About Dankuni Coal Comlplex and its Products

By -
Link-  http://www.secl-cil.in/forms/list.aspx?lid=606

DCC PRODUCTS-- xylenol, phenol, ortho cresol, tar, coal fines, hbta, coke and coke fines
What does HBTA stand for?
HBTA stands for High Boiling Tar Acid
CIL COKE / LTC COKE :

CIL Coke / LTC Coke is a smokeless, environment friendly product of the Dankuni Coal Complex, obtained through low temperature carbonisation.
§  Used in furnaces and kilns of industrial units
§  Also used as domestic fuel by halwais, hotels, etc.
COAL FINES / COKE FINES :

These are the screened fractions of feed raw coal and LTC coke / CIL Coke respectively, obtained from the Dankuni Coal Complex and other coke oven plants.
§  Used in industrial furnaces as well as for domestic purposes
TAR / HEAVY OIL / LIGHT OIL / SOFT PITCH :

These are products from Dankuni Coal Complex using low temperature carbonisation of non-coking coal in vertical retorts.
§  Used in furnaces and boilers of industrial plants as well as power houses, oil, dye, pharmaceutical industries, etc.Coke-
Manufactured from low phosphorous and low sulphur coal source.
Available in (+) 35 to (-) 70 mm, (+) 6 to (-) 35 mm and 0-10 mm size range.
Fixed Carbon content: 52-57%, V.M: 2-3%, Phosphorous- 0.02-0.03%,Sulphur:0.4-0.5%
Usage: (+) 6 mm Coke used as smokeless domestic fuel, Industrial Reductant for mfg. of Bulk Ferro-Alloys. (-) 6 mm coke used for Briquettes, Cement Plants, Smelting/ Rosting.
Coal Fines- Size of 0-25 mm, GCV- 5800   to 6100 K.Cal/Kg
Usage-
1.     Sweetener for improving PLF in Power Plants.
2.     In cement plants for better quality products.
3.     Due to long flame character, suitable for Boiler and furnace, Brick and lime kilns.
Coal Tar-
 Destructive distillation of Coal in Retorts liberates Coal-Tar.
Specific Gravity 1.02-1.04, Moisture- 1-2%. GCV : 10200 K.Cal/Kg., Kinematic Viscosity 184 cst at 40 Deg C.
Usage: Effective substitute of Furnace Oil, Preparation for Boat Paint, Tar-felt etc. Can be distilled to yield wide spectrum value added chemicals such as  phenol, Ortho-Cresol,Meta-para-Cresol, Xylenol and HBTA.
The Fuel Policy Committee of Govt. of India in its report in 1974 recommended the setting up of a number of Low Temperature Carbonisation Plant in India for replacement of petroleum based fuel oil in the wake of sudden rise in petroleum prices during the middle of 1970’s. In pursuance of this decision, Govt. of India decided that such a Plant would be operated by Coal India Ltd. accordingly a Carbonisation Plant at Dankuni was set up.
The Prime Objectives of this project is to produce
  • About 1000 MT per day of solid Smokeless Fuel, branded as CILCOKE and cokefines.
  • About 18 million cft of Coal gas per day for supply in and around Calcutta and Howrah.
  • About 60 to 70 tonnes of Tar Chemicals per day.
  • Both solid and gaseous fuels, being very clean in nature, would subsequently contribute to the reduction of pollution level of Calcutta and Howrah.
Dankuni Coal Complex Plant has been leased out by Coal India Ltd. to SECL .
Products of Dankuni Coal Complex, Dankuni (West Bengal) :
  •    Cilcoke
  •    Coke fines
  •    Coal fines
  •    Coal gas
  •    Light Oil/Partially Distilled Light Tar
  •    Ammonium Sulphate       
  •    Dehydrated Tar

Comments

Post a Comment

Popular posts from this blog

MCQ Practice Session - 5

By -
1.          NCWA stands for: a)      National Coal Wage Arrangement b)      National Coal Wage Agreement c)      National Coal Washery Association d)      Not known 2.         Effective period of which NCWA was of 4 and ½ years: a)      NCWA-III           b) NCWA-IV                 c)  NCWA-V 3.         The percentage of Minimum Guaranteed Benefit in NCWA-IX is: a)      24%                    b)  25%                   ...
Read more

History of SLU/SLP/SLI & SLW in CIL

By -
History of SLU/SLP/SLI & SLW in CIL The provision of upgradation to the next higher grade/category in respect of non-executive employees who remained in the same grade/category for more than 10 years was first introduced in the operation period of NCWA-IV and was brought in effect from 01-07-1989 which continued progressively on 01-07-1990, 01-07-1991 and so on. The said provision was made effective vide Implementation Instruction No-3 of NCWA-IV. In the subsequent NCWA as well, the above provision was continued to be in operation vide clause-2.11.0 of NCWA-V with effect from 01-07-1994 and thereafter on 01-07-1995. It was also agreed that if any reduction in the period of 10 years for the purpose of upgradation is mutually decided at later stage of time, the same would be effective from 01-01-1996. In the subsequent NCWA i.e. NCWA-VI (01-07-1996 to 30-06-2000), the period of 10 years was reduced to 7/8 years in UG/Surface respectively and the same was termed as SLU (Service ...
Read more

MCQ Practice Session-8

By -
1.      Which of the following equipments are chain mounted? a) Side Discharge Loader b) Load Haul Dunper c) Both d) None 2.      Which of the following is a mass production technology for UG? a) SDL b) LHD c) PSLW (Power Support Long wall) d) None 3.      In which OCP, In-pit-crushing and conveying system is used for? a) Gevra Mine b) Dipka Mine c) Piparwar d) Jagannath 4.      SDL & LHD in UG are used for…………… a) Transporting b) Loading c) Cutting d) Drilling 5.      What are the characteristics of imported coal? a) Low ash & moisture b) High Sulphur c) Both a) & b) d) None 6.      Under New Coal Distribution Policy(NCDP), Coal is sold by CIL through……… a) Fuel Supply Agreement(FSA) b) Memorandum of Understanding(MOU) c) E-auction d) All of the above 7.      Which of the fol...
Read more