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The Clean Air Act amendments of 1990 created
a wave of optimism in the air pollution control (APC) business.
The subsequent decade, however, resulted in backwash of disappointment
for APC companies as the market for stationary source equipment
declined from 1-4% per year from 1993-1998. Growth returned to
the APC market, however, with 1999 and 2000 characterized as
'good' years by the Institute of Clean Air Companies (ICAC,
Washington, D.C.) on the strength of strong demand for NOx equipment
and steady growth in VOC control systems. Jeff Smith, ICAC's
executive director, acknowledged that many companies "may
have overestimated the potential" of the Clean Air Act,
but that "we are certainly in for some better times"
with ICAC forecasting slow but steady growth through 2003.
EBJ estimates the stationary source market
at $3.6 billion in 2000, up 3% from 1999 with strong gains in
NOx counteracting continued drop-offs in flue gas desulphurization
and electrostatic precipitators. Demand for fabric filters and
aftermarket supplies for APC systems has remained fairly flat.
VOC and oxidation systems grew fairly steadily for the third
consecutive year as MACT standards continued to be put in by
EPA on an industry-by-industry basis. VOCs, along with NOx, are
the primary contributors to ozone and both will continue to benefit
from the emphasis on urban ozone control precipitated mainly
by a group of states in high-ozone areas. Recent federal regulatory
developments include the upgrading of the 1-hour standard to
a 8-hour ozone standard and the permitting of lower concentrations
of ozone from 0.112 ppm to 0.08 ppm. Leaders in VOC markets include
Durr, Megtec (see articles on both of these companies
on the following pages), Smith, Huntington, Anguil
and others.
NOx has taken over as the largest single
subcategory of APC equipment and will continue to be in strong
demand. The evolution of NOx emission trading along with the
growth of the control markets has resulted in some interesting
dynamics, said Smith. "Compliance through trading has engendered
lots of technology. Companies are selling a suite of compliance
options," rather than just one piece of control equipment.
While SCRs, SNCRs and low-NOx burners are prevalent, the emergence
of neural networks to maximize efficiency and minimize emissions
during the combustion cycle has been a major trend helping both
productivity and environmental performance. Leaders in NOx solutions
include Alstom, Babcock Borsig, Babcock Wilcox,
Hamon Research-Cottrell, Fuel Tech and others.
NOx emission credits are going for about $1,300/ton in the ozone
transport region (significantly higher than SO2 credits) and
have fluctuated from $400-$2,000.
Continuous emission monitors (CEMs) have
been another area of growth in air quality markets, said Smith.
After the CEM market took off due to stack monitoring requirements
being met in 1995 and 1996, demand faltered for the next few
years and sales fell. Recently new requirements have taken hold
but the CEM market is also driven by the need to maintain the
integrity of emissions trading programs and for compliance assurance.
The power sector remains the predominant market for CEMs. Smith
noted the tremendous pace of technical development in the past
few years and likened it to the pace of PCs. Leaders in the CEM
business include Land Combustion, Horiba Instruments,
STI, KVB and Fourney Corp. Presumably as
emission trading programs take hold in other regions and pollutants
and governments increasingly turn to market mechanisms like emissions
taxes and voluntary compliance, CEMs will have more non-regulatory
market drivers and potentially benefit from a more stable market.
Other growth areas could revolve around
mercury emissions, particularly from coal, and the broader demand
created by an expected rise in demand for clean coal technology.
Energy deregulation has had a "great effect" on the
APC business, said Smith, as it injected uncertainty into the
business as to 'who would own what' leading to postponement of
capital expenditures. Some of these deferred expenditures have
been working their way into driving recent market growth from
2000-2005, however. The energy crisis in the west and resulting
demand for power can only help the APC business as well, agree
executives. The more the world wants cheap power, the more the
world needs the APC business.
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