Despatch VOC User Manual

INSPIRED INNOVATION

u VOC Thermal Oxidizer

Virtually maintenance-free elimination of
Volatile Organic Compounds in exhaust gasses

Despatch’s VOC ermal Oxidizer was designed to eliminate over 99%
of Volatile Organic Compounds (VOCs) from gasses exhausted during
the drying step of solar cell manufacturing.

e solar cell manufacturing process creates unwanted environmental
pollutants which are byproducts of the drying process, and contain the
non metallic ingredients found in the paste material such as ethanol,
Texanol™ and terpineol. ese pollutants can condense inside facility
ductwork and create hazardous conditions. Destroying the VOCs using
the Oxidizer eliminates the need to collect and dispose of this waste in a
separate process. e exhaust exiting from the VOC ermal Oxidizer
contains only small amounts of CO

and water vapor.

2

In industries that emit VOCs and have established pollution control
technology criteria, ermal Oxidizers satisfy Best Available Control
Technology (BACT) and Lowest Achievable Emission Rate (LAER).

Features at a glance

u

Designed for high-speed, high-capacity

solar cell manufacturing lines

u

Eliminates VOCs as close to the point

of origin as possible

u

Electric (no need for gas or open flame,

no NOx generation)

u

Runs off of furnace power (with soft-start

software)

u

Best in class (99% or better)

destruction of VOCs:

– Odors – 100% elimination of odor

– 99%+ destruction of particulate matter

and VOCs (Volatile Organic Compounds)

u

Exhaust contains only CO

u

Meets legal requirements regarding the

capture or destruction of VOCs including
TA Luft regulation of Germany

u

Eliminates need for handling and disposal of

waste product collected in VOC condensers

u

Fits on top of CDF dryer - no additional

footprint required

and water vapor

2

Patent pending

e operation of the VOC ermal Oxidizer is based on the
principle of combustion which is the most commonly used
method to control emissions of organic compounds and is
used in a variety of industries. Combustion systems are
simple and have very high destruction eciency.

e VOC ermal oxidizer maintains a temperature of
760°C (1400°F) to ensure destruction of all VOCs. e
oxidation process releases heat and thereby contributes to
maintaining the temperature of the oxidizer.

Minneapolis • shanghai • Berlin • singapore • hsinchu • tokyo • seoul

Despatch’s ermal Oxidizer attaches
directly to the furnace, removing
any chance of condensation. VOCs
are incinerated, releasing only small
amounts of CO2 and water.

Other VOC abatement options are ineective and require extensive
maintenance. Condensers require containment and removal of
hazardous solvents and regular cleaning. With remote facility abatement
systems, solvents condense in the ductwork requiring extensive cleaning
and creating a re hazard.

VOC Thermal Oxidizer

(Point of origination)

VOC Condenser

(Point of origination)

Voc therMal oxidizer single lane dual lane

Operating temperature 760°C (1400°F) 760°C (1400°F)

Residence time 1.0 seconds 1.0 seconds

Facility exhaust** 250 m3/hr (8500 SCFH) 500 m3/hr (17000 SCFH)

Facility exhaust temperature 100°C (212°F) 100°C (212°F)

Installed heater capacity 15 kW 30 kW

Heat input at nominal rates 11 kW 22.5 kW

Nominal Operating Load* 16 Amps 32 Amps

Height from floor to connection point 308cm 313 cm

Nominal Operating Costs ($0.09 /kW hr)

* The 400 volt single phase Oxidizer load is balanced on the furnace 3 phase power.
Amperage shown is nominal increase to furnace load. No additional power drop required.
** Two facility exhaust connections per dryer. Values shown are for each connection.
Notes: Specifications are subject to change without notice.
Contact Despatch for most updated specification.

$0.58/hr $1.00/hr

Remote Facility

Condenser or Oxidizer

100

99
98
97
96
95
94
93

Destruction Efficiency (%)

92
91
90

677°C 704°C 732°C 760°C 788°C 816°C
(1250°F) (1300°F) (1350°F) (1400°F) (1450°F) (1500°F)

As tested by American Engineering Testing, Inc.

1/19/2010

Tests
demonstrate over
99% destruction
of VOCs
above 760°C

serVice and technical support

service parts: 1-800-473-7373
international service/main: 1-952-469-8230
service fax: [phone]

[e-mail]

© 2010 Despatch Industries. All rights reserved. Despatch is a registered trademark of Despatch Industries in the U.S. and other countries. VOC OX 11-10

gloBal headquarters

phone: [phone]
1-888-DESPATCH (1-888-337-7282)
fax: [phone]

[e-mail]
www.despatch.com

8860 207th Street West
Minneapolis, MN 55044 USA