EP3841345A1 - Luftzerlegungsanlage, verfahren zur tieftemperaturzerlegung von luft mittels luftzerlegungsanlage und verfahren zur erstellung einer luftzerlegungsanlage - Google Patents
Luftzerlegungsanlage, verfahren zur tieftemperaturzerlegung von luft mittels luftzerlegungsanlage und verfahren zur erstellung einer luftzerlegungsanlageInfo
- Publication number
- EP3841345A1 EP3841345A1 EP19766170.5A EP19766170A EP3841345A1 EP 3841345 A1 EP3841345 A1 EP 3841345A1 EP 19766170 A EP19766170 A EP 19766170A EP 3841345 A1 EP3841345 A1 EP 3841345A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compartment
- units
- column
- separation
- pressure 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- Withdrawn
Links
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
- F25J3/04—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 for air
- F25J3/04406—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 for air using a dual pressure main column system
- F25J3/04412—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 for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
-
- 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
- F25J3/04—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 for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
-
- 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
- F25J3/04—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 for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
- F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
- F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
-
- 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
- F25J3/04—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 for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04721—Producing pure argon, e.g. recovered from a crude argon column
- F25J3/04727—Producing pure argon, e.g. recovered from a crude argon column using an auxiliary pure argon column for nitrogen rejection
-
- 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
- F25J3/04—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 for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
- F25J3/04878—Side by side arrangement of multiple vessels in a main column system, wherein the vessels are normally mounted one upon the other or forming different sections of the same column
-
- 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
- F25J3/04—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 for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/0489—Modularity and arrangement of parts of the air fractionation unit, in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
-
- 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
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/02—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams using a pump in general or hydrostatic pressure increase
Definitions
- the present invention relates to an air separation plant, a method for the low-temperature separation of air by means of a corresponding air separation plant and a method for the construction of a corresponding air separation plant.
- Air separation plants have rectification column systems, which as
- Two-column systems in particular as classic Linde double-column systems, but can also be designed as three- or multi-column systems.
- Two-column systems in particular as classic Linde double-column systems, but can also be designed as three- or multi-column systems.
- Rectification columns for the production of nitrogen and / or oxygen in the liquid and / or gaseous state ie the rectification columns for nitrogen-oxygen separation, rectification columns for the production of further air components, in particular argon, can be provided.
- the rectification columns of the rectification column systems mentioned are operated at different pressure levels.
- Known double-column systems have a so-called high-pressure column (also referred to as a pressure column, medium-pressure column or lower column) and a so-called low-pressure column (also referred to as an upper column).
- the high-pressure column is typically operated at a pressure level of 4 to 7 bar, in particular approximately 5.3 bar.
- the low pressure column is operated at a pressure level of typically 1 to 2 bar, in particular approximately 1.4 bar. In certain cases, higher pressure levels can also be used in the low pressure column.
- the pressures specified here and below are absolute pressures at the top of the specified columns.
- a liquid enriched with oxygen and nitrogen-depleted is formed in a lower region of the high-pressure column and drawn off from the high-pressure column.
- This liquid which in particular also contains argon, is at least partly fed into the low-pressure column and further separated there.
- Feed into the low-pressure column are at least partially evaporated, with evaporated and non-evaporated portions at different positions in the
- the present invention is based on a method or a corresponding system in which a high and a low pressure column is used.
- the low-pressure column is not formed in one piece, but is divided into a first section and a second section, the first and the second section at different positions
- Air separation plant and are arranged at different heights and
- first and the second section of the low pressure column are operated at a common pressure level within the scope of the present invention.
- the used in the context of the present invention divided into two sections
- Low-pressure column differs from also known arrangements in which, in addition to the high-pressure and low-pressure columns, a further column for separating nitrogen and oxygen is provided, which, however, is operated at a pressure level which lies between the pressure levels at which the high-pressure column and the Low pressure column operated.
- Air separation plants with raw and pure argon columns can be used to obtain argon.
- An example is illustrated by Häring (see above) in Figure 2.3A and described from page 26 in the section “Rectification in the Low-pressure, Crude and Pure Argon Column” and from page 29 in the section “Cryogenic Production of Pure Argon”.
