US3788281A - Process and waste-heat boiler for cooling soot-containing synthesis gas - Google Patents

Process and waste-heat boiler for cooling soot-containing synthesis gas Download PDF

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US3788281A
US3788281A US00342670A US3788281DA US3788281A US 3788281 A US3788281 A US 3788281A US 00342670 A US00342670 A US 00342670A US 3788281D A US3788281D A US 3788281DA US 3788281 A US3788281 A US 3788281A
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tube
gas
steam
tubes
vessel
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N Campagne
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Shell USA Inc
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Shell Oil Co
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    • 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
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
    • B01D51/10—Conditioning the gas to be cleaned
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/36—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using oxygen or mixtures containing oxygen as gasifying agents
    • 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
    • C10J3/74—Construction of shells or jackets
    • C10J3/76—Water jackets; Steam boiler-jackets
    • 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
    • C10J3/78—High-pressure apparatus
    • 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
    • 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
    • F28D7/005—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 for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Definitions

  • ABSTRACT Hot, soot-containing synthesis gas obtained by the incomplete combustion of carbonaceous fuels is cooled and heat abstracted therefrom in a waste-heat boiler containing one or more helically coiled tubes through which the hot gas is passed and one or more additional tubes through which steam is passed, said tubes being in external, heat-exchanging contact with a molten metal, metal alloy or metal salt coolant medium.
  • the disclosed process and apparatus permit the generation of high pressure, superheated steam from synthesis gas while avoiding excessive pressure differences across the helically coiled gas tubes.
  • a PRESSURE STEAM HOT GAS PROCESS AND WASTE-HEAT BOILER FOR COOLING SCOT-CONTAINING SYNTHESIS GAS BACKGROUND OF THE INVENTION 1.
  • This invention relates to an improved process for cooling and abstracting heat from soot-containing synthesis gas obtained by the incomplete combustion of a fuel containing free and/or bound carbon with the simultaneous generation of high pressure steam.
  • the invention also relates to a waste-heat boiler suitable for carrying out the process.
  • Fuels suitable for use in such processes include, for example, gaseous hydrocarbons, naphthas, heavy oils and solid fuels, e.g., coal in an aqueous slurry, and the like.
  • the fuel may also contain process soot which has been separated from the synthesis gas.
  • the crude synthesis gas produced by partial combustion of the aforementioned fuels typically contains in addition to large quantities of hydrogen and carbon monoxide, a smaller quantity, up to 5% or more of suspended soot particles. Since the crude synthesis gas is generally discharged from the reactor at temperatures above 1,000 C, e.g., l,200 to 1,400 C or more, it is an obvious source of potential energy. However, this thermal energy can be recovered only with great difficulty in conventional waste-heat boilers because of the presence of soot particles which tend to deposit on the inside of heat exchanger tubes. For this reason helically coiled waste-heat boilers, such as those described in US. Pat. No. 2,967,515, and Can. Pat. No. 634,687 to Hofstede et al.
  • helically coiled tubes While effective in overcoming the soot deposition problem, the use of helically coiled tubes place certain other limitations on the process with respect to permissible pipewall temperatures and the pressure differential between the cooling medium and the gases to be cooled. These limitations result from the lower mechanical strength of helically coiled tubes due to their method of manufacture. Generally, coiled tubes are formed by winding straight tubes which produces unroundness which in turn appreciably reduces the mechanical strength of the coiled tubes.
  • helically coiled tubes are not wellsuited for the generation of steam at high pressures, e.g., 50 to I50 atmospheres or higher, from hot gases having moderate or low pressures because of the excessive difference in pressure between the coolant (typically water or steam) on the outside of the coiled tube and the pressure of the hot gases flowing through the tube.
  • high tubewall temperatures are often experienced which also contribute to tube failures.
