GB1469340A - Ammonia flue gas desulphurization process making elemental sulphur - Google Patents

Ammonia flue gas desulphurization process making elemental sulphur

Info

Publication number
GB1469340A
GB1469340A GB1981774A GB1981774A GB1469340A GB 1469340 A GB1469340 A GB 1469340A GB 1981774 A GB1981774 A GB 1981774A GB 1981774 A GB1981774 A GB 1981774A GB 1469340 A GB1469340 A GB 1469340A
Authority
GB
United Kingdom
Prior art keywords
sulphur
aqueous
gas stream
flue gas
elemental sulphur
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
Application number
GB1981774A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to GB1981774A priority Critical patent/GB1469340A/en
Publication of GB1469340A publication Critical patent/GB1469340A/en
Expired legal-status Critical Current

Links

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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
    • 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
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet processes
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

1469340 Removal of sulphur oxides and nitrogen oxides from gases; sulphur EXXON RESEARCH & ENG CO 6 May 1974 19817/74 Heading C1A Sulphur oxides and nitrogen oxides are removed from a gas stream by a process which comprises (a) contacting said gas stream in a scrubbing zone with an aqueous solution containing ammonium thiosulphate with ammonium sulphite and/or ammonium hydroxide, (b) withdrawing said gas stream, (c) withdrawing the aqueous scrubber effluent, (d) reacting at least a portion of said scrubber effluent solution with hydrogen sulphide in an aqueous liquid phase at a pH of at least 4.5 in a reaction zone to produce elemental sulphur, (e) separating said sulphur and (f) returning at least a portion of said aqueous phase to said scrubbing zone. Another portion of effluent (c) may be reacted with ammonia and H 2 S or S to prepare fresh scrubber solution for recycle. The temperature in the reaction zone may be such as to obtain the S in liquid form.
GB1981774A 1974-05-06 1974-05-06 Ammonia flue gas desulphurization process making elemental sulphur Expired GB1469340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1981774A GB1469340A (en) 1974-05-06 1974-05-06 Ammonia flue gas desulphurization process making elemental sulphur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1981774A GB1469340A (en) 1974-05-06 1974-05-06 Ammonia flue gas desulphurization process making elemental sulphur

Publications (1)

Publication Number Publication Date
GB1469340A true GB1469340A (en) 1977-04-06

Family

ID=10135729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1981774A Expired GB1469340A (en) 1974-05-06 1974-05-06 Ammonia flue gas desulphurization process making elemental sulphur

Country Status (1)

Country Link
GB (1) GB1469340A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee