EP0432858A1 - Verfahren zur Entfernung von Wasserstoffsulfid aus Rohöl - Google Patents

Verfahren zur Entfernung von Wasserstoffsulfid aus Rohöl Download PDF

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Publication number
EP0432858A1
EP0432858A1 EP90250274A EP90250274A EP0432858A1 EP 0432858 A1 EP0432858 A1 EP 0432858A1 EP 90250274 A EP90250274 A EP 90250274A EP 90250274 A EP90250274 A EP 90250274A EP 0432858 A1 EP0432858 A1 EP 0432858A1
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EP
European Patent Office
Prior art keywords
hydrogen sulfide
gas
stripping
crude petroleum
stripping gas
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.)
Granted
Application number
EP90250274A
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English (en)
French (fr)
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EP0432858B1 (de
Inventor
Masaki C/O Mitsubishi Jukogyo K.K. Iijima
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Publication of EP0432858A1 publication Critical patent/EP0432858A1/de
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    • 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
    • C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for

Definitions

  • the present invention relates to a process for removing hydrogen sulfide from crude pertoleum.
  • a typical prior technique for removing hydrogen sulfide from crude petroleum is the process of so-called cold stripping.
  • the cold stripping is carried out by supplying the crude petroleum 101 to be freed from hydrogen sulfide to a hydrogen sulfide stripping column 102, in which the crude petroleum is brought into contact with a stripping gas 103 for removing hydrogen sulfide through a series of trays or plates or over a bulk of packings in counterflow with the gas.
  • hydrogen sulfide contained in the crude petroleum is stripped out by the stripping gas together with the light hydrocarbon gas components of the crude petroleum and is exhausted from the column 102 as a waste gas 104.
  • a super­atmospheric pressure is prevailing in the lower part of the column 102.
  • the so stripped oil 105 is then fed to an oil storage tank 106 where the pressure of the oil is releaved to atmospheric pressure and the then liberated gas is exhausted as waste gas 107 and the oil is supplied there from to further processing as the treated crude oil 108.
  • the present invention has been achieved basing upon the stand of the technique described above.
  • the object of the present invention is to provide a novel process for removing hydrogen sulfide from crude petroleum in which there is scarce loss not only in the stripping gas for removing hydrogen sulfide but also in the useful light petroleum fractions of crude petroleum, such as, propane, isobutane and so on.
  • a process for removing hydrogen sulfide from crude petroleum which comprises contacting the crude petroleum to be freed from hydrogen sulfide with a stripping gas for removing hydrogen sulfide in a hydrogen sulfide stripping column, supplying the stripping gas now containing the thus stripped hydrogen sulfide to a hydrogen sulfide absorbing tower, separating the stripping gas from hydrogen sulfide in said absorbing tower by contacting the gas with a hydrogen sulfide absorbing agent to absorb hydrogen sulfide therein and returning the hydrogen sulfide stripping gas now freed from hydrogen sulfide to said hydrogen sulfide stripping column under compresion to a superatmospheric pressure in order to effect recirculation of the gas.
  • the stripping gas for removing hydrogen sulfide to be used in the process according to the present invention there may be enumerated those which have commonly been employed in the cold stripping process of the prior art, such as for example, natural gases containing methane as the principal component (which may contain N2 and CO2).
  • the hydrogen sulfide absorbing agent there may be incorporated those which have hitherto been used in general, such as, an aqueous solution of, for example, monoethanolamine, monometyl diethanolamine, diethanol­amine, diglycolamine and sulfinol.
  • the exhaust gas exhausted from the hydrogen sulfide stripping column consists mainly of the stripping gas for removing hydrogen sulfide and contains now a large amount of hydrogen sulfide stripped out of the crude petroleum and a considerable amount of various light petroleum components of the crude petroluem, such as, propane, isobutane, n-butane, isopentane, n-pentane, hexane and so on, stripped concurrently from the crude petroleum.
  • This exhaust gas is then supplied to the hydrogen sulfide absorbing tower operated with the hydrogen sulfide absorbing agent, such as, an aqueous monoethanolamine solution etc., as mentioned above, so as to cause an effective contact of the gas with the absorbing agent in counterflow, in order to remove therein only hydrogen sulfide from the exhaust gas.
  • the resulting gas mixture freed from hydrogen sulfide is then returned to the hydrogen sulfide stripping tower at a lower portion thereof using a gas recirculator under compression at a superatmospheric pressur, in order to effect recirculation of the gas mixture.
  • the process according to the present invention realizes stripping off of hydrogen sulfide using a stripping gas almost saturated with the light petroleum components of the crude petroleum to be subjected to the hydrogen sulfide removal by incorporating recirculation of the stripping gas under separation of the amount of hydrogen sulfide stripped out of the crude peroleum and, hence, no substantial reduction in the useful light petroleum components of the resulting treated crude oil occurs.
  • the crude petroleum 1 having a content of hydrogen sulfide is supplied to a hydrogen sulfide stripping column 2 and is subjected to stripping by a stripping gas 3 which has been freed from hydrogen sulfide.
  • the hydrogen sulfide absorbing agent there may be used an aqueous solution of monoethanolamine, monomethyl diethanolamine, diethanolamine, diglycolamine, sulfinol and so on.
  • the bottom discharge 11 of spent hydrogen sulfide absorbing agent containing the absorbed hydrogen sulfide from the absorbing tower 9 is sent by a pump 12 to a regeneration apparatus 14 for regenerating the hydrogen sulfide absorbing agent, where it is freed from hydregen sulfide 15 and the thus regenerated absorbing agent is then returned to the hydrogen sulfide absorbing tower 9.
  • the recirculated stripping gas 16 freed from hydrogen sulfide is passed to a gas recirculator 17, which propels the gas to a lower portion of the stripping column 2 as the refreshed stripping gas under compression upto a predetermined superatmospheric pressure.
  • the so treated crude oil 5 freed from hydrogen sulfide is supplied to a crude oil tank 6, where the pressure of the oil is releaved to atmospheric pressure and the then liberated gas components are discharged from the tank as waste gas 7.
  • the resulting treated crude oil is supplied therefrom to further processing 8.
  • Tables 1 and 2 below the process according to the present invention and the conventional cold stripping process are compared for their particulars, wherein Table 1 gives a comparison as to the running condition of the process and Table 2 represents a comparison as to the practical results of the process.
  • the product yield namely the ratio of the amount of treated crude oil to the amount of original crude petroleum, of 98.43 % in the conventional process was able to increase upto that of 99.41 % in the process according to the present invention.
  • a hydrocarbon gas freed from hydrogen sulfide that has hitherto been discarded without use can be recovered in an amount of 736 Nm3/hr at a processing rate of 100,000 barrels per day.
  • the conventional process consumes 4350 Nm3/hr of combustible gas (natural gas) as the stripping gas for removing hydrogen sulfide
  • the process according to the present invention requires a consumption of combustible gas, namely, the recovered hydrocarbon gas, of 290 Nm3/hr for the fuel of the reboiler for regenerating the hydrogen sulfide absorbing agent and an electric power of 150 kW-hr/hr for actuating the gas recirculator and pump.

