FR2007886A1 - Sulphuric acid production - Google Patents

Sulphuric acid production

Info

Publication number
FR2007886A1
FR2007886A1 FR6914204A FR6914204A FR2007886A1 FR 2007886 A1 FR2007886 A1 FR 2007886A1 FR 6914204 A FR6914204 A FR 6914204A FR 6914204 A FR6914204 A FR 6914204A FR 2007886 A1 FR2007886 A1 FR 2007886A1
Authority
FR
France
Prior art keywords
stage
pref
gas turbine
steps
sulphuric acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR6914204A
Other languages
French (fr)
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.)
Humphreys and Glasgow Ltd
Original Assignee
Humphreys and Glasgow 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 Humphreys and Glasgow Ltd filed Critical Humphreys and Glasgow Ltd
Publication of FR2007886A1 publication Critical patent/FR2007886A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/762—High pressure processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/765—Multi-stage SO3-conversion
    • C01B17/7655—Multi-stage SO3-conversion with intermediate absorption
    • 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
    • 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

Abstract

Sulphuric acid production.. F6A. Comprises the following stages: (a) roasting sulphur or metal sulphides, such as iron pyrites, with an excess of air or oxygen to give SO2, (b) passing the resulting gases containing SO2 and excess air or O2 to a catalyst to convert SO2 to SO3, (c) absorption of the SO3 in H2SO4 and (d) expanding the gaseous effluents from (c) in a gas turbine to recover energy from the process. Steps (a), (b) and (c) are conducted at superatmospheric pressure, pref. 5-15 bars. Pref. gas leaving stage (a) is cooled by heat exchange or expansion in a gas turbine before passing to (b). Stage (b) may be conducted in two or more steps between which heat is recovered. One or more absorption stages may be interposed between two conversion steps. Gases leaving stage (c) may be used to extract heat from the effluent gases from stage (b) and are pref. burnt before passing to the gas turbine.
FR6914204A 1968-05-06 1969-05-05 Sulphuric acid production Withdrawn FR2007886A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2137568 1968-05-06

Publications (1)

Publication Number Publication Date
FR2007886A1 true FR2007886A1 (en) 1970-01-16

Family

ID=10161867

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6914204A Withdrawn FR2007886A1 (en) 1968-05-06 1969-05-05 Sulphuric acid production

Country Status (2)

Country Link
DE (1) DE1922788A1 (en)
FR (1) FR2007886A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR226384A1 (en) * 1980-11-28 1982-06-30 Chemithon Corp METHOD FOR PRODUCING GAS CONSISTING OF SULFUR OXIDE AND AIR
SE8404586L (en) * 1984-09-13 1986-03-14 Orvar Elmqvist CHEMICAL APPLICATION

Also Published As

Publication number Publication date
DE1922788A1 (en) 1969-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse