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富利康科技股份有限公司
Ceramic Filter Elements
for Hot Gas Filtration
富 利 康 科 技 股 份 有 限 公 司CLEAN AIR TECHNOLOGY LIMITED
2
About FLKCAT Ltd
A new company entering the air pollution control sector
Aim to supply the best technologies for monitoring and controlling air pollution
Operating globally
Experienced personal – proven technologies
Technical partnerships – commercial strength
Speciality is ceramic filters with integrated catalysts
3
Air pollution control
Technology used to control emissions from industrialsites to atmosphere for over 100 years
Particulate control market dominated by electrostaticprecipitators and fabric filters
Others include cyclones, scrubbers, metal filters andceramic filters – specialist techniques for specialistapplications
Our area of speciality and the subject of today’spresentation is ceramic filters with integrated catalystsfor industrial air pollution control
4
What are ceramic filters?
Many types of ceramic products used for filtration
Honeycomb filters – engines
Dense ceramics used in high pressure high temperature applications
We are focussing on products made with ceramic or mineral fibres –formed into tubes/candles
Compatible with standard bag filter design concepts
Good with “high” dust duties
5
FLKCAT Ceramic Filter Products
6
Ceramic filter features
Highly porous
One piece construction
High Efficiency particulate removal
Chemically almost inert
High temperature resistance
Longest product 3 meters long
Rigid otherwise works like a fabric bag
Used with a sorbent can remove acid gases such as SOx and HCl
Combined with a catalyst can remove pollutants such as NOx and dioxins
7
Dust removal
Some particulate
penetrates the surface and
acts as a barrier to further
dust penetration
Dust accumulates on the
surface and is removed by
cleaning pulses
Non-blinding
High efficiency
8
Acid gas removal
Sorbent such as hydrated lime
Ca(OH)2 added as particulate
to gas stream
Sorbent accumulates on the
filter element surface
Pollutants such as SOx and
HCl must pass through dust
cake, and are neutralised by
sorbent
Spent sorbent is removed by
cleaning pulses
9
Catalyst filter for DeNOx
Catalyst distributed
throughout filter element
structure
Ammonia added to gas stream
to remove NOx
Pollutants must pass through
filter and, in doing so, come
into contact with the catalyst
NOx and dioxins are converted
into harmless products, such
as nitrogen and water
10
Advantages – eliminates catalyst failure modes
Catalyst is protected against the poisons such as As Se Na and K because dust stays on filter surface
Catalyst is protected against dust blockage and blinding
Catalyst life is extended >5 years expected
Catalyst evenly distributed
11
Filter properties recap
Features Benefits
Ceramic composition Chemically inert with HF only known hazard
Maximum temperature of operation 900oC
Filter made from ceramic
fibres
The use of fibres gives the best balance of high efficiency and resistance to flow
Rigid filter element A support cage is not required
A surface dust layer provides high efficiency dust removal. Less than 2 mg/Nm3 is typical.
Non-blinding due to the surface dust layer, which gives long product life. 5 years and over
is not untypical.
Small fibre diameter and surface dust layer ensures that even submicron particulates are
captured.
The use of a sorbent gives an excellent bed for acid gas removal. High removal efficiencies
can be obtained at higher temperatures of operation, with greater than 90% efficiencies
readily achievable.
Manufactured in one piece No weak points such as bag stitching seams
Tubular shape Compatible with standard bag house designs
Catalyst embedded into
the filter element
Catalyst has high conversion efficiency for NOx and organic compounds
Optimal operation temperature of 350oc
Filter prevents poisoning of catalyst
Filter prevents masking of catalyst by dust particles
No chemical reaction between catalyst and ceramic filter
Nano sized catalyst particles present highly active catalyst sites
High performance achieved through no diffusion restriction
12
Performance
13
Technology options
Catalyst Ceramic
filter
Bag filter
ESP
稀釋空氣
冷却系統
熱交換系統
DeNox
DeSOx
De-Dust
350℃
200℃
350℃
SCR
SCR
Wa
ste
Ga
s
Heat recovery System
14
Ceramic filtration markets
Market driver is Legislation
Incineration – WID
Glass – “Glass BREF”
MACT
Process efficiency gains
Improved product
Hot gas with value – energy recovery
Energy savings
15
Markets
Ceramic element – dust and SOx removal
Incinerators
Gasification
Waste to energy
Metallurgical
Product recovery
Process filtration
Catalytic ceramic element -dust, SOx & NOx removal
Glass furnaces
Cement
Diesel engines
Power generation
16
Glass Market
• Proven product offering
• Proven benefits
• Design refined
• Established references
• Established networks
• Dust SOx and NOx
• Market knowledge
17
Advantages
Highest level of efficiency – no visible dust
High temperature capability up to 900oC with dust filter and up to 350oC with the catalyst
Multi-functional – removes dust SOx NOx HCl VOCs in one single step in one piece of equipment with excellent efficiency levels
Smaller footprint
Opportunities to save capital cost and operational costs
18
Key product features and benefits
The combination of ceramic filter and deNOx catalyst is a powerful combination
Considerable technical advantages over other technologies
Commercial advantages over other technologies
“Cheaper and better” is possible
Good for dust, SOx and NOx applications
Reliable and high performance
Long life expected
Growing market
19
Conclusions
Proven technology
Hundreds of references
Superior technical performance
Savings possible on capital and operational costs
Known performance
Long life of product
Technical back up from first class team
The ultimate multi-pollutant control technology
20
Glass Factory
TSYP,China,2015
Right: catalyst ceramic filter appliedLeft: not applied