Swing Adsorption (PSA) Hydrogen Purification Systems (Contract No - PowerPoint PPT Presentation

HY2SEPS-2 Hybrid Membrane - Pressure Swing Adsorption (PSA) Hydrogen Purification Systems (Contract No 278538) Theophilos Ioannides FORTH/ICE-HT

HY2SEPS-2 General Overview Project full title: Hybrid Membrane - Pressure Swing Adsorption (PSA) Hydrogen Purification Systems Duration: 01/11/2011 – 31/10/2013 Total Budget: 1,606,279.00 € FCH contribution: 825,321.00 € Partnership FORTH (GR): Study of membrane materials UPORTO (PT): Study of sorbents and PSA separation systems PSE (UK)) Design and optimization of membrane separation systems HYGEAR (NL): Construction and testing of hybrid separation system CTI (FR): Design and manufacturing of ceramic supports and membranes

HY2SEPS-2 Summary Main project goal Design and testing of hybrid separation schemes that combine membrane and Pressure Swing Adsorption (PSA) technology for the purification of H 2 from a reformate stream that also contains CO 2 , CO, CH 4 , and N 2 Focus Small systems operating at pressures < 10 atm Approach Membrane & adsorbent development, Process modeling & optimization, Pilot unit testing. Expected Outcome Hybrid process with lower operating cost and enhanced H 2 recovery compared to present situation.

HY2SEPS-2: Design alternatives Process Modeling & Design New Adsorbents Screening Carbon Membrane R&D

HY2SEPS-2: Membranes (1/2) Carbon membrane development on ceramic supports -5 10 blank support H 2 /CH 4 & H 2 /N 2 selectivity obtained -6 10 through molecular sieving -1 -1 Pa Surface diffusion of CO 2 lowers H 2 /CO 2 -2 s -7 10 selectivity P, mol m -8 10 Focus: reduce the number of Membrane #1 preparation steps, tune CO 2 behavior -9 10 0 10 20 30 40 50 60 Deliverables H 2 /CO 2 selectivity Results on carbon membranes synthesis - characterization and testing (M12)

HY2SEPS-2: Membranes (1/2) Carbon membrane development on ceramic supports -5 10 blank support H 2 /CH 4 & H 2 /N 2 selectivity obtained -6 10 Membrane #2 through molecular sieving (Permeability ~ 10,000 Barrer) -1 -1 Pa Surface diffusion of CO 2 lowers H 2 /CO 2 -2 s -7 10 P, mol m selectivity -8 10 Focus: reduce the number of Membrane #1 preparation steps, tune CO 2 behavior -9 10 0 10 20 30 40 50 60 Deliverables H 2 /CO 2 selectivity Results on carbon membranes synthesis - characterization and testing (M12)

HY2SEPS-2: Membranes (2/2) Scale-up of carbon membrane synthesis and design of membrane module (M18) Initial development is carried out on single porous ceramic tubes with a characteristic porous layer ranging from 15 kD to 0.8 μ m. Next step: scaling-up to multi-channel tubes to improve surface/volume ratio. Delivery date: end April 2013.

HY2SEPS-2: PSA adsorbents (1/2) Milestone 3: Screening of new adsorbents • MOF(1) • MOF(2) • MOF(3) • Activated carbon monolith (ACM) • N 2 adsorption (303 K) CO 2 adsorption ACM 303 K MOF(1) 308 K MOF(1) Zeolite_2 (Hy2seps1) MOF(3) 303 K MOF(2) 303 K ACM Zeolite_1 (Hy2Seps1) 0.5 10 AC (Hy2SEPS1) 303 K q (mol/kg) q (mol/kg) 0.4 8 0.3 6 0.2 4 2 0.1 0 0.0 0 1 2 3 4 5 6 7 8 0 0.2 0.4 0.6 0.8 1 P (bar) P (bar)

HY2SEPS-2: PSA adsorbents (2/2) Milestone 3: Screening of new adsorbents • Selected material: MOF(1) • MOF(1) CO2 (308 K) CH4 (308 K) N2 (303 K) CO (303 K) H2 (303 K) 10 q (mol/kg) 8 6 4 2 0 0 1 2 3 4 5 6 7 8 P (bar) MOF(1) has a higher CO 2 working capacity and a higher CO 2 /H 2 selectivity than currently employed adsorbents (activated carbon)

HY2SEPS-2: Modeling Model-based design of hybrid PSA-membrane separation systems ‘High Fidelity’ PSA Model (PDAE) Modeling & Simulation ‘Approximate’ Model System Identification In-silico closed Multi-Parametric loop controller Programming Model Based Control validation & Validation Extraction of explicit MPC MATLAB controllers u = u ( x ( θ )) POP Toolbox

HY2SEPS-2: Outcome Expected output AIP Objectives Status at 50% of the Expected revised Topic: SP1-JTI-FCH.2010.2.3 Project project objectives Call: FCH-JU-2010-1 Hydrogen recovery 10% N/A 10% improvement 99.999 % H 2 & 99.999 % H 2 & Product gas quality N/A 75 % CO 2 75 % CO 2 Energy consumption of H 2 cleanup <0.004 <0.004 N/A <0.004 (kWh/Nm 3 H 2 )

HY2SEPS-2: Alignment Alignment to MAIP / AIP H – Hydrogen Production & Purification H03 – Gas purification technologies: Research and development on gas purification technologies for hydrogen production and quality monitoring in order to address short-term fuelling requirements based on conventional and alternative fuels like bio-fuels. Coordination with H02 is required. Several processes and feedstocks will be used to produce hydrogen either in centralised (large scale) plants providing economies of scale or distributed (small scale) plants taking advantage of locally available primary energy sources and feedstocks with the benefit of generally improved sustainability and lower distribution infrastructure costs.

HY2SEPS-2 Identify and comment on gaps/bottlenecks in RTD&D proposed by MAIP/AIP documents No gaps or bottlenecks detected related to hybrid PSA

HY2SEPS-2: Cross-cutting issues Training and Education Foundation for Research & Technology-Hellas, University of Porto, PSE Dissemination & public awareness PSE Advanced Process Modeling Forum (16-18 April 2013). Audience: Senior engineers from process industry. Euromembrane 2012, 23-27 September, London Website: hy2seps2.iceht.forth.gr

Enhancing cooperation and future perspectives • Technology Transfer / Collaborations Collaboration with adsorbent producers at research or development scale • Project Future Perspectives • Proposed future research approach and relevance • A successful outcome can be readily exploited by participating SMEs • Collaboration for adaptation of technology to specific hydrogen production units

Relevance to other projects CoMetHy: Compact Multifuel-Energy to Hydrogen converter Steam reforming in a membrane reactor for combined production- separation NEMESIS2+: New Method for Superior Integrated Hydrogen Generation System 2+ Hydrogen production from diesel/biodiesel. Use of a PSA unit for hydrogen purification. HyTIME: Low temperature hydrogen production from 2nd generation biomass ReforCELL: Advanced multi-fuel Reformer for CHP-fuel CELL systems (membrane reformer)