- argon accumulates at a certain height in the low-pressure column in corresponding plants. At this or at another convenient point, possibly below the argon maximum, the
- Low pressure column of argon-enriched gas with an argon concentration of typically 5 to 15 mole percent are withdrawn and transferred to the crude argon column.
- a corresponding gas typically contains about 0.05 to 100 ppm nitrogen and otherwise essentially oxygen. It should be expressly emphasized that the values given for the gas drawn off from the low pressure column are only typical example values.
- the crude argon column essentially serves to separate the oxygen from the gas drawn off from the low-pressure column.
- the separated oxygen in the crude argon column or a corresponding oxygen-rich fluid can be returned to the low-pressure column in liquid form.
- the oxygen or the oxygen-rich fluid is typically fed into the low-pressure column a plurality of theoretical or practical trays below the feed point for the liquid drawn off from the high-pressure column, enriched with oxygen and depleted with nitrogen and possibly at least partially evaporated.
- Crude argon column remaining gaseous fraction which essentially contains argon and nitrogen, is further separated in the pure argon column to obtain pure argon.
- the crude and the pure argon column have top condensers, which can be cooled in particular with a portion of the liquid which has been drawn off from the high-pressure column and enriched with oxygen and nitrogen and which partially evaporates during this cooling. Other fluids can also be used for cooling.
- a pure argon column can also be dispensed with in corresponding systems, typically ensuring that the
- Nitrogen content at the argon transition is below 1 ppm. However, this is not a mandatory requirement. In this case, argon of the same quality as from a conventional pure argon column is typically slightly further below from the crude argon column or a comparable column than that conventionally into the
- the present invention can be used with such an arrangement without a pure argon column. Since the raw argon column or a comparable column in such an arrangement is already used for the production of pure argon and not for
- Raw argon production is used, is also referred to below as an "argon production column".
- An argon recovery column can be a conventional one Raw argon column (which is used with or without pure argon column) or a corresponding raw argon column modified for obtaining pure argon.
- Air separation plants increase significantly.
- the present invention proposes an air separation plant, a method for the low-temperature separation of air by means of a corresponding air separation plant and a method for producing a corresponding one
- Liquids and gases can, in the language used here, be rich or poor in one or more components, “rich” for a content of at least 50%, 75%, 90%, 95%, 99%, 99.5%, 99, 9% or 99.99% and “poor” for a maximum of 50%, 25%, 10%, 5%, 1%, 0.1% or 0.01% on a mole, weight or volume basis ,
- the term “predominantly” can correspond to the definition of "rich”.
- Liquids and gases can also be enriched or depleted in one or more components, these terms refer to a content in a starting liquid or gas from which the liquid or gas was obtained.
- the liquid or gas is "enriched” if this or this content is at least 1.1 times, 1.5 times, 2 times, 5 times, 10 times 100 times or 1,000 times the content, and " depleted "if this or this contains at most 0.9 times, 0.5 times, 0.1 times, 0.01 times or 0.001 times the content of a corresponding component, based on the starting liquid or the starting gas. If, for example, “oxygen”, “nitrogen” or “argon” is mentioned here, this should also be understood to mean a liquid or a gas which is rich in oxygen or nitrogen, but does not necessarily have to consist exclusively of it.
- pressure level and "temperature level” to characterize pressures and temperatures, which is intended to express that corresponding pressures and temperatures in a corresponding system do not have to be used in the form of exact pressure or temperature values to realize the inventive concept.
- pressures and temperatures are typically in certain ranges, for example ⁇ 1%, 5% or 10% around an average.
- Corresponding pressure levels and temperature levels can lie in disjoint areas or in areas that overlap one another.
- pressure levels include, for example, unavoidable or expected pressure drops. The same applies to temperature levels. For those given here in cash
- Pressure levels are absolute pressures.
- the high-pressure column and the low-pressure column (or, in the context of the present invention, its first section) of an air separation plant are in heat-exchanging connection via a so-called “main condenser”.
- Main capacitor can in particular in a lower (sump) area of the
- Low pressure column (or here from its first section) can be arranged.
- it is a so-called internal main condenser and the evaporation space of the main condenser is also the interior of the
- the main condenser can basically be arranged outside the interior of the high-pressure column, that is to say a so-called external main condenser.
- a rectification column system of an air separation plant is arranged in one or more cold boxes.
- a "cold box” is understood here to mean an insulating sheath that covers a heat-insulated interior except for bushings
- Plant parts to be insulated are arranged in the interior, for example one or more
- Rectification columns and / or heat exchangers Rectification columns and / or heat exchangers.
- the insulating effect can be brought about by appropriate design of the outer walls and / or by filling the space between the system parts and outer walls with an insulating material.
- a powdery material such as pearlite is preferably used.
- the rectification column system of a plant for the low-temperature separation of air as well as the main heat exchanger and other cold plant parts such as pipes, valves and instrumentation are typically enclosed by one or more cold boxes.
- the external dimensions of the cold box usually determine the transport dimensions.
- a "main heat exchanger" of an air separation plant is used to cool the feed air in indirect heat exchange with return flows from the
- Rekt Ensklalensystem can consist of a single or several in parallel and / or serially connected heat exchanger sections can be formed, for example from one or more plate heat exchanger blocks.
- Separate heat exchangers which are used specifically for the evaporation or pseudo-evaporation of a single liquid or supercritical fluid, without heating and / or evaporation of another fluid, are not part of the main heat exchanger.
- a "subcooler” or “subcooling counterflow” is, in the parlance used here, a heat exchanger through which gaseous and liquid material flows in an air separation plant cause heat exchange
- the axes of the two parts of the apparatus do not have to lie exactly vertically one above the other, but can also be offset from one another, in particular if one of the two apparatus parts, for example a rectification column or a column part with a smaller diameter, is to have the same distance from the sheet metal jacket of a cold box as another with a larger one Diameter.
- the present invention is based on the knowledge that an arrangement of a distillation column system with a high pressure column, a foot section of a low pressure column, a head section of the low pressure column and a
- Argon recovery column in the specific manner explained below is advantageous, the invention in particular comprising that axially parallel
- running sections of lines that connect the above-mentioned separation units and other apparatuses are at least predominantly housed in a separate, prefabricated compartment.
- the compartment that receives the lines or the explained sections of these lines can be prefabricated and, for example, only with on the respective connection sides
- Transport covers are provided. Due to comparatively less
- this compartment can already be closed with a sheet metal jacket and, if necessary, cold-insulated.
- An air separation plant can be created by first setting up the separate compartment at the installation site of the air separation plant and then the further components after removing the
- Transport covers are connected to the compartment.
- the compartment can already be fully equipped in the factory with the respective lines or the mentioned line sections, of which only connection pieces are led out of the compartment.
- Pipe sections in a separate compartment can be avoided with the appropriate piping work on site with the appropriate welding work, which may not be unproblematic in the field.
- the present invention allows any prefabrication of the compartment and further units of a corresponding air separation plant and, if appropriate, the arrangement in cold boxes or the connection to other structural units, the degree of prefabrication depending in particular on the
- a “compartment” denotes a separately transportable structural unit, in which at least lines or line sections and possibly further components are fixed in place.
- Such a compartment can be closed on the outside with metal sheets or can be provided with appropriate transport covers only for transport purposes.
- the compartment can also include, for example, other components
- Quantity measuring devices can be provided. Analysis and sampling points can also be moved to a corresponding compartment.
- a structural unit is particularly "separately transportable" if it is independent
- the structural elements establish a fixed structural relationship between the components contained, for example, lines to one another.
- the components are arranged in particular within a corresponding support structure and, while they remain in this fixed structural relationship to one another, can be connected to further components.
- the argon recovery column can be, in particular, a crude argon column or a correspondingly modified crude argon column with pure argon recovery, in the latter case in particular the two-part low-pressure column or its head section being adapted accordingly so that it can be used to provide a fluid that has a sufficiently low nitrogen content has, so that a pure argon column can be dispensed with.
- the separating units are at least partly by means of lines with one another and / or at least partly by means of lines with one or connected to several other apparatuses, which are explained below using examples.
