GB803184A - Improvements in or relating to the separation of normal paraffins from hydrocarbon mixtures - Google Patents
Improvements in or relating to the separation of normal paraffins from hydrocarbon mixturesInfo
- Publication number
- GB803184A GB803184A GB6684/57A GB668457A GB803184A GB 803184 A GB803184 A GB 803184A GB 6684/57 A GB6684/57 A GB 6684/57A GB 668457 A GB668457 A GB 668457A GB 803184 A GB803184 A GB 803184A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrocarbon
- separation
- normal
- paraffin
- desorbed
- 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
- C10G25/02—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with ion-exchange material
- C10G25/03—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with ion-exchange material with crystalline alumino-silicates, e.g. molecular sieves
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
- C07C7/13—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique
Abstract
In a process for separating a normal paraffin from a normally liquid hydrocarbon mixture also containing branched-chain and/or cyclic hydrocarbons by contacting the mixture in the liquid phase with a solid absorbent which selectively absorbs normal paraffins, the absorbed paraffin is desorbed with a normal paraffin in the liquid phase which contains at least four carbon atoms per molecule and of lower molecular weight than the absorbed paraffin. Desorbed hydrocarbon is readily separated from any desorbing hydrocarbon by fractionation. The feed for separation may be a gasoline mixture, e.g. a reformate, and the normal paraffins separated may be subjected to isomerization or other treatment to improve the octane number. Traces of isobutane and lower boiling hydrocarbons are preferably removed prior to the separation by distillation. Absorption and desorption are both preferably carried out at 80-152 DEG C. and 13.5-68 atmospheres, the pressure being sufficient to maintain the hydrocarbons in the liquid phase. The desorbing hydrocarbon may be removed from the absorbent by reducing the pressure. Normal butane is the preferred desorbing hydrocarbon. Absorbents which may be used preferably have a pore size of about 5.1 and include the crystalline alumino-silicates of calcium, magnesium, barium, strontium, sodium and potassium. The calcium compound is preferably heated to remove water of hydration. In a preferred embodiment separation is carried out continuously by the use of two absorption zones, one being used for absorption while the other is desorbed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US568809A US2920037A (en) | 1956-03-01 | 1956-03-01 | Separation of normal paraffins from hydrocarbon mixtures using zeolitic molecular sieves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB803184A true GB803184A (en) | 1958-10-22 |
Family
ID=24272832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6684/57A Expired GB803184A (en) | 1956-03-01 | 1957-02-28 | Improvements in or relating to the separation of normal paraffins from hydrocarbon mixtures |
Country Status (7)
Country | Link |
---|---|
US (1) | US2920037A (en) |
CA (1) | CA1016873A (en) |
DE (2) | DE1418428C2 (en) |
ES (1) | ES233939A1 (en) |
FR (1) | FR1172788A (en) |
GB (1) | GB803184A (en) |
NL (1) | NL108239C (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2978407A (en) * | 1958-05-28 | 1961-04-04 | Exxon Research Engineering Co | Molecular sieve separation process |
US3007980A (en) * | 1958-06-20 | 1961-11-07 | Sun Oil Co | Removal of impurities from volatile liquids |
US3054838A (en) * | 1958-09-08 | 1962-09-18 | California Research Corp | Method for separating n-hydrocarbons using molecular sieves |
US3053913A (en) * | 1959-01-21 | 1962-09-11 | Gulf Research Development Co | Separation of high molecular weight hydrocarbons with molecular sieves |
DE1194084B (en) * | 1959-08-29 | 1965-06-03 | Deutsche Erdoel Ag | Process for the separation of hydrocarbon mixtures |
BE598183A (en) * | 1959-12-15 | |||
