GB870737A - Process for extracting acetylene from pyrolysis gases obtained by the thermal decomposition of hydrocarbons - Google Patents
Process for extracting acetylene from pyrolysis gases obtained by the thermal decomposition of hydrocarbonsInfo
- Publication number
- GB870737A GB870737A GB3154558A GB3154558A GB870737A GB 870737 A GB870737 A GB 870737A GB 3154558 A GB3154558 A GB 3154558A GB 3154558 A GB3154558 A GB 3154558A GB 870737 A GB870737 A GB 870737A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetylene
- tower
- remove
- gas
- hydrocarbons
- 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
- C07C7/00—Purification; Separation; Use of additives
- C07C7/11—Purification; Separation; Use of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
<PICT:0870737/IV (b)/1> Acetylene is recovered from pyrolysis gas, which has been freed of carbon black, tar, carbon dioxide, moisture and condensable hydrocarbons, by washing with kerosene at -10 to -40 DEG C. and under pressure to dissolve selectively higher acetylenes and unsaturated hydrocarbons other than acetylene and ethylene, selectively dissolving the acetylene in the remaining gas in anhydrous liquid ammonia at -10 to -70 DEG C. and under pressure and recovering the acetylene from the resultant solution. Pyrolysis gas is stored in gas holder 2, then washed with aqueous ammonia in tower 4 to remove carbon dioxide, mixed with methanol and cooled in cooler 5 to remove water and liquid hydrocarbons. The gas is contacted in tower 9 with kerosene, e.g. boiling between 175 and 225 DEG C. and having a molecular weight of 180, at 1-10 atmospheres. The solution is stripped to remove acetylene and ethylene which are recycled then further stripped of other gases before being returned to tower 9. Overhead gas from tower 9 is contacted with liquid ammonia in tower 20 at 1 to 10 atmospheres. By partial expansion and/or heating, ethylene and some acetylene is released in tower 27 and recycled. Acetylene is recovered in tower 30 and washed with water to remove ammonia. Part of the liquid ammonia is distilled to remove high boiling impurities before recycling.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3154558A GB870737A (en) | 1958-10-02 | 1958-10-02 | Process for extracting acetylene from pyrolysis gases obtained by the thermal decomposition of hydrocarbons |
| FR803014A FR1232803A (en) | 1958-10-02 | 1959-08-18 | Process for the concentration and purification of acetylene contained in thermal hydrocarbon decomposition gases |
| DES64567A DE1159932B (en) | 1958-10-02 | 1959-08-24 | Process for the production of pure acetylene |
| ES0251700A ES251700A1 (en) | 1958-10-02 | 1959-08-25 | Process for extracting acetylene from pyrolysis gases obtained by the thermal decomposition of hydrocarbons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3154558A GB870737A (en) | 1958-10-02 | 1958-10-02 | Process for extracting acetylene from pyrolysis gases obtained by the thermal decomposition of hydrocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB870737A true GB870737A (en) | 1961-06-21 |
Family
ID=10324719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3154558A Expired GB870737A (en) | 1958-10-02 | 1958-10-02 | Process for extracting acetylene from pyrolysis gases obtained by the thermal decomposition of hydrocarbons |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1159932B (en) |
| ES (1) | ES251700A1 (en) |
| FR (1) | FR1232803A (en) |
| GB (1) | GB870737A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106431814A (en) * | 2016-10-12 | 2017-02-22 | 西南化工研究设计院有限公司 | Acetylene concentration process and device |
| CN114644348A (en) * | 2022-03-18 | 2022-06-21 | 西安吉利电子新材料股份有限公司 | Preparation system and method for directly producing electronic-grade ammonia water from ammonia gas |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL85716C (en) * | 1953-04-13 |
-
1958
- 1958-10-02 GB GB3154558A patent/GB870737A/en not_active Expired
-
1959
- 1959-08-18 FR FR803014A patent/FR1232803A/en not_active Expired
- 1959-08-24 DE DES64567A patent/DE1159932B/en active Pending
- 1959-08-25 ES ES0251700A patent/ES251700A1/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106431814A (en) * | 2016-10-12 | 2017-02-22 | 西南化工研究设计院有限公司 | Acetylene concentration process and device |
| CN106431814B (en) * | 2016-10-12 | 2019-05-21 | 西南化工研究设计院有限公司 | A kind of technique and device of acetylene concentration |
| CN114644348A (en) * | 2022-03-18 | 2022-06-21 | 西安吉利电子新材料股份有限公司 | Preparation system and method for directly producing electronic-grade ammonia water from ammonia gas |
| CN114644348B (en) * | 2022-03-18 | 2023-12-12 | 西安吉利电子新材料股份有限公司 | Preparation system and method for directly producing electronic grade ammonia water from ammonia gas |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1232803A (en) | 1960-10-12 |
| DE1159932B (en) | 1963-12-27 |
| ES251700A1 (en) | 1960-03-16 |
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