- the separation units each have longitudinal axes which run in the direction of a maximum extension of the separation units.
- the longitudinal axes can coincide with the central axes of the separation units; appropriate
- separation units can also be constructed asymmetrically.
- the separating units are arranged in the context of the present invention in such a way that, as is customary in the art, the longitudinal axes are parallel to one another. However, the separation units can be arranged at different heights in the sense of the above explanations.
- the high-pressure column and the foot section in particular are in two parts
- the high pressure column typically has a smaller diameter than the low pressure column, no accommodation is typically provided in a common column jacket; the column jacket of the high-pressure column is attached to the lower side of the column jacket of the foot section of the low-pressure column.
- the longitudinal axes of the separation units are arranged in four quadrants such that in a first of the quadrants at least the major part of the high-pressure column and the foot section of the two-part low-pressure column are one above the other, in a second of the quadrants at least the major part of the head section of the low-pressure column, in a third the quadrant, at least the majority of the argon recovery column and the fourth are arranged in a fourth of the four quadrants.
- a "projection onto the floor plan level" corresponds to a plan view along the longitudinal axes mentioned.
- quadrants in a corresponding plane are regions separated from one another by imaginary lines intersecting perpendicularly in the plane. These do not have to be in the form of structurally separate departments.
- the respective separation units can also protrude from their assigned quadrant or occupy only part of a corresponding quadrant. This is expressed in the context of this description by the fact that "at least the major part" of the respectively specified elements is arranged in a corresponding quadrant. This at least predominant part comprises in particular more than 75%, 80% or 90% of the respective base area.
- the first to fourth quadrants can be arranged in the plan view, in particular clockwise around a center point.
- Separation units are arranged, lie in three adjacent quarters of the floor plan and the compartment can be arranged in the remaining quarter.
- the compartment and the separating units can be arranged in the projection onto the plan level within a rectangle with four side lines, which includes a partial area of each of the quadrants, the partial area of the first and second quadrants being connected to a first, the partial area of the second and third quadrants a second, the partial area of the third and fourth quadrant abut a third and the partial area of the fourth and first quadrant on a fourth of the side lines.
- the rectangle can in particular also be square.
- Separation units are arranged in their respective quadrants in an L-shape, the compartments being arranged at an inner angle of the L.
- the compartment and the separating units can be surrounded with a common outer shell, the projection of which on the floor plan level is limited at least in one section by the rectangle with the four side lines.
- the separation units are either arranged together without the compartment in a cold box, which in the projection onto the plan level has a recess in the fourth quadrant, in which the compartment is arranged in the projection onto the plan level.
- the compartment is designed in one or as a separate cold box.
- the separation units with the compartment are arranged together in a cold box, which is projected onto the
- Floor plan level has a rectangular cross section, the compartment in this alternative embodiment being arranged in the projection onto the floor plan level in a corner of the cold box.
- the compartment can also have a rectangular cross section when projected onto the plan level and can rest on the third and fourth side lines. Depending on the connection requirements, the corresponding side surfaces can be opened or closed.
- a main heat exchanger can be provided as the one or one of the further apparatuses, which is connected to the separation units by means of the lines mentioned.
- the main heat exchanger can in particular be arranged on a separate cold box, which is arranged in the cross-sectional view perpendicular to the longitudinal axes of the separation units on the fourth outer line mentioned several times.
- a subcooling counterflow can also be provided as the one or the further apparatuses, the subcooling counterflow being arranged inside or outside the compartment in the fourth quadrant. The same applies to a further (fifth) separation unit. If a separate pure argon column is provided, this is a fifth separation unit.
- a separation unit set up to enrich or obtain a krypton / xenon or helium / neon mixture can also be provided as the fifth separation unit.
- the fifth separation unit can be arranged inside or outside the compartment in the fourth quadrant.
- the present invention also extends to an air separation plant in which the compartment has a size of less than six meters, in particular in a first direction of extension, and an extension of at least a factor of 5 in a second direction perpendicular to it.
- the direction of extension is in particular parallel to the line sections which run parallel to the axes of the separating units. That way
- the compartment is prefabricated and transported.
