BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Denver BEGIN:DAYLIGHT DTSTART:20250309T030000 TZOFFSETFROM:-0700 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:MDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20251102T010000 TZOFFSETFROM:-0600 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:MST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20251027T222319Z UID:19C9CC34-82D5-4079-8C5A-60EE37062ECC DTSTART;TZID=America/Denver:20251024T110000 DTEND;TZID=America/Denver:20251024T120000 DESCRIPTION:Green hydrogen produced through the thermochemical reforming of agricultural residues presents a sustainable solution for mitigating glob al warming. Corn stover\, a renewable and carbon-rich agricultural residue \, is an efficient feedstock for sustainable green hydrogen production via thermochemical processes. In this work\, A 2kg lab scale thermo-catalytic reforming unit consisting of an intermediate pyrolysis auger reactor (400 - 500 °C) and a reformer (500 - 700 °C) was used to focus on hydrogen-r ich TCR gas production. We also characterized the resulting pyrolysis prod ucts\, including bio-oil and char. The optimum reactor and reformer temper atures for TCR gas production were identified as 500°C and 675°C\, respe ctively. Under these conditions\, organic liquid production was 2.44%\, ch ar production was 25.37%\, and TCR gas production was 58.55%\, with 22.96% being H2. The syngas produced\, with an HHV of 7.91 MJ/Nm3\, serves as a precursor for advanced processes like Fischer-Tropsch and Haber-Bosch\, en abling the production of synthetic fuels and chemicals. The bio-oil produc ed under these conditions demonstrated favourable characteristics\, includ ing an HHV of 34.85 MJ/kg\, an O/C ratio of 0.12\, and an H/C ratio of 0.0 8. These values indicate improved bio-oil quality compared to lower reform ing temperatures (400/500°C)\, which yielded an HHV of 28.76 MJ/kg\, an O /C ratio of 0.38\, and an H/C ratio of 0.12. At 25°C\, the density of the bio-oil was 1080 kg/m3\, with a dynamic viscosity of 45.6 mPa·s and a ki nematic viscosity of 42.4 mm2/s. The char produced at 500/675°C had an HH V of 11.71 MJ/kg\, compared to 15.89 MJ/kg at 400/500°C\, and offers pote ntial as a secondary fuel in combined heat and power (CHP) systems. SEM an alysis revealed high surface porosity in the biochar\, confirming its suit ability for surface water phosphorus absorption. Our findings suggest that intermediate pyrolysis coupled with catalytic reforming is a promising pa thway for green hydrogen generation and valorization of pyrolysis byproduc ts\, with potential applications in renewable energy and sustainable agric ulture.\n\nCo-sponsored by: Resilience and Clean Energy Systems (RCES)\n\n Speaker(s): Ebenezer Adewola\n\nVirtual: https://events.vtools.ieee.org/m /502174 LOCATION:Virtual: https://events.vtools.ieee.org/m/502174 ORGANIZER:xiaotin5@ualberta.ca SEQUENCE:4 SUMMARY:Hydrogen generation via dry reforming of corn stover pellets using corn stover biochar as catalyst URL;VALUE=URI:https://events.vtools.ieee.org/m/502174 X-ALT-DESC:Description: <br /><p><em>Green hydrogen produced through the th ermochemical reforming of agricultural residues presents a sustainable sol ution for mitigating global warming. Corn stover\, a renewable and carbon- rich agricultural residue\, is an efficient feedstock for sustainable gree n hydrogen production via thermochemical processes. In this work\, A 2kg l ab scale thermo-catalytic reforming unit consisting of an intermediate pyr olysis auger reactor (400 - 500 &deg\;C) and a reformer (500 - 700 &deg\;C ) was used to focus on hydrogen-rich TCR gas production. We also character ized the resulting pyrolysis products\, including bio-oil and char. The op timum reactor and reformer temperatures for TCR gas production were identi fied as 500&deg\;C and 675&deg\;C\, respectively. Under these conditions\, organic liquid production was 2.44%\, char production was 25.37%\, and TC R gas production was 58.55%\, with 22.96% being H2. The syngas produced\, with an HHV of 7.91 MJ/Nm3\, serves as a precursor for advanced processes like Fischer-Tropsch and Haber-Bosch\, enabling the production of syntheti c fuels and chemicals. The bio-oil produced under these conditions demonst rated favourable characteristics\, including an HHV of 34.85 MJ/kg\, an O/ C ratio of 0.12\, and an H/C ratio of 0.08. These values indicate improved bio-oil quality compared to lower reforming temperatures (400/500&deg\;C) \, which yielded an HHV of 28.76 MJ/kg\, an O/C ratio of 0.38\, and an H/C ratio of 0.12. At 25&deg\;C\, the density of the bio-oil was 1080 kg/m3\, with a dynamic viscosity of 45.6 mPa&middot\;s and a kinematic viscosity of 42.4 mm2/s. The char produced at 500/675&deg\;C had an HHV of 11.71 MJ/ kg\, compared to 15.89 MJ/kg at 400/500&deg\;C\, and offers potential as a secondary fuel in combined heat and power (CHP) systems. SEM analysis rev ealed high surface porosity in the biochar\, confirming its suitability fo r surface water phosphorus absorption. Our findings suggest that intermedi ate pyrolysis coupled with catalytic reforming is a promising pathway for green hydrogen generation and valorization of pyrolysis byproducts\, with potential applications in renewable energy and sustainable agriculture.</e m></p> END:VEVENT END:VCALENDAR