Anti-coking barriers for Olefins

Alameda Applied Sciences Corporation 3077 Teagarden Street, San Leandro, CA 94577; Tel: 510-483-4156; Fax: 510-483-8107
CEDTM Process to Deposit Anti-Coking Films inside Olefin Furnace Tubes
Relevance to Other Applications: Erosion-resistant coatings for small,
medium and large-caliber gun
barrels
Epoxy mounting
material
AASC Proprietary alloy
(12μm)
Technical Description: Alameda Applied Sciences Corp. has developed a proprietary
Coaxial Energetic Deposition (CEDTM) process to deposit anticoking, thermal barrier films on the insides of Olefin furnace
tubes. CEDTM uses energetic ion deposition & plasma
immersion ion implantation in coaxial, planar and complex
substrates for advanced surface modification. Energetic ions
(20-150eV) interact with the first few monolayers of the
substrate to break up voids and columnar microstructures. The
CEDTM process is augmented by pulsed Implantation (>1kV
pulses), whose higher energy ion impacts relieve the stress
generated by moderate (~10-50eV) energy condensation. Capability / Advantage over Other Technologies: •
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Produces dense films
Deposits ~10~100µm films
Deposits metals, alloys, oxides, nitrides and carbides
Deposits at <100oC temperature, ideal for polymers
Creates films with low pinhole defect density
Creates strong adhesion via stress relief and substrate/film
inter-mixing
Allows tailored film stress and tailored interfaces
Implantation improves film and substrate mixing in the first
few monolayers to improve adhesion Relevance to Customer / End User: Ethylene and other olefins are cracked in large furnaces.
Cracking ethylene leads to carbon based soot commonly called
coke that can clog the furnace tubes. The furnaces must be
shutdown periodically to clean the tubes. The maintenance
cost of furnaces for coke buildup exceeds $1B/year worldwide.
AASC is poised to demonstrate that CEDTM ceramic coatings
can increase the time between shutdowns, to improve the
capacity factor of the furnaces. 4340 steel substrate
DoD customers
would benefit from refractory
(substrate)
coatings inside gun barrels. We have also grown
many varieties of 9-30K superconducting thin-films
for RF cavity applications.
Company: Alameda Applied Sciences Corporation Address: 3077 Teagarden Street, San Leandro, CA 94577-­‐5720 POC: Mahadevan Krishnan Phone: 510-­‐6764687 Email: [email protected] URL: www.aasc.net Yrs in Business: 17 Total Revenue: $1-­‐5M Technology Readiness Level (TRL): 4. Component
and/or breadboard validation in laboratory
environment Transition/Insertion Issues: We have demonstrated the CEDTM process at the
coupon and small tube level for anti-coking
performance. We seek suitable partners to
accomplish the next milestone: to demonstrate the
process on 10-20ft long segments of actual Olefin
furnace tubes. Beyond this, a pilot plant level
demonstration would establish the compelling
financial advantage of the CEDTM coatings and lead
to furnace tube upgrades worldwide. IP: We have rights to a process patent and we have a
method and apparatus patent issued by the US PTO.
Est. Labor, Dollars, Timeframe to Completion: We envision a ~$3M/18-month effort to complete
the 10-20ft furnace tube coating/test milestone.
Beyond that, a Pilot Scale demonstration would take
24-36 months at a cost TBD.