EP0060354A1 - Verfahren zum Entfernen von Schwefel und Asche aus Kohle - Google Patents

Verfahren zum Entfernen von Schwefel und Asche aus Kohle Download PDF

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Publication number
EP0060354A1
EP0060354A1 EP19810301043 EP81301043A EP0060354A1 EP 0060354 A1 EP0060354 A1 EP 0060354A1 EP 19810301043 EP19810301043 EP 19810301043 EP 81301043 A EP81301043 A EP 81301043A EP 0060354 A1 EP0060354 A1 EP 0060354A1
Authority
EP
European Patent Office
Prior art keywords
coal
mixture
ash
sulphur
water
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.)
Granted
Application number
EP19810301043
Other languages
English (en)
French (fr)
Other versions
EP0060354B1 (de
Inventor
George E. Brown, Jr.
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.)
Feldkamp Joseph F Jr
Original Assignee
Feldkamp Joseph F Jr
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8188236&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0060354(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Feldkamp Joseph F Jr filed Critical Feldkamp Joseph F Jr
Priority to EP19810301043 priority Critical patent/EP0060354B1/de
Priority to DE8181301043T priority patent/DE3171535D1/de
Publication of EP0060354A1 publication Critical patent/EP0060354A1/de
Application granted granted Critical
Publication of EP0060354B1 publication Critical patent/EP0060354B1/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/02—Treating solid fuels to improve their combustion by chemical means

Definitions

  • the present invention is applicable to high sulfur, high ash refuse or virgin coal.
  • coal, crushed to about 1/4 by 0 size is first treated with spent pickle liquor. Thereafter it is subjected to a strong acidic oxidizing agent. More particularly, the acidified coal mixture is treated with a mixture of chlorine gas dissolved in water. Thereafter coal and ash are separated through the use of water and gravity. Following this, the acid solution remaining is treated with lime and the precipitate which contains various sulfur compounds is discarded. These sulfur compounds exist in such a state that they are not injurious to our environment when discarded and in fact have a beneficial effect on dead lakes.
  • only a minor amount of water is added to the pulverized coal, preferably in the form of steam, and the mixture is treated with chlorine gas.
  • the amount of spent pickle liquor mixed with the pulverized coal is somewhat dependent on the sulfur content of the coal. Usually though 2% pickle liquor based on the weight of the coal is sufficient.
  • the ash and coal that are present can be mechanically separated from each other and from the acid solution.
  • One convenient way for doing so consists of introducing the entire mixture into a conically shaped separator of conventional design, where provision is made at the bottom for introducing water. At the top a wier is provided such that material at the surface of the mixture will be transferred out of the separator and into a discharge conduit. The denser, heavier coal particles fall to the bottom and are discharged through an outlet. The coal is then dried and preferably pelletized.
  • a minor amount of water preferably in the form of steam.
  • the water added is preferably an amount equal to about 10-20% by weight of the coal.
  • chlorine gas is added to the mixture.
  • the chlorine gas is not dissolved in water nor is pickle liquor added to the mixture.
  • the amount of water required is reduced.
  • the mixture after treatment with the chlorine gas is subjected to the separation step and thereafter to the neutralization step.
EP19810301043 1981-03-12 1981-03-12 Verfahren zum Entfernen von Schwefel und Asche aus Kohle Expired EP0060354B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19810301043 EP0060354B1 (de) 1981-03-12 1981-03-12 Verfahren zum Entfernen von Schwefel und Asche aus Kohle
DE8181301043T DE3171535D1 (en) 1981-03-12 1981-03-12 Method of treating coal to remove sulphur and ash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19810301043 EP0060354B1 (de) 1981-03-12 1981-03-12 Verfahren zum Entfernen von Schwefel und Asche aus Kohle

Publications (2)

Publication Number Publication Date
EP0060354A1 true EP0060354A1 (de) 1982-09-22
EP0060354B1 EP0060354B1 (de) 1985-07-31

Family

ID=8188236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810301043 Expired EP0060354B1 (de) 1981-03-12 1981-03-12 Verfahren zum Entfernen von Schwefel und Asche aus Kohle

Country Status (2)

Country Link
EP (1) EP0060354B1 (de)
DE (1) DE3171535D1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497464B (zh) * 2009-01-19 2011-01-05 中国科学院山西煤炭化学研究所 一种处理酸洗废液或电镀废液的方法
US20110030592A1 (en) * 2000-06-26 2011-02-10 Ada Environmental Solutions, Llc Additives for mercury oxidation in coal-fired power plants
CN102295969A (zh) * 2011-07-27 2011-12-28 北京科技大学 一种除去率高、用时少的同时脱除高硫煤中硫和砷的方法
US9951287B2 (en) 2000-06-26 2018-04-24 ADA-ES, Inc. Low sulfur coal additive for improved furnace operation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE670964C (de) * 1933-09-15 1939-01-28 Erdoel Akt Ges Deutsche Verfahren zum Entaschen von Koks mineralischer Kohlen
US3998604A (en) * 1974-09-23 1976-12-21 International Oils Exploration N.L. Demineralization of brown coal
US4006080A (en) * 1974-10-12 1977-02-01 Tioxide Group Limited Process for the treatment of acidic waste liquid containing dissolved salts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE670964C (de) * 1933-09-15 1939-01-28 Erdoel Akt Ges Deutsche Verfahren zum Entaschen von Koks mineralischer Kohlen
US3998604A (en) * 1974-09-23 1976-12-21 International Oils Exploration N.L. Demineralization of brown coal
US4006080A (en) * 1974-10-12 1977-02-01 Tioxide Group Limited Process for the treatment of acidic waste liquid containing dissolved salts

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110030592A1 (en) * 2000-06-26 2011-02-10 Ada Environmental Solutions, Llc Additives for mercury oxidation in coal-fired power plants
US8439989B2 (en) * 2000-06-26 2013-05-14 ADA-ES, Inc. Additives for mercury oxidation in coal-fired power plants
US9951287B2 (en) 2000-06-26 2018-04-24 ADA-ES, Inc. Low sulfur coal additive for improved furnace operation
US11168274B2 (en) 2000-06-26 2021-11-09 ADA-ES, Inc. Low sulfur coal additive for improved furnace operation
CN101497464B (zh) * 2009-01-19 2011-01-05 中国科学院山西煤炭化学研究所 一种处理酸洗废液或电镀废液的方法
CN102295969A (zh) * 2011-07-27 2011-12-28 北京科技大学 一种除去率高、用时少的同时脱除高硫煤中硫和砷的方法

Also Published As

Publication number Publication date
EP0060354B1 (de) 1985-07-31
DE3171535D1 (en) 1985-09-05

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