JPS577428A - Preparation of olefin - Google Patents
Preparation of olefinInfo
- Publication number
- JPS577428A JPS577428A JP7980480A JP7980480A JPS577428A JP S577428 A JPS577428 A JP S577428A JP 7980480 A JP7980480 A JP 7980480A JP 7980480 A JP7980480 A JP 7980480A JP S577428 A JPS577428 A JP S577428A
- Authority
- JP
- Japan
- Prior art keywords
- decomposition
- reaction
- raw material
- hydrocarbon raw
- straight
- 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.)
- Pending
Links
- 150000001336 alkenes Chemical class 0.000 title abstract 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title abstract 3
- 238000002360 preparation method Methods 0.000 title abstract 2
- 239000002994 raw material Substances 0.000 abstract 5
- 239000004215 Carbon black (E152) Substances 0.000 abstract 4
- 229930195733 hydrocarbon Natural products 0.000 abstract 4
- 150000002430 hydrocarbons Chemical group 0.000 abstract 4
- 238000003421 catalytic decomposition reaction Methods 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 3
- 150000003138 primary alcohols Chemical class 0.000 abstract 3
- 238000005979 thermal decomposition reaction Methods 0.000 abstract 3
- 238000004939 coking Methods 0.000 abstract 2
- 238000000354 decomposition reaction Methods 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 238000005235 decoking Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
PURPOSE: To increase the yield and suppress the coking in the preparation of an olefin by the thermal or catalytic decomposition of hydrocarbon raw material, by carrying out the decomposition reaction in the presence of a specific amount of a straight-chain primary alcohol having a specific number of carbon atoms.
CONSTITUTION: In the thermal or catalytic decomposition of a hydrocarbon raw material, esp. a heavy hydrocarbon raw materials to obtain an olefin, the decomposition reaction is carried out by adding 0.001W2.0pts.vol., based on 1pt.vol of the raw material, of a 1W5C straight-chain primary alcohol to the reaction system. The alcohol is pref. mixed with the hydrocarbon raw material before reaction. The reaction is carried out at 780W830°C and 0W0.3kg/cm2G. The contact time in the thermal decomposition is 0.3W0.6sec and the space velocity in the catalytic decomposition is 2W50hr-1. Since the increase of the amount of the straight-chain primary alcohol added decreases the yield of propylene, the ratio of ethylene/propylene can be easily controlled.
EFFECT: The suppression of coking elongates the life of the apparatus, and reduces the cost of decoking process.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7980480A JPS577428A (en) | 1980-06-13 | 1980-06-13 | Preparation of olefin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7980480A JPS577428A (en) | 1980-06-13 | 1980-06-13 | Preparation of olefin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS577428A true JPS577428A (en) | 1982-01-14 |
Family
ID=13700397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7980480A Pending JPS577428A (en) | 1980-06-13 | 1980-06-13 | Preparation of olefin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS577428A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988003942A1 (en) * | 1986-11-29 | 1988-06-02 | Seibu Oil Company Limited | Process for cracking petroleum hydrocarbon oil by distillation |
| CN101210190B (en) | 2006-12-27 | 2012-06-27 | 中国石油化工股份有限公司 | Method for preparing low-carbon olefin and gasoline by synchronously feeding heavy petroleum hydrocarbon and methanol |
-
1980
- 1980-06-13 JP JP7980480A patent/JPS577428A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988003942A1 (en) * | 1986-11-29 | 1988-06-02 | Seibu Oil Company Limited | Process for cracking petroleum hydrocarbon oil by distillation |
| US4931170A (en) * | 1986-11-29 | 1990-06-05 | Seibu Oil Co., Ltd. | Method for lightening petroleum hydrocarbon oil by distillation |
| EP0290624B1 (en) * | 1986-11-29 | 1992-04-29 | Seibu Oil Company Limited | Process for lightening petroleum hydrocarbon oil by distillation |
| CN101210190B (en) | 2006-12-27 | 2012-06-27 | 中国石油化工股份有限公司 | Method for preparing low-carbon olefin and gasoline by synchronously feeding heavy petroleum hydrocarbon and methanol |
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