WO2005010126A1 - Improved stability of hydrocarbons containing asphaltenes - Google Patents
Improved stability of hydrocarbons containing asphaltenes Download PDFInfo
- Publication number
- WO2005010126A1 WO2005010126A1 PCT/US2004/023575 US2004023575W WO2005010126A1 WO 2005010126 A1 WO2005010126 A1 WO 2005010126A1 US 2004023575 W US2004023575 W US 2004023575W WO 2005010126 A1 WO2005010126 A1 WO 2005010126A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnesium
- magnesium overbased
- fuel oil
- overbased
- heavy fuel
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/1817—Compounds of uncertain formula; reaction products where mixtures of compounds are obtained
-
- 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
- C10G75/00—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general
- C10G75/04—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general by addition of antifouling agents
-
- 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
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/005—Coking (in order to produce liquid products mainly)
-
- 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
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
- C10G9/16—Preventing or removing incrustation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
- C10L1/2493—Organic compounds containing sulfur, selenium and/or tellurium compounds of uncertain formula; reactions of organic compounds (hydrocarbons, acids, esters) with sulfur or sulfur containing compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
- C10L1/183—Organic compounds containing oxygen containing hydroxy groups; Salts thereof at least one hydroxy group bound to an aromatic carbon atom
- C10L1/1832—Organic compounds containing oxygen containing hydroxy groups; Salts thereof at least one hydroxy group bound to an aromatic carbon atom mono-hydroxy
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/188—Carboxylic acids; metal salts thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
- C10L1/2431—Organic compounds containing sulfur, selenium and/or tellurium sulfur bond to oxygen, e.g. sulfones, sulfoxides
- C10L1/2437—Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters
Definitions
- the present invention relates to methods and compositions to stabilize hydrocarbon streams containing asphaltenes, and more particularly relates, in one embodiment, to methods and compositions to stabilize residual fuel oils and coker feedstocks using readily available materials.
- Residual fuel oil consists predominantly of an oil phase, the composition of which is almost entirely related to the crude oil from which it originates. In this oil phase are dispersed relatively large hydrocarbon molecules called asphaltenes. It is the nature of asphaltenes to be attracted to one another, and it is this tendency, along with size and concentration of the asphaltene molecules, that are consequences of both the crude oil type and the thermal cracking manufacturing process.
- the compositions of the various thermally cracked residual fuel oils can thus vary widely.
- the stability of a residual fuel oil can be defined as its ability to resist the formation of carbonaceous sludge during storage and handling.
- coke drum functions as a residence chamber for the oil to allow time for cracking to occur.
- the products of the cracking are coke (a highly enriched carbon polymer) which forms in the coke drum, and some quantity of cracked distillates (gasoline and gas oil boiling range) which are removed by fractionating a stream that leaves the coke drum.
- a common problem with this process is the formation of fouling (coke formation) in the process furnace. Delayed coker furnace fouling is believed to result from at least two mechanisms.
- the feed to the coker unit is typically composed of crude unit vacuum tower residue or bottoms (VTB).
- the VTB is partly routed directly as coker feed, while a portion is routed to intermediate storage.
- the storage exists as a buffer, to allow the upstream crude unit to continue producing VTB even while the coker unit is down for furnace tube decoking.
- This decoking is periodically necessary to remove the coke formed from the two mechanisms described above.
- the primary economic impact of this furnace coking or fouling includes lost production penalties and potentially shorter furnace tube life. There is thus a need to find a method and/or composition that will help stabilize thermally cracked fuel oils and coker feedstocks that is more effective than current techniques.
- an object of the present invention to provide a chemical composition for improving the stability of thermally cracked residual fuel oils. It is another object of the present invention to provide a method for treating thermally cracked residual fuel oils that improves their stability. An additional object of the invention is to provide a fuel oil that has improved stability.
- a method for stabilizing a hydrocarbon stream containing asphaltenes that involves heating the hydrocarbon stream containing asphaltenes; and adding to the hydrocarbon stream a magnesium overbased compound.
- the magnesium overbased compound may be a magnesium overbased carboxylate, a magnesium overbased sulfonate, a magnesium overbased phenates, or mixtures thereof.
- the magnesium overbased compound is added in an amount effective to improve the stability of the hydrocarbon stream.
- the hydrocarbon stream is subjected to heat after the addition.
- a method for inhibiting coke furnace fouling that includes heating a coke drum feedstock containing asphaltenes and then adding to the coke drum feedstock a magnesium overbased compound.
- the magnesium overbased compound can be a magnesium overbased carboxylate, a magnesium overbased sulfonate, a magnesium overbased phenate, or mixtures thereof.
- the coke drum feedstock is then stored at an elevated temperature. * .
- a method for stabilizing heavy fuel oils that involves thermally cracking a residual oil to provide heavy fuel oil; and adding to the thermally cracked heavy fuel oil a magnesium overbased compound that is a magnesium overbased carboxylate, a magnesium overbased sulfonate, and/or a magnesium overbased phenate, in an amount effective to improve the stability of the fuel oil, where the adding is conducted sufficiently soon after thermal cracking to improve stability.
- the magnesium overbased carboxylate is added within about 2 hours or less of thermally cracking the fuel oil.
- the magnesium overbased carboxylate is added within about 40 hours or less of thermally cracking the fuel oil.
- a stabilized heavy fuel oil that includes a thermally cracked residual oil.
- the stabilized heavy fuel oil also includes a magnesium overbased compound in an amount effective to improve the stability of the fuel oil.
- the magnesium overbased compound is added to the thermally cracked residual oil sufficiently soon after thermal cracking to produce the residual oil to improve stability.
- the magnesium overbased compound may be a magnesium overbased carboxylate, a magnesium overbased sulfonate, and/or a magnesium overbased phenate.
- the present invention relates to the addition of overbased magnesium compounds relatively soon after the heavy fuel oil is produced by thermal cracking before it is stored and/or blended, if blending is necessary.
- the invention is concerned with the treatment of visbreaker tars.
- the application of these compounds is much more effective if they are applied to the visbreaker tars before storage and blending of the tar.
- early application of these compounds helps prevent or reduce aging difficulties, resulting in far better results than attempts to cure aging and stability problems after their occurrence.
- the method operates by treating heavy fuel oils from fractionation of thermally cracked atmospheric or vacuum residuals.
- “heavy” is meant with a boiling range above 350°C, a density ranging from 0.9 to 1 kg/m 3 and a viscosity range from 200 to 500 centistokes (2 to 5 cm 2 /s) at 50°C.
- Suitable overbased magnesium compounds include, but are not necessarily limited to, magnesium overbased carboxylates, magnesium over- based sulfonates and/or magnesium overbased phenates and the like.
- magnesium overbased carboxylates may be used.
- a particularly suitable magnesium overbased carboxylate is KI-85 available from Baker Petrolite.
- the overbased magnesium compound contains from about 21 to about 26 wt% magnesium.
- the magnesium content is from about 24 to about 25 wt%.
- the compound has at least about 21 wt% magnesium, and in another non-limiting embodiment, has at least about 25 wt% Mg.
- magnesium proportions are average amounts.
- These magnesium overbased compounds may be readily produced by methods well known in the art.
- the residual fuel oil is treated by the addition of about 25 to about 2000 ppm of a suitable magnesium overbased compound, based on the heavy fuel oil.
- the proportion of the magnesium overbased compound ranges from about 150 to about 2000 ppm of based on the heavy fuel oil.
- An important part of the method of the invention is to add the mag- nesium overbased carboxylate (or other compound) to the thermally cracked heavy fuel oil sufficiently soon after thermal cracking to improve its stability.
- the optimal time or time range of addition will vary depending on the nature of the overbased magnesium compound, how much is added, how much magnesium is present in the compound, the temperature of addition and the nature of the thermally cracked fuel oil.
- the overbased magnesium compound is added at least within about 40 hours or less.
- the overbased magnesium compound is added at least within about 2 hours or less after separation of heavy fuel oil from other thermally cracked streams.
- the magnesium overbased compound is added within 20 hours or less after thermal cracking, and in an alternate embodiment, within 10 hours or less.
- the adding of the overbased magnesium compound is performed within a temperature range of about 250 to about 490°C.
