EP0222730A3 - Process for drying brown coal with a high water content - Google Patents

Process for drying brown coal with a high water content Download PDF

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Publication number
EP0222730A3
EP0222730A3 EP86890287A EP86890287A EP0222730A3 EP 0222730 A3 EP0222730 A3 EP 0222730A3 EP 86890287 A EP86890287 A EP 86890287A EP 86890287 A EP86890287 A EP 86890287A EP 0222730 A3 EP0222730 A3 EP 0222730A3
Authority
EP
European Patent Office
Prior art keywords
fine grain
water
drying
brown coal
sand filter
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Withdrawn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
EP86890287A
Other languages
German (de)
French (fr)
Other versions
EP0222730A2 (en
Inventor
Michael Dipl.-Ing. Schweizer
Jaroslav Dipl.-Ing. Dr. Fohl
Gero Tessmer
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0222730A2 publication Critical patent/EP0222730A2/en
Publication of EP0222730A3 publication Critical patent/EP0222730A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10F—DRYING OR WORKING-UP OF PEAT
    • C10F5/00—Drying or de-watering peat

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Zur Verbesserung des Wirkungsgrades beim Trocknen von wasser­ reichen Braunkohlen und zur Erleichterung der Reinigung von anfallenden Prozeßwässern in einer Fleißnertrocknung wird vorgeschlagen, die Rohkohle mit heißem Abwasser zu über­ brausen und den Feinkornanteil mit einer maximalen Korngröße von 5 mm, vorzugsweise 1 mm, abzutrennen. Der Feinkornanteil wird in der Folge einer Adsorptionsstufe (5) unterworfen, wobei nach einer Reaktionszeit von wenigstens 1 min, vorzugs­ weise 2 bis 5 min, ein Großteil der das Abwasser belastenden löslichen Stoffe an diesem Feinkorn adsorbiert wird. In der Folge wird das Abwasser nach einer Flockung in einem Flockungsreaktor (6) und einer Feststoffabscheidung (8) weiter gereinigt, wofür Sandfilter (10), Adsorberharze und Aktivkohle verwendet werden können. Das gereinigte Prozeß­ wasser kann als Speisewasser für eine Dampferzeugung in einer Verbrennungsanlage (13) herangezogen werden und teilweise zur Spülung der Sandfilter (10) herangezogen werden. To improve the efficiency of drying water rich brown coal and to facilitate the cleaning of process water in a Fleißner drying proposed to overcoat the raw coal with hot waste water shower and the fine grain portion with a maximum grain size of 5 mm, preferably 1 mm. The fine grain fraction is subsequently subjected to an adsorption stage (5), after a reaction time of at least 1 min, preferably wise 2 to 5 minutes, a large part of those polluting the wastewater soluble substances is adsorbed on this fine grain. In the The wastewater becomes flocculated in one Flocculation reactor (6) and a solid separation (8) further cleaned, for which sand filter (10), adsorber resins and Activated carbon can be used. The cleaned process water can be used as feed water for steam generation in a Incinerator (13) are used and partially for Rinsing the sand filter (10) can be used.

EP86890287A 1985-11-08 1986-10-23 Process for drying brown coal with a high water content Withdrawn EP0222730A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3260/85 1985-11-08
AT0326085A AT388170B (en) 1985-11-08 1985-11-08 METHOD FOR DRYING WATER-BREASTED BROWN

Publications (2)

Publication Number Publication Date
EP0222730A2 EP0222730A2 (en) 1987-05-20
EP0222730A3 true EP0222730A3 (en) 1988-03-02

Family

ID=3547831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890287A Withdrawn EP0222730A3 (en) 1985-11-08 1986-10-23 Process for drying brown coal with a high water content

Country Status (6)

Country Link
US (1) US4741837A (en)
EP (1) EP0222730A3 (en)
AT (1) AT388170B (en)
AU (1) AU6493786A (en)
DD (1) DD250365A5 (en)
YU (1) YU186286A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071447A (en) * 1989-10-31 1991-12-10 K-Fuel Partnership Apparatus and process for steam treating carbonaceous material
US5547548A (en) * 1994-07-18 1996-08-20 Tek-Kol Pyrolysis process water utilization
US5681284A (en) * 1994-10-31 1997-10-28 Glenn Herskowitz Infusion pump with tube spike holder
US5711769A (en) * 1995-09-08 1998-01-27 Tek-Kol Partnership Process for passivation of reactive coal char
CN102358649A (en) * 2011-09-19 2012-02-22 李柏荣 Treatment process of lignite upgrading wastewater
CN103395941B (en) * 2013-08-09 2014-12-10 中国矿业大学(北京) Lignite upgrading condensate recycling system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3395334A (en) * 1967-06-15 1968-07-30 Alnor Instr Co Condition responsive power control circuit including a passive element charging circuit
FR2499544A1 (en) * 1981-02-06 1982-08-13 Rhone Poulenc Sa Reclamation of domestic waste water - by treatment with oxidising agent or alkali and cation exchange
WO1985000354A1 (en) * 1983-06-30 1985-01-31 Drilling Waste, Incorporated Process and apparatus for handling waste from oil well operations
EP0155927A2 (en) * 1984-03-21 1985-09-25 VOEST-ALPINE Aktiengesellschaft Drying installation for lignite with a high water content

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763040A (en) * 1971-08-13 1973-10-02 Environmental Protection Agenc Processes for reducing the organic-carbon content of water contaminated with organic compounds by continuous countercurrent multistage treatment with activated carbon
DE2947765C2 (en) * 1978-11-28 1985-09-19 Koei Chemical Co., Ltd., Osaka Process for the production of phenols from aqueous solutions
JPS57162691A (en) * 1981-03-31 1982-10-06 Electric Power Dev Co Ltd Treatment for waste water of brown coal dehydration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3395334A (en) * 1967-06-15 1968-07-30 Alnor Instr Co Condition responsive power control circuit including a passive element charging circuit
FR2499544A1 (en) * 1981-02-06 1982-08-13 Rhone Poulenc Sa Reclamation of domestic waste water - by treatment with oxidising agent or alkali and cation exchange
WO1985000354A1 (en) * 1983-06-30 1985-01-31 Drilling Waste, Incorporated Process and apparatus for handling waste from oil well operations
EP0155927A2 (en) * 1984-03-21 1985-09-25 VOEST-ALPINE Aktiengesellschaft Drying installation for lignite with a high water content

Also Published As

Publication number Publication date
YU186286A (en) 1988-06-30
DD250365A5 (en) 1987-10-08
ATA326085A (en) 1988-10-15
AU6493786A (en) 1987-05-14
EP0222730A2 (en) 1987-05-20
AT388170B (en) 1989-05-10
US4741837A (en) 1988-05-03

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Inventor name: FOHL, JAROSLAV, DIPL.-ING. DR.

Inventor name: SCHWEIZER, MICHAEL, DIPL.-ING.

Inventor name: TESSMER, GERO