Flue Gas Desulfurization

Industrial processes using high-sulfur fuels such as Coal, Pet Coke, heavy oil, etc. emit sulfur dioxide gas in large quantities. These emissions are harmful to environment causing acid rain, damage the equipment & public health, and shall be subject to stringent statutory norms in near future.

We have successfully built first of its kind & in-house developed FGD plant on 100% pet coke fired captive power plant in North India. This FGD plant is based on wet limestone process which generates Gypsum as a byproduct. This Gypsum is 100% consumed in cement making process. The above referred FGD plant in India is operational since February 2012.

The selection of FGD process for a given application is dependent on the following factors – 

• The cost and availability of reagents
• Utilization and disposal of by-products
• SO2 content in exhaust gases 
• Emission requirements
• Size of the plant

Wet  Flue Gas Desulphurization System

• Limestone  Process
• Sodium Process
• Ammonia Process 
• Seawater Process

 Semi-Dry Flue Gas Desulphurization System

• Flash Absorption Process (FAP) – Lime based 
• Spray drying Process –Lime based

 Dry Flue Gas Desulphurization System

• Furnace Sorbent Injection

• Process design for Spray tower, Dual tray system, Spray drier 
• Thermodynamic design
• Fluid mechanical design
• Piping design 
• Bill of quantity preparation
• Manufacturing drawings
• DPR preparation and project life cycle estimation