GB753244A - Improvements relating to the dehydration of gas and like tar by hot decantation and partial distillation - Google Patents

Improvements relating to the dehydration of gas and like tar by hot decantation and partial distillation

Info

Publication number
GB753244A
GB753244A GB76854A GB76854A GB753244A GB 753244 A GB753244 A GB 753244A GB 76854 A GB76854 A GB 76854A GB 76854 A GB76854 A GB 76854A GB 753244 A GB753244 A GB 753244A
Authority
GB
United Kingdom
Prior art keywords
tar
separator
emulsion
withdrawn
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.)
Expired
Application number
GB76854A
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.)
Heinrich Koppers GmbH
Original Assignee
Heinrich Koppers GmbH
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 Heinrich Koppers GmbH filed Critical Heinrich Koppers GmbH
Publication of GB753244A publication Critical patent/GB753244A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00—Working-up tar
    • C10C1/04—Working-up tar by distillation
    • C10C1/06—Removal of water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B01D17/048—Breaking emulsions by changing the state of aggregation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00—Working-up tar
    • C10C1/02—Removal of water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/001—Purifying combustible gases containing carbon monoxide working-up the condensates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Industrial Gases (AREA)

Abstract

In a method of dehydrating tar wherein the tar is heated under pressure in a separator so that it separates into three superimposed layers, viz., an aqueous layer, tarwater emulsion, and tar containing less than 5 per cent of water, part of the tarwater emulsion is withdrawn from the separator, heated under pressure to a <PICT:0753244/III/1> higher temperature than that maintained in the separator, and then subjected to reduction of pressure so that part of the water vaporizes and breaks up the emulsion; the partly dehydrated liquid is then returned to the separator where it separates readily into aqueous and tar layers. Tar and water are withdrawn separately from the separator. Raw tar deposited in gas main 1 is run into collector 2, and then pumped to separator 3 where it is heated to 80 DEG C. under a pressure of 15-30 lbs. per square inch, and separates into three layers. Part of the intermediate layer, i.e. the tar-water emulsion, is passed to heater 4 where it is heated under pressure of about 50 p.s.i.g. to 110 DEG -135 DEG C.; and the hot emulsion is then discharged into expansion vessel 5. The steam generated in vessel 5 is returned to main 1, while the liquid flows to tank 6 and thence to collector 2. Tar is withdrawn from separator 3 through line 3a; and ammonial liquor is withdrawn through line 3b. Part of the partially dehydrated liquid from vessel 5 may be pumped through line 5a to main 1 for flushing purposes.
GB76854A 1953-01-10 1954-01-11 Improvements relating to the dehydration of gas and like tar by hot decantation and partial distillation Expired GB753244A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK16740A DE923916C (en) 1953-01-10 1953-01-10 Process for dewatering coal tar

Publications (1)

Publication Number Publication Date
GB753244A true GB753244A (en) 1956-07-18

Family

ID=7214951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB76854A Expired GB753244A (en) 1953-01-10 1954-01-11 Improvements relating to the dehydration of gas and like tar by hot decantation and partial distillation

Country Status (3)

Country Link
DE (1) DE923916C (en)
GB (1) GB753244A (en)
NL (1) NL84595C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352872A1 (en) * 1976-05-29 1977-12-23 Krupp Koppers Gmbh TWO STAGE PROCESS AND INSTALLATION FOR TAR SEPARATION

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020349B (en) * 1955-03-12 1957-12-05 Still Fa Carl Removal of chlorammonium from tar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352872A1 (en) * 1976-05-29 1977-12-23 Krupp Koppers Gmbh TWO STAGE PROCESS AND INSTALLATION FOR TAR SEPARATION

Also Published As

Publication number Publication date
NL84595C (en) 1957-03-15
DE923916C (en) 1955-02-24

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