GB478841A - A process for the manufacture of hydrocarbon mixtures containing a high percentage of alkenes of high molecular weight - Google Patents
A process for the manufacture of hydrocarbon mixtures containing a high percentage of alkenes of high molecular weightInfo
- Publication number
- GB478841A GB478841A GB28436/36A GB2843636A GB478841A GB 478841 A GB478841 A GB 478841A GB 28436/36 A GB28436/36 A GB 28436/36A GB 2843636 A GB2843636 A GB 2843636A GB 478841 A GB478841 A GB 478841A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cracking
- temperature
- pressure
- alkenes
- evaporated
- 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
- 239000004215 Carbon black (E152) Substances 0.000 title abstract 9
- 229930195733 hydrocarbon Natural products 0.000 title abstract 9
- 150000002430 hydrocarbons Chemical class 0.000 title abstract 9
- 150000001336 alkenes Chemical class 0.000 title abstract 7
- 239000000203 mixture Substances 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000005336 cracking Methods 0.000 abstract 16
- 239000000463 material Substances 0.000 abstract 8
- 238000001704 evaporation Methods 0.000 abstract 6
- 239000012188 paraffin wax Substances 0.000 abstract 6
- 238000009835 boiling Methods 0.000 abstract 4
- 230000008020 evaporation Effects 0.000 abstract 4
- 239000000047 product Substances 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 abstract 2
- 239000000470 constituent Substances 0.000 abstract 2
- 239000012065 filter cake Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000003701 inert diluent Substances 0.000 abstract 2
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000000080 wetting agent Substances 0.000 abstract 2
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- 159000000011 group IA salts Chemical class 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
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
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A process for the manufacture of alkene-containing hydrocarbon mixtures which may be used to prepare salts of sulphuric acid esters &c. suitable as wetting-agents by evaporating hydrocarbon material, containing a high percentage of paraffin wax, e.g. paraffin filter cakes, in the presence of an inert diluent as completely as possible without cracking, and heating the evaporated material, after removal of constituents which under the prevailing conditions of temperature are not in the vapour phase, to cracking temperature, wherein in order to produce hydrocarbon mixtures containing alkenes having 10 or more carbon atoms in the molecule, the evaporated material is heated rapidly and for a very short period to cracking temperature, the time required for bringing the evaporated material to cracking temperature and the cracking time not exceeding 5 seconds. The evaporation and cracking is carried out under 2--5 atmos. pressure, the hydrocarbon partial pressure not exceeding 0,6 of the total pressure. Cracking temperatures of 500--600 DEG C. are specified, the evaporation temperatures being 50--150 DEG C. below the cracking temperatures. Molten crude paraffin cakes are evaporated in a tube furnace at 470 DEG C. under 4,8 atmos. pressure in the presence of 10 per cent by weight of steam. The products are passed into a separator where liquids are separated and the vapours are cracked at 545 DEG C. for 2,9 seconds. The cracked vapours are cooled by injection of water and products boiling over 300 DEG C. are recycled. The fraction boiling between 160 and 300 DEG C. contains 80 per cent alkenes by volume.ALSO:A process for the manufacture of alkene-containing hydrocarbon mixtures by evaporating hydrocarbon material containing a high percentage of paraffin wax, e.g. paraffin filter cakes, in the presence of an inert diluent as completely as possible without cracking, and heating the evaporated material, after removal of constituents which under the prevailing conditions of temperature, are not in the vapour phase to cracking temperature, wherein in order to produce hydrocarbon mixtures containing alkenes having 10 or more carbon atoms in the molecule, the evaporated material is heated rapidly and for a very short period to cracking temperature, the time required for bringing the evaporated material to cracking temperature and the cracking time not exceeding 5 seconds. The evaporation and cracking is carried out under 2--5 atmos. pressure, the hydrocarbon partial pressure not exceeding 0,6 of the total pressure. Cracking temperatures of 500--600 DEG C., are specified, the evaporation temperature being 50--150 DEG C. below the cracking temperature. Molten crude paraffin cakes are evaporated in a tube furnace at 470 DEG C. under 4,8 atmos. pressure in the presence of 10 per cent by weight of steam. The products are passed into a separator where liquids are separated, and the vapours are cracked at 545 DEG C. for 2,9 seconds. The cracked vapours are cooled by injection of water and products boiling over 300 DEG C. are recycled. The fraction boiling between 160 and 300 DEG C. contains 80 per cent alkenes by volume and may be used for preparing alcohols, ethers, esters, e.g. alkaline salts of sulphuric acid esters for use as wetting-agents.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL478841X | 1935-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB478841A true GB478841A (en) | 1938-01-26 |
Family
ID=19786551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28436/36A Expired GB478841A (en) | 1935-11-01 | 1936-10-19 | A process for the manufacture of hydrocarbon mixtures containing a high percentage of alkenes of high molecular weight |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB478841A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE870732C (en) * | 1943-04-14 | 1953-03-16 | Shell Ag | Process for the production of olefins |
-
1936
- 1936-10-19 GB GB28436/36A patent/GB478841A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE870732C (en) * | 1943-04-14 | 1953-03-16 | Shell Ag | Process for the production of olefins |
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