SU643179A1 - Method of regenerating coked cracking catalyst - Google Patents
Method of regenerating coked cracking catalystInfo
- Publication number
- SU643179A1 SU643179A1 SU752176987A SU2176987A SU643179A1 SU 643179 A1 SU643179 A1 SU 643179A1 SU 752176987 A SU752176987 A SU 752176987A SU 2176987 A SU2176987 A SU 2176987A SU 643179 A1 SU643179 A1 SU 643179A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- catalyst
- cracking catalyst
- zone
- coked cracking
- regenerating coked
- Prior art date
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
Description
(54) СПСХЗОБ РЕГЕНЕРАЦИИ ЗАКОКСОВАННОГО КАТАЛИЗАТОРА КРЕКИНГА(54) SPECSABLE REGENERATION OF THE CROCKED COATED CATALYST
и после разцеле н остаетс неизменной ().and after the ratsele n remains unchanged ().
Регенерацию потоков провод т по jjao- ной техиологнн в двухзониом регенерйто- ре. Зоны регенератора расположены одна над другойи разделены провальной решеткой , воздух подаетс в нижнюю зону реге нератора.The regeneration of the fluxes is carried out using a jjao technology in a dual-zone regenerator. The zones of the regenerator are located one above the other and are separated by a failing grate; air is supplied to the lower zone of the regenerator.
катализатора с размером 0,,С6 мм регенерируют в нижней зоне воздухом при температуре 600 С, причем концентраци кислорода в дымовых газах на выходе из зоны поддерживаетс около 13 аб.%, что обеспегивает высокую скорость горени в нижней зоне. Содержа1Гие кокса на катализаторе снижаетс до 0,25 вес,%. catalyst with a size of 0,, C6 mm is regenerated in the lower zone with air at a temperature of 600 ° C, and the oxygen concentration in the flue gases at the exit from the zone is maintained at about 13 ab.%, which ensures a high burning rate in the lower zone. The content of coke on the catalyst is reduced to 0.25% by weight.
Часттщы катализатора с размером 0,06-1,О мм подают в верхнюю зону и регенерир 1от в две стадии. Первую стадию регенерации провод т при температуре в верхней зоне при контакте с дймовыми газами, поступающими из нижней зоны с концентрацией кислородаParticles of catalyst with a size of 0.06-1, O mm are fed to the upper zone and regenerator 1from two stages. The first stage of regeneration is carried out at a temperature in the upper zone when in contact with hemispheric gases coming from the lower zone with oxygen concentration.
13 об.%. Ко1Щ Л1Тр11иш кислорода в дьтмо- вых гасшх на выходе из верхней зоны сос тавл ет 2 об.%. Благодар П0 ижо1и10й концентрации кислорода предотвращаетс перегрев сильно закоксованного катализатора , в результате снижаетс спекание и растрескивание катализатора. На первой стадии закоксованность фракции катализатора 0,06-1,0 мм уменьшаетс с 1,8 до 0,8 вес.%, т.е. до уровн закоксо- ванности фракции 0,ОО5-«0,006 мм.13% by volume The amount of oxygen in the gas expellers at the exit from the upper zone is 2 vol.%. Due to the oxygen concentration of the oxygen concentration, overheating of the highly coked catalyst is prevented, and as a result, the sintering and cracking of the catalyst are reduced. In the first stage, the coking of the catalyst fraction of 0.06-1.0 mm decreases from 1.8 to 0.8 wt.%, I.e. to the level of coking of fraction 0, ОО5- «0.006 mm.
Вторую стадию регенерации фракции 0,06-.,О мм производ т в нижней зоне совместно с мелкой фракцией 0,005 - 0,06 мм при повышенной средней концентрации кислорода, что позвол ет улучшить полноту выжига кокса.The second stage of the regeneration of the 0.06 -., О mm fraction is carried out in the lower zone together with the fine fraction of 0.005 - 0.06 mm with an elevated average oxygen concentration, which makes it possible to improve the complete burning of coke.
Смесь обеих фракций катализатора после регенерации вывод т из нижней .зоны ,со средней закоксованностью 0,25 вес.% в количестве 99,75 вес .ч, в 1 ч и подают в реактор каталитического крекинга,The mixture of both fractions of the catalyst after regeneration is removed from the lower zone, with an average coking of 0.25 wt.% In the amount of 99.75 wt. H, per hour and fed into the catalytic cracking reactor,
В таблице приведены результаты рег&нерации закоксованных катализаторов.The table shows the results of the registration of coked catalysts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752176987A SU643179A1 (en) | 1975-09-30 | 1975-09-30 | Method of regenerating coked cracking catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752176987A SU643179A1 (en) | 1975-09-30 | 1975-09-30 | Method of regenerating coked cracking catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
SU643179A1 true SU643179A1 (en) | 1979-01-25 |
Family
ID=20633212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU752176987A SU643179A1 (en) | 1975-09-30 | 1975-09-30 | Method of regenerating coked cracking catalyst |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU643179A1 (en) |
-
1975
- 1975-09-30 SU SU752176987A patent/SU643179A1/en active
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