Billion Dollar Flow Control and Treatment Market to Reduce Coal Flyash
Contamination and To Make Valuable By-products
Coal-fired power plants are being forced to give up their traditional ash ponds
to prevent repetition of recent ash spill incidents in Tennessee and the
Carolinas. In the U.S. and elsewhere, the discharge limits on effluents are
becoming more stringent. As a result, this is generating a new opportunity for
suppliers of pumps, valves, filters and centrifuges. This opportunity is being
continually analyzed in a number of McIlvaine publications.
Zero liquid discharge systems are one solution. Wastewater is purified and
reused or evaporated. A number of systems have recently been installed in the
U.S., Italy and China.
The flyash formerly residing in ponds will be removed and placed in dry
landfills or made into useful products. The Chinese have a large program to
extract rare earths from the flyash.
Centrifuges, clarifiers, hydrocyclones and other sedimentation equipment will
play a major role in both process separation and wastewater purification as
these flyash landfills are processed. There is a major opportunity to extract
the rare earths at the time of coal combustion or gasification.
The largest gasification program is in China where more than one billion tons of
coal per year are slated for conversion. Other Asian countries are moving ahead
with coal-to-chemicals plants. The Ukraine has five plants underway to reduce
dependence on Russian gas.
Direct coal liquefaction uses grinding, hydrogenation and separation.
Centrifuges and clarifiers provide process separation. Indirect liquefaction and
coal-to-gas utilize gasification. The big uses of centrifuges and clarifiers are
in water and wastewater treatment.
The economics and environmental impact of coal conversion can be greatly
enhanced by rare earth recovery. In the past, an outside source of acid to leach
the rare earths has been needed. McIlvaine Company believes this expenditure can
be avoided.
By using the chlorine in coal, the rare earths can be extracted in what the
McIlvaine Company believes to be simply the marriage of two proven systems.
Making hydrochloric acid from coal is not a new idea. Using this technology for
rare earth leaching is new. The particulate and HCl emanating from the gasifer
are captured in a venturi scrubber. This is already the scheme used for the GE
gasifier. However, the proposed design recirculates acid to achieve a 30 percent
dirty acid concentration. A bleed stream with the flyash and acid is then sent
to a tank for further leaching. A number of additional separation steps are then
needed to produce the rare earths from the flyash. So this separation is another
opportunity for centrifuge and clarifier suppliers.
For more on N005 Sedimentation and Centrifugation World Markets, click on:
http://home.mcilvainecompany.com/index.php/markets/2-uncategorised/119-n005
Pumps World Markets, click on:
http://home.mcilvainecompany.com/index.php/component/content/article?id=75
N006 Liquid Filtration and Media World Markets, click on:
http://www.mcilvainecompany.com/brochures/water.html#n006
N064 Air/Gas/Water/Fluid Treatment and Control: World Market, click on:
http://home.mcilvainecompany.com/index.php/markets/27-water/445-n064-air-gas-water-fluid-treatment
Hot Gas Filter Discussion Will Be Continued On July 2
Twelve experts weighed in on hot gas filtration options at the Power Conference
held by AFS in Charlotte eight weeks ago. This discussion will be continued on
July 2 at 10:00 a.m. The purpose will be to help decision makers determine the
options which are available and guide them to select the option which best fits
their unique needs.
The discussion will be a constructive review and new additions for the following
decision guide route map and summary
http://home.mcilvainecompany.com/images/Hot_Gas_Filter_Decision_Guide_April_30_2015.pdf
The decision guide starts with a clean slate. Why place the SCR ahead of the
particulate collector? Why use a rotary air heater with 10 percent leakage and a
discharge temperature of 320oF? Why use multiple devices for particulate
filtration, NOx reduction, and acid gas absorption? Why not combine all the
technologies in one device?
There are two options which are fully explored. One is the conventional option
which results in particulate filtration at 320oF. The other is the catalytic
filter with filtration at 850oF.
The 320oF option has two routes. One is to use a dry scrubber and fabric filter.
The other is to use an electrostatic precipitator. This decision is dependent on
the dust limit and the ability of the precipitator to meet it. It is dependent
on decisions about by-products. In fact there are many factors which need to be
considered. How will each option deal with mercury? Are there water use and
pollution concerns? What space is available? What is the age and condition of
the existing air pollution control system? As you can see, all these are
addressed in the guide. However, there was a difference of opinion on:
Achieving 5 mg/Nm3 particulate continuously with a dry precipitator
Bag designs for the filter alternative
Media designs
Fiber selection
Method of cleaning
The greatest differences of opinion related to the 850oF option, should metallic
elements be used and followed by an SCR? Two variations are available: sintered
metal fibers and sintered powdered metal. Alternatively, why not use a ceramic
catalytic filter element? Both choices can be accompanied with DSI. If the
catalytic filter is the choice, then there are a number of related questions:
Will the catalytic filter element prove as good in large coal-fired boiler
applications as it has in industrial boilers, glass plants, mining operations,
etc?
