specializes in fabric filter based air pollution
control systems for combustion applications.
While many air pollution control companies try
to serve virtually all applications, BET has found
that their relatively narrow market focus offers great
rewards to both the company and their clients.
BET has become very experienced in these
segments and incorporates features in their design
that optimize the systems on these applications.
While the company is always willing to consider
related or similar applications, typically 90% of the
company's business comes from the selected markets,
which currently are in three areas:
industrial and institutional incinerators,
industrial solid fuel fired boilers and brick kilns.
These applications all have similarities, but
each with its own unique aspects.
plants are also a target of the Clean Air Act
Amendments with new regulations for the
emissions of HCl, HF and particulate matter from brick
with boilers, environmental litigation has vacated the
new standards, but in the meantime, BET provided
control for a dozen kilns, and is well positioned to
serve the market for new brick plants and retrofits of
equipment train is similar to the company's
incinerator and boiler applications, dry reagent
injection and pollutant removal in a baghouse (DIFF
system), complete with sub-systems that typically
include gas temperature control, an ID fan, draft
control, ductwork and duct valves, dust handling, etc.
Of particular importance to the brick industry
is BET's partnering philosophy.
Our willingness to provide technical support
for the life of the system at no additional charge to
the customer has been very well received in this
environmental regulation that created a new market in
the 1980's, in the long run shifted the economics so
that most incinerators were eventually shut down in
favor of alternative disposal methods.
However, there will always be certain
situations, both in the
and especially abroad, where incineration is the
selected disposal method, and BET is one of the few
companies that has considerable experience.
applications typically require gas cooling followed by
acid gas, toxic material and particulate matter
evaporative cooler and boiler capability can be used
for the gas cooling.
Dry and semi-dry gas scrubbing, along with a
polishing scrubber, if necessary, will meet virtually
any acid gas removal requirements.
Carbon injection controls many of the toxics,
while the BET fabric filter provides the final
Auxiliary systems, such as hot gas and baghouse
by-pass systems, draft control, material handling, air
moving equipment, etc. are all incorporated as needed
to suit the specific job requirements.
Clean Air Act created particulate matter regulations
for solid fuel fired boilers in the 1970's, at the
same time that energy costs skyrocketed.
The two forces created a major market for
baghouses on industrial solid fuel fired boilers, and
Standard Havens (BET's forerunner) was by far the most
successful supplier of boiler baghouse systems,
providing control of over 100 boilers.
has repeated itself
in the last few years when again gas and oil
prices shot up and new environmental regulations for
solid fuel fired boilers were enacted, this time for
HCl and mercury emissions.
Due to environmental litigation, the emission
regulations are uncertain at this time, but still the
market is back and BET is well qualified to serve it.
experience with boiler operations includes dozens of
fuels and firing methods, and the acid gas scrubbing
and toxics removal experience from the incinerator
applications lets BET provide a proven integrated
dry injection fabric filter (DIFF) system with either
a lime or sodium based reagent injection, plus
activated carbon injection, followed by a multiple
compartment baghouse provides a reliable, maintainable
and durable system that assures compliance.
The company has supplied complete new systems,
added on to previously supplied BET baghouses, and has
upgraded competitor's baghouses.