FR2979422A1 - Apparatus for production of carbon dioxide-enriched flow of fluid by distillation at sub-ambient temperature, has envelope surrounding fractionating column and separating chamber, and perlite placed between envelope and column - Google Patents

Apparatus for production of carbon dioxide-enriched flow of fluid by distillation at sub-ambient temperature, has envelope surrounding fractionating column and separating chamber, and perlite placed between envelope and column Download PDF

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Publication number
FR2979422A1
FR2979422A1 FR1157448A FR1157448A FR2979422A1 FR 2979422 A1 FR2979422 A1 FR 2979422A1 FR 1157448 A FR1157448 A FR 1157448A FR 1157448 A FR1157448 A FR 1157448A FR 2979422 A1 FR2979422 A1 FR 2979422A1
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France
Prior art keywords
column
carbon dioxide
envelope
distillation
distillation column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR1157448A
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French (fr)
Inventor
Denis Blauwart
Philippe Court
Christophe Szamlewski
Xavier Traversac
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Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to FR1157448A priority Critical patent/FR2979422A1/en
Publication of FR2979422A1 publication Critical patent/FR2979422A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0295—Start-up or control of the process; Details of the apparatus used, e.g. sieve plates, packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
    • F25J3/0223—H2/CO mixtures, i.e. synthesis gas; Water gas or shifted synthesis gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0266—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/70—Refluxing the column with a condensed part of the feed stream, i.e. fractionator top is stripped or self-rectified
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/70—Flue or combustion exhaust gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/80—Separating impurities from carbon dioxide, e.g. H2O or water-soluble contaminants
    • F25J2220/82—Separating low boiling, i.e. more volatile components, e.g. He, H2, CO, Air gases, CH4
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/30—Details about heat insulation or cold insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/40—Vertical layout or arrangement of cold equipments within in the cold box, e.g. columns, condensers, heat exchangers etc.
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/42—Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

Abstract

The apparatus (1) has a cylindrical separating chamber (9) for separating carbon dioxide-enriched flow of a fluid at sub-ambient temperature. The separating chamber is placed below a fractionating column (11) when the apparatus is operated. A cylindrical envelope (5) surrounds the fractionating column and the chamber. A perlite (21) is placed between the envelope and the column, and a conduit (13) withdraws the carbon dioxide-enriched flow from the column. The chamber exhibits diameter equal to that of the column. The column and the chamber are connected by a cylindrical ring (23). An independent claim is also included for a method for distillation of carbon dioxide-enriched flow of fluid.

Description

La présente invention est relative à un appareil et à un procédé de production d'un débit riche en dioxyde de carbone par distillation. Un appareil de production d'un débit riche en dioxyde de carbone comprend une colonne opérant à des températures en dessous de 0°C mais au-dessus des températures cryogéniques. Il est donc nécessaire d'installer la colonne dans une enveloppe métallique appelée boîte froide et de l'entourer d'isolant, généralement de la perlite. L'invention vise à diminuer le poids de l'enveloppe métallique maintenant l'isolant tout en optimisant le temps de transport et réduisant le temps de montage sur site. The present invention relates to an apparatus and a method for producing a carbon dioxide rich flow rate by distillation. An apparatus for producing a flow rich in carbon dioxide comprises a column operating at temperatures below 0 ° C but above cryogenic temperatures. It is therefore necessary to install the column in a metal envelope called cold box and surround it with insulation, usually perlite. The aim of the invention is to reduce the weight of the metal casing maintaining the insulation while optimizing the transport time and reducing the time of assembly on site.

