Reformer-Electrolyzer-Purifier (REP) for Production of Hydrogen [CO2 Pump] 2016 AMR (Annual Merit Review), Washington DC P.I. / Presenter -- Fred Jahnke ( [email protected] ) FuelCell Energy, Inc. June 8, 2016 Project ID #: PD112 This presentation does not contain any proprietary, confidential, or otherwise restricted information
26
Embed
Ultra-Clean, Efficient, Reliable Power - Energy.gov · Ultra-Clean, Efficient, Reliable Power Reformer-Electrolyzer-Purifier (REP) for Production of Hydrogen ... • Temperature profile
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Ultra-Clean, Efficient, Reliable Power
Reformer-Electrolyzer-Purifier (REP)for Production of Hydrogen [CO2 Pump]
10 x H2 per cell generated, external heat source is needed
4H2 + CO2
7
Challenges Faced
1. First of kind systema) Control of systemb) Safe operationc) Test facility limitations
2. Change in operating conditions compared to DFC®a) 3 x more feedb) 5 x more steamc) Pre-reforming of feed gas
3. Safe venting of product H24. High ampere power supply
8
Accomplishments
1. Single Cell Performance a) Performance matched expectationsb) Detailed model developed based on data
2. Life of fuel cell (based on single cell)a) Over 4,000 hours of operationb) Test halted due to power and feed interruptionsc) Degradation rate target achievedd) 2 – 5 yr stack projected life
3. Full Scale Cells Stack Testa) 30 Cell stack built and testedb) Testing produced 97-98% H2 @100 kg/d, matched
modelc) Good thermal profile generated
4. Analyzed system options (continuing)
9
REP Single Cell Test Facility
SingleCell
H2 Methanator
Feed Reformer
~3% of area
0.15 kg/d
10
Stable Operation over Long Term
Based on these accelerated test results, expect 2-5 year stack life.
11
REP Stack Testing
100 kg/d 2000 kg/d
12
Single cell test
100 kg/d test
Future
Preparing for Full Load Test
MBOP
(Mechanical Balance of
Plant)Feed
Prep, Fuel & Air Flow
REP30 cellStack
Pre-Reformer
DC Power(40 kw)
13
Walk Way
25 ft20
ft
Using existing DFC equipment for testing
100 kg/d potential
Same Equipment as needed for Standalone REP Demonstration
In Large Scale Test FacilitiesStack Test
14
Target Design Test Results
Amps 1040 950
Volts/cell <1.35 1.21 1.22
H2 Purity >95% 97.4 97.5
Kwh/kg <8 7.4 7.6
Kg/day ~100 123 110
CO2,g/gge ~5,500 4,900 4,700
Stack Full Load Test, NG Feed
Meets Target
Meets Target
Meets Target
Meets Target
Large Scale REP stack proven to be capable of 97%+ pure H2 production with low power input
Assumes $6.77/mmbtu NG (LHV), $0.057/kwh power. (2) Does not include CO2 associated with power used. (3) All water needed is already in SOFC anode exhaust (4) No additional CO2 emitted other than CO2 from power production (5) Potential CO2 capture for zero CO2 power from NG as well as H2 (6) Renewable Hydrocarbon Feed
UCI = University of California, IrvineHTTP = Hydrogen Production Technology Team
24
REP Development Summary
1. Single Cell Performance and Life results excellent2. Accurate model REP developed 3. Met Go-NoGo decision, proceeded to 100 kg/d test4. Optimizing system shows great potential for low CO2 emissions
a) Integrated with DFC and SOFCb) Standalone system / low level heat integrationc) Alternate feedstocks (gasifier, ADG, waste gas)d) Potential for zero CO2 production of H2
5. Initial performance test of short stack (100 kg/d)a) Excellent at low and full load. Performed as expectedb) No impact of operation in REP mode seen on stack
Same power generation performance before and after REP operation