UST103501I4 - Dewatering of flue gas desulfurization sulfite solids - Google Patents

Dewatering of flue gas desulfurization sulfite solids Download PDF

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Publication number
UST103501I4
UST103501I4 US06/444,127 US44412782A UST103501I4 US T103501 I4 UST103501 I4 US T103501I4 US 44412782 A US44412782 A US 44412782A US T103501 I4 UST103501 I4 US T103501I4
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US
United States
Prior art keywords
dewatering
flue gas
sulfite
gas desulfurization
sludges
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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.)
Pending
Application number
US06/444,127
Inventor
Forrest C. Garrison
William L. Wells
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.)
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Publication date
Application filed filed Critical
Priority to US06/444,127 priority Critical patent/UST103501I4/en
Priority to US06/508,969 priority patent/US4454101A/en
Application granted granted Critical
Publication of UST103501I4 publication Critical patent/UST103501I4/en
Pending legal-status Critical Current

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    • 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
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
  • Treatment Of Sludge (AREA)

Abstract

The dewatering capabilities of sulfite sludges from flue gas desulfurization facilities are substantially improved by the addition of relatively small amounts of sodium thiosulfate additive, or additives derived from or related to sodium thiosulfate, into the scrubber slurry liquor. As an added embellishment, these predetermined amounts of said additives are greater than those required for effecting substantial scale inhibition in the scrubber innards. Subsequently, conventional dewatering of the sulfite sludge to about 80 to 90 percent solids directly produces a waste product disposable in both an economically and an environmentally acceptable manner, in that the thixotropic characteristics of such sludges which are associated therewith upwards to about 70-percent solids therein are completely eliminated.
US06/444,127 1982-11-24 1982-11-24 Dewatering of flue gas desulfurization sulfite solids Pending UST103501I4 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US06/444,127 UST103501I4 (en) 1982-11-24 1982-11-24 Dewatering of flue gas desulfurization sulfite solids
US06/508,969 US4454101A (en) 1982-11-24 1983-06-29 Dewatering of flue gas desulfurization sulfite solids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/444,127 UST103501I4 (en) 1982-11-24 1982-11-24 Dewatering of flue gas desulfurization sulfite solids

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US06/508,969 Continuation US4454101A (en) 1982-11-24 1983-06-29 Dewatering of flue gas desulfurization sulfite solids

Publications (1)

Publication Number Publication Date
UST103501I4 true UST103501I4 (en) 1983-10-04

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ID=23763615

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/444,127 Pending UST103501I4 (en) 1982-11-24 1982-11-24 Dewatering of flue gas desulfurization sulfite solids

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US (1) UST103501I4 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180251375A1 (en) * 2015-12-30 2018-09-06 Tessenderlo Kerley, Inc. Sulfur dioxide scrubbing system and process for producing potassium products

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180251375A1 (en) * 2015-12-30 2018-09-06 Tessenderlo Kerley, Inc. Sulfur dioxide scrubbing system and process for producing potassium products
US10472238B2 (en) * 2015-12-30 2019-11-12 Tessenderio Kerley, Inc. Sulfur dioxide scrubbing system and process for producing potassium products

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