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WO2011064579A2 - Colonne - Google Patents

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Publication number
WO2011064579A2
WO2011064579A2 PCT/GB2010/051958 GB2010051958W WO2011064579A2 WO 2011064579 A2 WO2011064579 A2 WO 2011064579A2 GB 2010051958 W GB2010051958 W GB 2010051958W WO 2011064579 A2 WO2011064579 A2 WO 2011064579A2
Authority
WO
WIPO (PCT)
Prior art keywords
column
accordance
support
column structure
vessel
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.)
Ceased
Application number
PCT/GB2010/051958
Other languages
English (en)
Other versions
WO2011064579A3 (fr
Inventor
Dewan Shamsuz Zaman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altrad Babcock Ltd
Original Assignee
Doosan Power Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Doosan Power Systems Ltd filed Critical Doosan Power Systems Ltd
Publication of WO2011064579A2 publication Critical patent/WO2011064579A2/fr
Publication of WO2011064579A3 publication Critical patent/WO2011064579A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide

Definitions

  • the invention relates to a column structure for an absorption column comprising a containment vessel and structured packing for use with an absorbent liquid reagent to effect the removal of a target gas from a gas phase.
  • the invention relates in particular to a column structure for a packed tower absorber column for removing CO2 from a gas phase by means of absorption.
  • the invention is particularly suitable for use in removing CO2 from the flue gases of thermal power plants fired by carbonaceous fossil fuels, both as new build and for retrofitting into existing thermal power plants.
  • Post-combustion carbon capture is a means of mitigating the effects of fossil fuel combustion emissions by capturing CO2 from large sources of emission such as thermal power plants which use fossil fuel combustion as the power source.
  • the CO2 is not vented to atmosphere removed from flue gases by a suitable absorber and stored away from the atmosphere.
  • Other industrial processes where similar principles might be applicable to capture post-process CO2 might include removal of CO2 generated in a process cycle, for example removal of CO2 from the process flow during production of ammonia, removal of CO2 from a natural gas supply etc.
  • CO2 can be separated from a gas phase, for example being the flue gas of a thermal power plant, by means of absorption by passing the gas through a column where the gas flows in an opposite direction to an absorbent in liquid phase. Such a process is sometimes referred to as wet scrubbing.
  • a well known absorbent reagent comprises one or more amines in water.
  • An absorption plant consists of at least one column where liquid absorber is run through the column as the gas that is to be scrubbed is passed in the other direction.
  • the column is usually vertical and the gas introduced into the lower part of the column and fresh absorbent solution is introduced from the top of the column.
  • Typical columns consist of multiple sections of structured packing consisting of multiple thin plates or like structures to maximize the surface area for mass transfer. These are stacked within a containment vessel of steel or other suitable structural material. The primary loading
  • absorption column means an elongate structure comprising one or more vessels defining process volumes wherein liquid and gas phases are countercurrently brought into contact to effect separation of a component of the gas phase into an actively absorbent component of the liquid phase.
  • column section is generally used to mean a zone within a column filling the column to its transverse extent, and being defined at the top or bottom by liquid and/or gas distributors respectively, and will typically comprise a support means for a section of packing.
  • packing refers generally to bodies of appropriate size, shape and configuration for fitment into the column to provide a high surface area volume density for the absorbent liquid to allow high mass transfer rates at the liquid-gas interface during countercurrent flow.
  • random packing structures are known, where individual packing units and/or the surface elements thereof are not in a particular packing orientation, the invention particularly relates to structured packing, where individual units and the surface elements thereof have specific orientation relative to each other and, in the stacked state, relative to the columnar direction.
  • Typical structured packings for absorbent columns for the absorption of flue gases such CO 2 are made of thin metal foil, expanded metal or woven wire screen stacked in layers. Polymeric material structures are also used in some cases. Thin steel foil structures are particularly preferred.
  • a cylindrical vessel shape is more robust than a rectangular vessel shape for a given area and therefore requires less material for wall stiffness and support.
  • a disadvantage of the cylindrical vessel is the difficulty associated with providing for attachment to an inner face of the column.
  • the structured packing making up the column is supported on flat plate horizontal bed supports and this again tends to limit the size of the rectangular column, at least in the narrower rectangular dimension, to about 6 m. Practical throughputs of only a few hundred tonnes CO 2 per day are achievable.
  • Packed Bed absorber towers which are capable of absorbing 700 t CO 2 per hour or more will present challenges of scale, design, construction and operation.
  • a single column for a 350 MW system based on existing packing and absorbing structures and a height of 60 - 80 m might require to be 18 m diameter.
