Low Sulphur Heavy Stock Oil
What is Low Sulphur Heavy Stock Oil?
Low Sulphur Heavy Stock Oil (LSHS) is a residual fuel derived from the refining process of crude oil. It has lower sulphur content compared to conventional heavy fuel oils, making it a more environmentally friendly option for industries.
Key Properties of LSHS Oil
✔ Low Sulphur Content – Reduces harmful emissions and meets environmental regulations.
✔ High Calorific Value – Provides efficient energy output for industrial applications.
✔ Cost-Effective – A more affordable alternative to high-cost fuels.
✔ Stable Combustion – Ensures smooth performance in boilers and furnaces.
Applications of LSHS Oil
LSHS Oil is widely used in industries requiring high-energy fuel with lower sulphur emissions. Some of the key applications include:
1. Power Generation Plants
- LSHS is commonly used in thermal power plants as a primary fuel source for electricity production.
2. Industrial Boilers and Furnaces
- It serves as an efficient fuel in boilers, kilns, and furnaces across various industries.
3. Cement and Steel Manufacturing
- Industries such as cement and steel rely on LSHS Oil for their high-temperature operations.
4. Textile and Chemical Industries
- Manufacturing units in textile and chemical industries use LSHS for heating and processing applications.
Advantages of Using LSHS Oil

1. Environmentally Friendly
- With lower sulphur content, LSHS produces fewer emissions, making it a greener alternative to traditional heavy fuel oils.
2. High Energy Efficiency
- LSHS offers a higher calorific value, ensuring better energy output and reduced fuel consumption.
3. Cost Savings
- As a cost-effective alternative to Furnace Oil and other fuels, LSHS helps industries lower their operational expenses.
4. Reliable Supply
- Kolkata has a well-established network of manufacturers and suppliers, ensuring a consistent supply of high-quality LSHS Oil.
5. Longer Equipment Life
- With reduced sulphur content, LSHS causes less corrosion in industrial equipment, leading to longer service life and lower maintenance costs.
Challenges and Future of LSHS Oil
Despite its advantages, LSHS Oil faces certain challenges, including:
✔ Environmental Regulations: Stricter emissions norms may affect its usage.
✔ Market Price Fluctuations: Prices depend on global crude oil trends.
✔ Shift to Renewable Energy: Industries are gradually moving towards sustainable energy sources.

However, manufacturers in Kolkata are adopting advanced refining methods and innovative fuel solutions to enhance the sustainability of LSHS Oil.