GB763625A - Improvements in or relating to the purification of hydrocarbons - Google Patents
Improvements in or relating to the purification of hydrocarbonsInfo
- Publication number
- GB763625A GB763625A GB2643/54A GB264354A GB763625A GB 763625 A GB763625 A GB 763625A GB 2643/54 A GB2643/54 A GB 2643/54A GB 264354 A GB264354 A GB 264354A GB 763625 A GB763625 A GB 763625A
- Authority
- GB
- United Kingdom
- Prior art keywords
- active carbon
- acid
- distillate
- oxygen
- column
- 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
- C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
- C10G25/003—Specific sorbent material, not covered by C10G25/02 or C10G25/03
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)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The mercaptan content of a hydrocarbon distillate, for example a gasoline, is reduced by leading the distillate through at least one column containing a layer of active carbon impregnated with an aqueous alkaline liquor and the used impregnated active carbon is subsequently regenerated by means of an oxygen-containing gas in the absence of steam. According to a modification of the process, the regeneration of the active carbon, instead of being effected subsequently, is effected continuously during the passage of the distillate through the column by adding air to the hydrocarbon distillate, either in the column or before the column. The alkaline liquor may be an aqueous solution of an alkali metal hydroxide, particularly sodium hydroxide, or of ammonium hydroxide, and the oxygen-containing gas may be air of oxygen. The alkaline liquor may contain organic or inorganic activators and a list of substances suitable for this purpose is given. Mercaptans in the hydrocarbon distillate are converted, by contact with the active carbon, to disulphides which remain dissolved in the distillate. The active carbon becomes contaminated with mercaptides and the regeneration with oxygen-containing gas effects removal of the mercaptides. The active carbon in time may become contaminated with phenolates and regeneration by steaming is then necessary. The hydrocarbon distillate, before contact with the active carbon, may be freed of hydrogen sulphide, for example by washing with aqueous sodium hydroxide solution, followed by water-washing and drying in a coalescer containing iron filings. In the examples, gasoline is sweetened by contact with active carbon impregnated with aqueous sodium or potassium hydroxide, air being introduced with the gasoline or used subsequently to regenerate the active carbon. Activators mentioned in the examples are methanol, glycol, dimethylamine, hydrochloride, diethanolamine, butyric acid, naphthenic acids, tartaric acid, acetaldehyde, acetone, grape sugar, phenol, m-cresol, petroleum phenols, alpha-naphthol, pyrocatechol, resorcinol, hydroquinone, pyrogallol, salicylic acid, resorcylic acid, gallic acid, tannin, p - aminophenol, N - benzyl - p - aminophenol, p - aminosalicylic acid, anthraquinone, alizarin, quinizarin, sodium salt of m - nitrobenzene sulphonic acid, picric acid, pyridine, hydrazine hydrate, hydroxides or sulphides of copper, ferric iron, chromium, manganese, lead, cobalt or nickel (formed in situ by the addition of a water-soluble salt of the metal and reaction between the salt and the alkaline liquor or sodium sulphide contained therein) and a mixture of ferric chloride and sodium potassium tartrate. Apparatus is described wherein the process employing air introduced with the hydrocarbon distillate is carried out in four towers, three being used in series and the fourth being out of action for steaming.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE763625X | 1953-02-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB763625A true GB763625A (en) | 1956-12-12 |
Family
ID=6671370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2643/54A Expired GB763625A (en) | 1953-02-06 | 1954-01-28 | Improvements in or relating to the purification of hydrocarbons |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB763625A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001042392A2 (en) * | 1999-12-13 | 2001-06-14 | Ds2 Tech, Inc. | Process for the demercaptanization of petroleum distillates |
US6565741B2 (en) | 1999-12-13 | 2003-05-20 | William Wismann | Process for desulfurization of petroleum distillates |
EP1659163A1 (en) | 2004-11-17 | 2006-05-24 | Institut Français du Pétrole | process for converting saturated sulfur compounds in a hydrocarbon fraction containing few or no olefins |
CN103031141A (en) * | 2011-09-29 | 2013-04-10 | 中国石油化工股份有限公司 | Method for removing mercaptan in lightweight petroleum product |
US9181501B2 (en) | 2012-08-17 | 2015-11-10 | Uop Llc | Method and apparatus for removing H2S and moisture from fractionator overhead naphtha |
-
1954
- 1954-01-28 GB GB2643/54A patent/GB763625A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001042392A2 (en) * | 1999-12-13 | 2001-06-14 | Ds2 Tech, Inc. | Process for the demercaptanization of petroleum distillates |
WO2001042392A3 (en) * | 1999-12-13 | 2002-03-14 | Ds2 Tech Inc | Process for the demercaptanization of petroleum distillates |
US6485633B2 (en) | 1999-12-13 | 2002-11-26 | Ds2 Tech, Inc. | Process for the demercaptanization of petroleum distillates |
US6565741B2 (en) | 1999-12-13 | 2003-05-20 | William Wismann | Process for desulfurization of petroleum distillates |
EP1659163A1 (en) | 2004-11-17 | 2006-05-24 | Institut Français du Pétrole | process for converting saturated sulfur compounds in a hydrocarbon fraction containing few or no olefins |
CN103031141A (en) * | 2011-09-29 | 2013-04-10 | 中国石油化工股份有限公司 | Method for removing mercaptan in lightweight petroleum product |
CN103031141B (en) * | 2011-09-29 | 2015-11-25 | 中国石油化工股份有限公司 | A kind of method removing mercaptan in oils |
US9181501B2 (en) | 2012-08-17 | 2015-11-10 | Uop Llc | Method and apparatus for removing H2S and moisture from fractionator overhead naphtha |
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