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Petroleum Products

Our refinery produces a range of high value, environment-friendly petroleum products such as Motor Spirit, High Speed Diesel, Superior Kerosene Oil, Aviation Turbine Fuel, Liquefied Petroleum Gas, Naphtha, Pet Coke, Sulphur, Bitumen, to cater to both the domestic and commercial demand in the northern region of the country. All refined products are supplied to and marketed through HMEL's Joint Venture promoter HPCL and its nominated companies.

We have marked presence for Pet Coke, Sulphur and Polypropylene in the export markets and HMEL products conform to the export specifications.

HMEL Product Portfolio

Petroleum Products


Product Specifications Applications
Petroleum Products
Motor Gasoline 
1. Research Octane Number (RON) : Min. 91
2. Sulfur BS VI grade : Max. 10 wt ppm
3. Density at 15°C : 720 - 775 kg/m3
4. Aromatic Content : Max. 35 vol%
- Fuel primarily for passenger cars
High Speed Diesel (HSD)
1. Cetane Number : Min. 51
2. Sulfur BS VI grade : Max. 10 wt ppm
3. Density at 15°C : 815 - 845 kg/m3
- Fuel for automotive diesel engines used in transportation vehicles,
locomotives, power generation, construction and farming.
Superior Kerosene Oil (SKO)
1. Sulfur : Max. 0.10 mass%
2. Smoke Point : Min. 18 mm
3. Density at 15°C (typical) : 775 - 840 kg/m3
- Cooking fuel in portable stoves
- Lighting fuel in kerosene lamps and lanterns
Aviation Turbine Fuel (ATF)
1. Sulfur : Max. 0.25 mass%
2. Density at 15°C : 775 - 840 kg/m3
3. Electrical conductivity
(at delivery temperature)
: 50 - 600 pS/m
4. Freezing Point : Max. -47 deg C
- Fuel for turbine engines in Aircraft
Liquefied Petroleum Gas (LPG)
1. Vapor pressure at 40°C : 520 - 1050 kPa
2. Total Volatile Sulphur : Max. 140 wt ppm
3. Volatility
(Evaporation Temp for 95% vol
: Max. 2.2 deg C
at 760 mm Hg pressure)
- Fuel for cooking and heating
1. Density at 15°C : Max. 740 kg/m3
2. Sulfur : Max. 600 wt ppm
3. Paraffins : Min. 70 vol%
4. Olefins : Max. 1.0 vol%
5. Final Boiling Point : Max. 204 deg C
- Feedstock for Petrochemicals plants
- Fuel for power and steam generation
Pet Coke
1. Gross Calorific Value (typical) : 8200 Kcal/Kg
2. Total sulfur (typical) : 7.5 mass%
3. Fixed Carbon (typical) : 88 mass%
4. Ash (typical) : < 1.0 mass%
As a heating fuel in the following industries:
- Cement Kilns
- Thermal Power Plants
- Brick Kilns
- Lime Kilns
- Paper Industry
- Steel Rolling Mills
- Foundries
1. Color : Max. Bright Yellow
2. Ash content (Typical) : 0.05 mass%
Sulphur product has applications in the production process of the following industries:
- Sulphuric Acid
- Fertilizer Industry
- Tyre & Rubber Industry
- Sugar Industry
- Linear Alkyl Benzene
- Carbon Disulphide
- Caprolactam
- Explosives & Fire Crackers
- Pharma Industry
- Dye & Dye Intermediates
VG 10 grade:  
1. Penetration at 25°C, 100g, 5s
(1 unit= 0.1 mm)
: Min. 800 units
2. Absolute viscosity at 60°C : 800 - 1200 Poise
3. Kinematic Viscosity at 135°C : Min. 250 cSt
4. Softening Point (R&B) : Min. 40 °C

VG 30 grade:  
1. Penetration at 25°C, 100g, 5s
(1 unit= 0.1 mm)
: Min. 450 units
2. Absolute viscosity at 60°C : 2400 - 3600 Poise
3. Kinematic Viscosity at 135°C : Min. 350 cSt
4. Softening Point (R&B) : Min. 47°C

VG 40 grade:  
1. Penetration at 25°C, 100g, 5s
(1 unit= 0.1 mm)
: Min. 350 units
2. Absolute viscosity at 60°C : 3200 - 4800 Poise
3. Kinematic Viscosity at 135°C : Min. 400 cSt
4. Softening Point (R&B) : Min. 50 °C
- Road pavement
- Roofing felts

Speciality Products


Product Specifications Applications
Speciality Products    
1. Density at 20°C : 660 -687 kg/m3
2. Sulfur : Max. 5 wt ppm
3. Distillation: IBP : Min. 63 °C
Recovery between 64°C - 70°C : Min. 95 vol%
4. Composition (typical)  
Saturates : 99.99 vol%
n-Hexane : 35 - 45 vol%
- Drug and pharmaceutical industry
- Solvent in solvent extraction process
Mineral Turpentine Oil (MTO) 
1. Color-Saybolt : Min. 21
2. Density at 15°C (typical) : 775 - 840 kg/m3
3. Flash Point : Min. 30°C
4. Aromatic Content : Max. 40 vol %
- Raw material for paints and varnishes
- Dry cleaning and other industrial cleaning purposes

By Products


Product Specifications Applications
Fly Ash
1. Appearance : Grey Fine Powder
2. Ash at 1000 oC : 90 - 98%
3. CaSO4 : 35 - 45 %
4. CaO : 45 - 55 %

- In manufacturing of Portland Pozzalana Cement
- Embankments and other structural fills (usually for road construction)