  • a single column for a 800 MW system based on existing packing and absorbing structures might require to be 24 m diameter.
  • a column structure for the containment of high surface-area packing and absorbent liquid reagent for the removal of a target gas from a gas stream comprising an elongate prismatic column having plural planar
  • the distinct shape of the column in accordance with the first aspect of the present invention combines some of the advantages of both principal prior art shapes, cylindrical and rectangular.
  • a polygonal prismatic column structure in accordance with the present invention retains more of the inherent stiffness
  • the stiffness for a unit area is better than that for a rectangular vessel, with consequent advantages for the stability of the structure when packed, and for the stability of platform supports for the packing material.
  • the column has an outer wall that defines a perimeter shape.
  • the column comprises one or more process volumes for the absorption process.
  • the column comprises a single vessel defining such a process volume for the absorption process, and the wall(s) of the vessel defines a perimeter shape.
  • a column may have a composite arrangement comprising one or more inner vessels defining one or more process volumes for the absorption process within a perimeter support structure, the perimeter support structure defining a column perimeter shape.
  • a column may be a modular assembly of plural vessel modules each defining a part of the whole process volume, the resultant assembly defining a perimeter shape.
  • the column defines a tower suitable for use as a packed tower for a wet scrubbing process of a gas phase in familiar manner. It is distinctly characterised by the elongate prismatic column structure (whether comprising a single elongate prismatic vessel or modular vessel assembly or composite assembly with elongate prismatic perimeter support structure) having plural planar generally vertical walls together defining a closed simple polygonal perimeter.
  • the potential is offered for a greater structural size (that is, a greater surface area, and hence a greater volume per unit height) for an otherwise common range of structural parameters than would be the case with a rectangular structure.
  • a column structured in accordance with the shape of the present invention obviates some of the disadvantages of both prior art designs, cylindrical and rectangular, which tend to impose vessel size constraints for a column containment vessel.
  • a polygonal prismatic vessel and/ or column as above described is conveniently provided in the form of a plurality of planar wall modules, each comprising a structural sheet member to constitute when assembled in situ a part of a wall, preferably having a long dimension no greater than 6 m, and a plurality of connection members to provide for connection and assembly of the same into a complete vessel and/ or column in situ.
  • the column is polygonal in cross section with longitudinally extending walls defining a closed simple polygonal perimeter. The preferred shape is determined by structural
  • the polygonal structure preferably comprises a cyclic polygon (that is, the vertices define a circumscribed circle), and is preferably a regular polygon (that is, equiangular and equilateral).
  • An even number of sides is likely to be preferred, and in particular a polygon which provides paired opposite parallel sides.
  • the column has planar sides, the internal angles at the vertices of the polygon defined by each side are at least 120°, and consequently the column has at least six sides.
  • the total number of sides is likely to be a compromise between a minimum number below which a reasonable approximation to cylindrical structure is lost and a maximum number which reflects a desire to minimize complexity of assembly.
  • a column with 12 to 20 sides will typically be preferred for most applications.
  • the column of the present invention is preferably adapted for vertical operation, and for example adapted for the liquid to flow downwards from an inlet near the top and for the gas to be circulated counterwise upwards from an inlet near the bottom.
  • the or each vessel or vessel module making up the column is intended in use to contain absorption packing structures and to allow liquid absorbent and gas to be circulated counterwise through the packing structures thus constituting an absorber process volume.
  • Such an absorber column preferably comprises at least one and preferably a plurality of layers of packing material to maximize surface area for mass transfer during the absorption process.
  • the column structure preferably comprises at least one support platform to support packing material in a column zone.
  • the column structure comprises a plurality of support platforms at a plurality of levels to support plural stages of packing, for example at least one and preferably a plurality of absorbent liquid reagent stages and at least one washing stage in familiar manner.
  • Each level comprises a transverse platform support extending generally perpendicularly to the polygonal walls, for example generally horizontally to a vertical column, to provide a support structure for the packing material making up a columnar section in familiar manner.
  • top and/or base may comprise a partly pyramidal structure, that is may comprise a planar wall structure in which wall sections making up the top and/ or base extend from the respective perimeter walls making up the polygonal column. Again, such structures are easier to manufacture, for example on a modular basis, and to transport for assembly in situ.
  • a column structure for the containment of high surface area packing and absorbent liquid reagent for the removal of a target gas from a gas stream comprises:
