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Shree AshTech Enterprises Contact us:
H.No. 1126, 2nd Floor
Sector-2,Ballabgarh
Distt: Faridabad
Haryana( India) PIN- 121004
TELEFAX: 0129-2210157
MOBILE: 09313361750
EMAIL: flyash4u@gmail.com
A Venture for Fly Ash & Petroleum Coke (Petcoke) Utilization
PETROLEUM COKE (Petcoke)

SPECIFICATION OF PETCOKE

Property

Unit

Standard

Typical Characteristics

petcoke

As Received

Total Moisture

%

10.0, max

4 to 8, max

Ash

%

1.0, max

0.6 – 0.8

Volatile Matter

%

8 min.

9 – 11

Fixed Carbon

%

87 Approx

86

Gross CV

kcal/kg

8200, min

8300 – 8500

Sulphur   

%  

Grade-A    7.0 max

6.5 – 7.0

Grade-B    7.5 max

7.0 – 7.5

Grade-C    8.5 max

7.5 – 8.5

HGI

35, min

40 – 50

 

WHY TO USE PET COKE?

  1. Very High Cost Advantage against Gas / Furnace Oil. Also Gives Competitive Cost Advantage against Lignite.
  2. Nil Ash Content (< 1%). So Less Pollution related problem due to the same as well as No Disposal Problem. Also Due to Nil Ash content in Pet Coke unburnt material is reusable. This recovery of Unburnt is not possible in case of lignite due to high ash content.
  3. Low Volatile Matters: Due to low volatile matters handling of Pet Coke is very easy rather than lignite as it easily gets burnt due to high volatile matter even in heavy sun light.
  4. High GCV: As Pet Coke has high GCV, the actual material quantity to be handled reduces to 2 to 3 time than that of Lignite. Also Grinding requirement of Pet Coke is much lesser than that of Lignite. So ultimately it reduces the operating and material handling costs.
  5. Manufactured Product: one can get Consistent Quality.
  6. As Pet Coke is a Petroleum Product; it does not suck moisture by self.

So, on basis of above benefits, Pet Coke is much beneficial than Gas/FO, coal and Lignite.

 

ADVANTAGES OF PETCOKE AGAINST COAL

PARAMETER

PETCOKE

COAL

GCV

VERY HIGH-8200 KCAL/KG

LOW-VARIES FROM 4000 TO 6200 KCAL/KG APPROX.

ASH

NIL(<2%)

10% TO 30% MAY BE MORE DEPEND UPON THE QUALITY(DOMESTIC/IMPORTED)

NATURE OF ITEM

MANFACTURED PRODUCT

NATURAL AVAILABLE

GRINDING REQUIREMENT

VERY LOW-APP. 20-25% NEED GRINDING

HIGH TO MEDIUM-APP. 1.5 TO 2 TIMES HIGHER THEN PETCOKE

MOISTURE

LOW-DOES NOT SUCK MOISTURE BY SELF

HIGH-DOES SUCK MOISTURE FROM LAND & ATMOSPHERE


HOW TO USE OF PETCOKE

REQUIREMENTS FOR USE OF PET COKE
Use of Petroleum Coke requires your GAS/FO base Boilers, FOB / Manual Fired Boilers or Thermopacks to be modified for the same. Most of these boilers / thermopacks are suitable for such modifications; however technical verification needs to be done to find out the suitability for the same. So if modifying the boiler, save considerable cost and time that applies in new boiler.

HOW TO DEAL WITH HIGH SULPHUR CONTENT

Only obstacle in direct use of Pet Coke is its high Sulphur content. But this can be controlled by simple processes. Use of Limestone  with  Pet Coke,  one  can  capture  certain percentage  of  Sulphur  Dioxide  emission.   Limestone also act as bed material allows to maintain bed temperature. Approx size of lime stone to be used is 2 – 3 mm size particle.
 
FGD Scrubbers are used to take additional control over SOx emission. 
May also require Wet Precipitator in addition to a Dry Electrostatic
Precipitator (ESP) and wet FGD.

 

 

 

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