Elle vise également à faciliter l'assemblage de l'appareil. US-A-3130026, US-A-3498067 et JP-A-5607763 décrivent des appareils de séparation d'un mélange riche en dioxyde de carbone où un gaz d'alimentation sert à chauffer le liquide de cuve d'une colonne de distillation, est partiellement condensé et est envoyé dans un séparateur de phases, le liquide du séparateur de phases servant à alimenter la colonne. Ces documents montrent tous le séparateur de phases positionné à côté de la colonne de distillation. La présente invention permet une disposition plus compacte en disposant le séparateur de phases, ou un autre élément devant alimenter la colonne en liquide, en dessous de cette colonne. La pression du liquide provenant du séparateur de phases est suffisante pour surmonter la pression hydrostatique et pour envoyer le liquide en haut de la colonne, sans l'usage d'une pompe ou d'une injection de gaz. L'enveloppe à section circulaire, de par sa forme, permet une meilleure tenue aux sollicitations présente sur le site (par exemple par le vent ou par séismes), ce qui permet une plus grande couverture des cas de dimensionnement. It also aims to facilitate the assembly of the device. US-A-3130026, US-A-3498067 and JP-A-5607763 disclose apparatus for separating a mixture rich in carbon dioxide where a feed gas is used to heat the bottoms liquid of a distillation column , is partially condensed and is sent to a phase separator, the liquid of the phase separator for feeding the column. These documents all show the phase separator positioned next to the distillation column. The present invention allows a more compact arrangement by arranging the phase separator, or another element to feed the column with liquid, below this column. The pressure of the liquid from the phase separator is sufficient to overcome the hydrostatic pressure and to send the liquid to the top of the column without the use of a pump or gas injection. The circular section of the envelope, by its shape, allows a better resistance to stresses present on the site (for example by wind or earthquakes), which allows a greater coverage of cases sizing.

Pour le 002, la température de liquéfaction est supérieure à -57°C aux pressions utilisées pour la distillation, contrairement aux températures cryogéniques rencontrées sur les unités d'air ou de CO qui sont inférieures à 170°C. Il est envisageable sur les unités de production de 002, de réduire les distances d'isolations de moitié vis-à-vis des températures à -196°C. De plus, de par la forme ronde de l'enveloppe, le volume d'isolant (traditionnellement de la perlite) diminue d'environ 30%. La faible dilatation thermique des tuyauteries permet, par de courtes lyres, de souder les tuyauteries sur l'enveloppe au droit des traversées, ce qui évite tout raidissage pour compenser le manque de matière. La faible densité de tuyauterie des appareils de production de CO2 ainsi que la faible hauteur de l'enveloppe (au maximum 20 mètres) permet de faire le cintrage et le soudage complet de la structure de l'appareil en atelier sur des vireurs et avec des procédés de soudages automatiques similaires à celui des colonnes. La structure peut être faite dans les mêmes ateliers, d'où une meilleure optimisation de la planification et des phases de construction. L'appareil se compose de : - une enveloppe à section circulaire, faite éventuellement de tôles envirolées - deux colonnes superposées ou une colonne et un pot séparateur superposés. - éventuellement des rails d'enfilage permettant glisser la colonne dans l'enveloppe. - une structure d'embase composée de profilés. - une toiture, éventuellement en plan inclinée soutenu par des raidisseurs des ceintures permettant le raidissage et le levage de l'ensemble. des contreventements internes démontables pour le transport. Selon un objet de l'invention, il est prévu un appareil de production d'un débit riche en dioxyde de carbone par distillation à une température sub- ambiante comprenant une première colonne de distillation, un élément adapté pour effectuer une séparation à une température sub-ambiante, l'élément étant disposé de sorte qu'il se trouve en dessous de la première colonne quand l'appareil est en fonctionnement, une enveloppe, entourant la colonne de distillation et l'élément, l'enveloppe étant substantiellement cylindrique et ayant un axe principal, un isolant disposé entre l'enveloppe et la colonne et une conduite pour soutirer le produit de la première colonne. For 002, the liquefaction temperature is above -57 ° C at the pressures used for distillation, unlike the cryogenic temperatures encountered on air or CO units that are below 170 ° C. It is conceivable on the production units of 002, to reduce the isolation distances by half with respect to temperatures at -196 ° C. In addition, because of the round shape of the envelope, the volume of insulation (traditionally perlite) decreases by about 30%. The low thermal expansion of the pipes allows, by short lyres, to weld the pipes on the envelope to the right of the crossings, which avoids stiffening to compensate for the lack of material. The low piping density of the CO2 production units as well as the low height of the casing (max. 20 meters) make it possible to bend and completely weld the structure of the machine in the workshop on turners and with automatic welding processes similar to that of the columns. The structure can be done in the same workshops, resulting in better optimization of planning and construction phases. The apparatus consists of: - an envelope with circular section, possibly made of corrugated sheets - two superposed columns or a stacked column and separator pot. possibly threading rails allowing the column to slide into the envelope. a base structure composed of profiles. - A roof, possibly in an inclined plane supported by stiffeners belts for stiffening and lifting of the whole. removable internal braces for transportation. According to one object of the invention, there is provided an apparatus for producing a flow rich in carbon dioxide by distillation at a sub-ambient temperature comprising a first distillation column, an element adapted to effect a separation at a temperature below -ambient, the element being arranged so that it is below the first column when the apparatus is in operation, an envelope, surrounding the distillation column and the element, the casing being substantially cylindrical and having a main axis, an insulator disposed between the casing and the column and a pipe for withdrawing the product from the first column.