- the maximum size can in particular also be less than 4.8 meters or less than 4.2 meters, so that normal transport dimensions for road transport are observed.
- the head section of the low pressure column has in particular a smaller cross section than the foot section of the low pressure column.
- a transfer pump or a plurality of arranged and / or redundantly provided transfer pumps can be provided.
- a first packing area with a first packing density can be formed at the foot section of the low pressure column, and a second packing area with a second packing density can be formed in the argon recovery column, wherein the first packing density is less than 1,000 square meters per cubic meter and the second packing density is more than 750 square meters per cubic meter and the second packing density is more than 250 square meters per cubic meter greater than the first packing density.
- the transport dimensions can be maintained or corresponding separation units can be accommodated in a common cold box.
- the present invention also extends to a method for
- Air separation plant is used, as previously explained in detail. Regarding features and advantages of a corresponding method, refer to the above
- the same also applies to a method for creating an air separation plant, as proposed according to the invention.
- This includes providing four separation units in the form of a high-pressure column, a foot section, a two-part low-pressure column, a head section of the two-part low-pressure column and a one-part argon recovery column, the separating units being at least partly connected to one another and / or at least partly using lines with one or can be connected to several devices.
- the separation units each have longitudinal axes that are in the direction of a
- the maximum extent of the separation units extends, the separation units being arranged in such a way that their longitudinal axes are parallel to one another. Furthermore, the lines at least partially have line sections that are parallel to the
- Air separation plant that at least the majority of the line sections of the lines running parallel to the longitudinal axes of the separation units, in particular in advance, are arranged in a compartment, and that the compartment and the separation units are projected onto a floor plan that is perpendicular to the longitudinal axes of the separation units, be arranged in four quadrants such that in a first of the quadrants at least the
- the separating units are either arranged without the compartment in a cold box, which has a recess in the fourth quadrant when projected onto the floor plan, in which the projection into the floor plane
- Compartment is arranged, or the separation units are with the
- Floor plan level has the rectangular cross section and in a corner of which the compartment is arranged in the projection onto the floor plan level
- the separate compartment with the at least predominant part of the line sections of the lines running parallel to the longitudinal axes of the separation units can first be provided in a prefabricated form and then the separation units can be provided.
- the compartment can be converted with a cold box after it has been made available or can be connected to such a cold box.
- Figure 1 illustrates an air separation plant according to an embodiment of the present invention in a schematic view.
- FIG. 2 illustrates in connection with the description of a
- Figure 3 illustrates an air separation plant according to an embodiment of the present invention in plan view.
- FIG. 1 shows an air separation plant according to an embodiment of the present invention in a schematic representation.
- the air separation plant is designated 100 in total.
- the spatial arrangement of the in FIG. 1 shows an air separation plant according to an embodiment of the present invention in a schematic representation.
- the air separation plant is designated 100 in total.
- the spatial arrangement of the in FIG. 1 shows an air separation plant according to an embodiment of the present invention in a schematic representation.
- the air separation plant is designated 100 in total.
- the air separation plant 100 has four separation units in the form of a high-pressure column 1, a foot section 2 of a two-part design
- Low pressure columns are connected to each other on the jacket side.
- the high-pressure column 1 the foot section 2 of the two-part low-pressure column, the head section 3 of the two-part low-pressure column and the one-part
- Argon recovery columns each have longitudinal axes A, as illustrated here only using the example of the high-pressure column 1 and the foot section 2 of the two-part low-pressure column.
- Feed air stream EL fed which was compressed in a warm part of the air separation plant 100, not shown, and cooled in a main heat exchanger.
- liquid air LA can also in the
- High pressure column 1 can be fed.
- the high-pressure column and the foot section of the low-pressure column 2 are connected to one another in a heat-exchanging manner via a main condenser, which is not specifically designated.
- the foot section 2 of the low pressure column and the head section 3 of the Low pressure columns are fluidly coupled to one another, whereby in particular
- Bottom liquid can be returned from the head section 3 of the low pressure column by means of a pump (not specifically designated) in an upper region of the foot section 2 of the low pressure column.
