CTPH2 Presentation
8 MB Posted
- Solicitation number
- ONRBAA08-024
About this file
CTPH2 Presentation (08-08-11) NAVY Industry Day_r2_Rackey
Text of this file
Scott Rackey - President CTP Hydrogen Corporation 131 Flanders Road Westborough, MA 01581 508-898-2223 www.ctphydrogen.com High Temperature Fuel Cell (SOFC) Based Auxiliary Power Unit Industry Day August 11, 2008
The Case for Fuel Cells Multi-billion dollar market for portable and remote power, but:
Limits access to power in multiple applications Batteries
| Limited energy |
| Slow to recharge |
| Heavy |
| Hazardous |
| Expensive |
Engine Gen-Sets
| High emissions: |
| NOx & Particulates |
| CO |
| Loud |
| Inefficient |
| Short life |
The Problem with Fuel Cells: Fuel!
Hydrogen fuel cells already work well, if provided with pure hydrogen
Most are poisoned by Carbon Monoxide All are poisoned by Sulfur
| Transporting and storing Hydrogen is typically not economic due to the high cost of compression or liquefaction |
| SOFCs run on hydrocarbon fuels, but “reforming” them into sulfur-free syn-gas is challenging |
Until now…
Multi-Step Hydrocarbon Reforming
Steam SMR Reactor Shift Reactor PrOx Reactor De-Sulfurizer Pd or PSA Separator Fuel Air Exhaust H2
Single-Step Hydrocarbon Reforming
CTP H2 Reactor
Fuel Air Exhaust
New “Single-Step Conversion” process
| Based on proprietary new material |
| Pure H2 generated |
(physically isolated from fuel impurities)
| Fully Sulfur tolerant |
| No need for current collection – far easier and more robust than SOFC |
Mixed Conducting Membrane
H2O H2 O= CxHy Sz
H2O, CO2,
SO2
2e-
Chemically-Driven Electrolysis Driven by Difference in Oxygen Partial Pressure
Cathode (Steam) H2O +2e- H2+O=
O2- 2e-
Dense MEIC Membrane Anode (e.g. CO) CO+O= CO2 + 2e-
CO
CO2
H2O H2 High pO2 (~ 10-12 10-14) Low pO2 (~ 10-18 10-14)
Nernst Potential =
RT
nF ln
(pO2)anode (pO2)cathode
= ~ 0.1 V -0.2 V
Simulated JP5 – 200 ppm H2S
2008 Target Level
Simulated Propane – 10 ppm H2S
2008 Target Level
One Reformer for Most Types of Feedstock
Exhaust Fuel Renewables Diesel Gasoline Propane Natural Gas
From Process to Product (How We Build a Membrane Reformer) 2-Phase, Mixed Conducting Dense Membrane
Inert Porous Support Reactor Tube with Steam Delivery Integrated System
Chemical Cycle of Integrated System (PEMFC)
O= CxHy + Sz
H2O, CO2,
SO2
2e-
Oxygen e- PEM Fuel Cell N2 (&H2O)
H+ N2, O2 H2O, N2
(make-up)
Real Running Hardware
Real Running Hardware
How CTP Builds Integrated Generation Systems
~120 VAC
Inverter PEM Fuel Cell Reactor
Fuel
CTP H2 Reactor
PEMFC
(off the shelf)
18 VDC
Controller
CTP Generation System
Inverter (off the shelf)
Overall Chemical Cycle of the System (SOFC)
O= CxHy + Sz
H2O, CO2,
SO2
2e- H2O
SOFC
N2, O2 N2 e- O=
Oxygen
Interfacing with SOFC - Advantages No Desulfurizer
Fuel-to-electric efficiency (DC out / LHV in):
38% with POX gasification 54% with steam gasification
Enables Smaller / Lower cost SOFC (due to higher power density)
Pure H2 Fuel Low "single pass" fuel utilization (recycling results in 100% overall utilization) Shared BOP components
Interfacing with SOFC - Advantages Greater SOFC robustness
No nickel sulfidation No anode coking No nickel oxidation during start up or shut down
Superior load following
Idles with zero flow Zero to full output in < 5 seconds
Better water management for the reformer
SOFC Anode and reformer fuel-side exhaust water recaptured Water-neutral system possible
Currently Focusing on kW-Scale Systems
| Large cell manufacturing process working well |
| BOP and reactor fabrication largely complete |
| 1 kW Demonstration expected at end of August |
Proposed 2 kW system
Costs Drop Quickly with Scale Cost/unit ($000) Prototype 1 MW/yr 10 MW/yr 250 W Generator 2 kW Reformer
CTP Team 10 People
Technology focused
60 years FC experience
Strategic Partners Navy - SBIR Phase II
Operation on diesel/JP5 Scale-up to 1 - kW
Boston University – Dr. Gopalan & Dr. Pal
Development of high-performance materials Multi-physics modeling of MEIC reforming process
Questions?
Other files
Show all 48
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
File details come from the government source that posted it. Updated .