SU499255A1 - The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons - Google Patents
The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbonsInfo
- Publication number
- SU499255A1 SU499255A1 SU1982492A SU1982492A SU499255A1 SU 499255 A1 SU499255 A1 SU 499255A1 SU 1982492 A SU1982492 A SU 1982492A SU 1982492 A SU1982492 A SU 1982492A SU 499255 A1 SU499255 A1 SU 499255A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aromatic hydrocarbons
- solvent
- mixtures
- separation
- diethylene glycol
- Prior art date
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
3434
Показатели одноступенчатой экстракции дл системы о-ксилол fe-нонанSingle stage extraction indicators for o-xylene fe-nonane system
49925S 49925S
Пример 1. Фракцию -катализатора рИформинга 105-140° С, котора содержит 48,7 вес. % ароматических углеводородов, раздел ют экстракцией селективным растворителем , состо щим из 50% диацетата диэтиленгликол и 50% диэтиленгликол . Экстракцию провод т на колонке с насадкой эффективностью 5 теоретических тарелок при 25° С. Соотношение растворител и сырь 3:1. Растворитель из рафинатиого раствора отмывают дистиллированной водой. Ароматические углеводороды выдел ют из полученного экстракта лутем отгона.Example 1. The fraction of β-catalyst for reforming 105-140 ° C, which contains 48.7 weight. The aromatic hydrocarbons are separated by extraction with a selective solvent consisting of 50% diethylene glycol diacetate and 50% diethylene glycol. The extraction was carried out on a column with a nozzle with an efficiency of 5 theoretical plates at 25 ° C. The ratio of solvent and raw material was 3: 1. The solvent from the raffinate solution is washed with distilled water. Aromatic hydrocarbons are recovered from the resulting extract with loot distillate.
Содержание ароматических углеводородов в экстракте 93 вес. %.The content of aromatic hydrocarbons in the extract is 93 wt. %
Содержание ароматических углеводородов в рафинате 4 вес. %.The content of aromatic hydrocarbons in the raffinate 4 wt. %
Пример 2. Фракцию катализата риформинга 62-105° С, котора содержит 23,2 вес. % ароматических углеводородов, раздел ют методом экстрактивной дистилл ции с использованием в качестве селектввното растворител моноацетата диэтиленгликол . Извлечение ароматических углеводородов провод т на колонке непрерывного действи эффективностью 10 теоретических тарелок. Температура верха колонки 65, темтература низа колонки 97° С. Весовое соотношение растворител и сырь 4 : 1 (65 мол. % растворител ). В -процессе экстрактивной дистилл ции отгон ют практически все парафинонафтеновые углеводороды, содержащиес в сырье.Example 2. The fraction of catalyzate reforming 62-105 ° C, which contains 23.2 weight. % aromatic hydrocarbons, separated by an extractive distillation method using as solvent the solvent of diethylene glycol monoacetate. The extraction of aromatic hydrocarbons is carried out on a continuous column with the efficiency of 10 theoretical plates. The temperature of the top of the column is 65, the temperature of the bottom of the column is 97 ° C. The weight ratio of solvent and raw material is 4: 1 (65 mol.% Solvent). In the process of extractive distillation, practically all paraffin-naphthenic hydrocarbons contained in the feed are distilled off.
Концентраци ароматических углеворододов, выделенных из кубового продукта путем отгО:на , 99,9 вес. %.The concentration of aromatic hydrocarbons isolated from the bottom product by otgo: on, 99.9 weight. %
Регенерацию растворител можно осуществл ть любым известным способом (отгон,The regeneration of the solvent can be carried out by any known method (distillation,
реэкстраци ), однако, учитыва , что экстракцию провод т при нормальных услови х, целесообразно осуществл ть «холодную регенерацию с применением реэкстрагента, например н-пентана.reextraction), however, bearing in mind that the extraction is carried out under normal conditions, it is advisable to carry out "cold regeneration using reextractant, for example n-pentane.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1982492A SU499255A1 (en) | 1974-01-03 | 1974-01-03 | The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1982492A SU499255A1 (en) | 1974-01-03 | 1974-01-03 | The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU499255A1 true SU499255A1 (en) | 1976-01-15 |
Family
ID=20571485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1982492A SU499255A1 (en) | 1974-01-03 | 1974-01-03 | The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU499255A1 (en) |
-
1974
- 1974-01-03 SU SU1982492A patent/SU499255A1/en active
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