Incinerators

Reningssystem

Industri-Teknik Bengt Fridh AB design and build purification plant and incinerators for liquids and gases containing substances which have to be destroyed. The systems are built in accordance with current directive and requirements for destruction of hazardous wastes. We build systems for thermal oxidation in combination with regenerative heat recovery, systems for catalytic oxidation and combined systems with evaporation. One important goal is in most cases to recover heat from the purification system to the process. Construction can take place of purification system for gases and liquids containing different kinds of solvents and waste products. For liquids up to approximately 10 ton/h and for gases up to approximately 50 000 nm3/h.

THERMAL DESTRUCTION Thermal destruction of waste gases which are rich of chlorinated solvents from medicine production. A flow of approximately 300 nm3/h gas is heated to 850 ºC, response time in hot zone is 2 seconds in an atmosphere that contains oxygen enough to oxidize all flammable substances.
DESTRUKTION Destruction of environmentally harmful substances in liquids and gases from chemical industry. A flow of 7000 kg/h liquids and 1200 nm3/h gases is incinerated at 1000 °C in a combustion chamber with 2 seconds response time. Before incineration the liquid is threaded in an evaporator to split the liquid in one vapor and one concentrate phase. Heat recovery by steam production in a 38 bar boiler. Destruction of substances such as ethylene oxide and carbon monoxide. In a flow of 7200 nm3/h the flammable substances is oxidized on a platinum catalyst at 275 °C and 1,7 bar pressure.
THERMAL OXIDATION . Termal oxidation of process gases from destruction of explosives. The 6 000 Nm3/h of process gases are preheated to 550ºC and are burned at 850ºC. As support fuel is in this case oil number 1 used any other fuel can be used in other applications. . The combustion installation is equipped with a data logging system for all impotant process data.
BOREALIS IN FINLAND . Within the refinery in Poorvo there a number of large supply tanks for storage of benzene. The tanks are filled from tankers and highly volatile gases emit from the tank's vent pipes. These are interconnecteto a suction system, which is connected to an incinerator where thermal treatment occur when the tank is filled. The equipment is placed in an Ex classed zone with a flame arrestor for incoming gas. Capacity 500 m³/h, percentage of benzene 5% in N2.
SLIP NAXOS, Västervik . The company manufactures gringstones, which are hot pressed and dried with hot oil. From this process residue gases ensue in the form of naphtalene and solvents. The suction from mashines and dryers are connected to a joint pressure controlled suction system connected to a oil fired ininerator with build -in heat exchanger for heating of the flue gas before the thermal treatment. Heat exchanger for hot oil and water retrieves the energy to the process, capacity 12 000 nm³/h, cleaning efficiency 99,5%.
SEKAB. Svensk Etanol Kemi AB in Örnsköldsvik. . SEKAB produces ethyl alcohol for different purposes. At the preparation residue gases, which contain methane, methyl acetate, hydrogen gas, acetate aldehyde and acetum, 20 g/Nm³ are obtained. The residue gases are attained from two places in the process, each with a flow of 3600 Nm³/h. The gases are sucked through gas fans concurrently with the production. The combustion takes place in an incinerator with 95 % ethyl as supporting fuel. The incinerator is connected to an exhaust gas boiler for steam production. The system provides a cleaning efficiency of over 99 % and a steam production of 7 ton/h, which later is used in the production of ethanol. The result: Cleaner air - lower operative expenses !
EKA NOBEL SKOGHALL AB Steam plant for the process industry . At the preparation of chlorine and chlorate, hydrogen is obtained as a secondary product. Hydrogen gas is a very clean fuel, which only emit steam as exhaust. The great explosion area of the hydrogen gas at air admixture requires special measures when handling and at combustion. With our burner system hydrogen gas can be used for energy production. The gas can be fired without any supporting fuel or in combination with other fuel. At combination firing with oil the emitted water steam is used as an additional atomising of the oil. Through simultaneous firing with hydrogen and oil, all of the hydrogen from the process can be used first. If the steam requirement is greater than the energy available from the hydrogen gas the oil replaces the hydrogen. All obtained energy from the process is reverted to the production, resulting in low energy expenses.