Selon d'autres caractéristiques facultatives : - la première colonne de distillation a un diamètre substantiellement constant et l'élément est substantiellement cylindrique, ayant un diamètre substantiellement égal à celui de la première colonne de distillation. - la première colonne de distillation et l'élément sont reliés par une jupe cylindrique ayant un diamètre substantiellement égal à celui de la première colonne de distillation. - l'élément est une deuxième colonne de distillation ou un pot séparateur. - l'appareil comprend une conduite, à l'intérieur de l'enveloppe, pour envoyer un liquide du pot séparateur à la tête de la première colonne de distillation. - l'appareil comprend au moins une conduite, à l'intérieur de l'enveloppe, reliant la première colonne avec la deuxième colonne. - l'enveloppe est composée de tôles superposées, chacune ayant une longueur égale au périmètre de la section circulaire l'enveloppe. - le rapport entre le diamètre de l'enveloppe et le diamètre de la première colonne est inférieur à 1,5 et supérieur à 1,15. - l'appareil comprend une conduite pour alimenter le pot séparateur ou la deuxième colonne de distillation avec un débit contenant du dioxyde de 25 carbone. Selon un autre objet de l'invention, il est prévu un procédé de distillation d'un débit riche en dioxyde de carbone utilisant un appareil tel que décrit ci-dessus dans lequel le débit est refroidi à une température sub-ambiante puis séparé dans l'élément pour former un fluide qui est ensuite séparé par 30 distillation dans la première colonne, un produit riche en dioxyde de carbone étant soutiré de la première colonne. Un pot séparateur est un élément dans lequel s'effectue une séparation équivalente à un plateau théorique de distillation. According to other optional features: the first distillation column has a substantially constant diameter and the element is substantially cylindrical, having a diameter substantially equal to that of the first distillation column. the first distillation column and the element are connected by a cylindrical skirt having a diameter substantially equal to that of the first distillation column. the element is a second distillation column or a separator pot. the apparatus comprises a pipe, inside the casing, for sending a liquid from the separator pot to the head of the first distillation column. - The apparatus comprises at least one pipe, inside the casing, connecting the first column with the second column. - The envelope is composed of superimposed sheets, each having a length equal to the perimeter of the circular section envelope. the ratio between the diameter of the envelope and the diameter of the first column is less than 1.5 and greater than 1.15. the apparatus comprises a pipe for supplying the separator pot or the second distillation column with a flow rate containing carbon dioxide. According to another object of the invention, there is provided a process for distillation of a flow rich in carbon dioxide using an apparatus as described above in which the flow rate is cooled to a sub-ambient temperature and then separated into the atmosphere. element for forming a fluid which is then distilled off in the first column, a product rich in carbon dioxide being withdrawn from the first column. A separator pot is an element in which a separation is effected equivalent to a theoretical distillation plate.

L'invention sera décrite en plus de détail en se référant aux figures. La Figure 1 montre une vue d'extérieur d'un appareil selon l'invention, en position de fonctionnement. La Figure 2 montre une coupe verticale de l'appareil de la Figure 1. The invention will be described in more detail with reference to the figures. Figure 1 shows an outside view of an apparatus according to the invention, in the operating position. Figure 2 shows a vertical section of the apparatus of Figure 1.

