公开(公告)号：CA2982686A1

公开(公告)日：2016-11-03

申请号：CA2982686

申请日：2016-04-28

Applicant: PROSERNAT

Inventor： FILLATRE EMILE ,  PERDU GAUTHIER ,  MARES BENOIT

IPC: B01D53/14 ,  C10L3/10

Abstract: The present invention is directed to a process for the removal of aromatic hydrocarbons from a lean acid gas containing less than 20 mol.% of H2S, comprising : a) contacting the lean acid gas stream (1) with a H2S-selective liquid absorbent solution (29) in a first absorption zone (2) to produce a gas stream depleted in H2S (3) and an absorbent solution enriched in H2S (4), b) introducing the absorbent solution (4) into a non-thermic stripping zone (8) where it is contacted with a stripping gas stream (7) to obtain an absorbent solution depleted in C4 + aliphatic and aromatic hydrocarbons (9) and a stripping gas stream enriched in aromatic and C4 + aliphatic hydrocarbons (10), c) contacting the stripping gas stream (10)obtained in step b) with a H2S-selective liquid absorbent solution (28) in a second absorption zone (12) to obtain a stripping gas stream depleted in H2S (13), and an absorbent solution enriched in H2S (14) d) introducing the absorbent solution (9) obtained in step b) into a desorption zone (16) wherein the H2S-selective liquid absorbent solution (17) is recovered and a lean acid gas is produced.

公开(公告)号：CA2977451A1

公开(公告)日：2016-09-15

申请号：CA2977451

申请日：2016-03-11

Applicant: PROSERNAT

Inventor： MARES BENOIT

IPC: B01D53/86 ,  C01B17/04

Abstract: The invention is a process for removing sulfur from a gas containing sulfur compounds as H2S, SO2, COS, CS2..., in a quantity of up to 15%wt; it particularly concerns gases emanating from the Claus process. The process comprises a first hydrogenation of the sulfur compounds into H2S, the hydrogenation gas being used to regenerate a deactivated bed of oxidation catalyst, both being carried out at 200-500° C. After sulfur removal, the resulting gas undergoes a second hydrogenation step and then a direct oxidation step, said step being operated under the dew point of sulfur to trap the formed sulfur in the catalyst. In the further cycle, the gas streams are switched so as to regenerate the catalyst in run which is deactivated. In a preferred embodiment, the process operates in at least 2 identical reactors, each containing a bed of hydrogenation catalyst followed (in the sense of the flow of gas) by a direct oxidation catalyst bed containing an embedded heat exchanger.

公开(公告)号：CA2977451C

公开(公告)日：2022-12-13

申请号：CA2977451

申请日：2016-03-11

Applicant: PROSERNAT

Inventor： MARES BENOIT

IPC: B01D53/86 ,  C01B17/04

Abstract: The invention is a process for removing sulfur from a gas containing sulfur compounds as H2S, SO2, COS, CS2..., in a quantity of up to 15%wt; it particularly concerns gases emanating from the Claus process. The process comprises a first hydrogenation of the sulfur compounds into H2S, the hydrogenation gas being used to regenerate a deactivated bed of oxidation catalyst, both being carried out at 200-500° C. After sulfur removal, the resulting gas undergoes a second hydrogenation step and then a direct oxidation step, said step being operated under the dew point of sulfur to trap the formed sulfur in the catalyst. In the further cycle, the gas streams are switched so as to regenerate the catalyst in run which is deactivated. In a preferred embodiment, the process operates in at least 2 identical reactors, each containing a bed of hydrogenation catalyst followed (in the sense of the flow of gas) by a direct oxidation catalyst bed containing an embedded heat exchanger.