- Bottom liquid can be drawn off from the sump of the high-pressure column 1, passed through a supercooling counterflow 7 and then fed into an evaporation chamber of a top condenser 41 of an argon recovery column 4.
- Evaporated and non-evaporated portions of the corresponding oxygen-enriched fluid can be fed into the head section 3 of the low-pressure column in the form of appropriate material flows.
- a material stream can be drawn off from an upper region of the foot section 2 of the low-pressure column and fed into the argon extraction column 4.
- the argon recovery column 4 can be enriched with argon and preferably largely with nitrogen
- depleted fluid can be fed.
- the depleted fluid can be fed.
- the depleted fluid can be fed.
- Air separation plant 100 can therefore be dispensed with a pure argon column.
- argon extraction column 4 In an upper area of the argon extraction column 4 can in this way
- Liquid argon be withdrawn in sufficient purity. From the head of the
- Pure argon column releases fluid to the atmosphere.
- the present invention is also suitable for other system configurations, in particular those with classic raw and pure argon columns.
- GOXIC gaseous pressurized oxygen
- UN2 impure nitrogen
- LPGAN low pressure nitrogen
- LIN liquid nitrogen
- LOX liquid oxygen
- LAR liquid argon
- the separating units 1 to 4 can be connected to one another and to others by means of lines, which are summarized here by way of example at two points with 5
- Apparatus such as the supercooling counterflow 7 and a main heat exchanger (not shown) can be connected. These lines have vertical, that is to say parallel to respective longitudinal axes A of the separation units, line sections of considerable length. These can and will be within the scope of the present Invention provided in a compartment C illustrated here in dashed lines. Corresponding cables can be prefabricated in the separate compartment C and transported in this way to the construction site. In this way, as explained several times, subsequent welding work can largely be dispensed with.
- FIG. 2 illustrates in connection with the description of a
- FIG. 2 here is a plane (in the paper plane) by means of a first dividing line T1 illustrated by dash-dotted lines and also one
- dash-dot line illustrated second dividing line T2 into a first quadrant Q1, a second quadrant Q2, a third quadrant Q3 and a fourth
- Quadrants Q4 divided.
- a dotted rectangle 10 with a first side line L1, a second side line L2, a third side line L3 and a fourth side line L4 is also illustrated here.
- the rectangle 10 closes one
- the first to fourth quadrants Q1-Q4 are arranged clockwise around a center point Z in the plan view.
- FIG. 3 An air separation plant according to an embodiment of the invention is illustrated in FIG. 3 in a schematic plan view or in a projection onto a floor plan level that corresponds to the paper level.
- the separation units 1 to 4 with their longitudinal axes A not shown separately here, are perpendicular to the plane of the paper.
- Compartment C is arranged, and the compartment C and the separation units 1 to 4 are arranged in the four quadrants Q1-Q4 in projection on the plan plane, which is perpendicular to the longitudinal axes A of the separation units 1 to 4, in such a way that in the first quadrant Q1 at least the majority of the high-pressure column 1 and the foot section 2 of the two-part low-pressure column one above the other, in the second quadrant Q2 at least the majority of the head section 3 of the low-pressure column, in the third quadrant Q3 at least the majority of the argon recovery column 4 and in the fourth quadrant Q4 the compartment C are arranged. As shown here by means of a reinforced line 20