Product Specifications Applications
Polypropylene (PP) Product is sold basis customer requirements for typical values on the following properties:
1. Physical Properties
- Melt Flow Index
- Yellowness Index
- Xylene Solubility
2. Mechanical Properties
- Tensile Strength
- Elongation
- Impact Strength
- Flexural Modulus
3. Thermal Properties
- Softening Point
- Heat Deflection Temperature
Moulding grade:
Furniture, Automotive, Appliances, Household containers
Raffia grade:
Industrial packaging such as cement sacks, Leno bags, Tape yarns, Monofilaments, Ropes
Tubular Quench grade:
Tubular Water Quench (TQ) Film for packaging foodstuffs and garments, snack food, Bread bags, grocery & general purpose packaging
Bi-axially Orientated PP (BOPP) grade:
General Purpose BOPP Films, Metallizable BOPP Films (Stenter process), lamination grade BOPP Films, Snack food/ FMCG packaging, cigarette overwraps, adhesive tapes.
Fibre & Filaments grade:
Multi filament yarn, Non-woven fabrics & Extrusion coating application.
Thermoforming grade:
Thermoforming Cups, Disposable articles, and Rigid food containers & trays.


Our refinery’s state of the art Delayed Coker Unit (DCU) produces high sulphur Petroleum Coke (Pet Coke) which is the carbonaceous solid residue remaining after the distillation of petroleum materials. Pet coke has more than twice the calorific value of coal and is widely used as an alternative to coal in power plants, cement kilns and blast furnaces.

Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. Any coal using industry can be a potential consumer of Petcoke. Major industrial segments using Fuel grade Petcoke in India are :

  • Cement Kilns
  • Thermal Power Plants
  • Brick Kilns
  • Lime Kilns
  • Cement Kilns
  • Thermal Power Plants
  • Brick Kilns
  • Lime Kilns

BIS specification of petcoke as per IS:8502-1994 is given below:

Particular Value
Moisture (% mass, max) 8-12
Moisture (% mass, max) 4.5-7.5
Ash, % mass, max 0.2-0.3
Volatile Matter, %mass, max 8-11
Fixed Carbon, % mass, min 87.93-91.01
Gross Calorific Value, (GCV) Kcal/kg 7,800-8000

Petroleum coke is the solid residue remaining after the distillation of petroleum materials. It is a carbonaceous solid derived from oil refinery Delayed Coker Unit.

High Carbon Content : It’s high carbon content makes it an excellent heat energy source.

High Calorific Value : Petcoke has high calorific value, ranging from 7000 to 8500 Kcal/kg, which makes it an economic fuel as compared to the alternate fuel coal.

Low Volatile Matter : Low volatile matter makes it a slow burning fuel so it requires high ignition temperature.

High Sulphur Content : It has high Sulphur content, which necessitates the deployment of SOx capture or removal system to reduce SO2 emissions. However, Petcoke is ideal for burning in lime kilns, where the sulphur combines with various salts of calcium to form sulphates, thus limiting the SO2 emission.

Low Ash Content : Petcoke has extremely low ash content, which eliminates the need to handle and dispose high quantity of ash associated with combustion of Indian coal having 15-35% ash.

High Hard Grove Index : Pet coke has low Hard Groove Index, which makes it relatively harder material to grind and pulverise.

Comparison Of Indian Coal, Imported Coal & Petcoke

A comparison of specification of C grade Indian non-coking coal used by cement industry, coal imported from Indonesia and petcoke to be produced by HMEL is shown below

Parameter Average Values
‘C Grade’ Indian Coal Coal Imported from Indonesia Petcoke to be produced by HMEL
GCV (Kcal/kg) 4900 6400 8200
Sulphur, (% mass, max) 0.8 1.00 7.5
Ash Content, (% mass, max) 32 4.5 NIL
Volatile Matter, (% mass, max) 27 41 10
Moisture Content (%mass, max) 4 16 10
Metallic Impurities Absent Absent Present (Ni & V)
Non-Metallic Impurity Present Absent Absent
Hard Grove Index (HGI) - - 30-40
Size in mm (Max.) - - 100


Our Sulphur Recovery Unit (SRU) produces Sulphur in powder and lump form. Maximum usage of Sulphur is for production of Sulphuric Acid which is widely used as a raw material for producing phosphatic and nitrogenous fertilizers. In raw form Sulphur is also used in explosives, sugar industry, match sticks etc

Major Applications

Maximum usage of Sulphur is for production of Sulphuric Acid. Sulphuric acid is widely used as a raw material for producing phosphatic and nitrogenous fertilizers.

Fertilizer Application of Sulphuric Acid Non-Fertilizer applications of Sulphuric Acid Other applications of Sulphur in Raw Form
Single Super Phosphate (SSP) Diammonium Phosphate (DAP) Ammonium Sulfate (AS)
Batteries Detergents Paint Caustic Soda Titanium Dioxide Phosphoric Acid & Printing etc.
Sugar Industry Match Sticks Explosives Fire crackers Vulcanisation of Rubber Pharmaceuticals Dyes etc

The guidance values of assay and impurities as per BIS Standard IS:6655-1972, are as below

Characteristics Percentage by Mass
Assay (dry basis) 99
Colour Bright whitish yellow
Ash 0.25
Carbon 0.1 to 1.0

Speciality Products

Our special products portfolio includes Premium Grade Mineral Turpentine Oil (MTO) that meets the stringent norms set by major paint manufacturers and Food Grade Hexane that meet the requirements of sensitive industries such as Pharmaceuticals


Fly Ash is the residue left after combustion of Pet Coke in the refinery's captive power plant. Due to its cementitious properties, it is excellent for manufacture of cement and bricks. India is the second largest brick maker in the world after China. Usage of Fly Ash in making bricks, compared to traditional clay bricks manufacture, reduces pollution.