GB816816A - Production of acetylene by pyrolysis - Google Patents
Production of acetylene by pyrolysisInfo
- Publication number
- GB816816A GB816816A GB29564/57A GB2956457A GB816816A GB 816816 A GB816816 A GB 816816A GB 29564/57 A GB29564/57 A GB 29564/57A GB 2956457 A GB2956457 A GB 2956457A GB 816816 A GB816816 A GB 816816A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetylene
- feed
- seconds
- per cent
- pyrolysis
- 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
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title abstract 5
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 title abstract 5
- 238000000197 pyrolysis Methods 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- 229910021384 soft carbon Inorganic materials 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 abstract 1
- 230000001627 detrimental effect Effects 0.000 abstract 1
- 229910021385 hard carbon Inorganic materials 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/76—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
In the pyrolysis of methane to acetylene, the feed material is passed through a reaction zone heated to pyrolysis temperature and the soft carbon removed from the reaction zone after not more than 5 seconds of pyrolysis. The soft carbon is light and burns with a visible flame and this material is detrimental to the production of acetylene. The hard carbon burns very slowly even at high temperatures and does not affect the acetylene yield. In a preferred embodiment, a reactor made of pure aluminium oxide 20 inches long and 7/64 inch internal diameter was heated to temperatures from 1460 DEG to 1630 DEG C. and a feed gas comprising 95.0 per cent methane, 2.94 per cent nitrogen, and 1.29 per cent ethane was passed through for a period of about 1.5 seconds. The feed was then stopped and air introduced into the tube at a rate of about 5 times the flow of the feed of the gases for about 2 seconds causing the soft carbon to burn off. The tube was then reheated to the initial temperature by means of a resistance ribbon and the feed again passed after 5-10 seconds. The product contained 4-11 per cent of acetylene. Pressures of 0.5 to 1.5 atmospheres may be utilized.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US816816XA | 1956-10-01 | 1956-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB816816A true GB816816A (en) | 1959-07-22 |
Family
ID=22165701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29564/57A Expired GB816816A (en) | 1956-10-01 | 1957-09-19 | Production of acetylene by pyrolysis |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB816816A (en) |
-
1957
- 1957-09-19 GB GB29564/57A patent/GB816816A/en not_active Expired
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