressure within the range of from 20 to about 70 atm (2-7 Mpa) .
  • Sulfur compounds mercaptans, sulfides, polysulfides, thiophenes, thiophanes etc.
  • Sulfur compounds mercaptans, sulfides, polysulfides, thiophenes, thiophanes etc.
  • the said process is complicated and cause deterioration of ecological conditions (2) .
  • Technical result of the invention is in simplifying the technological process in increasing its effeciency, in improving the quality of the final product and the ecological conditions.
  • the essence of the invention is in that the process of purification from sulfur compounds is carried out by means of hydrogen and oxygen obtained from the electrolysis of water.
  • a process is carried out in the electrolyzer, where the petroleum products are placed on the surface of water.
  • the hydrogen and oxygen ions obtained by the electrolysis of water are reacted with the layers of petroleum products and sulfur compounds to form suitable hydrocarbons.
  • the process of desulfurization is useful for purification not only for petroleum products, but may also be used for purification of various organic solvents and products obtained by coking coal.
  • the process is carried out in the electrolyzer (1) which is provided with the stainless steel electrodes (XI8H10T) (2). Power is fed to this electrodes from rectifier BCA-5 type (3) .
  • the electrolyzer comprises pipes (4, 5, 6) with the taps.
  • the water (7) and petroleum products (8) are introduced in the electrolyzer by the pipe (4).
  • Electrodes are powered with the direct current.
  • the water and petroleum products are passing through the electrolyzer via the pipe (9) .
  • the electrolysis is operated under the following regime:
  • Duration of electrolysis - 10 60 rain. Area of electrodes - 480 cm 2 .
  • benzine trade name AU-93 (GOST 2084-77), diesel 20 engine fuel (GOST 4749-73) and distillates of benzine (45 - 190°C) and diesel fuel (190 - 360°C) obtained by distillation of Rustavi deposit (GE) benzine.
  • T 2 - benzine temperature T 2 - benzine temperature.
  • the method of the present invention simplifyied the technological process and improved the degree of purification of final product from sulfur compounds.

Landscapes

  • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The present invention relates to the petroleum industry. More particularly, it relates to a method for production of petroleum and petroleum products. Technical result of the present invention is in the simplifying of the technological process in increasing its efficiency, in improving the quality of the final product and ecological conditions. The essence of the invention is in that the process of purification from sulfur compounds is carried out by means of hydrogen and oxygen obtained from the electrolysis of water. A process is carried out in the electrolyzer, where the petroleum and petroleum products are placed directly on the surface of water.

Description

METHOD FOR PURIFICATION OF PETROLEUM AND PETROLEUM PRODUCTS FROM SULFUR COMPOUNDS
The present invention relates to the petroleum industry. More particularly, it relates to a method for purification of petroleum and petroleum products from sulfur compounds. Sulfur compounds presented in the petroleum and petroleum products are characterized with the corrosion properties; they damage the oil-pipe-lines, the distillation and other apparatuses. Petroleum used in an internal combustion engine damages the members thereof. Sulfur oxides which are produced in the combustion products cause environmental pollution.
Content of sulfur compounds in fuel and lubricants 13 limited by relevant standards.
Known methods for the purification of petroleum and petroleum products comprising the oxidation of petroleum and petroleum products using the catalysts m the present of a base.
The process may be carried out by means of petroleum with the temperature 50-60° which is preliminary treated with an aqueous solutiun of 1% concentration sodium hydroxide. Petroleum without the hydrogen sulfide is contacted with the catalyst an oxidation using the oxigen of the air 13 carried out.
A process of earring out above mentioned reactions requires special processing using the expensive catalysts (1) with high energy loss.
Purification of petroleum and petroleum products from sulfur compounds is carried out also by hydrogenation, wherein sulfur compounds are contacted with the molecular hydrogen in the presence of catalysts at a temperature within the range of from about 380°C to about 420°C, at a pressure within the range of from 20 to about 70 atm (2-7 Mpa) . Sulfur compounds (mercaptans, sulfides, polysulfides, thiophenes, thiophanes etc.) are reacted to form suitible hydrocarbons and hydrogen sulfide respectivelly.
The said process is complicated and cause deterioration of ecological conditions (2) . Technical result of the invention is in simplifying the technological process in increasing its effeciency, in improving the quality of the final product and the ecological conditions.
The essence of the invention is in that the process of purification from sulfur compounds is carried out by means of hydrogen and oxygen obtained from the electrolysis of water. A process is carried out in the electrolyzer, where the petroleum products are placed on the surface of water.
According to the present invention the hydrogen and oxygen ions obtained by the electrolysis of water are reacted with the layers of petroleum products and sulfur compounds to form suitable hydrocarbons.
The process of desulfurization is useful for purification not only for petroleum products, but may also be used for purification of various organic solvents and products obtained by coking coal. According to the method of the present invention the process is carried out in the electrolyzer (1) which is provided with the stainless steel electrodes (XI8H10T) (2). Power is fed to this electrodes from rectifier BCA-5 type (3) . The electrolyzer comprises pipes (4, 5, 6) with the taps. The water (7) and petroleum products (8) are introduced in the electrolyzer by the pipe (4). Electrodes are powered with the direct current. The water and petroleum products are passing through the electrolyzer via the pipe (9) .
The electrolysis is operated under the following regime:
Power I - 2, 5 a Voltage V - 10 v
Duration of electrolysis - 10 : 60 rain. Area of electrodes - 480 cm2.
The results of the experiment are presented in table 1:
Figure imgf000005_0001
The samples are taken from the layer of fuel in each 10 lb minutes sample interval. Determination of sulfur compound in the petroleum products is carried out by the standard (Soviet
Standard GOST 19121-73) .
For experimental analysis there are used the following materials: benzine, trade name AU-93 (GOST 2084-77), diesel 20 engine fuel (GOST 4749-73) and distillates of benzine (45 - 190°C) and diesel fuel (190 - 360°C) obtained by distillation of Rustavi deposit (GE) benzine.
The process velocity is presented by the general formula:
25 V = f [m,∑S,V,I,t,∑(H-,0--) fTιT2]
wherein m - amount of petroleum;
∑S - total amount of sulfur compound in the petroleum;
30 V - voltage; I - watts power; t - duration of process;
∑(H',0")- amount of released hydrogen and oxygen by electrolysis of water;
35 Υι - water temperature;
T2 - benzine temperature. The method is illustrated by the following example. An experiment is carried out using the electrolyzer. The water and petroleum product by the pipe (4) is poured into electrolyzer with the equivalent amount (one liter) . Electrodes are powered with the direct current I = 2,5 a, V = 10 v. An experiment is continuing for an hour. The water and petroleum products are passing through the electrolyzer via the pipe (9) .
Thus, the method of the present invention simplifyied the technological process and improved the degree of purification of final product from sulfur compounds.

