Products & Solutions

 

Flue Gas Desulphurization Systems

TRANSPARENT TECHNOLOGIES PRIVATE LIMITED

 
Home » Flue Gas Desulphurization Systems » Semi-Dry Flue Gas Desulphurization System

Semi-Dry Flue Gas Desulphurization System

  • Flash Absorption Process (FAP)
  • Spray Drying Process

Process Description of Flash Absorption Process based Semi Dry Flue Gas Desulphurization System

  • Based on flash drying principle
  • SOin the incoming flue gas reacts with semi solid mixture of lime, recycled calcium sulphate and calcium sulphite
  • The reaction byproducts consist of unreacted lime, CaCO3, and CaSO4.The byproduct collected is recycled along with the fresh lime slurry into the reactor.

Features

  • Fully automatic system
  • No effluent water generation
  • Least maintenance required
  • No anticorrosive lining required
  • Low initial cost
  • Reduced material handling requirements

Applications

  • Flue gas cleaning system for Waste to Energy Plants generating acid gases

Process Description of Spray drying based Semi-Dry Flue Gas Desulphurization System:

  • The process consists of large chamber in which absorbent liquid is sprayed and made to react with SO2 in the incoming flue gas to produce reaction products in form of particulates
  • The exhaust gas is then passed through bag filter to remove residual particulate matter and clean gas is discharged to atmosphere through stack

Features

  • Calcium Oxide slurry is used as sorbent.
  • Fully automatic plant
  • Integrated SOand particulate control.
  • Relatively low initial cost.

Applications

  • Flue gas cleaning system for Waste to Energy Plants generating acid gases

Process Description of Seawater based Wet Flue Gas Desulphurization System

  • Two basic seawater FGD process concepts
    • Most commonly used process using the natural alkalinity of the sea water to neutralize absorbed SO2
    • Addition of lime to seawater to neutralize absorbed SO2.

Features

  • Sea water is used as sorbent
  • No effluent discharge plant is required.

Applications

  • Plants in vicinity of sea with easily available sea water