- this temperature will be at or near the temperature of the thermally cracked residual fuel oil shortly after it is produced.
- the overbased magnesium compound is added within a temperature range of about 250 to about 380°C.
- the overbased magnesium compounds made according to the methods of U.S. Pat. No. 6,197,075 it will be appreciated that in another non-limiting embodiment of the present invention, the method is practiced in the absence of adding a co-promoter reaction product of a succinic anhydride and a lower carboxylic acid, in all of the forms described in the '075 patent.
- the method of the '075 patent does not appreciate the need for adding the overbased magnesium compounds very shortly after the residual fuel oils are produced by thermal cracking. Further, it will be appreciated that it is not necessary for the heavy fuel oils to completely prevent asphaltene sediments or aggregation or to produce a heavy fuel oil that is stable forever for the invention to be considered successful. Rather, the methods and compositions of this invention are successful if the stability of the heavy fuel oils is simply improved.
- the present invention also relates to inhibiting or preventing furnace fouling caused by asphaltenes in other hydrocarbon streams including coker feedstocks. Again, it will be appreciated that fouling need not be entirely prevented for the invention to be considered successful in this context.
- furnace fouling rates are correlated to the amount of coker unit feed that comes from storage. Higher amounts of feed from storage result in generally higher rates of furnace fouling.
- the basis for the invention is the possibility that a significant portion of the coker furnace fouling results due to the 10-20 % of feed that comes from the storage tank.
- This stored-feedstock-induced fouling is believed to result from degradation of the feedstock during this storage time. These materials are very viscous, and, as such, must be kept at elevated temperatures (250°F and higher; 121°C and higher) while stored to allow pumping to the coker unit. Storage times can range from a few days to several weeks. The degradation of the stored materials is believed to involve several possible mechanisms: 1.
- Hot Filtration Test is a relatively standard test to determine the stability of a particular fuel oil.
- the acceptable sediment content for fuel oil is less than 0.5% by hot filtration test (HFT). These sediments are due to aggregation of unstable high molecular weight polynuclear type aromatics known as asphaltenes. Higher contents than 0.5% have a negative impact on fuel filters (plugging) and on the burning quality of fuel. High contents of sediments also have a negative impact on storage tanks as they tend to settle out on the bottom of the tank with a layer of sludge that is difficult to remove.
- the invention consists in limiting the content of sediment formation with time in storage tanks for fuel oil. Particularly, the invention is concerned with treatment of residues from thermal cracking, used as heavy fuels or blended with gas-oils for fuel oil no. 6 production, in one non-limiting embodiment.
- this invention is related to the treatment of resids from visbreaking, commonly known as vistar or tar.
- resids from visbreaking commonly known as vistar or tar.
- These feedstocks are very problematic with respect to sediment for- mation since thermal cracking in the furnace gives rise to instability.
- This can be partially solved by decreasing thermal cracking temperatures or reaction time at cracking temperatures (about 430-490°C), although this leads to a strong decrease in the yield of valuable 360°C+ distillates from thermal cracking.
- oil soluble magnesium carboxylate overbased products having 14-18% magnesium
- oil soluble magnesium carboxylate overbased formulations with a higher magnesium content (23-26%; average 25%)
- asphaltene dispersant Baker Petrolite BPR34260
- a sterically hindered phenol which acts as a radical stopper-scavenger, commonly marketed as antioxidant.
- samples of vistar and vistar blended with gas-oil streams were submitted to meet no. 6 fuel oil viscosity specifications, the blank (untreated) samples and treated samples were subjected to controlled "aging", that is, keeping them at 80°C for a period of time of more than 100 hours.
- blended tars (fuel oil no.6) showed a greater HFT than unblended tars.
- Example 22 Prevention of Furnace Fouling
- a commercial coker currently takes approximately 15% of its feed from storage. In a 5 year period, numerous additive treatments have been tried, at the furnace, to control furnace fouling. The severity of the problem is such that a spalling (a cleanup process) is necessary, on average, every 12 days.
