GB810490A - Processes for sweetening hydrocarbon oils - Google Patents
Processes for sweetening hydrocarbon oilsInfo
- Publication number
- GB810490A GB810490A GB2617/56A GB261756A GB810490A GB 810490 A GB810490 A GB 810490A GB 2617/56 A GB2617/56 A GB 2617/56A GB 261756 A GB261756 A GB 261756A GB 810490 A GB810490 A GB 810490A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercaptans
- carbon atoms
- oxygen
- mixture
- propeller mixer
- 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.)
- Expired
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
- C10G27/00—Refining of hydrocarbon oils in the absence of hydrogen, by oxidation
- C10G27/04—Refining of hydrocarbon oils in the absence of hydrogen, by oxidation with oxygen or compounds generating oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/91—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with propellers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/15—Stirrers with tubes for guiding the material
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)
Abstract
Mercaptans are removed from hydrocarbon oils by intimately contacting, in the presence of a free oxygen-containing gas, with an aqueous alkali metal hydroxide solution in and by means of a propeller mixer, the volume ratio of aqueous alkali metal hydroxide to mercaptan-containing hydrocarbon oil supplied to the propeller mixer being less than 0.5:1. Aqueous sodium and potassium hydroxide solutions may be used, to which solutizers for mercaptans and for oxygen may be added. Solutizers for mercaptans referred to are amino- and hydroxy-alkyl amines where the alkyl groups contain 2 to 3 carbon <PICT:0810490/III/1> atoms, glycols, amino-glycols and diaminoalcohols containing 3-5 carbon atoms, diamino-, dihydroxy- or aminohydroxy-dialkyl ethers or thioethers where the alkyl groups have 2-3 carbon atoms, alkali salts such as potassium salts of fatty acids containing 3-5 carbon atoms, e.g. isobutyric acid, or of hydroxy- or amino-fatty acids containing 4-7 carbon atoms, or of phenyl acetic acid or hydroxy- or aminophenyl acetic acids, and alkyl phenolates such as cresolates. Solutizers for oxygen specified are phenolates, which may be substituted by alkyl groups with a total of not more than 3 carbon atoms. An oxidation catalyst for mercaptans, such as tannin, may be used. An excess of 50-200 per cent with respect to the theoretical amount of oxygen required for oxidation of the mercaptans is preferred; 10-40 per cent of a peroxide, based on the stoichiometric quantity of oxygen, may also be added. The process may be carried out at 0-80 DEG C. and at normal or elevated pressure, and may be effected continuously. From 0.2-0.4 parts by volume of alkali to 1 part of oil may be used. The oils may be pretreated with dilute aqueous alkali metal hydroxide solution to remove hydrogen sulphide and part of the aromatic mercaptans, and also with a similar solution containing a solutizer for mercaptans to remove most of the mercaptans. Hydrocarbon oils treated may be those boiling not higher than 350 DEG C., such as straight run or cracked gasolines and kerosines, e.g. catalytically cracked gasolines, and reformed gasolines; when the oils contain unsaturated components, an antioxidant may be added, e.g. an arylamine or alkyl phenol. In the Figure, 1 designates a propeller mixer comprising a rotating vane 3 mounted on a shaft 2 and surrounded by a jacket 4, in which the mixture of oil and alkali is introduced via inlet 5. The mixture is sucked down by the vane and enters the zone between the jacket and the outer wall via the bottom of jacket 4. The mixture leaves the apparatus at outlet 6. The inner wall of the apparatus may be provided with baffles 7. The vanes may revolve at 250-2500 revolutions per minute. The mixture of oil and alkali is passed to a settling tank to separate the phases, and the aqueous alkali recycled. The process is compared with a similar process using a turbomixer instead of a propeller mixer. Specifications 499,678, 503,644, 509,669 and 712,056 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL194347 | 1955-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB810490A true GB810490A (en) | 1959-03-18 |
Family
ID=19750694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2617/56A Expired GB810490A (en) | 1955-01-28 | 1956-01-26 | Processes for sweetening hydrocarbon oils |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE544721A (en) |
DE (1) | DE1050483B (en) |
FR (1) | FR1145431A (en) |
GB (1) | GB810490A (en) |
NL (1) | NL86364C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013054176A3 (en) * | 2011-10-12 | 2013-06-13 | Indian Oil Corporation Ltd. | Reactor assembly for improving reaction between two immiscible phases for metal reduction of hydrocarbons |
RU2548655C2 (en) * | 2005-03-09 | 2015-04-20 | Общество с ограниченной ответственностью "Химинвест+" | Method of neutralization of hydrogen sulfide and light mercaptans in stock oil and composition of mix of hemiformal and hydrocarbonic nitrocompound |
-
0
- BE BE544721D patent/BE544721A/xx unknown
- NL NL86364D patent/NL86364C/xx active
- DE DENDAT1050483D patent/DE1050483B/de active Pending
-
1956
- 1956-01-26 GB GB2617/56A patent/GB810490A/en not_active Expired
- 1956-01-26 FR FR1145431D patent/FR1145431A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2548655C2 (en) * | 2005-03-09 | 2015-04-20 | Общество с ограниченной ответственностью "Химинвест+" | Method of neutralization of hydrogen sulfide and light mercaptans in stock oil and composition of mix of hemiformal and hydrocarbonic nitrocompound |
WO2013054176A3 (en) * | 2011-10-12 | 2013-06-13 | Indian Oil Corporation Ltd. | Reactor assembly for improving reaction between two immiscible phases for metal reduction of hydrocarbons |
Also Published As
Publication number | Publication date |
---|---|
FR1145431A (en) | 1957-10-25 |
NL86364C (en) | |
DE1050483B (en) | |
BE544721A (en) |
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