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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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP19900250274 1989-11-15 1990-11-02 Verfahren zur Entfernung von Wasserstoffsulfid aus Rohöl Expired - Lifetime EP0432858B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP29497289A JPH0765053B2 (ja) 1989-11-15 1989-11-15 原油中の硫化水素の除去方法
JP294972/89 1989-11-15

Publications (2)

Publication Number Publication Date
EP0432858A1 true EP0432858A1 (de) 1991-06-19
EP0432858B1 EP0432858B1 (de) 1999-03-03

Family

ID=17814689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900250274 Expired - Lifetime EP0432858B1 (de) 1989-11-15 1990-11-02 Verfahren zur Entfernung von Wasserstoffsulfid aus Rohöl

Country Status (3)

Country Link
EP (1) EP0432858B1 (de)
JP (1) JPH0765053B2 (de)
DE (1) DE69032972T2 (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317617A (en) * 1996-09-28 1998-04-01 Capcis Ltd Removing sulphur compounds from liquid hydrocarbons
RU2578155C1 (ru) * 2015-01-29 2016-03-20 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Установка подготовки сероводородсодержащей нефти
RU2586157C1 (ru) * 2015-03-11 2016-06-10 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Способ подготовки сероводородсодержащей нефти
US9988580B2 (en) 2014-04-18 2018-06-05 Amperage Energy Inc. System and method for removing hydrogen sulfide from oilfield effluents
RU2664652C1 (ru) * 2018-02-06 2018-08-21 Открытое акционерное общество "Славнефть-Ярославнефтеоргсинтез" (ОАО "Славнефть-ЯНОС") Способ очистки от сероводорода мазута и нефтяных фракций - компонентов мазута
US10550337B2 (en) 2017-08-01 2020-02-04 GAPS Technology, LLC. Chemical compositions and methods for remediating hydrogen sulfide and other contaminants in hydrocarbon based liquids and aqueous solutions without the formation of precipitates or scale
US10858595B2 (en) 2017-08-01 2020-12-08 Gaps Technology, Llc Chemical solution and methods of using same for remediating hydrogen sulfide and other contaminants in petroleum based and other liquids
US10913911B1 (en) 2019-09-20 2021-02-09 Gaps Technology Llc Chemical compositions and treatment systems and treatment methods using same for remediating H2S and other contaminants in gasses
US11286433B2 (en) 2017-08-01 2022-03-29 Gaps Technology, Llc Compositions and methods for remediating hydrogen sulfide in hydrocarbon based liquids
US11512258B2 (en) 2017-08-01 2022-11-29 GAPS Technology, LLC. Chemical compositions and methods of using same for remediating low to moderate amounts of sulfur-containing compositions and other contaminants in liquids
US11549064B2 (en) 2019-09-20 2023-01-10 Gaps Technology, Llc Chemical compositions and treatment systems and treatment methods using same for remediating H2S and other contaminants in fluids, including liquids,gasses and mixtures thereof
US11613710B2 (en) 2017-08-01 2023-03-28 GAPS Technology, LLC. Methods of remediating liquid compositions containing sulfur and other contaminants
US11708535B2 (en) 2021-05-07 2023-07-25 GAPS Technology, LLC. Hydrocarbon liquid based chemical compositions and treatment methods using same for remediating H2S and other contaminants in fluids and mixtures of contaminated fluids
US11813551B1 (en) 2021-11-22 2023-11-14 Viro Petroleum & Energy, LLC Hydrogen sulfide mitigation methods and systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8845885B2 (en) 2010-08-09 2014-09-30 H R D Corporation Crude oil desulfurization

