SU321041A1 - METHOD FOR CLEANING HYDROCARBON GASES - Google Patents
METHOD FOR CLEANING HYDROCARBON GASESInfo
- Publication number
- SU321041A1 SU321041A1 SU1401084A SU1401084A SU321041A1 SU 321041 A1 SU321041 A1 SU 321041A1 SU 1401084 A SU1401084 A SU 1401084A SU 1401084 A SU1401084 A SU 1401084A SU 321041 A1 SU321041 A1 SU 321041A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydrocarbon gases
- gas
- coke oven
- cleaning hydrocarbon
- tributyl phosphate
- Prior art date
Links
- 239000007789 gas Substances 0.000 title description 17
- 238000000034 method Methods 0.000 title description 10
- 229930195733 hydrocarbon Natural products 0.000 title description 4
- 239000004215 Carbon black (E152) Substances 0.000 title description 3
- 150000002430 hydrocarbons Chemical class 0.000 title description 3
- 238000004140 cleaning Methods 0.000 title description 2
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 7
- 239000000571 coke Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 150000001993 dienes Chemical class 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- -1 ethylene hydrocarbons Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Description
Изобретение относитс к промышленным методам очистки и разделени технологических газов нефтепереработки.The invention relates to industrial methods for the purification and separation of process gases from oil refining.
Известен способ очистки углеводородных газов, например коксового газа, путем промывки его трибутилфосфатом при давлении 60-70 ата и температуре 30-40°С.A known method of purification of hydrocarbon gases, such as coke oven gas, by washing it with tributyl phosphate at a pressure of 60-70 at and a temperature of 30-40 ° C.
Недостатками такого способа вл ютс невысока степень очистки газа, а его многоступенчатость.The disadvantages of this method are low degree of gas purification, and its multi-stage.
Предлагаемый способ отличаетс от известного тем, что процесс осуществл ют приThe proposed method differs from the known one in that the process is carried out at
-50°С-50 ° C
О доOh up
и давленииand pressure
температуре от 1-20 ата.temperature from 1-20 ata.
Это .позвол ет практически полностью очистить коксовый газ от ацетиленовых, диеновых и ароматических углеводородов, смол, кислых и сернистых соединений. При этом присутствующие в очищенном газе углеводороды этиленового р да практически не затрачиваютс .This makes it possible to almost completely purify the coke oven gas from acetylene, diene and aromatic hydrocarbons, resins, and acid and sulfur compounds. At the same time, the ethylene hydrocarbons present in the purified gas are practically not consumed.
Регенераци отработанного трибутилфосфата осуществл етс под вакуумом при температуре от -10 до 40° С. Нерегенерированные соединени удал ют из абсорбента разгонкой под вакуумом. Из-за высокой температуры кипени потери трибутилфосфата с газом незначительны. Коррозии аппаратуры не наблюдаетс .The recovery of spent tributyl phosphate is carried out under vacuum at a temperature of from -10 to 40 ° C. Unregenerated compounds are removed from the absorbent by distillation under vacuum. Due to the high boiling point, the loss of tributyl phosphate with gas is negligible. No hardware corrosion is observed.
На чертеже изображена схема установки дл осуществлени предлагаемого способа.The drawing shows an installation diagram for carrying out the proposed method.
Коксовый газ через теплообменник / подают в абсорбер 2 снизу, в котором очищаемый газ и три бутил фосфат движутс npOTHBotoком . Процесс протекает при -40°С, давлении 15 ата и линейной скорости газа 0,5 м/сбк. Очищенный газ через теплообменник / отвод т с установки, а отработанный трибутилфосфат вывод т из нижней части абсорбера 2 и насосом 3 через теплообменник -# подают ра регенерацию под вакуумом на верх ситчатого десорбера 5. В десорбёре предусмотрен rfoдогрев абсорбента в пределах от -10 до 40°С.The coke oven gas through the heat exchanger / is fed to the absorber 2 from below, in which the gas to be purified and the three butyl phosphate move by the npOTHBotok. The process proceeds at -40 ° C, a pressure of 15 atm and a linear gas velocity of 0.5 m / sbc. The purified gas through the heat exchanger is removed from the installation, and the spent tributyl phosphate is removed from the lower part of the absorber 2 and the pump 3 through the heat exchanger - # serves regeneration under vacuum to the top of the desorber 5. The desorber provides for heating the absorbent in the range from -10 to 40 ° s
Вакуум создают вакуум-насосом 6. Регенерированный раствор из нижней части десорбера 5 забирают насосом 7 и подают через теплообменник 4, холодильник iS на верхнюю тарелку абсорбера 2.A vacuum is created by a vacuum pump 6. The regenerated solution from the bottom of the desorber 5 is taken by the pump 7 and fed through a heat exchanger 4, the fridge iS to the upper absorber plate 2.
Часть регенерированного раствора отвод т на вакуумную разгонку в колонну 9 дл отделени нерегенерированных продуктов. Регенерированный раствор из конденсатора /( возвращают в цикл рабочего абсорбента приA portion of the regenerated solution is withdrawn for vacuum distillation into a column 9 for separating un-regenerated products. The regenerated solution from the condenser / (return to the working absorbent cycle at
помощи насоса И. Вакуум в колонне 9 создают при помощи вакуум-насоса J2. Потерю а(5сорбента компенсируют подачей в цикл перед теплообменником 4 свежего трибутилфосфата . Результаты очистки газа представленыusing the pump I. The vacuum in the column 9 is created using a vacuum pump J2. The loss of a (5 absorbent is compensated for by feeding to the cycle in front of the heat exchanger 4 fresh tributyl phosphate. The results of gas purification are presented
Как следзет из таблицы, очистка коксового газа от вредных -примесей идет почти на 100%.As follows from the table, the cleaning of coke oven gas from harmful impurities goes almost 100%.
Пре:Д1мет изоб р-ет еии Pre: D1met image RE-eii
Способ очистки углеводородных газов, например коксового газа, путем промывки его трибутилфосфатом, отличающийс тем, что, с целью повышени степени очистки коксового газа от ацетиленовых, диеновых и ароматических углеводородов, смол, кислых и сернистых соединений, процесс осуществл ют при температуре от О до -50°С и давлении I-20ато.The method of purifying hydrocarbon gases, for example coke oven gas, by washing it with tributyl phosphate, characterized in that, in order to increase the degree of purification of coke oven gas from acetylene, diene and aromatic hydrocarbons, resins, acidic and sulfur compounds, the process is carried out at a temperature from 0 to - 50 ° C and pressure I-20ato.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU321041A1 true SU321041A1 (en) |
Family
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