EP1929230B1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
EP1929230B1
EP1929230B1 EP06805897A EP06805897A EP1929230B1 EP 1929230 B1 EP1929230 B1 EP 1929230B1 EP 06805897 A EP06805897 A EP 06805897A EP 06805897 A EP06805897 A EP 06805897A EP 1929230 B1 EP1929230 B1 EP 1929230B1
Authority
EP
European Patent Office
Prior art keywords
section
cooling
heat exchanger
pipe
coupling element
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.)
Active
Application number
EP06805897A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1929230A1 (en
Inventor
Giuseppe Belmonte
Gennaro Calabritto
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.)
Eni SpA
Original Assignee
Eni SpA
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Publication of EP1929230A1 publication Critical patent/EP1929230A1/en
Application granted granted Critical
Publication of EP1929230B1 publication Critical patent/EP1929230B1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/86—Other features combined with waste-heat boilers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0229—Double end plates; Single end plates with hollow spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1892—Heat exchange between at least two process streams with one stream being water/steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits

Definitions

  • the present invention relates to a heat exchanger.
  • the present invention relates to a heat exchanger for the rapid cooling of high temperature gas.
  • the present invention relates to a heat exchanger for the cooling of synthesis gas (syngas) coming from the catalytic partial oxidation of light hydrocarbons, for example methane, known as Catalytic Partial Oxidation (CPO).
  • synthesis gas syngas
  • CPO Catalytic Partial Oxidation
  • the rapid cooling of syngas at the outlet of the reaction unit is a necessity not to be neglected, as if this gas is maintained at those temperatures, even for short periods of time, it can give undesired by-products, such as alcohols or olefins (substantially ethylene and propylene) or even regenerate the starting methane.
  • Systems for rapidly cooling a gas which is at a high temperature are mentioned in literature, for example in the patents US 2,896,927 and US 4,377,132 or in "Syngas Cooler Systems for Gasification Plants", an ALSTOM brochure.
  • Some methods and relevant equipment include the direct cooling of gas by means of water (quenching). This solution however has the drawback of having to separate the cooled syngas from the aqueous vapour formed.
  • the object of the present invention relates to a device for the effective and rapid indirect cooling of syngas in applications in which the thermal recovery of the sensible heat of the gas is not required, for engineering simplicity or for economical reasons. For example in the production of hydrogen in medium- small-scale systems.
  • the Applicants have therefore found a heat exchanger, particularly suitable for the rapid cooling of gases which are at a temperature higher than 500°C, for example between 750 and 1100°C, and which allows to avoid any contact between the hot gas and the cooling liquid, normally water.
  • the object of the present invention therefore relates to a heat exchanger for the rapid cooling of a gas at high temperature, leaving a reaction unit/device, which comprises a coupling element to the reaction unit/device, a gas cooling and transportation pipe and a covering shell, in which:
  • the coupling element is axially crossed by the pass-through duct, connected to the reaction device, for example a CPO reactor for the production of syngas at a temperature ranging from 500 to 1100°C.
  • the external pipe which covers the first section of the transportation pipe of the hot gas is connected, at one end, to one or more specific feeding ducts of the cooling liquid, which pass through the coupling element.
  • the coupling element moreover, is independently cooled by means of a duct which feeds the cooling liquid in correspondence with its axis. Said fluid is discharged from the element, after following a spiral path from the inside outwards, by means of an opening connected to the side surface of the element itself.
  • the cooling fluid circulating inside the coupling element (for independent cooling) can be discharged inside the volume contained in the shell of the exchanger.
  • the other end of the second pipe which covers the first section, is free and ends with the curved section, substantially in a semicircle, so that the cooling liquid can debouch freely, but in the opposite direction, into the closed space of the shell, after flowing in the jacket between the two pipes.
  • baffles orthogonal to the axis, which also act as a support for both sections of the gas transportation pipe.
  • the second section of the transportation and cooling pipe is substantially continuous to the first one, without interruption, and develops in a spiral.
  • the spirals preferably envelop, without touching it, the first section of the covered pipe. It is possible however for the spirals to develop downstream of the first section.
  • the other end of the transportation pipe i.e. the end of the spiral section, is connected to an opening present on the shell for the discharge of the cooled gas outside the heat exchanger, object of the present invention.
  • the shell has a substantially cylindrical form with the diameter of the base substantially identical to that of the coupling element and larger than the diameter of the spirals.
  • the shell includes in its inner space the pipe system of the first and second section.
  • the space of the shell is filled with the cooling fluid, which is discharged by the exchanger through a proper discharge opening.
  • the circulating liquid destined for the cooling of the coupling element, also converges into the shell space.
  • the total liquid is discharged from the exchanger, object of the present invention, through the proper opening situated on the shell.
  • the pipe system of the first and second section is completely immersed in the cooling liquid.
  • the heat exchanger object of the present invention, comprises the coupling element A, the pipe system for the gas transportation and cooling B and the shell C.
  • the coupling element A also includes the ducts 1 and 2 for the feeding of the cooling fluid (water), which converge into the coaxial duct 7, and the cooling duct 4, for the independent cooling of the coupling element, which feeds the water to the center of the spiral 4', from which it exits through 5.
  • the cooling fluid water
  • the gas transportation and cooling pipe system B comprises the first pipe section 6, the coaxial pipe which jackets it 7 and the second section of the spiral pipe 8.
  • the first section of the pipe 6 includes, in turn, the first end 3, coinciding with the axial pass-through duct of the element A, and the second curvilinear end 3'.
  • the coaxial pipe 7 jackets the first section starting from the end 3 until the curved end 3'. At this end (3') the coaxial pipe is not closed, to allow the water to be discharged inside the shell, as will be described further on.
  • the shell C includes the discharge opening 9 of the cooled gas, the discharge opening 10 of the water and the supporting baffles 11 of the two sections of the gas transportation pipe.
  • the hot gas 12 leaving the reaction unit is introduced into the heat exchanger by means of the pass-through duct 3 of the coupling element A.
  • the gas flows into the first section 6 of the cooling and transportation pipe B and subsequently into the second section 8, to be then discharged at a low temperature through the discharge opening of the gas 9.
  • the gas flows through the first section 6, it undergoes a first rapid cooling by means of the water, fed through 1 and 2, which circulates inside the annular hollow space between the pipes 6 and 7, up to the end 3'.
  • the water flows freely in the closed space of the shell, filling it, it further cools the gas flowing through the section 8 of the cooling pipe and is discharged from the opening 10.
  • the latter is cooled by means of the specific system consisting of the duct 4, which feeds water to the system 4' developping in a spiral, and of the discharge duct 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Power Steering Mechanism (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Separation By Low-Temperature Treatments (AREA)
EP06805897A 2005-09-30 2006-09-26 Heat exchanger Active EP1929230B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001834A ITMI20051834A1 (it) 2005-09-30 2005-09-30 Scambiatore di calore
PCT/EP2006/009376 WO2007039199A1 (en) 2005-09-30 2006-09-26 Heat exchanger

Publications (2)

Publication Number Publication Date
EP1929230A1 EP1929230A1 (en) 2008-06-11
EP1929230B1 true EP1929230B1 (en) 2010-12-01

Family

ID=36097257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06805897A Active EP1929230B1 (en) 2005-09-30 2006-09-26 Heat exchanger

Country Status (15)

Country Link
US (1) US20080202734A1 (zh)
EP (1) EP1929230B1 (zh)
CN (1) CN101278165B (zh)
AP (1) AP2747A (zh)
AT (1) ATE490445T1 (zh)
BR (1) BRPI0616773B1 (zh)
CA (1) CA2622847C (zh)
DE (1) DE602006018633D1 (zh)
DK (1) DK1929230T3 (zh)
EA (1) EA011836B1 (zh)
IT (1) ITMI20051834A1 (zh)
MA (1) MA30001B1 (zh)
NO (1) NO339343B1 (zh)
UA (1) UA90736C2 (zh)
WO (1) WO2007039199A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107109260B (zh) * 2014-08-22 2021-09-10 简单方法系统公司 用于转化各种来源的工业废物为能量的设备、系统和方法
CN106679467B (zh) * 2017-02-28 2019-04-05 郑州大学 具有外接管箱的管壳式换热器
CN106855367B (zh) * 2017-02-28 2024-01-26 郑州大学 具有分布性出入口的管壳式换热器
US11662127B2 (en) * 2020-09-04 2023-05-30 Intellihot, Inc. Electric heating and cooling system

Family Cites Families (18)

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US2578059A (en) * 1945-05-29 1951-12-11 Graham Mfg Co Inc Heat interchanger
DE1918171B2 (de) * 1969-04-10 1972-01-05 Gaskuehler zum kuehlen von spaltgas oder synthesegas
CH508806A (de) * 1969-11-19 1971-06-15 Escher Wyss Ag Verfahren zum Abführen der Abwärme vom Arbeitsmittel einer Wärmekraftanlage und Wärmekraftanlage zur Durchführung des Verfahrens
US3921708A (en) * 1970-10-07 1975-11-25 Ygnis Sa Heat exchanger and method of operation thereof
NL7204070A (zh) * 1972-03-27 1973-10-01
CA1055479A (en) * 1975-08-27 1979-05-29 James W. Barr (Jr.) Descaling of heat exchanger
US4256176A (en) * 1978-04-10 1981-03-17 Aerco International, Inc. Heat-reclaiming system
US4377132A (en) * 1981-02-12 1983-03-22 Texaco Development Corp. Synthesis gas cooler and waste heat boiler
FR2514879B1 (fr) * 1981-10-16 1986-07-18 Creusot Loire Echangeur de chaleur pour un gaz charge en poussiere
DE3709339C1 (de) * 1987-03-21 1988-07-21 Steinmueller Gmbh L & C Gas-Fluessigkeits-Waermetauscher
DE3931685A1 (de) * 1989-09-22 1991-04-04 Borsig Babcock Ag Waermetauscher zum kuehlen von reaktionsgas
US5379832A (en) * 1992-02-18 1995-01-10 Aqua Systems, Inc. Shell and coil heat exchanger
US5487423A (en) * 1993-02-16 1996-01-30 Piscine Service Anjou Sa Heat exchanger
DE4407594A1 (de) * 1994-03-08 1995-09-14 Borsig Babcock Ag Wärmetauscher zum Kühlen von heißem Reaktionsgas
TW445366B (en) * 1998-05-15 2001-07-11 Noboru Maruyama Assembly body of heat exchange coils
US6293335B1 (en) * 1999-06-24 2001-09-25 Aquacal, Inc. Method and apparatus for optimizing heat transfer in a tube and shell heat exchanger
CN2445276Y (zh) * 2000-10-18 2001-08-29 郑宝佳 全封闭蓄热型螺旋管式热交换器
CN2511932Y (zh) * 2001-12-18 2002-09-18 大连保税区科利德化工科技开发有限公司 高纯氨的纯化冷凝设备

Also Published As

Publication number Publication date
BRPI0616773A2 (pt) 2013-01-01
WO2007039199A1 (en) 2007-04-12
ATE490445T1 (de) 2010-12-15
EA011836B1 (ru) 2009-06-30
DE602006018633D1 (de) 2011-01-13
UA90736C2 (en) 2010-05-25
EP1929230A1 (en) 2008-06-11
CN101278165B (zh) 2010-05-19
AP2008004435A0 (en) 2008-04-30
MA30001B1 (fr) 2008-12-01
CN101278165A (zh) 2008-10-01
US20080202734A1 (en) 2008-08-28
BRPI0616773B1 (pt) 2018-10-23
DK1929230T3 (da) 2011-03-21
EA200800649A1 (ru) 2008-10-30
NO20081431L (no) 2008-06-13
NO339343B1 (no) 2016-11-28
AP2747A (en) 2013-09-30
CA2622847C (en) 2014-07-08
ITMI20051834A1 (it) 2007-04-01
CA2622847A1 (en) 2007-04-12

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