  • a support structure extending inwardly from the perimeter of the column towards the top thereof;
  • the internal column structure may comprise a transverse structure extending within the walls of the column and for example a transverse platform support extending within the walls of the column to provide a support structure for a high surface area packing material in familiar manner.
  • the internal column structure may comprise one or more process vessels or vessel modules within the walls of the column.
  • a column may have a composite assembly in which one or more process vessels or vessel modules defining absorption volumes for the absorption reaction are disposed within a perimeter structure and supported upon slung tensile members attached to the top support structure of the column.
  • the top support structure may be integral with a roof closure or partial closure of the column, for example integral with a roof closure or partial closure defining a wall structure sloping in tapered manner upwardly towards the centre (for example comprising an optionally frusticated dome, ogive or pyramid). Additionally or alternatively the top support structure may be separately provided as a bespoke support structure towards the top of the column for example in the vicinity of and for example just below a column roof.
  • the slung tensile members preferably support a plurality of transverse platforms support structure each to support a stage of packing, for example providing in use with packing in place at least one and preferably a plurality of absorbent liquid reagent stages and at least one washing stage.
  • the column of the preferred embodiment is additionally
  • slung tensile members slung from above the packing from a top support structure for example comprising part of the roof or a support structure in the vicinity of the roof to support structural platform members within the column which at least in part provide support for the packing in situ.
  • Platform structures at the level of each section within the column are no longer supported solely by the vessel walls but are supported at least partly by the top support structure.
  • the slung supports provide for a more even load distribution. For a given series of load parameters and materials, a greater size of column is made possible.
  • the or each platform support structure includes a horizontal support means of lesser dimension than the outer walls of the column and supported within the outer walls of the column by the tensile members.
  • the horizontal support means is preferably of a similar shape to, and for example concentrically located with, the outer walls of the column.
  • the horizontal support means is supported by plural tensile members.
  • the horizontal support means in a particular preferred case comprises an outer perimeter frame supported by the tensile members and plural transverse support elements mounted thereon.
  • This perimeter frame preferably comprises a similar polygon to that of the outer walls of the column which is preferably concentrically slung.
  • Plural tensile means are preferably provided evenly spaced around the perimeter frame, and for example supporting each side of a polygonal perimeter frame.
  • a support platform level is constructed comprising transverse support elements supported by the tensile members, and for example supported on a slung perimeter frame as above described, and additional transverse support elements extending from and supported by the walls of the column and/ or of a vessel or vessel module. Together, these make up a modular platform for the support of packing for a column section. Because the load is supported in part by the slung tensile members and then via the top support structure through the walls, rather than entirely directly by a platform connection at right angles into the walls, larger columns can be built to support larger loads with the same materials.
  • a column may be divided into plural flow zones. Partition wall structures may be provided extending vertically along at least a part of the length of the column, and preferably the entire active length of the column, to partition the column where they so extend into at least two zones which are fluidly separate.
  • the slung structures comprise a plurality of vertically extending tensile members defining a support means for at least one and preferably a plurality of support structure levels, in particular carrying the perimeter frame of a modular support structure as above described.
  • the notional perimeter circumscribed by the vertical tensile members is additionally provided with a partition wall structure extending vertically along at least a part of the length of the column, and preferably the entire active length of the column to partition the column where it so extends into at least one inner and at least one outer zone which are fluidly separate.
  • such a partition wall comprises vertical wall members parallel to and either side of the tensile members.
  • the partition wall members not only partition the internal volume of the column into two vertically defined zones, but also protect the tensile members from the fluid environment within the column, which can be particularly harsh chemically, allowing freer material selection for the required tensile properties of the tensile members.
  • the internal partition wall will be a similar shape to, smaller in transverse extent than, and concentrically disposed within, the outer wall(s) of the column.
  • partition wall structures may additionally or alternatively be provided separately of the slung tensile members extending vertically along at least a part of the length of the column, and preferably the entire active length of the column where they so extend into at least two zones which are fluidly separate.
  • Walls created in this manner define at least inner and outer internal zones extending longitudinally through the column and/ or a vessel or vessel module. This offers the possibility that the different zones so defined by the vertical walls may be used in different ways for different flow
  • a zone may be further subdivided by further internal partition vertical walls of any appropriate orientation, for example
  • outer internal zone may be further subdivided by further, radial, wall structures.
  • a column may be divided into plural flow zones which are fluidly separate in that separate modules or groups of modules are adapted to serve in use as separate flow zones.
  • At least some of the load carried in a conventional structure by a beam/platform connection at 90° directly into and through the wall is carried instead as a tensile load in the tensile slung members and then through the top support structure, for example forming part of the roof or support structure in the vicinity of / just below the roof, into the column wall as a vertical compressive load.
  • a static pre-load may be applied to the structure.
  • a pre-stressing load may be applied prior to or subsequent to the inclusion of packing material.
  • the sling members may be pre- tensioned and/ or an open frame support for a platform may be placed in compression.
  • the tower is preferably orientated vertically. It is a particular advantage of the present invention that larger sized column structures, and in particular column structures with a larger transverse extent and thus a larger volume per unit height, can be constructed.
  • the column is so structured as to have a minimum dimension in a transverse direction which is at least 10 m and more preferably at least 15 m to 30 m or more.
  • a column structure in accordance with the present invention preferably has comparable transverse dimensions.
  • the column structure comprises a cyclic polygon such as a regular polygon, it can be defined by a circumscribed circle having such a diameter.
  • structural, fabrication and transport considerations applicable to conventional practical materials such as structural steel have been held to limit the practical dimensions of a cylindrical vessel to a diameter of around 6 m, and to limit the practical shortest direction of a rectangular vessel to a similar 6 m.
  • a column structure in accordance with the invention is as a packed tower comprising high surface area packing material and absorbent liquid reagent for the removal of a target gas from a gas stream.
  • a packed tower absorber column comprising a column structure as above described with packing material in situ.
  • the column structure comprises a plurality of support platform structures carrying packing material in a plurality of column sections, including at least one and preferably a plurality of absorbent liquid reagent stages and at least one washing stage.
  • the packing material is a structured packing material.
  • the structured packing material provides a high surface area structure to provide a high gas/liquid contact area per unit volume for high mass transfer, and may be of suitable familiar form, in particular providing plural arrays of thin corrugated metal sheet.
  • the precise nature of the packing material is not pertinent to the invention, which is intended to be used with known packing materials and known absorbent chemistries, but which will also support new packing materials and chemistries as they are
  • the internal volume of the column preferably further comprises, typically for example disposed at the top of each structured packing section, one or more of a collector structure, a distributor structure, and a bed limiter in familiar manner.
  • the column may further comprise in a washing stage a demister structure. All the foregoing will be of familiar design scaled up as applicable to the larger columns made possible in the present invention.
  • the column preferably further comprises a means to supply absorbent solution through one or more inlets in the vicinity of the top of the column.
  • the column is a CO2 wet scrubber, and the solution may comprise one or more aqueous amines, for example including but not limited to monoethanolamines or methyl-diethanol- amines.
  • the column is provided for use in a scrubber column for flue gases and is provided with a flue inlet towards the bottom of the column.
  • Figure 1 is a longitudinal cross section through a column structure comprising a vessel embodying the principles of the invention
  • Figure 2 illustrates in plan view a slung floor support at a first platform level of the embodiment of Figure 1 ;
  • Figure 3 illustrates in plan view the respective orientations of three further floor supports comprising second to fourth platform levels
  • Figure 4 illustrates in plan view a packing support grid, in this instance at level 4;
  • Figure 5 illustrates in plan view an example distributor
  • Figure 6 illustrates in plan view an example bed limiter.
  • Figure 1 illustrates a vertically oriented column to serve as a flue gas scrubber or absorber for post-combustion capture of CO2 from the flue gas of a thermal power plant using a carbonaceous fuel source.
  • the column of figure 1 embodies the structural principles of the present invention as illustrated in more detail in the other figures, although the stages and active materials illustrated in figure 1 could also be an exemplification of a prior art flue gas scrubber or absorber.
  • the column 1 comprises an outer containment vessel having, as is more clear from subsequent figures, a plurality of vertical planar walls 2.
  • the vessel defines a gas inlet 3 which in the example is an inlet for flue gases (which may be direct or partly pre-processed) from a thermal power plant, and a gas outlet 1 1 which will vent flue gases to atmosphere or pass for further processing having been scrubbed.
  • the flue gases circulate from bottom to top, and absorbent solution is introduced towards the top of the column to circulate in the counterwise direction in familiar manner.
  • Each structured packing section is carried on a support 4 and is topped by a bed limiter 8.
  • the levels of structured packing below the main distributor 7a are provided with secondary structures acting as collectors 6 and secondary distributors 7 for the absorbent solution.
  • a wash collector 6a is provided at the bottom of the wash section packing 5a.
  • a demister 9 is provided at the top of the column.
  • Such multiple stages and structures will be generally familiar to the person skilled in the art from generally equivalent structures found in prior art cylindrical columns.
  • the illustrated embodiment differs from such prior art cylindrical columns in two ways in particular, both of which offer the potential for it to have much increased cross sectional area.
  • First as is more apparent from subsequent figures and is discussed in detail below with reference to Figure 2, it has a polygonal rather than cylindrical shape.
  • Second as can be seen in Figure 1 , the supports 4 are not merely supported by the walls 2, but are also supported by elongate tensile members 16 slung from the roof 14. Additionally or alternatively tensile members may be slung from a support structure inside the roof. This additional support structure transfers the load in a more stable way into and directly down through the walls 2.
  • the tensile members 16 preferably comprise high tensile strength steel wire.
  • these wires are contained within paired parallel vertical internal walls to protect them from the process environment.
  • these paired walls have the further effect of dividing the internal volume of the column 1 into an inner zone and an outer zone.
  • Further internal walls may be provided, for example comprising radial walls to divide the outer zone into multiple sub zones.
  • the outer wall structures 2, and the internal walls, are preferably fabricated from structural steel plate sections.
  • a suitable absorbent liquid such as, in a familiar chemistry, amine dissolved in water, is used.
  • the gas to be scrubbed in the embodiment flue gas from a thermal power plant, is introduced into the lower part of the column via the gas inlet 3 and fresh absorbent solution is introduced from the top of the column.
  • the absorbent liquid runs down through the structured packing 5 as the CO2 rich flue gas passes up through it.
  • CO2 in the flue gas will be absorbed by the amine solution by formation of weak chemical bonds.
  • the amine solution is enriched with CO2 as it travels down the column and CO2 is removed from the flue gas as it travels up the column.
  • the flue gas reaches the top of the column it is vented to the atmosphere or passed for further processing via the outlet 1 1 , at which point a large proportion of the CO2 has been removed.
  • CO2 enriched amine solution passes through the floor 13 into the lower volume 12 to be discharged via outlet 15.
  • the floor 13 is designed using flat plate and sloped at 5° to the horizontal.
  • the floor stiffener is integrated with the central outlet 15. The solution is passed on to suitable apparatus for recovery of the
  • Figure 2 illustrates in plan view the support platform structure 4 at a first support level.
  • the outer walls of the vessel 2 are planar walls welded together so as to form when complete a regular polygonal structure, in this case a regular sixteen sided structure.
  • This polygonal structure in itself confers several advantages.
  • Walled sections may be manufactured as flat steel plate, with advantages of manufacturing shipping associated therewith, but nevertheless assembled into an overall structure which more closely approximates to a cylinder, sufficiently closely at least to get some of the benefits of structural stiffness that follow on from such a cylindrical structure.
  • the inner ring 25 comprises a support frame of suitable steel beams which is supported by the high tensile strength steel wires.
  • these high tensile strength steel wires hang from the roof, but it will be appreciated that other structures may be provided separate from the roof as additional or alternative support means.
  • the particular support structure illustrated in Figure 2 further comprises cross beams 21 in a first direction on which is supported a central platform 27 and further transverse stays 23.
  • the void factor within the support grid in the embodiment can be maintained to 92% minimum by appropriate use of the combination of slings and beams manufactured from bars, flat plates and flanges with controlled width.
  • FIG. 3 a to c Three further support structures are illustrated in Figure 3 a to c, respectively being the support structures at the second to fourth levels. As is illustrated, the support structures are essentially identical, but each is placed in a different orientation to maximize the strengthening and stiffening effect of the transverse structures.
  • FIG. 4 An example in plan view of a level of structured packing in situ is shown in Figure 4.
  • the structured packing may be of any suitable conventional form.
  • a column may have a composite arrangement comprising one or more inner vessels defining one or more process volumes for the absorption process within a perimeter support structure, the perimeter support structure defining a column perimeter shape.
  • a column may be a modular assembly of plural vessel modules, the resultant assembly defining a perimeter shape.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

