SU186444A1 - METHOD OF OBTAINING ETHYLENE - Google Patents
METHOD OF OBTAINING ETHYLENEInfo
- Publication number
- SU186444A1 SU186444A1 SU816243A SU816243A SU186444A1 SU 186444 A1 SU186444 A1 SU 186444A1 SU 816243 A SU816243 A SU 816243A SU 816243 A SU816243 A SU 816243A SU 186444 A1 SU186444 A1 SU 186444A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- catalyst
- ethylene
- temperature
- pressure
- dimethyl ether
- Prior art date
Links
- 239000005977 Ethylene Substances 0.000 title description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title description 6
- 239000003054 catalyst Substances 0.000 description 7
- QPLDLSVMHZLSFG-UHFFFAOYSA-N copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 6
- LCGLNKUTAGEVQW-UHFFFAOYSA-N dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 however Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
Description
Известен способ получени этилена из газообразных продуктов пиролиза органических веществ путем их обработки серной кислотой , органическими растворител ми, компрессии , охлаждени и ректификации под давлением .A method of producing ethylene from the gaseous products of the pyrolysis of organic substances by treating them with sulfuric acid, organic solvents, compression, cooling and distillation under pressure is known.
Предложенный способ отличаетс от известного тем, что диметиловый эфир подвергают дегидратации как в нормальных услови х, так и при повышенном давлении до 1,5 атм в присутствии катализатора состава А ОзЧ+TiO2 39,1-43,4%, РезОз 0,83-0,95%, Mg 0,15-0,3%, CuO -следы.The proposed method differs from the known one in that dimethyl ether is subjected to dehydration both under normal conditions and at elevated pressure up to 1.5 atm in the presence of a catalyst of composition A.O.C. + TiO2 39.1-43.4%, 0.95%, Mg 0.15-0.3%, CuO -traces.
Выход этилена на пропущенный диметиловый эфир 85-100%.The output of ethylene on the missed dimethyl ether 85-100%.
Пример. В качестве катализатора используют Еленинскую глину В.-Анадольского шамотного завода А12Оз+Т1О2 от 39,1 до 43,4%, РезОз от 0,83 до 0,95, Mg от 0,15 до 0,3% и CuO -следы.Example. Eleninsky clay from the V. Anadol chamotte A12Oz + T1O2 plant from 39.1 to 43.4%, ReZOz from 0.83 to 0.95, Mg from 0.15 to 0.3% and CuO traces are used as a catalyst.
Глину измельчают и отбирают фракцию с размером частиц 2-3 мм, прокаливают при температуре 700-750°С. На выходе из печи продукт реакции охлаждают. Воду конденсируют , а этилен собирают.The clay is crushed and a fraction with a particle size of 2-3 mm is taken, calcined at a temperature of 700-750 ° C. At the exit of the furnace, the reaction product is cooled. Water is condensed and ethylene is collected.
Процесс дегидратации эфира может быть осуществлен при температуре 50-150°С как в нормальных услови х, так и при повышенном давлении до 1,5 атм. Нагрузка на катализатор 15-50 нл/л катализатора. Выход этилена на пропущенный диметиловый эфир 85- 100%.The process of dehydration of the ether can be carried out at a temperature of 50-150 ° C both under normal conditions and at elevated pressure up to 1.5 atm. The catalyst load is 15-50 nl / l of catalyst. Ethylene yield per dimethyl ether 85-100%.
Через трубчатую печь, заполненную катализатором , при температуре 100°С и нормальном давлении пропускают диметиловый эфир. Катализатор загружают в количестве 356 г. Диметиловый эфир подают непрерывно в количестве 170 мг/мин.Dimethyl ether is passed through a tube furnace filled with a catalyst at a temperature of 100 ° C and normal pressure. The catalyst is loaded in an amount of 356 g. Dimethyl ether is continuously fed in an amount of 170 mg / min.
В этих услови х протекает количественна Under these conditions, quantitative
дегидратаци эфира, однако в течение 2- 3 час утрачиваетс активность катализатора, в результате чего необходим периодический прогрев реактора дл отдувки воды. Этот недостаток устран етс повышением в печиdehydration of the ether, however, catalyst activity is lost for 2–3 hours, as a result of which a periodic heating of the reactor is necessary to blow off the water. This disadvantage is eliminated by an increase in the furnace.
температуры и давлени . При давлении 1 - 1,5 атм и температуре 100-150°С процесс дегидратации проходит иа 85%. в течение 15- 20 час. Через 15-20 час реактор продувают воздухом, после чего процесс идет с прежнейtemperature and pressure. At a pressure of 1–1.5 atm and a temperature of 100–150 ° C, the dehydration process takes about 85%. within 15-20 hours. After 15-20 hours, the reactor is purged with air, after which the process continues with the same
скоростью и селективностью.speed and selectivity.
При дальнейшем повышении температуры и давлени снижаетс выход этилена и увеличиваетс количество побочных продуктов. При температуре .ниже предлагаемой дегид3 Предмет изобретени 1. Способ получени этилена, отличающийс тем, что диметиловый эфир подвергают дегидратации при температуре 50-150°С в 5 присутствии катализатора состава А1оО8+ 4 +ТЮ 39,1-43,4%, FegOs 0,83-0,95%, Mg 0,15-0,3%, CuO -следы. 2. Способ по п. 1, отличающийс тем, что процесс ведут при повышенном давлении до 1.5 атм. With a further increase in temperature and pressure, the yield of ethylene decreases and the amount of by-products increases. At a temperature below the proposed dehyd3 83-0.95%, Mg 0.15-0.3%, CuO traces. 2. A method according to claim 1, characterized in that the process is carried out at an elevated pressure of up to 1.5 atm.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU186444A1 true SU186444A1 (en) |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4052479A (en) * | 1973-08-09 | 1977-10-04 | Mobil Oil Corporation | Conversion of methanol to olefinic components |
| US4060568A (en) * | 1976-03-31 | 1977-11-29 | Mobil Oil Corporation | Silica-modified zeolite catalyst and conversion therewith |
| US4232179A (en) * | 1977-08-09 | 1980-11-04 | Petroleo Brasileiro S.A.-Petrobras | Process for preparing ethene |
| RU2446011C2 (en) * | 2006-11-22 | 2012-03-27 | Бп Кемикэлз Лимитед | Method of producing alkenes from oxygenates using heteropoly acid catalysts deposited on support |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4052479A (en) * | 1973-08-09 | 1977-10-04 | Mobil Oil Corporation | Conversion of methanol to olefinic components |
| US4060568A (en) * | 1976-03-31 | 1977-11-29 | Mobil Oil Corporation | Silica-modified zeolite catalyst and conversion therewith |
| US4232179A (en) * | 1977-08-09 | 1980-11-04 | Petroleo Brasileiro S.A.-Petrobras | Process for preparing ethene |
| RU2446011C2 (en) * | 2006-11-22 | 2012-03-27 | Бп Кемикэлз Лимитед | Method of producing alkenes from oxygenates using heteropoly acid catalysts deposited on support |
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