GB1146390A - Removal of sulfur oxides from gases with calcium phosphates and phosphate rock - Google Patents

Removal of sulfur oxides from gases with calcium phosphates and phosphate rock

Info

Publication number
GB1146390A
GB1146390A GB5502967A GB5502967A GB1146390A GB 1146390 A GB1146390 A GB 1146390A GB 5502967 A GB5502967 A GB 5502967A GB 5502967 A GB5502967 A GB 5502967A GB 1146390 A GB1146390 A GB 1146390A
Authority
GB
United Kingdom
Prior art keywords
flue gas
catalyst
temp
phosphate
oxidation
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
GB5502967A
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.)
Department OF INTERIOR
Original Assignee
Department OF INTERIOR
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 Department OF INTERIOR filed Critical Department OF INTERIOR
Publication of GB1146390A publication Critical patent/GB1146390A/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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • 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
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B01D53/8609—Sulfur oxides
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
    • C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
    • C05B11/14—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using wet gaseous acids

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

1,146,390. Extracting sulphur oxides from gases. UNITED STATES -OF AMERICA, DEPARTMENT OF INTERIOR. 4 Dec., 1967 [18 Jan., 1967], No. 55029/67. 'Heading C1A. SO 2 is removed from hot flue gas emanating from combustion of S-bearing fuels, e.g. coal, fuel oil, :by contacting the flue gas with an oxidation catalyst while the flue gas is at a temp. of at least the SO 2 oxidation kindling temp. of the catalyst thus producing flue gas having substantially all of the SO 2 converted to SO 3 , contacting the oxidized flue gas with a Ca 3 (PO 4 ) 2 material to produce a fertilizer material and flue gas substantially free of S oxides and separating the fertilizer material from the final flue gas. The flue gas may contain less than 0À35% dry wt of SO 2 prior to the catalytic oxidation and the phosphate bearing material may be employed as an aq. slurry during the contacting step whereby the temp. of the gas prior to passing through the contact zone would first Shave to be lowered below the B.P. of the water carrier. The material may be maintained as a shallow fluidized or fixed bed or cascading solids or any other system with low or moderate pressure. The oxidation catalyst may be V 2 O 5 with K 2 O promoter, iron oxide or Pt catalyst. The calcium phosphate material may be pure Ca 3 (PO 4 ) 2 , phosphate rock or phosphate slime. The SO 2 kindling temp. of the catalyst may be 400-500‹ C. for V 2 O 5 .
GB5502967A 1967-01-18 1967-12-04 Removal of sulfur oxides from gases with calcium phosphates and phosphate rock Expired GB1146390A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61073367A 1967-01-18 1967-01-18

Publications (1)

Publication Number Publication Date
GB1146390A true GB1146390A (en) 1969-03-26

Family

ID=24446205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5502967A Expired GB1146390A (en) 1967-01-18 1967-12-04 Removal of sulfur oxides from gases with calcium phosphates and phosphate rock

Country Status (6)

Country Link
BE (1) BE709513A (en)
DE (1) DE1669313A1 (en)
DK (1) DK120203B (en)
FR (1) FR1554046A (en)
GB (1) GB1146390A (en)
NL (1) NL6800289A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014005150A1 (en) * 2014-04-08 2015-10-08 Man Diesel & Turbo Se Exhaust after-treatment system and exhaust aftertreatment process
CN107537316A (en) * 2017-09-19 2018-01-05 中国大唐集团科学技术研究院有限公司华中分公司 Flue desulfurization system and method, smoke catalytic reaction unit

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2726892A1 (en) * 1977-06-15 1979-01-04 Heinz Hoelter Purificn. of waste gas from power stations - where catalyst oxidises sulphur and nitrogen cpds. in gas to simplify their adsorption
JPS5824174B2 (en) * 1977-08-31 1983-05-19 三菱重工業株式会社 Exhaust gas treatment method
DE3712724A1 (en) * 1987-04-15 1988-11-03 Metallgesellschaft Ag METHOD FOR DRYING HUMID, GRANULATED, AMMONIUM OR ALKALINE CONTAINERS
CN109675426A (en) * 2018-12-06 2019-04-26 昆明理工大学 It is a kind of using ground phosphate rock and mud phosphorus to the system and method for flue gas desulfurization and denitrification and by-product nitrophosphate fertilizer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014005150A1 (en) * 2014-04-08 2015-10-08 Man Diesel & Turbo Se Exhaust after-treatment system and exhaust aftertreatment process
CN107537316A (en) * 2017-09-19 2018-01-05 中国大唐集团科学技术研究院有限公司华中分公司 Flue desulfurization system and method, smoke catalytic reaction unit

Also Published As

Publication number Publication date
FR1554046A (en) 1969-01-17
BE709513A (en) 1968-05-30
DE1669313A1 (en) 1971-02-25
NL6800289A (en) 1968-07-19
DK120203B (en) 1971-04-26

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