- Quadrant Q4 has a recess in which the projection onto the
- Compartment C is arranged on the floor plan. Compartment C is rectangular when projected onto the floor plan and lies on the third and fourth side lines L3, L4. It is housed in another cold box, not specifically identified. A main heat exchanger 6 is arranged in a separate cold box, which is arranged in the projection onto the plan level on the fourth outer line L4.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18020399.4A EP3614083A1 (de) | 2018-08-22 | 2018-08-22 | Luftzerlegungsanlage, verfahren zur tieftemperaturzerlegung von luft mittels luftzerlegungsanlage und verfahren zur erstellung einer luftzerlegungsanlage |
PCT/EP2019/025275 WO2020038606A1 (de) | 2018-08-22 | 2019-08-20 | Luftzerlegungsanlage, verfahren zur tieftemperaturzerlegung von luft mittels luftzerlegungsanlage und verfahren zur erstellung einer luftzerlegungsanlage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3841345A1 true EP3841345A1 (de) | 2021-06-30 |
Family
ID=63363818
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18020399.4A Withdrawn EP3614083A1 (de) | 2018-08-22 | 2018-08-22 | Luftzerlegungsanlage, verfahren zur tieftemperaturzerlegung von luft mittels luftzerlegungsanlage und verfahren zur erstellung einer luftzerlegungsanlage |
EP19766170.5A Withdrawn EP3841345A1 (de) | 2018-08-22 | 2019-08-20 | Luftzerlegungsanlage, verfahren zur tieftemperaturzerlegung von luft mittels luftzerlegungsanlage und verfahren zur erstellung einer luftzerlegungsanlage |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18020399.4A Withdrawn EP3614083A1 (de) | 2018-08-22 | 2018-08-22 | Luftzerlegungsanlage, verfahren zur tieftemperaturzerlegung von luft mittels luftzerlegungsanlage und verfahren zur erstellung einer luftzerlegungsanlage |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP3614083A1 (de) |
CN (1) | CN112469952B (de) |
WO (1) | WO2020038606A1 (de) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1751045A1 (de) * | 1967-03-28 | 1970-10-29 | Mc Donnell Douglas Corp | Verfahren und Vorrichtung zum Zerlegen von Gasgemischen in ihre Komponenten |
FR2774752B1 (fr) * | 1998-02-06 | 2000-06-16 | Air Liquide | Installation de distillation d'air et boite froide correspondante |
US5921109A (en) * | 1998-10-21 | 1999-07-13 | Praxair Technology, Inc. | Method for operating a cryogenic rectification column |
DE10040391A1 (de) * | 2000-08-18 | 2002-02-28 | Linde Ag | Tieftemperaturluftzerlegungsanlage |
JP2004251569A (ja) * | 2003-02-21 | 2004-09-09 | Hitachi Ltd | 深冷空気分離装置 |
DE10342788A1 (de) * | 2003-09-15 | 2005-04-07 | Linde Ag | Coldbox |
DE102011015233A1 (de) * | 2011-03-25 | 2012-09-27 | Linde Ag | Vorrichtung zur Tieftemperaturzerlegung von Luft |
DE102012008415A1 (de) * | 2012-04-27 | 2013-10-31 | Linde Aktiengesellschaft | Transportables Paket mit einer Coldbox, Tieftemperatur-Luftzerlegungsanlage und Verfahren zum Herstellen einer Tieftemperatur-Luftzerlegungsanlage |
CN202853259U (zh) * | 2012-09-06 | 2013-04-03 | 浙江海天气体有限公司 | 一种氩气的净化提纯设备 |
EP2965029B1 (de) * | 2013-03-06 | 2017-07-12 | Linde Aktiengesellschaft | Luftzerlegungsanlage, verfahren zur gewinnung eines argon enthaltenden produkts und verfahren zur erstellung einer luftzerlegungsanlage |
EP2824407A1 (de) * | 2013-07-11 | 2015-01-14 | Linde Aktiengesellschaft | Verfahren zur Erzeugung zumindest eines Luftprodukts, Luftzerlegungsanlage, Verfahren und Vorrichtung zur Erzeugung elektrischer Energie |
EP3067648A1 (de) * | 2015-03-13 | 2016-09-14 | Linde Aktiengesellschaft | Destillationssäulen-system und verfahren zur erzeugung von sauerstoff durch tieftemperaturzerlegung von luft |
EP3179186A1 (de) * | 2015-12-07 | 2017-06-14 | Linde Aktiengesellschaft | Verfahren zur gewinnung eines flüssigen und eines gasförmigen, sauerstoffreichen luftprodukts in einer luftzerlegungsanlage und luftzerlegungsanlage |
