R&D

Deodorization facility

Odors in incinerators commonly arise during waste unloading, storage, and transfer processes.
Various substances mix during waste collection and disposal, generating compounds that cause odors.
To address this issue, we are developing an odor remover spraying system for waste storage warehouses, a dust collection facility for gas-phase odor inhalation,
and a deodorization system. This system pyrolyzes odor components by supplying air, containing inhaled odor components, to the incinerator as combustion air.

Key System Technologies

01

Storage facilities capable of
unloading and storing waste

02

The use and spraying system of
odor remover to reduce odor generated
from waste

03

Supplying the necessary air for combustion and post-treatment from the local hood or exhaust hood by suctioning the odor gas in the gas state for odor removal

Thermal Oxidation technology

concept

Air containing odorous components is supplied to the incinerator as combustion air through a dust collection system and combusted to thermally decompose the odorous components.

Occupational combustion

Wide range of deodorization possible

incinerator

According to environmental laws, a minimum temperature of 850˚C is maintained in the secondary combustion chamber -> Oxidation and deodorization are possible with sufficient residence time at high temperatures.

disadvantage

NOx generation (NOx generation problem can be solved by using exhaust gas recirculation technology, so NOx reduction and thermal efficiency can be improved)

[Burning method-based deodorization technology (ref. domestic and international odor prevention technology trends: IP analysis report)]

Burning method-based deodorization technology
Deodorizer Deodorizer Overview Advantages
Combustion
Method		 Direct
Combustion
Device		 Heated to approximately 800-900°C,
Oxidized and decomposed into
CO2 and H2O
  • · Deodorizes a wide range of organic
    solvents
  • · High operating cost for waste heat
    recovery
  • · NOx generation
Accumulated
Combustion
Device		 Combustion device with increased
heat exchange efficiency (>80%) by a
heat storage material
  • · Economical deodorization of
    intermediate concentration exhaust
    gas
  • · Low NOx emissions
  • · Increased installation space
    and weight
  • · High equipment cost
Catalyst Type
Combustion
Device		 Oxidation decomposition at low
temperatures between 200 and 300°C
by catalyst
  • · Low operating costs compared to
    direct combustion
  • · Less occurrence of NOx
  • · Need to take countermeasures if
    there is catalytic poison

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