US3184518A (en) * | 1960-08-22 | 1965-05-18 | Standard Oil Co | Increased efficiency in molecular sieve adsorption system |
US3121757A (en) * | 1960-10-28 | 1964-02-18 | Universal Oil Prod Co | Vibratory sorption separation process utilizing molecular sieves |
NL272082A (en) * | 1960-12-09 | |||
GB966770A (en) * | 1961-09-08 | 1964-08-12 | British Petroleum Co | Improvements relating to hydrocarbon separation processes |
US3141748A (en) * | 1961-11-20 | 1964-07-21 | Exxon Research Engineering Co | Hydrogen purification process |
US3226914A (en) * | 1962-09-04 | 1966-01-04 | Union Carbide Corp | Pressure cycle for molecular sieve separation of normal paraffins from hydrocarbon mixtures |
US3426086A (en) * | 1965-01-04 | 1969-02-04 | Phillips Petroleum Co | Production and/or recovery of primary haloalkanes |
US4394254A (en) * | 1982-04-26 | 1983-07-19 | Texaco Inc. | Method for separating straight chain hydrocarbons using zeolites having large crystals |
US5510564A (en) * | 1994-12-12 | 1996-04-23 | Uop | N-paraffin purification process with removal of aromatics |
US20060236595A1 (en) * | 2005-04-22 | 2006-10-26 | Norikazu Nakamura | Biofuel conversion process |
US20100116711A1 (en) * | 2008-11-12 | 2010-05-13 | Kellogg Brown & Root Llc | Systems and Methods for Producing N-Paraffins From Low Value Feedstocks |
EP2186785A3 (en) | 2010-01-27 | 2010-09-01 | Shell Internationale Research Maatschappij B.V. | Process for the separation of olefins from paraffins |
EP2186784A3 (en) | 2010-01-27 | 2010-09-01 | Shell Internationale Research Maatschappij B.V. | Process for the preparation and recovery of olefins |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE624912C (en) * | 1931-12-21 | 1936-02-07 | Metallgesellschaft Akt Ges | Process for the extraction of hydrocarbons from gases by means of solid adsorbents |
US2306610A (en) * | 1941-02-24 | 1942-12-29 | Barrer Richard Maling | Fractionation of mixtures of hydrocarbons |
GB548905A (en) * | 1941-02-24 | 1942-10-29 | Richard Maling Barrer | A process for the fractionation of hydrocarbon mixtures |
US2376425A (en) * | 1941-06-02 | 1945-05-22 | Phillips Petroleum Co | Diolefin production |
DE871886C (en) * | 1942-07-02 | 1953-03-26 | Linde Eismasch Ag | Adsorption process |
US2522426A (en) * | 1945-05-30 | 1950-09-12 | Standard Oil Dev Co | Method of extrcting hydrocarbons |
US2425535A (en) * | 1945-07-25 | 1947-08-12 | Standard Oil Dev Co | Separation of normal paraffins from iso-paraffins by means of activated cocoanut charcoal |
US2574434A (en) * | 1949-06-04 | 1951-11-06 | Socony Vacuum Oil Co Inc | Method for refining petroleum hydrocarbons |
US2586889A (en) * | 1949-08-23 | 1952-02-26 | Standard Oil Dev Co | Separation of straight-chain from branched-chain hydrocarbons |
US2859256A (en) * | 1955-01-28 | 1958-11-04 | Texas Co | Separation process involving adsorption and desorption |
US2818455A (en) * | 1955-03-28 | 1957-12-31 | Texas Co | Desorption of straight chain hydrocarbons from selective adsorbents |
US2818137A (en) * | 1955-10-24 | 1957-12-31 | Texas Co | Adsorptive separation process |
-
0
- NL NL108239D patent/NL108239C/xx active
-
1956
- 1956-03-01 US US568809A patent/US2920037A/en not_active Expired - Lifetime
-
1957
- 1957-02-21 CA CA723,889A patent/CA1016873A/en not_active Expired
- 1957-02-28 DE DE1418428A patent/DE1418428C2/en not_active Expired
- 1957-02-28 ES ES0233939A patent/ES233939A1/en not_active Expired
- 1957-02-28 DE DE19571795548 patent/DE1795548B2/en active Pending
- 1957-02-28 GB GB6684/57A patent/GB803184A/en not_active Expired
- 1957-03-01 FR FR1172788D patent/FR1172788A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1016873A (en) | 1977-09-06 |
ES233939A1 (en) | 1957-08-01 |
DE1795548A1 (en) | 1972-04-13 |
DE1795548B2 (en) | 1973-08-02 |
NL108239C (en) | |
DE1418428C2 (en) | 1974-04-04 |
DE1418428B1 (en) | 1970-12-10 |
FR1172788A (en) | 1959-02-16 |
US2920037A (en) | 1960-01-05 |
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