gujarat university 8th semester chemical engineering nano catalysis in petrochemicals & refining...
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8/7/2019 gujarat university 8th Semester chemical engineering Nano Catalysis in Petrochemicals & Refining Industries
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Application of Nano Catalysis inPetrochemicals & Refining Industries
Dr. Anand HalgeriResearch Centre
Reliance Industries Limited
Vadodara 391 346
Workshop on
SURFACE SCIENCE ANDNANOTECHNOLOGY : NEW CHALLENGES
AND OPPORTUNITIES FOR ACADEMIAAND INDUSTRIES
at Dharmsinh Desai University
NADIAD
Saturday, March 1, 2008
A salute to the array of characterization tools
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Nanotechnology Application areas
Energy conversion and storage
Pharmaceuticals and diagnostics
Catalysis
SeparationsHigh-performance materials
Coatings
Electronics
Sensors
Promise in diverse fields
Nano tubes reinforcement & conductivityNano catalysts Enhanced productivityNano materials/devices Clean EnvironmentNano composites Niche products
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Nanoscale Effects in Catalysis
Modification of electronic structure
Interaction of different structure surfaces
Spill-over effects/other support interactions
Variation in fluid phase transport properties
Nano Particle size effect : Potential to increase
efficiency from, say, 60%to 90%
Size-Shape/Geometry- Quantum effects
Ability to manipulate interactions at atomic level
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Nanocatalysts - Size-Shape
130 nm Pt/CeO2 catalyst Fresh & 10 min after reaction
H2/O2 reaction at 1000 KChange in particle size & shape
[S. Johansson,et.al J. Vac.Sci. Tech. A 17 (1999) 297.]
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Nano materials - Economic impact
Nanomaterials by chemical industry - 1Bill. by 2007(for Top 50 chemical processes) - 35 Bill. by 2020
http://www.chemicalvision2020.org/nanotechnology.html
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Nano materials - Potential cost savings
http://www.chemicalvision2020.org/nanotechnology.html
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Nano materials Potential cost savingsby Industry
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NANOMATERIALS: The Challenges
Synthesis of diverse, high quality nanomaterial
building blocks (less than 100 nanometers)
Well- characterized chemical composition
Well-defined microstructure & stable architecturesEconomically viable manufacturing processes , Reproducible &
cost-effective
Predicted properties/ Structure-Property correlations
Clearly defined methods of assembly of nanomaterials intosystems and devices
Designs to perform specified functions
Evolving Nanostructures that deliver
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Nano catalysts The Features
35 times more enhanced catalytic
surface properties
Increased resistance to
de-activation over bulkcrystalline catalysts
< 1 gm/m3 Catalyst Of the
reactor volume yields 3 fold
product per m3
Projected global market for
Nano catalysts - $5bn by 2009
Small & uniform in size
Nanoproducts Corporation
USP-6652967- Dec.2003 ;www.nanoproducts.com
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Potential applications
Chemicals & Pharmaceutical manufacturing
Fuel cells
Automobile catalytic converters
Coatings
Environmental control
Petroleum refining
Regeneration of used catalysts
Nx Cat- Next Generation catalyst
HEADWATERS- Nanokinetix
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Nanocatalysts - Design & Fabrication
Supported metal catalyst
Headwaters - Nanokinetix
Nanoproducts Inc.
Catalytic Converters
Catalytic Solutions of Oxnard,
Nanostellar of Menlo Park and
Quantumsphere of Costa Mesa
Laboratory-Industry Transformation
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Headwaters - Nanokinetix
Design of catalysts for tomorrow!
Design of catalysts based on Nanochemistry / Nanotechnology
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Headwaters-DeGussa Process
Direct synthesis of H2O2 from H2 & O2 using nanocatalyst
Proprietary nanocatalyst- NxCat TM-Precious metalbased ( Pd alloy)
Degussa & Headwaters joint development Successful at pilot scale. Demonstration plant under
construction
Process by 2007 & plant 2008
Pilot plant at Hanau- Wolfgang
H2O2- Eco friendly oxidizing agent Manufacture of Propylene oxide, caprolactum &
phenol
Direct application of Nanocatalysis
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HEADWATERS- Nanokinetix
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HEADWATERS- Nanokinetix
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DSHP catalyst- Features
Critical particle size 2 Vs 4 nm
Activation specific to H2 & O2
Controlled particle size,
Bimetallic nano particle of specificcomposition
Effective dispersion
Unique surface structure
Effective anchoring of nano
particles
Expose specific crystal face-110
HEADWATERS- Nanokinetix
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Pd Nanoparticles supported on Carbon Nx CatTecchnology- Dr.Bing Zhou
Design of Nanocatalysts
HEADWATERS- Nanokinetix
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Nx Cat- Specific surface structure
HEADWATERS- Nanokinetix
Specific array of surface metal atoms
Facile & favourable adsorption of reactants Hydrogen-Dissociative Oxygen- Associative Facile desorption of product
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Nx Cat - Coal Combustion catalyst withNOx reduction
NxCat Catalyst Features
Highly dispersed low metalloading
2 nm iron based particles
Thin nanofilm coating
40% NOx reduction vscompetitors 0%
HEADWATERS- Nanokinetix
3 nm
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Nx Cat - Naphtha Reforming catalyst
HEADWATERS- Nanokinetix
1-2 nm bimetallic particlesSpecial hexagonal
nanostructure- Significant increase in
aromatics
selectivityAnchored particles No agglomeration/sintering- Deactivation reduced- Improved regeneration
toleranceHigher Gasoline octane
number-94 versus industry leader 79
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Nx Cat-
Additive for existing ebullatedbed
units or used as stand-alonecatalyst.Performs well on all crude oilsIncreases asphaltene conversionand reactor on stream timeReduces sediment, fouling, andcatalyst agglomeration
Higher throughput & conversionwith low cost heavy oilUp to $150k/day net added valuefor 50k BPD refiner
(HC)3 Heavy Oil Hydrocracking Catalyst(HC)3 Heavy Oil Hydrocracking Catalyst
HEADWATERS- Nanokinetix-HTI-ARCI
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Process technologies for PO
Dow Chemical & BASF PO plant in Antwerp,
Belgium - based on anthraquinone-route peroxide
supplied by Solvay.
Degussa & Headwaters new technology will yield
peroxide at a lower cost.
Degussa & Uhde to develop HPPO process,
peroxide-based propylene oxide process.
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Nano Gold- New Catalyst in the horizon
Gold- chemically inert, no reactivity with oxygen
Gold nano particles of 2-5 nm dia are active oxidatiou catalysts
Anchoring of gold onto support & stabilzing nano-structure is
crucial Raft like morphology is essential for nano structure stability
A bilayer surface strcuture, 45 times more active than bulk gold
is formed
Active for CO Oxidn, PO fuel cell catalysts, selective oxidationof olefins
Stability of the bilayer is the key issue
Synthesis of catalysts with tunable selectivity
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Nanocatalysis - R&D Road map
Synthesis methodsFunctional understanding
Structure-Property relationships
Characterization tools
Design of nanocatalystsManufacturing & Processing
Modeling &Simulation
Environmental Safety & Health
Chemical Industry R&D Roadmap for Nanomaterials by Design
Chemical Industry Vision2020 Technology Partnership
www.C
hemicalVision2020.org
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Thank you!