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757127A (en) * 1952-11-18 1956-07-31 British Petroleum Co Stripping hydrogen sulphide from hydrofined petroleum hydrocarbons with an inert gas
EP0172408A2 (de) * 1984-07-24 1986-02-26 BASF Aktiengesellschaft Verfahren zum Entfernen von CO2 und/oder H2S aus Gasen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757127A (en) * 1952-11-18 1956-07-31 British Petroleum Co Stripping hydrogen sulphide from hydrofined petroleum hydrocarbons with an inert gas
EP0172408A2 (de) * 1984-07-24 1986-02-26 BASF Aktiengesellschaft Verfahren zum Entfernen von CO2 und/oder H2S aus Gasen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INST. PETROLEUM REV., vol. 14, December 1960, pages 393-395; T.R. SHIPSTER: "Partial removal of H2S from crude oil by stripping with natural gas" *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317617A (en) * 1996-09-28 1998-04-01 Capcis Ltd Removing sulphur compounds from liquid hydrocarbons
WO1998013441A1 (en) * 1996-09-28 1998-04-02 Capcis Limited Removal of sulphur containing compounds from liquid hydrocarbons
US9988580B2 (en) 2014-04-18 2018-06-05 Amperage Energy Inc. System and method for removing hydrogen sulfide from oilfield effluents
RU2578155C1 (ru) * 2015-01-29 2016-03-20 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Установка подготовки сероводородсодержащей нефти
RU2586157C1 (ru) * 2015-03-11 2016-06-10 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Способ подготовки сероводородсодержащей нефти
US10550337B2 (en) 2017-08-01 2020-02-04 GAPS Technology, LLC. Chemical compositions and methods for remediating hydrogen sulfide and other contaminants in hydrocarbon based liquids and aqueous solutions without the formation of precipitates or scale
US10858595B2 (en) 2017-08-01 2020-12-08 Gaps Technology, Llc Chemical solution and methods of using same for remediating hydrogen sulfide and other contaminants in petroleum based and other liquids
US11286433B2 (en) 2017-08-01 2022-03-29 Gaps Technology, Llc Compositions and methods for remediating hydrogen sulfide in hydrocarbon based liquids
US11512258B2 (en) 2017-08-01 2022-11-29 GAPS Technology, LLC. Chemical compositions and methods of using same for remediating low to moderate amounts of sulfur-containing compositions and other contaminants in liquids
US11613710B2 (en) 2017-08-01 2023-03-28 GAPS Technology, LLC. Methods of remediating liquid compositions containing sulfur and other contaminants
RU2664652C1 (ru) * 2018-02-06 2018-08-21 Открытое акционерное общество "Славнефть-Ярославнефтеоргсинтез" (ОАО "Славнефть-ЯНОС") Способ очистки от сероводорода мазута и нефтяных фракций - компонентов мазута
US10913911B1 (en) 2019-09-20 2021-02-09 Gaps Technology Llc Chemical compositions and treatment systems and treatment methods using same for remediating H2S and other contaminants in gasses
US11549064B2 (en) 2019-09-20 2023-01-10 Gaps Technology, Llc Chemical compositions and treatment systems and treatment methods using same for remediating H2S and other contaminants in fluids, including liquids,gasses and mixtures thereof
US11708535B2 (en) 2021-05-07 2023-07-25 GAPS Technology, LLC. Hydrocarbon liquid based chemical compositions and treatment methods using same for remediating H2S and other contaminants in fluids and mixtures of contaminated fluids
US11813551B1 (en) 2021-11-22 2023-11-14 Viro Petroleum & Energy, LLC Hydrogen sulfide mitigation methods and systems

Also Published As

Publication number Publication date
EP0432858B1 (de) 1999-03-03
JPH0765053B2 (ja) 1995-07-12
DE69032972T2 (de) 1999-07-08
DE69032972D1 (de) 1999-04-08
JPH03157490A (ja) 1991-07-05

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