公开(公告)号：ES2711612T3

公开(公告)日：2019-05-06

申请号：ES15158886

申请日：2015-03-12

Applicant: PROSERNAT

Inventor： MARES BENOIT

IPC: B01D53/86 ,  C01B17/04

Abstract: Proceso para la eliminación de compuestos de azufre contenidos en un gas a procesar que contiene hasta un 15 % en volumen de compuestos de azufre expresados como H2S, llevándose a cabo dicho proceso en al menos dos zonas de oxidación directa separadas, estando una primera en fase de reacción en el presente ciclo, mientras que el catalizador desactivado de una segunda zona se regenera, funcionando el proceso con las siguientes etapas sucesivas: 1) la alimentación, es decir, el gas a tratar que contiene compuestos de azufre + H2, sufre una primera etapa de hidrogenación de dichos compuestos de azufre en H2S, en presencia de hidrógeno sobre un catalizador de hidrogenación, entrando el gas a una temperatura de 200-320 °C, y más preferiblemente de 250 a 280 °C, y el gas caliente generado en la primera etapa de hidrogenación tiene una temperatura entre 200 °C y 500 °C; 2) regeneración del catalizador de oxidación directa desactivado en el ciclo anterior, llevándose a cabo dicha regeneración in situ por el paso del gas caliente generado en la primera etapa de hidrogenación, a una temperatura por encima del punto de rocío del azufre, generalmente a una temperatura de 200 a 500 °C, y más generalmente de 250 a 350 °C, deteniéndose la inyección de oxígeno antes de la regeneración, enfriando después el gas obtenido, generalmente de 122 a 170 °C, condensando y separando el azufre elemental, y obteniéndose un gas agotado de azufre elemental y un catalizador regenerado, 3) una segunda etapa de hidrogenación del gas agotado de azufre elemental en presencia de hidrógeno sobre un catalizador de hidrogenación, entrando el gas a una temperatura de 122 a 320 °C; 4) oxidación directa del H2S del gas obtenido en la etapa 3) en azufre elemental en presencia de oxígeno sobre un catalizador de oxidación directa, a una temperatura controlada por debajo del punto de rocío del azufre, generalmente de 20 a 180 °C, preferiblemente 80-180 °C y más preferiblemente de 110 a 140 °C, depositándose el azufre elemental en el lecho del catalizador y obteniéndose un gas purificado.

公开(公告)号：RU2703247C2

公开(公告)日：2019-10-15

申请号：RU2017134117

申请日：2016-03-11

Applicant: PROSERNAT

Inventor： MARES BENOIT

IPC: B01D53/86

Abstract: Изобретениеотноситсяк способуудалениясоединенийсерыизгазаи извлечениясерыизгазовогопотока, содержащегодо 15 мас.% серы. Вчастности, рассматриваютсягазы, выделяющиесяв результатепроцессаКлауса. Этотспособвключаетв себяпервоегидрированиесоединенийсерыв HS, газ, используемыйдлягидрирования, используетсятакжедлярегенерацииинактивированногослоякатализатораокисления. Обестадииосуществляютсяпри 200-500°C. Послеудалениясерыполученныйгазпроходитвторойэтапгидрирования. Затемследуетэтаппрямогоокисления. Указанныйэтапосуществляетсянижеточкиросысерыдляулавливанияобразовавшейсясерыв катализаторе. Вследующемциклегазовыепотокипереключаютсятак, чтобырегенерироватькатализатор, которыйинактивирован, находу. Впредпочтительномвариантеосуществленияспособработаетв двухидентичныхреакторах, каждыйизкоторыхсодержитслойкатализаторагидрированияс последующим (всмыслепотокагаза) слоемкатализаторапрямогоокисления, содержащимвстроенныйтеплообменник. Изобретениеобеспечиваетсовершенствованиеспособаизвлечениясерыи достигаетстепенидостижениявыше 99,6%. 9 з.п. ф-лы, 2 ил.

公开(公告)号：AU2016256240A1

公开(公告)日：2017-10-26

申请号：AU2016256240

申请日：2016-04-28

Applicant: PROSERNAT

Inventor： FILLATRE EMILE ,  PERDU GAUTHIER ,  MARES BENOIT

IPC: B01D53/14 ,  C10L3/10

Abstract: The present invention is directed to a process for the removal of aromatic hydrocarbons from a lean acid gas containing less than 20 mol.% of H2S, comprising : a) contacting the lean acid gas stream (1) with a H

公开(公告)号：AU2016231057A1

公开(公告)日：2017-09-14

申请号：AU2016231057

申请日：2016-03-11

Applicant: PROSERNAT

Inventor： MARES BENOIT

IPC: B01D53/86 ,  C01B17/04

Abstract: The invention is a process for removing sulfur from a gas containing sulfur compounds as H2S, SO2, COS, CS2..., in a quantity of up to 15%wt; it particularly concerns gases emanating from the Claus process. The process comprises a first hydrogenation of the sulfur compounds into H2S, the hydrogenation gas being used to regenerate a deactivated bed of oxidation catalyst, both being carried out at 200-500° C. After sulfur removal, the resulting gas undergoes a second hydrogenation step and then a direct oxidation step, said step being operated under the dew point of sulfur to trap the formed sulfur in the catalyst. In the further cycle, the gas streams are switched so as to regenerate the catalyst in run which is deactivated. In a preferred embodiment, the process operates in at least 2 identical reactors, each containing a bed of hydrogenation catalyst followed (in the sense of the flow of gas) by a direct oxidation catalyst bed containing an embedded heat exchanger.