RU96123847A - METHOD OF CATALYTIC CRAKING WITH A Pseudo-Liquefied Hydrocarbon Catalyst Using a Catalyst Separation and Desorption Unit - Google Patents
METHOD OF CATALYTIC CRAKING WITH A Pseudo-Liquefied Hydrocarbon Catalyst Using a Catalyst Separation and Desorption UnitInfo
- Publication number
- RU96123847A RU96123847A RU96123847/25A RU96123847A RU96123847A RU 96123847 A RU96123847 A RU 96123847A RU 96123847/25 A RU96123847/25 A RU 96123847/25A RU 96123847 A RU96123847 A RU 96123847A RU 96123847 A RU96123847 A RU 96123847A
- Authority
- RU
- Russia
- Prior art keywords
- catalyst
- layer
- passing
- separation tank
- desorption
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title claims 17
- 238000003795 desorption Methods 0.000 title claims 11
- 238000000926 separation method Methods 0.000 title claims 9
- 150000002430 hydrocarbons Chemical class 0.000 title claims 3
- 239000004215 Carbon black (E152) Substances 0.000 title 1
- 230000003197 catalytic Effects 0.000 title 1
- 239000002245 particle Substances 0.000 claims 10
- 239000000203 mixture Substances 0.000 claims 3
- 239000007787 solid Substances 0.000 claims 2
- 238000009825 accumulation Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000004523 catalytic cracking Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
Claims (1)
(a) пропускание углеводородного сырья и твердых частиц катализатора в вертикальную конверсионную зону, включающую канал (12), для получения смеси твердых частиц и газообразных сред;
(b) пропускание смеси частиц катализатора и газообразных сред в емкость сепарации (11) через канал (12), который занимает центральное положение в емкости сепарации (11), а сама емкость сепарации (11) находится внутри емкости реактора (10);
(с) тангенциальный выпуск смеси из канала через выпускное отверстие (16) в емкость сепарации (11);
(d) пропускание частиц катализатора в первый слой (17) катализатора, находящийся в нижней части емкости сепарации (11) и обеспечение контакта частиц катализатора с первым десорбционным газом в первом слое (17);
(e) пропускание частиц катализатора из первого слоя (17) во второй слой (28), находящийся в емкости реактора (10) ниже первого слоя (17) катализатора, обеспечение контакта частиц катализатора со вторым десорбционным газом и пропускание второго десорбционного газа в первый слой (17) катализатора для подпитывания порции первого десорбционного газа;
(f) пропускание частиц катализатора из второго слоя (28) в десорбционную зону (30), обеспечение контакта частиц с третьим десорбционным газом в десорбционной зоне (30) и пропускание третьего десорбционного газа во второй слой (28) катализатора для подпитывания по меньшей мере части второго десорбционного газа;
(g) подачу чистой среды (через сопло (37)) в верхнюю часть емкости реактора (10);
(h) пропускание по меньшей мере части чистой среды через множество суженных отверстий (40), расположенных концентрично вокруг внешней части емкости сепарации (11), в донную часть первого слоя (17) катализатора для подпитывания части первого десорбционного газа;
(i) возвращение десорбированных частиц катализатора (через патрубок (15)) из десорбционной зоны (30); и
(j) накопление газообразных сред, включающих десорбционный газ и катализатор из верхней части емкости сепарации (11), в выпускном канале (20) и отбор газообразных сред из емкости сепарации (11) для возврата.The method of catalytic cracking fluidized catalyst for hydrocarbons, characterized in that it includes:
(a) the transmission of hydrocarbons and solid particles of the catalyst in the vertical conversion zone, including the channel (12), to obtain a mixture of solid particles and gaseous media;
(b) passing the mixture of catalyst particles and gaseous media into the separation tank (11) through the channel (12), which occupies a central position in the separation tank (11), and the separation tank (11) is inside the reactor tank (10);
(c) tangential release of the mixture from the channel through the outlet (16) into the separation tank (11);
(d) passing the catalyst particles to the first catalyst bed (17), located in the lower part of the separation tank (11) and ensuring contact of the catalyst particles with the first desorption gas in the first layer (17);
(e) passing the catalyst particles from the first layer (17) to the second layer (28) located in the reactor tank (10) below the first catalyst layer (17), ensuring contact of the catalyst particles with the second desorption gas and passing the second desorption gas into the first layer (17) a catalyst for feeding a portion of the first desorption gas;
(f) passing the catalyst particles from the second layer (28) to the desorption zone (30), ensuring contact of the particles with the third desorption gas in the desorption zone (30) and passing the third desorption gas to the second catalyst layer (28) to feed at least part of second stripping gas;
(g) supplying a clean medium (through a nozzle (37)) to the upper part of the reactor tank (10);
(h) passing at least a portion of the clean medium through a plurality of tapered holes (40) arranged concentrically around the outer part of the separation tank (11) to the bottom of the first layer (17) of the catalyst to feed part of the first stripping gas;
(i) returning the desorbed catalyst particles (through the nozzle (15)) from the desorption zone (30); and
(j) the accumulation of gaseous media, including the desorption gas and the catalyst from the top of the separation tank (11), in the exhaust channel (20) and the removal of gaseous media from the separation tank (11) for return.
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU96123847A true RU96123847A (en) | 1999-02-10 |
| RU2174143C2 RU2174143C2 (en) | 2001-09-27 |
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