Dans la Figure 1, on voit un appareil de séparation d'un fluide contenant du dioxyde de carbone, contenant au moins 40% vol de dioxyde de carbone, voire au moins 60% vol de dioxyde de carbone. Le fluide contient également du monoxyde de carbone, de l'oxygène, de l'azote, de l'hydrogène, du méthane, de l'argon ou une autre impureté légère. In Figure 1, there is shown a device for separating a fluid containing carbon dioxide, containing at least 40% vol carbon dioxide, or even at least 60% vol carbon dioxide. The fluid also contains carbon monoxide, oxygen, nitrogen, hydrogen, methane, argon or other light impurity.

L'appareil 1 est composé d'une enceinte isolée, constituée par des tôles superposées pour former une virole cylindrique formant une enveloppe 5. Chaque tôle a la longueur du périmètre de la virole, de sorte que la somme des largeurs des tôles est substantiellement égale à la hauteur de la virole et chaque tôle entoure tout l'intérieur de la virole. La virole est posée sur un support 3. Dans la Figure 1, on voit à l'intérieur des tôles de la virole 5 une colonne de distillation 11 et un autre élément 9, ici un séparateur de phases ou pot séparateur. Ces deux éléments sont espacés de la virole et l'espace est remplie de perlite 21 pour isoler l'ensemble. The apparatus 1 is composed of an insulated enclosure constituted by superimposed sheets to form a cylindrical shell forming an envelope 5. Each sheet has the length of the perimeter of the shell, so that the sum of the widths of the sheets is substantially equal. at the height of the shell and each sheet surrounds the entire interior of the shell. The shell is placed on a support 3. In Figure 1, we see inside the sheets of the shell 5 a distillation column 11 and another element 9, here a phase separator or separator pot. These two elements are spaced from the shell and the space is filled with perlite 21 to isolate the assembly.

La colonne 11 et le séparateur de phases 9 ont une virole commune 23 constituée par un cylindre métallique. La partie supérieure de la virole constitue la paroi de la colonne et la partie inférieure constitue la paroi du séparateur de phases. Le séparateur de phases 9 et la colonne 11 ont substantiellement le même diamètre et le même axe vertical. Column 11 and phase separator 9 have a common ferrule 23 constituted by a metal cylinder. The upper part of the ferrule constitutes the wall of the column and the lower part constitutes the wall of the phase separator. The phase separator 9 and the column 11 have substantially the same diameter and the same vertical axis.

Une partie entre la cuve de la colonne et la tête du séparateur de phases est vide, mis à part d'éventuelles conduites ou moyens d'instrumentation. La partie de la virole 23 entourant cette espace forme une jupe cylindrique. Des conduites 13, 15, 17, 19 assurent le transfert de fluides à l'intérieur de la virole 5. A part between the column vessel and the head of the phase separator is empty, apart from any pipes or instrumentation means. The part of the shell 23 surrounding this space forms a cylindrical skirt. Pipes 13, 15, 17, 19 ensure the transfer of fluids inside the shell 5.

Selon l'opération de l'appareil, un gaz d'alimentation riche en dioxyde de carbone sert à chauffer le liquide de cuve de la colonne et est ainsi partiellement condensé, éventuellement après une étape de refroidissement supplémentaire. Le fluide partiellement condensé est envoyé au séparateur de phases 9 où il se sépare pour former un gaz et un liquide. Le liquide est détendu dans une vanne puis envoyé par la conduite 15 en haute de la colonne 11. Le gaz de tête de la colonne enrichi en l'impureté légère sort par la conduite 13 et le produit liquide de la colonne est soutiré par la conduite... Depending on the operation of the apparatus, a carbon dioxide-rich feed gas serves to heat the column bottom liquid and is thus partially condensed, possibly after an additional cooling step. The partially condensed fluid is sent to the phase separator 9 where it separates to form a gas and a liquid. The liquid is expanded in a valve and then sent through the pipe 15 at the top of the column 11. The column head gas enriched in the light impurity exits through the pipe 13 and the liquid product of the column is drawn off by the pipe ...