Who will supply and guarantee the systems using catalytic filter elements?
Who will supply the elements?
Who will supply the catalysts and ceramic bundles?
One of the potential benefits of these expert discussions is the holistic
analysis. The question of pleated bags vs. tubular bags needs to take into
account the potential to vary the cleaning design. A more robust pulse cleaning
system and the pleated design may have to be matched against a less robust
cleaning design and the tubular bag.
There are billions of dollars being spent to improve the particulate removal
performance at coal-fired power plants in China, the U.S., South Africa, Europe,
Chile and even Russia. Cement plants and operators of industrial boilers are
also facing upgrades of their particulate removal systems at the same time they
are required to capture acid gases and reduce NOx. So this discussion is an
important one for combustor operators around the world.
Participants for Discussion on Hot Gas Filtration on July 2, 2015
Reid E. Thomas, Technical Director, Menardi-Filtex
Dr. John McKenna, Principal, ETS International, Inc.
Charles (Chuck) Capps, VP Sales & Marketing, FLSmidth Airtech, Advanced
Filtration Technologies
George Moeke, Regional Manager, North Mid-west, Clean Air Systems, Pentair,
Goyen Valves LLC
Rod Gravley, Technology Director, Tri-Mer Corporation and Kevin D. Moss,
Business Development Director, Advanced Technologies
Clint B.Scoble, Jr., President, Testori USA, Inc.
Manfred Salinger, Rath Group
Details on the webinar are found at: Click here to view schedule and register
Headlines for Utility E-Alert June 19, 2015
UTILITY E-ALERT
#1228 June 19, 2015
Table of Contents
COAL US
Federal Appeals Court strikes down Rules to cut Coal-fired Power Plant
Pollution
Industry Officials push for Congressional fix for EPA's Coal Waste Disposal
Rule
COAL WORLD
Pakistan Power Plant to be Set Up by China Firm
Public Hearing on SEPAs Authority to carry out Post-EIA monitoring of
Projects
GAS/OIL US
Siemens to Supply and Service Power Generation Technology for CPV Valley
Energy Center in Wawayanda, NY
GAS/OIL WORLD
Siemens to supply Three Combined Cycle Power Plants to Egypt
Safety Power Lands Three Orders for ecoCUBE System
Combined Cycle Power Plant to be built near Swift Current, Saskatchewan
E.ON confirms closure of Killingholme Power Station, UK
BIOGAS
Duke Energy testing Swine Waste-to-Power at NC Power Plants
NUCLEAR
South Koreas Oldest Nuclear Reactor to permanently shut down
Ningde 3 Nuclear Unit begins Commercial Operation in China
Construction Milestone for Fifth Yangjiang, China Unit
Fast Breeder Nuclear Reactor to begin operations this Year
DTE Energy Nuclear Unit License expands Midwest Power Generation Options
Geometric Power and GE to build 1,080 MW Power Plant in Nigeria
Unit 3 Steam Generator arrives from South Korea for Vogtle Expansion in
Georgia
BUSINESS
HBM Holdings acquires Breen Energy Solutions
EPRI receives $3 Million award for Power Plant Cooling Research
New Report from the IEA Clean Coal Center
PSEG Power acquires Maryland Combined Cycle Power Plant Project
Market for Wet Calcium FGD to Remain at a High Level
Operators are challenged to keep up with the Latest Gas Turbine Combined Cycle
Technology
$500 Million per Year for Gas Turbine Air Filters
HOT TOPIC HOUR
SO3 Decision Route Map is revised in Hot Topic Hour Yesterday (June 18)
Upcoming Hot Topic Hours
For more information on the Utility Tracking System, click on:
http://home.mcilvainecompany.com/index.php/databases/2-uncategorised/89-42ei
McIlvaine Hot Topic Hour Registration
On Thursdays at 10:00 a.m. Central time, McIlvaine hosts a 90 minute web meeting
on important energy and pollution control subjects. These Webinars are free of
charge to owner/operators of the plants. They are also free to McIlvaine
Subscribers of Power Plant Air Quality Decisions and Utility Tracking System.
The cost for others is $300.00 per webinar.
See below for information on upcoming Hot Topic Hours. We welcome your input
relative to suggested additions.
DATE SUBJECT DESCRIPTION
July 2, 2015 Hot Gas Filtration More Information
July 23, 2015 Mercury Removal Options More Information
Click here for the Subscriber and Power Plant or Cement Plant Owner/Operator
Registration Form
Click here for the Non-Subscribers Registration Form
----------
You can register for our free McIlvaine Newsletters at:
http://home.mcilvainecompany.com/index.php?option=com_rsform&formId=5
Bob McIlvaine
President
847-784-0012 ext 112
rmcilvaine@mcilvainecompany.com
www.mcilvainecompany.com