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In Non-recovery coke plants, the carbonization process takes place in large oven chambers where Primary air for combustion is introduced into the oven chamber. Combusted gases / Waste Gas exit through common tunnel is fed into a waste heat recovery boiler to convert waste heat into steam for power generation.
Check out various applications for Fire Tube type Waste Heat Recovery Boilers
In the Claus process, H2S-rich acid gas is burned in the reaction furnace, generating gas at around 1,300 °C. The furnace outlet gas is quenched in the MCC waste heat boiler, generating HP/MP steam.
Thermal Systems supplies complete Reaction Furnace (MCC) packages — burner, chamber, boiler and EBOP — in fire tube construction, with superheaters suitable for internal and import steam.
Spent sulphuric acid is thermally decomposed in the regeneration furnace, generating high-temperature gas that is recovered in a waste heat boiler producing high-pressure steam.
Thermal Systems supplies fire tube waste heat recovery boilers (WHRB) for SARU service, including the world's largest operating installation on a 1,000 TPD SARU.
In the sulphur-combustion route, molten sulphur is burned and the SO2 gas stream leaves the furnace at high temperature. The gas is cooled in a waste heat recovery boiler (WHRB), generating high-pressure steam and maximising energy recovery and acid yield.
Thermal Systems supplies fire tube boilers with external & integral gas bypass and water tube boilers with provision for future expansion — references up to 5,500+ TPD plant capacity.
In weak nitric acid plants, ammonia oxidation is highly exothermic and the converter outlet gas must follow a precise temperature profile.
Thermal Systems designs and supplies converter boilers, WHBs and economisers with start-up heaters — fire tube construction with natural circulation — suited to licensor specifications and existing plant layouts.
In methanol plants, hot synthesis gas leaving the reformer is cooled in a process-gas waste heat boiler, generating HP/LP steam.
Thermal Systems provides single or twin boiler designs combined with a common steam drum and superheater as per licensor and plant requirements, in gas-tight construction with gap-free welding.
In carbon black manufacture, hot reactor gases are cooled in inline boilers (Tread / Carcass black), and off-gases are fired in tail gas boilers generating high-pressure steam for power.
Thermal Systems' designs offer turn-down of 25% to 110% of MCR without support fuel and combustion control by fuel-gas temperature sensing, for smooth, trip-free operation.