-
2018
- 2018-08-22 EP EP18020399.4A patent/EP3614083A1/de not_active Withdrawn
-
2019
- 2019-08-20 EP EP19766170.5A patent/EP3841345A1/de not_active Withdrawn
- 2019-08-20 CN CN201980048340.2A patent/CN112469952B/zh active Active
- 2019-08-20 WO PCT/EP2019/025275 patent/WO2020038606A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
CN112469952A (zh) | 2021-03-09 |
WO2020038606A1 (de) | 2020-02-27 |
EP3614083A1 (de) | 2020-02-26 |
CN112469952B (zh) | 2022-06-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2965029B1 (de) | Luftzerlegungsanlage, verfahren zur gewinnung eines argon enthaltenden produkts und verfahren zur erstellung einer luftzerlegungsanlage | |
EP3133361B1 (de) | Destillationssäulen-system und anlage zur erzeugung von sauerstoff durch tieftemperaturzerlegung von luft | |
EP2026024A1 (de) | Verfahren und Vorrichtung zur Gewinnung von Argon durch Tieftemperaturzerlegung von Luft | |
EP3870915A1 (de) | Verfahren und anlage zur tieftemperaturzerlegung von luft | |
WO2020038608A1 (de) | Luftzerlegungsanlage, verfahren zur tieftemperaturzerlegung von luft und verfahren zur erstellung einer luftzerlegungsanlage | |
DE102007035619A1 (de) | Verfahren und Vorrichtung zur Gewinnung von Argon durch Tieftemperaturzerlegung von Luft | |
WO2016146246A1 (de) | Anlage zur erzeugung von sauerstoff durch tieftemperaturzerlegung von luft | |
EP2986924B1 (de) | Nachrüstbare vorrichtung zur tieftemperaturzerlegung von luft, nachrüstanlage und verfahren zum nachrüsten einer tieftemperatur-luftzerlegungsanlage | |
EP1319913A1 (de) | Vorrichtung und Verfahren zur Erzeugung gasförmigen Sauerstoffs unter erhöhtem Druck | |
DE102016002115A1 (de) | Destillationssäulen-System und Verfahren zur Erzeugung von Sauerstoff durch Tieftemperaturzerlegung von Luft | |
WO2021078405A1 (de) | Verfahren und anlage zur tieftemperaturzerlegung von luft | |
WO2020038606A1 (de) | Luftzerlegungsanlage, verfahren zur tieftemperaturzerlegung von luft mittels luftzerlegungsanlage und verfahren zur erstellung einer luftzerlegungsanlage | |
EP3067650B1 (de) | Anlage und verfahren zur erzeugung von sauerstoff durch tieftemperaturzerlegung von luft | |
DE102012006479A1 (de) | Transportables Paket mit einer Coldbox und Verfahren zum Herstellen einer Tieftemperatur-Luftzerlegungsanlage | |
EP2645031A1 (de) | Trennsäule für eine Tieftemperatur-Luftzerlegungsanlage, Tieftemperatur-Luftzerlegungsanlage und Verfahren zur Tieftemperaturzerlegung von Luft | |
EP3067648A1 (de) | Destillationssäulen-system und verfahren zur erzeugung von sauerstoff durch tieftemperaturzerlegung von luft | |
WO2020187449A1 (de) | Verfahren und anlage zur tieftemperaturzerlegung von luft | |
EP2831524A2 (de) | Transportables paket mit einer coldbox und verfahren zum herstellen einer tieftemperatur-luftzerlegungsanlage | |
EP2865978A1 (de) | Verfahren zur Tieftemperaturzerlegung von Luft und Tieftemperatur-Luftzerlegungsanlage | |
WO2023030682A2 (de) | Anlage und verfahren zur tieftemperaturzerlegung von luft | |
WO2023001400A1 (de) | Pumpenmodul für eine luftzerlegungsanlage, luftzerlegungsanlage und verfahren zum aufbau | |
EP3614084A1 (de) | Verfahren und anlage zur tieftemperaturzerlegung von luft | |
WO2016146238A1 (de) | Destillationssäulen-system, anlage und verfahren zur erzeugung von sauerstoff durch tieftemperaturzerlegung von luft | |
DE102019001960A1 (de) | Verfahren und Anlage zur Tieftemperaturzerlegung von Luft | |
WO2023036460A1 (de) | Verteilermodul für eine verfahrenstechnische anlage |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20201123 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230109 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20230520 |