UA19962A1 - METHOD OF OBTAINING STYRENE - Google Patents
METHOD OF OBTAINING STYRENEInfo
- Publication number
- UA19962A1 UA19962A1 UA3838883A UA3838883A UA19962A1 UA 19962 A1 UA19962 A1 UA 19962A1 UA 3838883 A UA3838883 A UA 3838883A UA 3838883 A UA3838883 A UA 3838883A UA 19962 A1 UA19962 A1 UA 19962A1
- Authority
- UA
- Ukraine
- Prior art keywords
- kcal
- heat
- styrene
- ethylbenzene
- condensation
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Изобретение относится к области получения стирола каталитическим дегидрированием этилбензола и может быть использовано в производствах стирола и других винилароматических углеводородов. Цель – сокращение энергозатрат за счет использования тепла продуктов дегидрирования этилбензола. Поставленная цель достигнута способом получения стирола каталитическим дегидрированием этилбензола в присутствии водяного пара при 600°С. Конденсацию продуктов реакции ведут охлаждением за счет косвенного теплообмена с паровым конденсатом до 150-1801С с последующим компримированием до давления 3-8 ата. После этого продукт конденсируют с помощью косвенного теплообмена с паровым конденсатом. Способ предусматривает использование тепла катализата для подогрева исходных реагентов, а тепла конденсации - для получения водяного пара низкого давления 0,7-0,91 ата. Таким образом, за счет повышения давления на стадии конденсации утилизируется 306 ккал/кг (против 140 ккал/кг) тепла, а при охлаждении катализата - 198 ккал/кг (против 140 ккал/кг). 1 ил.The invention relates to the field of styrene production by catalytic dehydrogenation of ethylbenzene and can be used in the production of styrene and other vinyl aromatic hydrocarbons. The goal is to reduce energy consumption by using the heat of ethylbenzene dehydrogenation products. This goal was achieved by the method of producing styrene by catalytic dehydrogenation of ethylbenzene in the presence of steam at 600 ° C. Condensation of the reaction products is carried out by cooling due to indirect heat exchange with steam condensate to 150-1801C, followed by compression to a pressure of 3-8 ata. The product is then condensed by indirect heat exchange with steam condensate. The method involves the use of the heat of the catalyzate for heating the initial reagents, and the heat of condensation to obtain water vapor of low pressure 0.7-0.91 ata. Thus, due to the pressure increase at the condensation stage, 306 kcal / kg (versus 140 kcal / kg) of heat is utilized, and when the catalyzate is cooled, 198 kcal / kg (versus 140 kcal / kg). 1 ill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UA3838883A UA19962A1 (en) | 1984-07-26 | 1984-07-26 | METHOD OF OBTAINING STYRENE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UA3838883A UA19962A1 (en) | 1984-07-26 | 1984-07-26 | METHOD OF OBTAINING STYRENE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UA19962A1 true UA19962A1 (en) | 1997-12-25 |
Family
ID=74532410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| UA3838883A UA19962A1 (en) | 1984-07-26 | 1984-07-26 | METHOD OF OBTAINING STYRENE |
Country Status (1)
| Country | Link |
|---|---|
| UA (1) | UA19962A1 (en) |
-
1984
- 1984-07-26 UA UA3838883A patent/UA19962A1/en unknown
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