Claims

CLAIM
1. A process for purification of petroleum and petroleum products from sulfur containing compounds comprising hydrogenation reaction characterized m that said hydrogenation OL the reaction products (petroleum and petroleum products containing sulfur compounds) is carried out using a hydrogen removed by electrolysis of water, hereby the petroleum and petroleum products products are placed directly on the surface of water, additional purification being carried out using the oxygen removed by said electrolysis of water.
PCT/GE1997/000002 1996-06-24 1997-06-20 Method for purification of petroleum and petroleum products from sulfur compounds WO1997049785A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU30431/97A AU3043197A (en) 1996-06-24 1997-06-20 Method for purification of petroleum and petroleum products from sulfur compounds

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GE002399 1996-06-24
GE1996002399 1996-06-24
GE002642 1997-03-25
GE1997002642 1997-03-25

Publications (2)

Publication Number Publication Date
WO1997049785A2 true WO1997049785A2 (en) 1997-12-31
WO1997049785A3 WO1997049785A3 (en) 1998-02-12

Family

ID=26316281

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GE1997/000002 WO1997049785A2 (en) 1996-06-24 1997-06-20 Method for purification of petroleum and petroleum products from sulfur compounds

Country Status (2)

Country Link
AU (1) AU3043197A (en)
WO (1) WO1997049785A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915819A (en) * 1974-07-03 1975-10-28 Electro Petroleum Electrolytic oil purifying method
WO1993025636A1 (en) * 1992-06-08 1993-12-23 Hja-Engineering Oy Method for desulfurization of liquid fuels and petrochemical feedstocks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915819A (en) * 1974-07-03 1975-10-28 Electro Petroleum Electrolytic oil purifying method
WO1993025636A1 (en) * 1992-06-08 1993-12-23 Hja-Engineering Oy Method for desulfurization of liquid fuels and petrochemical feedstocks

Also Published As

Publication number Publication date
AU3043197A (en) 1998-01-14
WO1997049785A3 (en) 1998-02-12

Similar Documents

Publication Publication Date Title
AU656962B2 (en) Multistage system for deep desulfurization of fossil fuels
EP0638114B1 (en) Process for the desulfurization and the desalting of fossil fuels
AU659480B2 (en) Continuous process for biocatalytic desulfurization of sulfur-bearing heterocyclic molecules
US5114541A (en) Process for producing solid, liquid and gaseous fuels from organic starting material
JPH10500168A (en) Separation method of oil containing emulsion
JPH08199173A (en) Novel cracking of hydrocarbon
JPH0277492A (en) Bioelectrochemical desulfurization of petroleum
US4132631A (en) Process for petroleum refining
WO2004007645A1 (en) Sweetening of sour crudes
WO1997049785A2 (en) Method for purification of petroleum and petroleum products from sulfur compounds
US4888029A (en) Desulfurization of carbonaceous materials
Grossman Microbial removal of organic sulfur from fuels: a review of past and present approaches
US3990971A (en) Metal cyanide complex compound disposal
RU2074882C1 (en) Method of oil processing
CN1243815C (en) Process for catalyzing oxygenizing desulfurizing diesel oil
US5468626A (en) Method for separating a sulfur compound from carbonaceous materials
RU2095394C1 (en) Method for processing of bituminous high-sulfurous oils
CN1453337A (en) Combined process of refining lubricant oil solvent and extracting heavy oil, diesel oil and residual oil
KR20070100872A (en) Method for desulfurization of heavy oil
WO2002097014A1 (en) Method of refining crude oils having high organic acidity
Ehsani et al. Coal Desulfurization with Methanol/Water and Methanol/Caustic
Monticello [17] 1 Biocatalytic Desulfurization of Fossil Fuels
RU94023674A (en) Method of processing of vacuum gas oil
JPH06279768A (en) Low-temperature cracking of crude oil
EP1532227A1 (en) Sweetening of sour crudes

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH KE LS MW SD SZ UG ZW AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase in:

Ref country code: CA

NENP Non-entry into the national phase in:

Ref country code: JP

Ref document number: 98502567

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase