US3552122A - Process for the utilization of the exhausted gases from an ethylene oxide synthesis reactor - Google Patents

Process for the utilization of the exhausted gases from an ethylene oxide synthesis reactor Download PDF

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Publication number
US3552122A
US3552122A US750644A US3552122DA US3552122A US 3552122 A US3552122 A US 3552122A US 750644 A US750644 A US 750644A US 3552122D A US3552122D A US 3552122DA US 3552122 A US3552122 A US 3552122A
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US
United States
Prior art keywords
ethylene oxide
exhaust gases
synthesis reactor
boiler
turbine
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.)
Expired - Lifetime
Application number
US750644A
Other languages
English (en)
Inventor
Mario Parmegiani
Oreste Bellofatto
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Application granted granted Critical
Publication of US3552122A publication Critical patent/US3552122A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/067—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion heat coming from a gasification or pyrolysis process, e.g. coal gasification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/08—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with working fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

Definitions

  • the exhaust gases are passed in heat exchange relationship with boiler flue gases which are used to drive a gas turbine which is coupled to the drive shaft of an air compressor.
  • the exhaust gases discharging from the turbine are then bumed in the steam boiler.
  • Steam generated in the boiler is used to drive a steam turbine which is also coupled to the drive shaft of the air compressor.
  • This invention relates to improvements applied to the recovering of the energy content of the exhaust gases flowing from the synthesis reactor of the ethylene oxide.
  • the energy recovery of the exhaust gases obtained by means of the production of the ethylene oxide occurs substantially in two phases in the first of which mechanical energy is recovered by expansion while in the second one thermal energy contained in the expanded gases is recovered for combustion of ethylene and the energy recovery is carried out by means of steam production.
  • the gas temperature at the heat exchanger outlet 2 is regulated by means of a device 9 situated upon one of the boiler outlets through which burnt gases are coming out.
  • the temperature stabilization is achieved by regulating the letting in of the auxiliary fuel into the boiler burner.
  • the reactor 11 for ethylene oxide production is arranged to receive ethylene from an ethylene feeding line 10.
  • the output of the ethylene oxide reactor 11 is delivered to a separator 13 which passes ethylene oxide through output line 12 and delivers the unreacted ethylene to line 1 of the energy recovering apparatus.
  • a water line 14 is arranged to supply water to the separator 13.
  • the unbroken line shows the steam path
  • the line with dashes and points shows exhaust gases path from the ethylene oxide synthesis reactor
  • the line with alternated short and long dashes shows the process air path
  • the line with equal dashes shows the water path.
  • the exhaust gas of ethylene oxide synthesis reactor are at a pressure of from 15 to 25 atmospheres and at a temperature of from 10 to 50 0; they are preheated in the heat exchanger 2 at a temperature of from 350 to 460 0., namely lower than the explosion limit of the air-ethylene mixture.
  • the steam obtained in the boiler may be either envoyed, as above described into a steam turbine to recover from it mechanical energy or may be utilized for different purposes.
  • the auxiliary fuel may be of various kind and may be utilized also a heavy fuel oil since the combustion products are not directly utilized in a turbine but after that the transferring heat in the heat exchanger 2 occurs said burnt gases are blown oif to the atmosphere.
  • a process for recovering energy from the exhaust gases generated in a process for synthesizing ethylene oxide by catalytic oxidation of ethylene with air for use within said ethylene oxide synthesizing process comprising the steps of:

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US750644A 1967-08-08 1968-08-06 Process for the utilization of the exhausted gases from an ethylene oxide synthesis reactor Expired - Lifetime US3552122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1932067 1967-08-08

Publications (1)

Publication Number Publication Date
US3552122A true US3552122A (en) 1971-01-05

Family

ID=11156705

Family Applications (1)

Application Number Title Priority Date Filing Date
US750644A Expired - Lifetime US3552122A (en) 1967-08-08 1968-08-06 Process for the utilization of the exhausted gases from an ethylene oxide synthesis reactor

Country Status (9)

Country Link
US (1) US3552122A (de)
JP (1) JPS5132604B1 (de)
BE (1) BE719161A (de)
CH (1) CH509301A (de)
DE (1) DE1793095C3 (de)
GB (1) GB1175500A (de)
LU (1) LU56620A1 (de)
NL (1) NL6811142A (de)
PL (1) PL87055B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704587A (en) * 1970-02-07 1972-12-05 Steinkohlen Elektrizitaet Ag Control system for a gas-turbine installation
US3704586A (en) * 1970-02-07 1972-12-05 Steinkohlen Elektrizitaet Ag Starting system for a gas-turbine installation
US3798898A (en) * 1970-10-22 1974-03-26 J Delahaye Gas turbine prime mover
WO2000017177A1 (de) * 1998-09-23 2000-03-30 Basf Aktiengesellschaft Verfahren zur herstellung von ethylenoxid durch direktoxidation von ethylen mit luft oder sauerstoff
WO2008031810A2 (de) * 2006-09-15 2008-03-20 Siemens Aktiengesellschaft Verdichtungsanlage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418802A1 (fr) * 1978-03-02 1979-09-28 Charbonnages Ste Chimique Procede de fabrication du polyethylene a faible consommation d'energie
EP0753652A1 (de) * 1995-07-10 1997-01-15 N.V. Kema Synthese von Ethene
GB0808200D0 (en) * 2008-05-06 2008-06-11 Invista Technologies Srl Power recovery

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704587A (en) * 1970-02-07 1972-12-05 Steinkohlen Elektrizitaet Ag Control system for a gas-turbine installation
US3704586A (en) * 1970-02-07 1972-12-05 Steinkohlen Elektrizitaet Ag Starting system for a gas-turbine installation
US3798898A (en) * 1970-10-22 1974-03-26 J Delahaye Gas turbine prime mover
WO2000017177A1 (de) * 1998-09-23 2000-03-30 Basf Aktiengesellschaft Verfahren zur herstellung von ethylenoxid durch direktoxidation von ethylen mit luft oder sauerstoff
US6397599B1 (en) 1998-09-23 2002-06-04 Basf Aktiengesellschaft Method for producing ethylene oxide by directly oxidizing ethylene with air or oxygen
WO2008031810A2 (de) * 2006-09-15 2008-03-20 Siemens Aktiengesellschaft Verdichtungsanlage
EP1903189A1 (de) * 2006-09-15 2008-03-26 Siemens Aktiengesellschaft LNG-Anlage in Kombination mit Gas- und Dampfturbinen
WO2008031810A3 (de) * 2006-09-15 2008-09-25 Siemens Ag Verdichtungsanlage

Also Published As

Publication number Publication date
CH509301A (fr) 1971-06-30
BE719161A (de) 1969-01-16
GB1175500A (en) 1969-12-23
JPS5132604B1 (de) 1976-09-14
LU56620A1 (de) 1968-11-14
DE1793095A1 (de) 1973-05-30
DE1793095C3 (de) 1978-04-27
NL6811142A (de) 1969-02-11
DE1793095B2 (de) 1977-08-25
PL87055B1 (de) 1976-06-30

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