  • U. S. Pat. No. 3,7l2,271 discloses one suitable method for cooling hot synthesis gas and generating high pressure steam in a coiled tubetype waste-heat boiler which involves utilizing a straight tube of critical length in conjunction with the coiled tube, and controlling the velocity of the gases flowing through the tubes.
  • the present invention is directed to a quite different approach to this problem which utilizes a molten coolant medium to indirectly transmit heat from the hot gases to the water/steam which permits the generation of superheated steam at very high pressures while avoiding excessive pressure differences across the helically-coiled tubes.
  • the coolant medium used in accordance with the invention has a high boiling point, e.g., higher than the temperature prevailing in the wasteheat boiler and thus remains in liquid phase.
  • the temperature of the coolant medium will rise and fall in a range which is generally between 300 and 850 C.
  • the pressure above the coolant medium is maintained at a pressure in the same order as that of the synthesis gas flowing through the helically coiled tube. This can be accomplished by use of an inert gas or a portion of the synthesis gas as hereinafter discussed.
  • the inventive process and apparatus are eminently suitable for cooling synthesis gas obtained over a relatively wide range of pressures, e.g., l to 150 atm., more typically 25-60 atm.
  • the coolant medium employed in accordance with the invention can be any metal, metal alloy or metal salt or any other molten substance which has a sufficiently low melting point that it does not involve handling difficulties, e.g., a melting point or range below 420 C, and a sufficiently high boiling point that it remains substantially in liquid phase at the temperature prevailing in the waste-heat boiler, e.g., 350-850 C.
  • suitable metals include, lead, bismuth, cadmium, gallium, indium, mercury, selenium, thallium, tellurium and zinc. Alloys of these elements among themselves and/or with other elements can also possess the right properties for the coolant sought.
  • Bismuth, indium, thallium, lead, gallium and tellurium have the advantage of a high boiling point (in the case of tellurium 1,390 C and in the other cases even higher) so that the vapor pressure at the operating temperatures in the waste-heat boiler will be low.
  • alloys do not have a solidification point, but a solidification range. Segregation phenomena, such as may occur in molten alloys, are obviated by circulation of the coolant as hereinafter described. Very attractive alloys include those in which the component elements are present in certain eutetic percentages so that intermetallic compounds are formed which have a lower melting point or melting range than the component metal. The alloys should preferably be completely miscible. Of the aforementioned metals and metal alloys, molten lead and molten lead alloys are particularly preferred.
  • the molten coolant medium employed in the present invention has a high boiling point (and corresponding low vapor pressure), there is no appreciable pressure buildup in the space above the coolant due to the evaporation of the coolant which is not the case when water alone is employed as coolant as in conventional waste-heat boilers. Since the coolant medium employed in the invention does not contribute to the pressure in the boiler, it is possible to regulate to control the pressure above the coolant at substantially the same pressure as that of the gas in helically coiled tubes as hereinafter described.
  • the coolant medium in addition to being in external contact with one or more gas tubes, is also in external contact with one or more steam tubes, by means of which heat is transferred from the coolant to the steam.
  • This in effect minimizes the temperature range through which the coolant passes and enables effective withdrawal of heat from the system, the heat being indirectly transmitted from the hot gases to the steam via the coolant medium.
  • the fact that the high pressure of the generated steam no longer affects the gas tubes is also significant because these tubes are generally exposed to the highest temperatures, particularly near the inlet side of the gas tubes where the gas arrives at a temperature of more than l,00O C.
  • the steam tubes on the other hand, which the (high) steam pressure does affect, have a much lower temperature, which will generally be below 600 C. At such temperatures the strength of structural materials is much higher.
  • the invention therefore permits the generation of steam in helical coil waste-heat boilers at much higher pressures and temperatures than was heretofore possible.
  • Good cooling of the gas tubes and good heat withdrawal are achieved by circulating the coolant between a first zone in which it comes into contact with the gas tube or tubes to be cooled, and a second zone in which it is out of contact with the gas tube or tubes.
  • the gas tube or tubes are most intensively cooled at or near the inlet side where the temperature of the gas is highest, e.g., up to 1,400 C or higher.
  • the coolant on coming into contact with the gas tube or tubes in the first zone should on the whole preferably flow in the same direction as the gas in the gas tube or tubes.
  • Further cooling of the coolant in the abovementioned second zone may be effected according to the invention by heat-exchanging contact with one or more water tubes through which water is flowed.
  • water tubes through which water is flowed.
  • steam will be formed in these tubes.
  • Either straight or helically coiled tubes may be used for the steam or water tubes. If helically coiled tubes are employed, as the steam tubes, the coils are arranged coaxially between and/or inside one another.
  • the coolant preferably flows from the first to the second zone via a centralvertical pipe which is arranged coaxially inside the coils of the helically coiled tubes for gas, steam and water, In this way natural circulation of the coolant is obtained, said coolant descending through the central pipe in cooling. This also implies that the coolant ascends in the space around the central pipe where the said tubes are situated in the various zones.
  • both steam and water tubes are employed, that they be directly connected in order that the steam formed in the water tubes can be used as coolant in the steam tubes.
  • the pressure of the steam in the water and steam tubes in this case will be identical.
  • the temperature of the generated steam will ,of course, be much lower in the water tubes.
  • the steam in the steam tubes is generally superheated, in the water tubes it will be saturated.
  • superheated steam is obtained from the saturated steam which is converted into superheated steam in the steam tubes.
  • the steam in the steam tube or tubes is preferably caused to flow countercurrently to the flow of gas in gas tube or tubes, In this way the steam immediately before leaving the waste-heat boiler, is in heatexchanging contact with the gas while the latter is still hot.
  • the space above the coolant medium and outside the gas and steam tubes is preferably pressurized, e.g., by bubbling a gas directly through the coolant at an elevated pressure. It is obvious that for reasons of safety, a closed waste-heat boiler will never be entirely filled with liquid coolant because the coolant will expand upon heating.
  • an inert gas will be provided above the coolant, in which case it is possible according to the invention to keep the pressure of this inert gas at or near the value of the pressure of the synthesis gas in the gas tubes thereby minimizing the pressure difference across the tubewalls.
  • the present invention enables superheated steam to be produced having a temperature above 400 C and preferably above 500 C.
  • This steam which originates from the steam tube or tubes, has a relatively high energy content.
  • the present invention also relates to a waste-heat boiler for cooling and abstracting heat from high temperature gases containing solid particulate matter such as soot, which comprises l) a closed vessel suitable for containing a coolant medium which is liquid at operating conditions, (2) a helically coiled tube extending through the vessel, said tube being in external heatexchanging contact with the cooling medium and having an inlet end for receiving the high temperature gas and an outlet end through which the gas, at a lower temperature, is discharged from the boiler, (3) a second tube extending through said vessel, said tube also being in external heat-exchanging contact with the coolant medium and having an inlet end into which steam is introduced and an outlet end through which steam, at a higher temperature, is discharged from the vessel.
  • a central inlet and- /or outlet for gas and steam, respectively may be used, or a separate inlet and/or outlet for gas and steam, respectively, may be used for each gas tube and each steam tube, respectively.
  • the above-described waste-heat boiler meets a secondary object of the invention, namely to provide a waste-heat boiler for cooling and abstracting heat from synthesis gas from a partial combustion process in which the gas tube or tubes are not subjected to an excessively high pressure at the prevailing high temperature of the gases.
  • this waste-heat boiler is filled with the coolant medium before use. If this coolant consists of lead, it may, for example, be poured into the vessel in the form of pellets, and heated and melted by means of the steam tube or tubes.
  • the vessel of this waste-heat boiler is preferably cylindrical with a central open-ended pipe mounted coaxially in the vessel through which the coolant is downwardly circulated.
  • the central pipe is preferably located inside the coils of the helically coiled tube for gas and the tube for the steam which preferably is also a helically coiled tube, but may be straight tube. If a wasteheat boiler designed in this way is positioned vertically,
  • one or more helically coiled water tubes may be provided in addition to the gas and steam tubes, the gas and steam tubes being mounted in a relatively wide upper part of the vessel, while the water tube or tubes are located in the relatively narrow lower part of the vessel.
  • the coolant is additionally cooled by the water tubes during circulation before coming into contact with the gas tube or tubes. It is also possible for the gas tube or tubes to be connected to the reactor for incomplete combustion via associated straight tubes which pass through the waste-heat boiler vessel.
  • These straight tubes may then pass through the narrow lower part of the vessel, so that the gas in the tubes there is precooled by heat exchange with the coolant medium which will cause the temperature of the coolant in this narrow part of the vessel to rise. Precooling of the synthesis gas in straight sections of tube may under certain circumstances be advantageous.
  • FIGS. 1 and 2 of the accompanying drawings are diagrammatic vertical crosssections of waste-heat boilers according to two embodiments of the invention.
  • the waste-heat boilers shown in FIG. 1 comprises a cylindrical vessel having a relatively wide upper part 1 and a relatively narrow lower part 2.
  • the vessel contains along the greater part of its length a central vertical pipe 3, coaxially arranged within the vessel.
  • the central pipe is secured to the wall of the vessel free from bottom closure 4 and top closure 5.
  • helically coiled gas tube 6 Arranged coaxially around pipe 3 in the upper part of the vessel, are helically coiled gas tube 6 for synthesis gas and helically coiled steam tube 7 for steam.
  • a helically coiled water tube 8 is arranged coaxially around the pipe 3 in the lower part of the vessel.
  • annular tube through which synthesis gas or ther inert gas can be passed under super-atmospheric pressure into the vessel via connection E1.
  • the gas thus introduced serves to keep the coolant medium 12 e.g., lead, pressurized under gas cap 13.
  • the synthesis gas bubbling through can be discharged via outlet 14 passing through top closure 5, by means of a tube (not shown) for maintaining the superatmospheric pressure inside the vessel.
  • the pressure in the gas cap is preferably maintained at substantially the same pressure as the gas in gas tube 6.
  • the synthesis gas to be cooled originating from a reactor (not shown) for the incomplete combustion of a carbonaceous fuel is introduced into gas tube 6 via inlet 15 located in transition area 9, and after being cooled is discharged from the waste-heat boiler via outlet 16.
  • the required cooling water is introduced via inlet 17 into water tube 8 wherein it is partially vaporized and is discharged as low-pressure steam into annulus l8 and thence to risers 19, whereafter it is introduced into annular upper end 20 of steam tube 7.
  • the steam enters into indirect heat-exchange with the coolant medium which in turn cools gas tube 6.
  • the steam is ultimately discharged from outlet 21 as high-pressure steam.
  • This annular space is the abovementioned first zone in which the coolant comes into contact with the gas tube and the steam tube.
  • the coolant descends in central pipe 3, gradually cooling as it descends. This is indicated by arrow 22.
  • the interior of pipe 3 forms part of the above-mentioned second zone in which the coolant is not in direct contact with the gas tube.
  • Arrows 23 indicate the further cycle of the coolant, which now comes into heat-exchanging contact with water in tube 8 in the part 2 of the vessel.
  • the coolant is in another part of the above-mentioned second zone, in which it is in contact with a water tube although it is not in contact with the gas tube.
  • the waste-heat boiler shown in FIG. 2 comprises two helically coiled gas tubes 6 and 6', which are arranged around central pipe 3 in part 1 of the vessel and which extend between lower ring 24 which is connected to inlet 15 for the hot gas, and upper ring 25 which is connected to the vertical pipe 16 for discharge of the cooled gas.
  • In the part 2 of the vessel there are two helically coiled water tubes 8 and 8', for cooling water. They are connected between lower annular line 26 and upper annular line 18 which is connected to stand-pipe 19 for passage of cooling water and/or generated steam to the upper ring 20 of helically coiled steam tubes 7 and 7', which are arranged in the upper part of the vessel.
  • These two steam tubes discharge at their lower ends into ring 27 which is connected to discharge 21 for high-pressure steam.
  • the gas cap 13 above lead alloy coolant 12' consists of an inert gas.
  • thermoelectric a waste-heat boiler of the type shown in FIG. 2 the following temperatures may, for example occur:
  • the hot synthesis gas enters the vessel through bottom closure 4, via tube 15, approximately at l,400 C and is cooled to 1,100 C before entering ring 24.
  • the gas in helically-coiled tubes 6 and 6 has a temperature of 750 C, while in ring 25 the temperature of the gas has fallen at 400 C.
  • the cooled synthesis gas is discharged from the waste-heat boiler via vertical pipe 16.
  • the lead alloy coolant has a temperature 9f .39" At hs highe t w lw Water tu s 8 4219.
  • T prqcess cla m w re n, thqsw ntm dium is further cooled in the second zone by external contact with a tube through which water is flowed.
  • a waste-heat boiler for cooling and abstracting heat from high temperature gases containing solid particulate matter which comprises: (1) a closed vessel suitable for containing a coolant medium which is liquid at operating conditions, (2) a helically coiled tube extending through said vessel, said tube being in externaLheat-exchanging contact with the coolant medium and having an inlet end for receiving the hightemperature gas and an outlet end through which the gas, at a lower temperature, is discharged from the boiler, (3) a second tube extending through said vessel, said tube also being in external, heat-exchanging contact with the coolant medium and having an inlet end into which steam is introduced and an outlet end through which steam, at a higher pressure, is discharged from the boiler.
  • the waste-heat boiler of claim 12 wherein the vessel is cylindrical and contains a central, open-ended, pipe through which the coolant medium is downwardly circulated, said pipe being coaxially mounted within said vessel and defining therewith an annular elongated space in which the helical coiled tube for the high temperature gas and the tube for the steam are located.
  • both the tube for the high temperature gas and the tube for the steam are helically coiled tubes, and the coils of said tubes surround the central pipe.
  • the waste-heat boiler of claim 14 wherein the vessel contains an additional helically coiled tube mounted coaxially in the lower part of the vessel, the coils of which surround the central pipe, said tube having an inlet end into which water is introduced and an outlet end connected to the helically coiled steam tube,which latter tube is located in an upper part of said vessel.
  • the waste-heat boiler of claim 15 wherein the vessel contains means for introducing a pressurized gas into the lower part thereof to maintain a pressure in said vessel substantially the same as the pressure of the high temperature gas in the helically coiled tube.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US00342670A 1972-03-27 1973-03-19 Process and waste-heat boiler for cooling soot-containing synthesis gas Expired - Lifetime US3788281A (en)

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JP (1) JPS4947701A (enrdf_load_stackoverflow)
BE (1) BE796966A (enrdf_load_stackoverflow)
CH (1) CH561878A5 (enrdf_load_stackoverflow)
DE (1) DE2315047A1 (enrdf_load_stackoverflow)
FR (1) FR2177968B1 (enrdf_load_stackoverflow)
IT (1) IT981625B (enrdf_load_stackoverflow)
NL (1) NL7204070A (enrdf_load_stackoverflow)
NO (1) NO139455C (enrdf_load_stackoverflow)
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US4384160A (en) * 1980-10-22 1983-05-17 Phillips Petroleum Company Prequench of cracked stream to avoid deposits in downstream heat exchangers
WO1986003278A1 (en) * 1984-11-29 1986-06-05 Vapor Corporation Boiler having improved heat absorption
US4701185A (en) * 1982-05-10 1987-10-20 Shell Oil Company Process for separating fly-ash
US5568835A (en) * 1995-07-25 1996-10-29 The Babcock & Wilcox Company Concentric heat exchanger having hydraulically expanded flow channels
WO2005024329A1 (de) * 2003-08-07 2005-03-17 Schierjott Guenter Vorrichtung zur temperierung von fluidströmen
WO2005021122A3 (en) * 2003-08-28 2005-06-09 John E Okonski Sr High-efficiency enhanced boiler
US20060086206A1 (en) * 2004-10-09 2006-04-27 Hartwig Kaschub Method for obtaining pure copper
WO2007014618A1 (de) * 2005-07-29 2007-02-08 Linde Aktiengesellschaft Gewickelter wärmetauscher mit verschiedenen rohrdurchmessern
WO2007039199A1 (en) * 2005-09-30 2007-04-12 Eni S.P.A. Heat exchanger
US20070199688A1 (en) * 2006-02-27 2007-08-30 Okonski John E Sr High-efficiency enhanced boiler
WO2007055930A3 (en) * 2005-11-03 2007-12-06 Babcock & Wilcox Co Radiant syngas cooler
US20070283907A1 (en) * 2006-05-16 2007-12-13 Brinkmann Juergen Boiler for making super heated steam and its use
US20080142609A1 (en) * 2005-02-16 2008-06-19 Werner Lissner Domestic Water Heater and Method For Heating Water For Domestic Use
US20090199474A1 (en) * 2008-02-13 2009-08-13 Thomas Frederick Leininger Apparatus for cooling and scrubbing a flow of syngas and method of assembling
US20090301130A1 (en) * 2006-07-20 2009-12-10 Manfred Schonberger Mass transfer or heat-exchange column with mass transfer of heat-exchange areas, such as tube bundles, that are arranged above one another
US20100005833A1 (en) * 2005-07-29 2010-01-14 Linde Aktiengesellschaft Coiled heat exchanger having different materials
US20110108238A1 (en) * 2006-02-27 2011-05-12 Okonski Jr John E High-efficiency enhanced boiler
US20110155356A1 (en) * 2009-12-31 2011-06-30 Hyoung Suk Woo Water circulation system associated with refrigerant cycle
US20120114474A1 (en) * 2005-10-11 2012-05-10 Elsner Steven C Fin array for use in a centrifugal fan
CN102829326A (zh) * 2012-09-12 2012-12-19 镇海石化建安工程有限公司 一种蒸汽加热水浴式汽化器
US9132401B2 (en) * 2008-07-16 2015-09-15 Kellog Brown & Root Llc Systems and methods for producing substitute natural gas
US9863434B2 (en) 2005-10-11 2018-01-09 Steven C. Elsner Fins, tubes, and structures for fin array for use in a centrifugal fan
US20200095122A1 (en) * 2018-09-21 2020-03-26 Nant Holdings Ip, Llc Molten salt heat exchange system for continuous solar production of h2
US20200248087A1 (en) * 2019-02-05 2020-08-06 Saudi Arabian Oil Company Producing Synthetic Gas
RU2770261C2 (ru) * 2020-07-13 2022-04-14 Акционерное общество "Опытное Конструкторское Бюро Машиностроения имени И.И. Африкантова" (АО "ОКБМ Африкантов") Теплообменник

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967515A (en) * 1956-12-21 1961-01-10 Shell Oil Co Waste-heat boiler