- Furnace fouling is measured by the rate of skin temperature change for several thermocouples attached to furnace tubes. A typical starting temperature is 1000°F (538°F). The limitation is an upper limit on the skin temperature, typically around 1200°F (649°C). When the limit is reached, a spall or a decoke operation to remove coke is required. When either cleanup process is carried out, production is lost, and furnace tube life is shortened. These costs are what drive the refiner to seek solutions. It is expected that injection of an effective amount of a magnesium overbased carboxylate, such as the proportions previously mentioned, would inhibit fouling sufficiently the time between cleanings is increased from 12 days to 3 months.
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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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04757200A EP1658355A1 (en) | 2003-07-21 | 2004-07-21 | Improved stability of hydrocarbons containing asphaltenes |
CA002532924A CA2532924A1 (en) | 2003-07-21 | 2004-07-21 | Improved stability of hydrocarbons containing asphaltenes |
NO20060465A NO20060465L (en) | 2003-07-21 | 2006-01-30 | Improved stability for hydrocarbons containing asphaltenes |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48889103P | 2003-07-21 | 2003-07-21 | |
US60/488,891 | 2003-07-21 | ||
US10/894,138 | 2004-07-19 | ||
US10/894,138 US20050040072A1 (en) | 2003-07-21 | 2004-07-19 | Stability of hydrocarbons containing asphal tenes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005010126A1 true WO2005010126A1 (en) | 2005-02-03 |
Family
ID=34107778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/023575 WO2005010126A1 (en) | 2003-07-21 | 2004-07-21 | Improved stability of hydrocarbons containing asphaltenes |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050040072A1 (en) |
EP (1) | EP1658355A1 (en) |
CA (1) | CA2532924A1 (en) |
NO (1) | NO20060465L (en) |
WO (1) | WO2005010126A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104379707A (en) * | 2012-04-17 | 2015-02-25 | Sk新技术株式会社 | Method for preparing stabilized hydrocarbon oil blend |
US9353434B2 (en) | 2006-10-12 | 2016-05-31 | C3 International, Llc | Methods for providing prophylactic surface treatment for fluid processing systems and components thereof |
US9921205B2 (en) | 2012-11-13 | 2018-03-20 | Chevron U.S.A. Inc. | Method for determining the effectiveness of asphaltene dispersant additives for inhibiting or preventing asphaltene precipitation in a hydrocarbon-containing material subjected to elevated temperature and presssure conditions |
US10907473B2 (en) | 2017-11-14 | 2021-02-02 | Chevron U.S.A., Inc. | Low volume in-line filtration methods for analyzing hydrocarbon-containing fluid to evaluate asphaltene content and behavior during production operations |
WO2024073492A1 (en) | 2022-09-28 | 2024-04-04 | Championx Llc | Extended release asphaltene inhibitor composition |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2297443C2 (en) * | 2005-07-18 | 2007-04-20 | Общество с ограниченной ответственностью "Ойлтрейд" | Light petroleum fuel |
RU2297442C2 (en) * | 2005-07-18 | 2007-04-20 | Общество с ограниченной ответственностью "Ойлтрейд" | Heavy petroleum fuel |
US20080099722A1 (en) * | 2006-10-30 | 2008-05-01 | Baker Hughes Incorporated | Method for Reducing Fouling in Furnaces |
US7951758B2 (en) * | 2007-06-22 | 2011-05-31 | Baker Hughes Incorporated | Method of increasing hydrolytic stability of magnesium overbased products |
US8017910B2 (en) * | 2008-10-20 | 2011-09-13 | Nalco Company | Method for predicting hydrocarbon process stream stability using near infrared spectra |
US9644161B2 (en) * | 2014-04-11 | 2017-05-09 | Baker Hughes Incorporated | Plasticized latex formulations for improved pumpability |
US20160298039A1 (en) * | 2015-04-08 | 2016-10-13 | Baker Hughes Incorporated | Decreasing fouling in hydrocarbon-based fluids |
