Conventional application: VOC treatment
Regenerative thermal oxidation (RTO) technology
was developed in the 1970s and 1980s. By the early 1990s,
the technology occupied an enviable position in relation
to other technologies for the treatment of conventional
VOC emissions. It made it possible to achieve a destruction
efficiency greater than 99% while keeping operating costs
low. Biothermica has the expertise for treating emissions
from the following industries:
- Graphic art and printing;
- Painting booth;
- Textiles:
- Food;
- Flooring;
- Petrochemicals;
- And other applications.
Special application: Treatment of COCs and
corrosive emissions
In the early 1990s, RTO technology did not
treat fumes containing COCs. The main difficulties in treating
fumes containing COCs were the following:
- COC destruction efficiency of less than 90%;
- Accumulation and clogging up of entry pipes and saddle
beds;
- Uncontrolled ignition of accumulations in beds;
- Overheating incidents damaging valves, pipes and blowers.
The use of RTO technology in treating corrosive
emissions was also avoided because of operation and maintenance
difficulties.
In the face of stricter environmental standards
for COCs and the absence of any reliable, efficient and
economical control technology, Biothermica’s research
department started a development program in 1990 aimed at
adapting RTO technology to the treatment of COCs. The program
resulted in a first unit being installed in 1991 at a plant
producing asphalt paper.
The experience acquired since then by Biothermica
in treating COCs and corrosive emissions has enabled the
company to develop a large field of expertise. Biothermica
became recognized for the excellence and reliability of
its equipment and systems for treating emissions containing
TRSs, PAHs, and dioxins and furans. The following applications
are described below:
- Asphalt
roofing plant
HAP and heavy aliphatic compounds – Condensable
emissions
- Kraft pulp
plant
TRS – Corrosive emissions
- Anode manufacturing
plant (aluminum smelters)
Pitch vapor – PAH – Condensable emissions
- Magnesium
plant
Dioxins and furans – Condensable and corrosive emissions
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