CA634687A (en) * 1962-01-16 Shell Oil Company Helical-tube waste-heat boiler
US3662717A (en) * 1970-01-21 1972-05-16 Shell Oil Co Waste-heat boiler
US3712371A (en) * 1969-11-11 1973-01-23 Shell Oil Co Method for heat recovery from synthesis gas

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1179635A (fr) * 1956-07-20 1959-05-27 Bataafsche Petroleum Dispositif de préparation de mélanges de gaz
DE1751090A1 (de) * 1968-04-02 1971-10-07 Basf Ag Verfahren zur Kuehlung von Spalt- oder Synthesegas und Waermeaustauscher zur Durchfuehrung des Verfahrens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA634687A (en) * 1962-01-16 Shell Oil Company Helical-tube waste-heat boiler
US2967515A (en) * 1956-12-21 1961-01-10 Shell Oil Co Waste-heat boiler
US3712371A (en) * 1969-11-11 1973-01-23 Shell Oil Co Method for heat recovery from synthesis gas
US3662717A (en) * 1970-01-21 1972-05-16 Shell Oil Co Waste-heat boiler

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384160A (en) * 1980-10-22 1983-05-17 Phillips Petroleum Company Prequench of cracked stream to avoid deposits in downstream heat exchangers
US4701185A (en) * 1982-05-10 1987-10-20 Shell Oil Company Process for separating fly-ash
WO1986003278A1 (en) * 1984-11-29 1986-06-05 Vapor Corporation Boiler having improved heat absorption
US4621592A (en) * 1984-11-29 1986-11-11 Vapor Corporation Boiler having improved heat absorption
US5568835A (en) * 1995-07-25 1996-10-29 The Babcock & Wilcox Company Concentric heat exchanger having hydraulically expanded flow channels
WO2005024329A1 (de) * 2003-08-07 2005-03-17 Schierjott Guenter Vorrichtung zur temperierung von fluidströmen
WO2005021122A3 (en) * 2003-08-28 2005-06-09 John E Okonski Sr High-efficiency enhanced boiler
US20060086206A1 (en) * 2004-10-09 2006-04-27 Hartwig Kaschub Method for obtaining pure copper
AU2005220180B2 (en) * 2004-10-09 2010-04-01 Glencore Technology Pty Limited Method for obtaining pure copper
US7625423B2 (en) * 2004-10-09 2009-12-01 Xstrata Technology Pty Ltd. Method for obtaining pure copper
US20080142609A1 (en) * 2005-02-16 2008-06-19 Werner Lissner Domestic Water Heater and Method For Heating Water For Domestic Use
US20080271880A1 (en) * 2005-07-29 2008-11-06 Linde Aktiengesellschaft Coiled Heat Exchanger Having Different Tube Diameters
US20100005833A1 (en) * 2005-07-29 2010-01-14 Linde Aktiengesellschaft Coiled heat exchanger having different materials
AU2006275171B2 (en) * 2005-07-29 2011-05-19 Linde Aktiengesellschaft Coiled heat exchanger having different tube diameters
RU2402733C2 (ru) * 2005-07-29 2010-10-27 Линде Акциенгезельшафт Змеевиковый теплообменник с трубами разного диаметра
CN101233378B (zh) * 2005-07-29 2010-08-04 林德股份公司 具有不同管径的缠绕式换热器
US8297074B2 (en) * 2005-07-29 2012-10-30 Linde Aktiengesellschaft Coiled heat exchanger having different materials
WO2007014618A1 (de) * 2005-07-29 2007-02-08 Linde Aktiengesellschaft Gewickelter wärmetauscher mit verschiedenen rohrdurchmessern
NO339343B1 (no) * 2005-09-30 2016-11-28 Eni Spa Varmeveksler
US20080202734A1 (en) * 2005-09-30 2008-08-28 Eni S.P.A. Heat Exchanger
WO2007039199A1 (en) * 2005-09-30 2007-04-12 Eni S.P.A. Heat exchanger
CN101278165B (zh) * 2005-09-30 2010-05-19 艾尼股份公司 换热器
EA011836B1 (ru) * 2005-09-30 2009-06-30 Эни С.П.А. Теплообменник
US10436219B2 (en) 2005-10-11 2019-10-08 Steven C. Elsner Fins, tubes, and structures for fin array for use in a centrifugal fan
US9863434B2 (en) 2005-10-11 2018-01-09 Steven C. Elsner Fins, tubes, and structures for fin array for use in a centrifugal fan
US9243650B2 (en) * 2005-10-11 2016-01-26 Steven C. Elsner Fin array for use in a centrifugal fan
US20120114474A1 (en) * 2005-10-11 2012-05-10 Elsner Steven C Fin array for use in a centrifugal fan
WO2007055930A3 (en) * 2005-11-03 2007-12-06 Babcock & Wilcox Co Radiant syngas cooler
CN101351622B (zh) * 2005-11-03 2014-04-23 巴布考克及威尔考克斯公司 辐射式合成气体冷却器
US9523538B2 (en) 2006-02-27 2016-12-20 John E. Okonski, Jr. High-efficiency enhanced boiler
US7413004B2 (en) 2006-02-27 2008-08-19 Okonski Sr John E High-efficiency enhanced boiler
US20110108238A1 (en) * 2006-02-27 2011-05-12 Okonski Jr John E High-efficiency enhanced boiler
US20070199688A1 (en) * 2006-02-27 2007-08-30 Okonski John E Sr High-efficiency enhanced boiler
US20070283907A1 (en) * 2006-05-16 2007-12-13 Brinkmann Juergen Boiler for making super heated steam and its use
US7552701B2 (en) * 2006-05-16 2009-06-30 Shell Oil Company Boiler for making super heated steam and its use
US20090301130A1 (en) * 2006-07-20 2009-12-10 Manfred Schonberger Mass transfer or heat-exchange column with mass transfer of heat-exchange areas, such as tube bundles, that are arranged above one another
US8051901B2 (en) * 2006-07-20 2011-11-08 Linde Aktiengesellschaft Mass transfer or heat-exchange column with mass transfer or heat-exchange areas, such as tube bundles, that are arranged above one another
US7846226B2 (en) 2008-02-13 2010-12-07 General Electric Company Apparatus for cooling and scrubbing a flow of syngas and method of assembling
US20090199474A1 (en) * 2008-02-13 2009-08-13 Thomas Frederick Leininger Apparatus for cooling and scrubbing a flow of syngas and method of assembling
US9132401B2 (en) * 2008-07-16 2015-09-15 Kellog Brown & Root Llc Systems and methods for producing substitute natural gas
US20110155356A1 (en) * 2009-12-31 2011-06-30 Hyoung Suk Woo Water circulation system associated with refrigerant cycle
US8800313B2 (en) * 2009-12-31 2014-08-12 Lg Electronics Inc. Water circulation system associated with refrigerant cycle
CN102829326A (zh) * 2012-09-12 2012-12-19 镇海石化建安工程有限公司 一种蒸汽加热水浴式汽化器
CN102829326B (zh) * 2012-09-12 2014-07-23 镇海石化建安工程有限公司 一种蒸汽加热水浴式汽化器
US20200095122A1 (en) * 2018-09-21 2020-03-26 Nant Holdings Ip, Llc Molten salt heat exchange system for continuous solar production of h2
US20200248087A1 (en) * 2019-02-05 2020-08-06 Saudi Arabian Oil Company Producing Synthetic Gas
US11807822B2 (en) * 2019-02-05 2023-11-07 Saudi Arabian Oil Company Producing synthetic gas
RU2770261C2 (ru) * 2020-07-13 2022-04-14 Акционерное общество "Опытное Конструкторское Бюро Машиностроения имени И.И. Африкантова" (АО "ОКБМ Африкантов") Теплообменник

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IT981625B (it) 1974-10-10
BE796966A (nl) 1973-09-19
FR2177968A1 (enrdf_load_stackoverflow) 1973-11-09
NL7204070A (enrdf_load_stackoverflow) 1973-10-01
NO139455C (no) 1979-03-14
SE387167B (sv) 1976-08-30
CH561878A5 (enrdf_load_stackoverflow) 1975-05-15
FR2177968B1 (enrdf_load_stackoverflow) 1976-06-11
DE2315047A1 (de) 1973-10-11
NO139455B (no) 1978-12-04
JPS4947701A (enrdf_load_stackoverflow) 1974-05-09

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