La présente invention concerne une structure de colonne utilisée pour contenir un remplissage à surface active importante et un réactif liquide absorbant pour éliminer un gaz cible d'un flux de gaz. La structure comprend une colonne prismatique allongée comportant plusieurs parois planes s'étendant longitudinalement définissant ensemble un périmètre polygonal simple fermé, l'angle interne entre chaque paroi formant le périmètre polygonal étant au moins égal à 120° mais inférieur à 180°.
PCT/GB2010/051958 2009-11-24 2010-11-24 Colonne Ceased WO2011064579A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0920538.6 2009-11-24
GB0920538A GB0920538D0 (en) 2009-11-24 2009-11-24 Column

Publications (2)

Publication Number Publication Date
WO2011064579A2 true WO2011064579A2 (fr) 2011-06-03
WO2011064579A3 WO2011064579A3 (fr) 2011-09-01

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PCT/GB2010/051958 Ceased WO2011064579A2 (fr) 2009-11-24 2010-11-24 Colonne

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WO (1) WO2011064579A2 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN105401075A (zh) * 2015-11-16 2016-03-16 山东钢铁股份有限公司 一种420MPa级H型钢及其制备方法

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DE1419196A1 (de) * 1958-12-28 1968-10-03 Takeda Pharmaceutical Vorrichtung zur Durchfuehrung von Gas-Fluessigkeits-Reaktionen
DE4111832A1 (de) * 1991-04-11 1992-10-15 Kessler & Luch Gmbh Biofilter
EP1905815A1 (fr) * 2006-09-28 2008-04-02 De Smet Engineering S.A. Procédé et disposatif de transfert de phase
JP2012508097A (ja) * 2008-11-10 2012-04-05 プロセス グループ ピーティーワイ リミテッド ガス捕捉用プロセス容器およびプラント

Non-Patent Citations (1)

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Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105401075A (zh) * 2015-11-16 2016-03-16 山东钢铁股份有限公司 一种420MPa级H型钢及其制备方法

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Publication number Publication date
GB0920538D0 (en) 2010-01-06
WO2011064579A3 (fr) 2011-09-01

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