Le séparateur de phases 9 peut être remplacé par une autre enceinte, par exemple une deuxième colonne de distillation dont le liquide de cuve est destiné à alimenter la tête de la première colonne de distillation 11. Le rapport entre le diamètre de l'enveloppe 5 et le diamètre de la première colonne 11 est inférieur à 1,5 et supérieur à 1,15. The phase separator 9 can be replaced by another enclosure, for example a second distillation column whose vessel liquid is intended to feed the head of the first distillation column 11. The ratio between the diameter of the envelope 5 and the diameter of the first column 11 is less than 1.5 and greater than 1.15.

L'élément 9 est destiné à effectuer une première séparation d'un débit contenant au moins 40% vol de dioxyde de carbone, un débit enrichi en dioxyde de carbone étant ensuite séparé dans la première colonne de distillation 11. The element 9 is intended to perform a first separation of a flow containing at least 40% vol of carbon dioxide, a flow enriched in carbon dioxide being then separated in the first distillation column 11.

Claims (10)

REVENDICATIONS1. Appareil de production d'un débit riche en dioxyde de carbone par distillation à une température sub-ambiante comprenant une première colonne de distillation (11), un élément (9) adapté pour effectuer une séparation à une température sub-ambiante, l'élément étant disposé de sorte qu'il se trouve en dessous de la première colonne quand l'appareil est en fonctionnement, une enveloppe (5), entourant la colonne de distillation et l'élément, l'enveloppe étant substantiellement cylindrique et ayant un axe principal, un isolant (21) disposé entre l'enveloppe et la colonne et une conduite pour soutirer le produit de la première colonne. REVENDICATIONS1. Apparatus for producing a carbon dioxide-rich feed by distillation at a sub-ambient temperature comprising a first distillation column (11), an element (9) adapted to effect separation at a sub-ambient temperature, the element being arranged so that it is below the first column when the apparatus is in operation, an envelope (5) surrounding the distillation column and the element, the envelope being substantially cylindrical and having a main axis an insulator (21) disposed between the casing and the column and a pipe for withdrawing the product from the first column. 2. Appareil selon la revendication 1 dans lequel la première colonne de distillation (11) a un diamètre substantiellement constant et l'élément (9) est substantiellement cylindrique, ayant un diamètre substantiellement égal à celui de la première colonne de distillation. An apparatus according to claim 1 wherein the first distillation column (11) has a substantially constant diameter and the element (9) is substantially cylindrical, having a diameter substantially equal to that of the first distillation column. 3. Appareil selon la revendication 2 dans lequel la première colonne de distillation (11) et l'élément (9) sont reliés par une jupe cylindrique (23) ayant 20 un diamètre substantiellement égal à celui de la première colonne de distillation. Apparatus according to claim 2 wherein the first distillation column (11) and the element (9) are connected by a cylindrical skirt (23) having a diameter substantially equal to that of the first distillation column. 4. Appareil selon l'une des revendications principales dans lequel l'élément (9) est une deuxième colonne de distillation ou un pot séparateur. 25 4. Apparatus according to one of the main claims wherein the element (9) is a second distillation column or a separator pot. 25 5. Appareil selon la revendication 4 comprenant une conduite, à l'intérieur de l'enveloppe, pour envoyer un liquide du pot séparateur (9) à la tête de la première colonne de distillation (11). 30 5. Apparatus according to claim 4 comprising a pipe, inside the casing, for sending a liquid from the separator pot (9) to the head of the first distillation column (11). 30 6. Appareil selon la revendication 4 comprenant au moins une conduite, à l'intérieur de l'enveloppe, reliant la première colonne avec la deuxième colonne. 6. Apparatus according to claim 4 comprising at least one pipe, inside the casing, connecting the first column with the second column. 