US10222329B2 (en) | 2015-09-23 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Method for determining a settling rate of at least one foulant in oil-based fluids |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993006195A1 (en) * | 1991-09-19 | 1993-04-01 | Exxon Chemical Patents Inc. | Overbased metal-containing detergents |
WO1999051707A1 (en) * | 1998-04-02 | 1999-10-14 | Witco Corporation | Overbased magnesium deposit control additive for residual fuel oils |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4046670A (en) * | 1975-04-30 | 1977-09-06 | Kureha Kagaku Kogyo Kabushiki Kaisha | Method for the treatment of heavy petroleum oil |
US4179383A (en) * | 1977-10-07 | 1979-12-18 | Petrolite Corporation | Preparation of magnesium-containing dispersions from magnesium carboxylates |
US4163728A (en) * | 1977-11-21 | 1979-08-07 | Petrolite Corporation | Preparation of magnesium-containing dispersions from magnesium carboxylates at low carboxylate stoichiometry |
US4312745A (en) * | 1979-02-02 | 1982-01-26 | Great Lakes Carbon Corporation | Non-puffing petroleum coke |
FR2576032B1 (en) * | 1985-01-17 | 1987-02-06 | Elf France | HOMOGENEOUS AND STABLE COMPOSITION OF ASPHALTENIC LIQUID HYDROCARBONS AND AT LEAST ONE ADDITIVE USABLE IN PARTICULAR AS FUEL INDUSTRIAL |
US4927519A (en) * | 1988-04-04 | 1990-05-22 | Betz Laboratories, Inc. | Method for controlling fouling deposit formation in a liquid hydrocarbonaceous medium using multifunctional antifoulant compositions |
US4931164A (en) * | 1988-11-14 | 1990-06-05 | Exxon Chemical Patents Inc. | Antifoulant additive for light end hydrocarbons |
-
2004
- 2004-07-19 US US10/894,138 patent/US20050040072A1/en not_active Abandoned
- 2004-07-21 EP EP04757200A patent/EP1658355A1/en not_active Withdrawn
- 2004-07-21 WO PCT/US2004/023575 patent/WO2005010126A1/en active Application Filing
- 2004-07-21 CA CA002532924A patent/CA2532924A1/en not_active Abandoned
-
2006
- 2006-01-30 NO NO20060465A patent/NO20060465L/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993006195A1 (en) * | 1991-09-19 | 1993-04-01 | Exxon Chemical Patents Inc. | Overbased metal-containing detergents |
WO1999051707A1 (en) * | 1998-04-02 | 1999-10-14 | Witco Corporation | Overbased magnesium deposit control additive for residual fuel oils |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9353434B2 (en) | 2006-10-12 | 2016-05-31 | C3 International, Llc | Methods for providing prophylactic surface treatment for fluid processing systems and components thereof |
US9625079B2 (en) | 2006-10-12 | 2017-04-18 | C3 International, Llc | Methods for providing prophylactic surface treatment for fluid processing systems and components thereof |
US9879815B2 (en) | 2006-10-12 | 2018-01-30 | C3 International, Llc | Methods for providing prophylactic surface treatment for fluid processing systems and components thereof |
CN104379707A (en) * | 2012-04-17 | 2015-02-25 | Sk新技术株式会社 | Method for preparing stabilized hydrocarbon oil blend |
CN104379707B (en) * | 2012-04-17 | 2016-04-20 | Sk新技术株式会社 | For the preparation of the method for stable hydrocarbon ils blend |
US9921205B2 (en) | 2012-11-13 | 2018-03-20 | Chevron U.S.A. Inc. | Method for determining the effectiveness of asphaltene dispersant additives for inhibiting or preventing asphaltene precipitation in a hydrocarbon-containing material subjected to elevated temperature and presssure conditions |
US10907473B2 (en) | 2017-11-14 | 2021-02-02 | Chevron U.S.A., Inc. | Low volume in-line filtration methods for analyzing hydrocarbon-containing fluid to evaluate asphaltene content and behavior during production operations |
WO2024073492A1 (en) | 2022-09-28 | 2024-04-04 | Championx Llc | Extended release asphaltene inhibitor composition |
Also Published As
Publication number | Publication date |
---|---|
EP1658355A1 (en) | 2006-05-24 |
US20050040072A1 (en) | 2005-02-24 |
CA2532924A1 (en) | 2005-02-03 |
NO20060465L (en) | 2006-01-30 |
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