GB957631A - Improvements in or relating to the production of unsaturated hydrocarbons - Google Patents
Improvements in or relating to the production of unsaturated hydrocarbonsInfo
- Publication number
- GB957631A GB957631A GB4252061A GB4252061A GB957631A GB 957631 A GB957631 A GB 957631A GB 4252061 A GB4252061 A GB 4252061A GB 4252061 A GB4252061 A GB 4252061A GB 957631 A GB957631 A GB 957631A
- Authority
- GB
- United Kingdom
- Prior art keywords
- propylene
- feed
- steam
- unsaturated hydrocarbons
- effected
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
- C07C4/02—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by cracking a single hydrocarbon or a mixture of individually defined hydrocarbons or a normally gaseous hydrocarbon fraction
- C07C4/04—Thermal processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Unsaturated hydrocarbons are obtained by subjecting a feed containing propylene and steam to temperatures of 900-1200 DEG C. for less than 0.01 second and shock cooling the effluent. The products include acetylene, ethylene, methylacetylene, allene, butadiene, and butenes. The feed may contain 34-93.4% mol. of steam and 6.6-66% mol. of propylene and is heated to 900-1200 DEG C. for 0.003-0.01 second at a total pressure of at least one atmosphere and a propylene partial pressure of 50-500 mm. Hg. Heating is effected by mixing with a hot gas, e.g. nitrogen or superheated steam, passing through an electric arc, partial combustion of the propylene feed or by mixing with heated solid particles, e.g. of carbon. Cooling, to 350 DEG C. or below, is effected with a cold water or oil spray, with cool gases or with powdered, inert solid, e.g. carbon.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8170661A | 1961-01-10 | 1961-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB957631A true GB957631A (en) | 1964-05-06 |
Family
ID=22165862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4252061A Expired GB957631A (en) | 1961-01-10 | 1961-11-28 | Improvements in or relating to the production of unsaturated hydrocarbons |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH395962A (en) |
| DE (1) | DE1468380A1 (en) |
| GB (1) | GB957631A (en) |
| LU (1) | LU41066A1 (en) |
-
1961
- 1961-11-28 GB GB4252061A patent/GB957631A/en not_active Expired
-
1962
- 1962-01-05 DE DE19621468380 patent/DE1468380A1/en active Pending
- 1962-01-08 LU LU41066D patent/LU41066A1/xx unknown
- 1962-01-10 CH CH25462A patent/CH395962A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH395962A (en) | 1965-07-31 |
| DE1468380A1 (en) | 1968-12-05 |
| LU41066A1 (en) | 1962-03-08 |
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