7. Appareil selon l'une des revendications précédentes dans lequel l'enveloppe (5) est composée de tôles superposées, chacune ayant une longueur égale au périmètre de la section circulaire l'enveloppe. 7. Apparatus according to one of the preceding claims wherein the envelope (5) is composed of superimposed sheets, each having a length equal to the perimeter of the circular section envelope. 8. Appareil selon l'une des revendications précédentes dans lequel le rapport entre le diamètre de l'enveloppe (5) et le diamètre de la première colonne (11) est inférieur à 1,5 et supérieur à 1,15. 8. Apparatus according to one of the preceding claims wherein the ratio between the diameter of the casing (5) and the diameter of the first column (11) is less than 1.5 and greater than 1.15. 9. Procédé de distillation d'un débit riche en dioxyde de carbone utilisant un appareil tel que décrit dans une des revendications 1 à 8 dans lequel le débit est refroidi à une température sub-ambiante puis séparé dans l'élément (9) pour former un fluide qui est ensuite séparé par distillation dans la première colonne (11), un produit riche en dioxyde de carbone étant soutiré de la première colonne. 9. Process for distillation of a carbon dioxide rich flow rate using an apparatus as described in one of claims 1 to 8 wherein the flow rate is cooled to a sub-ambient temperature and then separated in the element (9) to form a fluid which is then distilled off in the first column (11), a product rich in carbon dioxide being withdrawn from the first column. 10. Procédé selon la revendication 9 dans lequel le débit contient 40% vol de dioxyde de carbone, voire au moins 60% vol de dioxyde de carbone et également du monoxyde de carbone, de l'oxygène, de l'azote, de l'hydrogène, du méthane, de l'argon ou une autre impureté légère.20 10. The method of claim 9 wherein the flow contains 40% vol carbon dioxide, or at least 60% vol carbon dioxide and also carbon monoxide, oxygen, nitrogen, carbon dioxide. hydrogen, methane, argon or other light impurity.
FR1157448A 2011-08-23 2011-08-23 Apparatus for production of carbon dioxide-enriched flow of fluid by distillation at sub-ambient temperature, has envelope surrounding fractionating column and separating chamber, and perlite placed between envelope and column Withdrawn FR2979422A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3018904A1 (en) * 2014-03-20 2015-09-25 Air Liquide APPARATUS FOR SEPARATING GAS BY DISTILLATION OR WASHING AT A SUBAMBIAN TEMPERATURE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750413A (en) * 1968-10-15 1973-08-07 Hydrocarbon Research Inc Cryogenic apparatus assembly method
FR2312001A1 (en) * 1975-05-20 1976-12-17 Snam Progetti Sepn. of carbon dioxide from natural gas - using double distillation with second column at lower pressure
EP1319912A1 (en) * 2001-12-14 2003-06-18 Linde Aktiengesellschaft Device and process for obtaining gaseous oxygen under high pressure
EP1473531A2 (en) * 2003-04-30 2004-11-03 Linde Aktiengesellschaft Column system and method for manufacturing the same
US20100326134A1 (en) * 2009-02-17 2010-12-30 Ortloff Engineers Ltd. Hydrocarbon Gas Processing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750413A (en) * 1968-10-15 1973-08-07 Hydrocarbon Research Inc Cryogenic apparatus assembly method
FR2312001A1 (en) * 1975-05-20 1976-12-17 Snam Progetti Sepn. of carbon dioxide from natural gas - using double distillation with second column at lower pressure
EP1319912A1 (en) * 2001-12-14 2003-06-18 Linde Aktiengesellschaft Device and process for obtaining gaseous oxygen under high pressure
EP1473531A2 (en) * 2003-04-30 2004-11-03 Linde Aktiengesellschaft Column system and method for manufacturing the same
US20100326134A1 (en) * 2009-02-17 2010-12-30 Ortloff Engineers Ltd. Hydrocarbon Gas Processing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HAUT R C ET AL: "DEVELOPMENT AND APPLICATION OF THE CONTROLLED-FREEZE-ZONE PROCESS", SPE PRODUCTION ENGINEERING, THE SOCIETY, RICHARDSON, TX, GB, vol. 4, no. 3, 1 August 1989 (1989-08-01), pages 265 - 271, XP009044764, ISSN: 0885-9221 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3018904A1 (en) * 2014-03-20 2015-09-25 Air Liquide APPARATUS FOR SEPARATING GAS BY DISTILLATION OR WASHING AT A SUBAMBIAN TEMPERATURE

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